Journal articles on the topic 'Water reuse Australia Health aspects'
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1
Tortajada, Cecilia, and Sunil Nambiar. "Communications on Technological Innovations: Potable Water Reuse." Water 11, no. 2 (January 31, 2019): 251. http://dx.doi.org/10.3390/w11020251.
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Water scarcity has prompted an increasing number of cities to look for non-conventional sources of clean water. One of these sources is reused water, or highly treated reclaimed or recycled wastewater, a worthy addition to the portfolio of water-resource alternatives that increasing cities are considering in view of demographic and environmental changes. In this paper, we analyse communications from the media, policymakers and utility managers on the technology used to produce reused water for potable purposes. The focus of our analysis is technology as a means for producing safe and reliable water supply in the long-term. Three places were selected because of their differing experiences with social acceptance: Singapore, Orange County (California, United States), and Queensland (Australia). We found distinct differences in the communications used in the three places, which we believe have strongly influenced public opinion on the provision of clean water through potable water reuse. In communicating technological innovations to the public, it is essential to also discuss the broader framework affecting reliable water supplies. In this light, planning, legal and regulatory frameworks, institutional coordination, financial sustainability, and operational aspects should also be communicated.
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Muston, M. H. "Changing of the water recycling paradigm in Australia." Water Supply 12, no. 5 (August 1, 2012): 611–18. http://dx.doi.org/10.2166/ws.2012.034.
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The development of water recycling schemes in Australia has, in recent years, undergone a maturity characterised by some emerging trends in the paradigm of water reuse and its integration into the overall water supply strategies for large urban and peri-urban areas. This paper looks at case studies within the context of these observed trends and discusses the institutional frameworks as well as some technical aspects of the case studies to illustrate the trends. Comparison is made with some selected international examples to develop a better understanding of these recent Australian developments within the international context. While not a complete inventory of the many recent recycling schemes in Australia, the paper examines these emerging trends within the context of the growing number of larger-scale industrial, agricultural and dual reticulation urban recycled water systems in Australia and the trend to decentralised recycling schemes.
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Greenway, Margaret, and John S. Simpson. "Artificial wetlands for wastewater treatment, water reuse and wildlife in Queensland, Australia." Water Science and Technology 33, no. 10-11 (May 1, 1996): 221–29. http://dx.doi.org/10.2166/wst.1996.0678.
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Queensland, Australia has a subtropical-tropical climate with dry winters and wet monsoonal summers. Arid climatic conditions prevail inland with hot dry days and cold nights. The climatic conditions are conducive to high plant growth rates and hence offer great potential for constructed wetlands for water pollution control. The water (a scarce resource during the dry season and in arid regions) can also be used to irrigate crops, playing fields, parks and gardens or golf courses. The water discharged from the wetlands is also of an acceptable quality to flow into estuarine and riverine environments. Many natural wetlands are only seasonally inundated and during the dry season wildlife has to seek alternative refuges. Artificial wetlands receiving sewage effluent provide permanent wildlife habitats and improve the landscape amenity. The Queensland government's Department of Primary Industries has initiated an Artificial Wetlands for Water Pollution Research Program. Under this scheme 10 experimental pilot artificial wetlands have been established and a further 6 university research projects are being conducted on various aspects of artificial wetlands including nutrient and heavy metal uptake and bioavailability in wetland plants, sediment biogeochemistry and mass balances. One gold mine rehabilitation project has an artificial wetland to treat mine leachate. This paper presents 3 case studies which include significant results with respect to wastewater polishing and re-use.
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Ho, G., S. Dallas, M. Anda, and K. Mathew. "On-site wastewater technologies in Australia." Water Science and Technology 44, no. 6 (September 1, 2001): 81–88. http://dx.doi.org/10.2166/wst.2001.0346.
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Domestic wastewater reuse is currently not permitted anywhere in Australia but is widely supported by the community, promoted by researchers, and improvised by up to 20% of householders. Its widespread implementation will make an enormous contribution to the sustainability of water resources. Integrated with other strategies in the outdoor living environment of settlements in arid lands, great benefit will be derived. This paper describes six options for wastewater reuse under research by the Remote Area Developments Group (RADG) at Murdoch University and case studies are given where productive use is being made for revegetation and food production strategies at household and community scales. Pollution control techniques, public health precautions and maintenance requirements are described. The special case of remote Aboriginal communities is explained where prototype systems have been installed by RADG to generate windbreaks and orchards. New Australian design standards and draft guidelines for domestic greywater reuse produced by the Western Australian State government agencies for mainstream communities are evaluated. It is recommended that dry composting toilets be coupled with domestic greywater reuse and the various types available in Australia are described. For situations where only the flushing toilet will suffice the unique “wet composting” system can be used and this also is described. A vision for household and community-scale on-site application is presented.
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Duarte, Victor Magalhães, Luciano Matos Queiroz, Ednildo Andrade Torres, and Asher Kiperstok. "Energetic aspects and opportunities for reusing water on offshore platforms in Campos Basin, Brazil." Ambiente e Agua - An Interdisciplinary Journal of Applied Science 12, no. 5 (August 23, 2017): 786. http://dx.doi.org/10.4136/ambi-agua.2121.
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In the drilling and production of oil at sea, a large quantity of potable water used is most commonly transported to oil platforms using offshore supply vessels (OSVs). Sea water desalination is used as well, but only in a few oil platforms. To minimize energy consumption, water supply options were studied. The desalination of seawater and the reusing of streams of grey water and black water were evaluated and compared with the characteristics of the current supply via OSVs. In both desalination and OSV water supply options an electrolytic wastewater treatment plant is used. The objective of this study was to analyze the current situation regarding water supply on offshore platforms located in the Campos Basin, Rio de Janeiro, Brazil, and to propose measures to take advantage of opportunities to reuse water and reduce energy expenditure. Two alternative scenarios were developed that involved the reuse of water that comes from the effluent of a biological wastewater treatment plant (WWTP). Information on the logistics of supplying water to platforms was obtained through direct consultation with companies and sources in the literature. The results show that annual energy consumption (uptake, treatment, transportation, use and waste water treatment) of water on offshore platforms is currently 1.89 GWh, and that a reduction of 1.8 GWh of the energy consumed can be achieved using advanced reuse treatments. Energy consumption in the water reuse treatment is more competitive than those of transport by OSVs or seawater desalination.
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Sarikaya, Hasan Z., and Veysel Eroglu. "Wastewater Reuse Potential in Turkey: Legal and Technical Aspects." Water Science and Technology 27, no. 9 (May 1, 1993): 131–37. http://dx.doi.org/10.2166/wst.1993.0187.
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Treated wastewater is one of the potential water resources in especially arid and semi arid regions. Overall, Turkey is not poor in terms of water sources. However, due to distribution of water in time and in space water shortage is felt. Wastewater reuse potential is especially high during summer months for agricultural and recreational purposes. In coastal areas of Turkey treated wastewaters from the coastal settlements are reused to irrigate the green areas and parks. Surplus effluents are discharged into the sea by use of marine outfall pipes. Extended aeration type of activated sludge processes followed by chlorination is the most common form of the treatment. Agricultural reuse is encouraged in inland rural regions. Simple wastewater treatment methods such as stabilization ponds are popular in rural areas. Water quality standards regulating irrigational wastewater reuse are recently set in Turkey. Guidelines given by World Health Organization (WHO) are generally adopted except the limits for the intestinal nematodes and the residual chlorine. Irrigational reuse standards as well as the degree of the treatment have to be revised based on the local experiences. Assurance of a given effluent quality is one of the major problems in management of the wastewater reuse in rural areas. Local examples are presented to illustrate this point.
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Pronk, G. J., S. F. Stofberg, T. C. G. W. Van Dooren, M. M. L. Dingemans, J. Frijns, N. E. Koeman-Stein, P. W. M. H. Smeets, and R. P. Bartholomeus. "Increasing Water System Robustness in the Netherlands: Potential of Cross-Sectoral Water Reuse." Water Resources Management 35, no. 11 (August 17, 2021): 3721–35. http://dx.doi.org/10.1007/s11269-021-02912-5.
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AbstractWater reuse has the potential to substantially reduce the demand on groundwater and surface water. This study presents a method to evaluate the potential of water reuse schemes in a regional context and demonstrates how water reuse propagates through the water system and potentially reduces pressure on groundwater resources. The use of Sankey diagram visualisation provides a valuable tool to explore and evaluate regional application of water reuse, its potential to reduce groundwater and surface water demand, and the possible synergies and trade-offs between sectors. The approach is demonstrated for the Dutch anthropogenic water system in the current situation and for a future scenario with increased water demand and reduced water availability due to climate change. Four types of water reuse are evaluated by theoretically upscaling local or regional water reuse schemes based on local reuse examples currently in operation in the Netherlands or Flanders: municipal and industrial wastewater effluent reuse for irrigation, effluent reuse for industrial applications, and reuse for groundwater replenishment. In all cases, water reuse has the potential to significantly reduce groundwater extraction volume, and thus to alleviate the pressure on the groundwater system. The water-quantity based analysis is placed in the context of water quality demands, health and safety aspects, technological requirements, regulations, public perception, and its net impact on the environment. This integrative context is essential for a successful implementation of water reuse in practice.
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Chiou, R. J., T. C. Chang, and C. F. Ouyang. "Aspects of municipal wastewater reclamation and reuse for future water resource shortages in Taiwan." Water Science and Technology 55, no. 1-2 (January 1, 2007): 397–405. http://dx.doi.org/10.2166/wst.2007.058.
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The Water Resources Agency (WRA), Ministry of Economic Affairs (MOEA) has predicted that the annual water demand in Taiwan will reach approximately 20 billion m3 by 2021. However, the present water supply is only 18 billion m3 per year. This means that an additional 2 billion m3 have to be developed in the next 17 years. The reuse of treated wastewater effluent from municipal wastewater treatment plants could be one target for the development of new water resources. The responsible government departments already have plans to construct public sewerage systems in order to improve the quality of life of the populace and protect the environment. The treated wastewater effluent from such municipal wastewater treatment plants could be a very stable and readily available secondary type of water resource, different from the traditional types of water resources. The major areas where reclaimed municipal wastewater can be used to replace traditional fresh water resources include agricultural and landscape irrigation, street cleaning, toilet flushing, secondary industrial reuse and environmental uses. However, necessary wastewater reclamation and reuse systems have not yet been established. The requirements for their establishment include water reuse guidelines and criteria, the elimination of health risks ensuring safe use, the determination of the wastewater treatment level appropriate for the reuse category, as well as the development and application of management systems reuse. An integrated system for water reuse would be of great benefit to us all by providing more efficient ways to utilise the water resources.
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Poussade, Y., A. Roux, T. Walker, and V. Zavlanos. "Advanced oxidation for indirect potable reuse: a practical application in Australia." Water Science and Technology 60, no. 9 (November 1, 2009): 2419–24. http://dx.doi.org/10.2166/wst.2009.665.
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December 2008 marked the completion of Stage 2B of the Western Corridor Recycled Water (WCRW) Project in South East Queensland, Australia. With a maximum combined production capacity of 232 million litres of purified recycled water a day, it is the third largest recycled water scheme in the world and the largest in southern hemisphere. A seven-barrier approach has been used to ensure very highest quality, safe water is produced at all times for the purpose of indirect potable reuse. Three of these barriers occur in the advanced water treatment section of the WCRW Project: micro- or ultra-filtration (MF), reverse osmosis (RO), and H2O2/UV advanced oxidation. In addition to providing very efficient disinfection, the advanced oxidation process specifically aims at destroying compounds not fully rejected by RO that are potential health hazards. This includes N-nitrosodimethylamine (NDMA), which is a potential carcinogenic product likely to be formed by chlorination or chloramination of wastewaters. As in many other countries, Australia has adopted a stringent guideline limit for this compound of 10 ng/L in purified recycled water. After 16 months of operations of the WCRW Project's first plant, the advanced oxidation system has been proven effective in removing NDMA and ensuring 100% compliance with the regulation at a controlled cost.
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Kracman, B., R. Martin, and P. Sztajnbok. "The Virginia Pipeline: Australia's largest water recycling project." Water Science and Technology 43, no. 10 (May 1, 2001): 35–42. http://dx.doi.org/10.2166/wst.2001.0573.
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The need to conserve, reuse and recycle water is becoming increasingly important for both environmental and economic reasons. The Virginia Pipeline is Australia's largest water recycling project. More than half the output from (the capital of South Australia) Adelaide's largest wastewater treatment plant is further treated to achieve a product water quality fit for irrigation of vegetable crops with minimal public health restrictions. The project partners have a vision to achieve total reuse. To achieve this vision, recycled water will need to be stored during cool weather periods when the demand for water is low. Temporary storage of this water in poor quality aquifers is the subject of a major research project.
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Sala, L., and M. Serra. "Towards sustainability in water recycling." Water Science and Technology 50, no. 2 (July 1, 2004): 1–7. http://dx.doi.org/10.2166/wst.2004.0074.
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Those like us who believe in and spread the gospel of planned wastewater reclamation and reuse usually emphasize that this is a step towards sustainability in water resource management, but this is something that is very seldom analyzed. This paper discusses, from a critical point of view, issues such as goals in water reuse and influence on water demands, ecological analysis of the cycle of the main pollutants, health aspects and treatment requirements, energy consumption and measurable environmental benefits, in order to provide a set of criteria to assess sustainability in water recycling projects and to decrease the impact of the cultural water cycle on the environment.
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Wati, Satiya, Bret S. Robinson, John Mieog, Judy Blackbeard, and Alexandra R. Keegan. "Chlorine inactivation of coxsackievirus B5 in recycled water destined for non-potable reuse." Journal of Water and Health 17, no. 1 (September 25, 2018): 124–36. http://dx.doi.org/10.2166/wh.2018.393.
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Abstract Currently guidelines for disinfection of water with free chlorine, while primarily developed for potable water, are often used for virus disinfection of nitrified recycled water of >1 NTU (Nephelometric Turbidity Unit). More information is needed on the disinfection efficacy of free chlorine for viruses in waters of varying turbidity and pH due to significant reuse of treated wastewater of varying quality. In this study, disinfection efficacy in nitrified/denitrified activated sludge treated wastewater was investigated for coxsackievirus B5 (CB5), an enterovirus known to be highly resistant to free chlorine. The required chlorine contact times (CT) values (mg.min/L) for inactivation of CB5 were established in treated wastewater at 10 °C and of varying turbidity (0.2, 2, 5 and 20 NTU) and pH (7, 8 and 9). CTs were calculated to achieve 1 to 4 log10 inactivation. Robust data is presented in support of the chlorine CT values required to inactivate a chlorine-resistant virus in a range of turbidities and pHs in treated wastewaters. The testing method used a conservative approach and the data presented have been used to develop the free chlorine virus inactivation guildelines for recycled water in Victoria and South Australia, Australia.
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Strauss, Martin. "Human Waste Use: Health Protection Practices and Scheme Monitoring." Water Science and Technology 24, no. 9 (November 1, 1991): 67–79. http://dx.doi.org/10.2166/wst.1991.0236.
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The first part of the paper provides a short and non-exhaustive overview of human waste use practices in agriculture and aquaculture mainly in the southern hemisphere. In the second part, institutional settings as well as regulations, strategies and practices of health protection in selected reuse schemes are presented and discussed. The promulgation of new guidelines for health protection in human waste use in the late eighties has led authorities in a number of countries to formulate new or amended national guidelines and to devise the monitoring and control of wastewater treatment and reuse schemes. The third part deals with these aspects and the author presents monitoring schedules for treated wastewater irrigation schemes.
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Bakare, B. F., S. Mtsweni, and S. Rathilal. "A pilot study into public attitudes and perceptions towards greywater reuse in a low cost housing development in Durban, South Africa." Journal of Water Reuse and Desalination 6, no. 2 (October 21, 2015): 345–54. http://dx.doi.org/10.2166/wrd.2015.076.
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The benefits of greywater reuse have been identified to include the protection of water resources, recovery of nutrients for agriculture, savings in fresh water usage, reduction in volumes of wastewater discharged into wastewater treatment works, groundwater recharge and sustainable water resource management. An understanding of public attitude and perceptions towards the reuse of greywater will help to facilitate a positive reaction to the promotion of such concepts. The study involved administering of structured questionnaires to residents within the community through field visits. The questionnaire addressed issues related to attitudes towards the reuse of greywater, perceived advantages related to the reuse of greywater and concerns related to public health issues regarding the reuse of greywater. A total number of 346 questionnaires were administered and respondents were aged from less than 19 to over 60 years. Of the respondents, 55% were female and 45% male. The findings revealed a complex and shifting relationship between attitudes towards and perception of the reuse of greywater. This paper thus presents the findings and assesses certain aspects of greywater reuse.
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Anda, M., K. Mathew, and G. Ho. "Evapotranspiration for domestic wastewater reuse in remote indigenous communities of Australia." Water Science and Technology 44, no. 6 (September 1, 2001): 1–10. http://dx.doi.org/10.2166/wst.2001.0327.
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In the past sewage ponding in indigenous settlements was commonplace as a result of overcrowding combined with inappropriate septic tank and leach drain design, installation and operation. The response over the past 10 years has been to develop reticulated sewerage systems to lagoons when the funds become available. These are often successful in terms of operation, improved public health and low maintenance but are expensive and wasteful of limited water supplies. Evapotranspiration (ET) is an effective method for on-site domestic effluent disposal in areas of Western Australia with soils of low permeability. Evapotranspiration systems have been established in a number of communities both for research/demonstration and as specified by architects. The systems usually follow two septic tanks for the disposal of all domestic effluent. A case study will be presented for a remote indigenous community where the ET systems installed for greywater only have been monitored over the last two years since installation. The use of evapotranspiration has enabled reuse of effluent for successful examples of revegetation and food production and points to the need for a holistic approach to design and service delivery in these communities that includes a total environmental management plan.
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Oron, Gideon. "Management modeling of integrative wastewater treatment and reuse systems." Water Science and Technology 33, no. 10-11 (May 1, 1996): 95–105. http://dx.doi.org/10.2166/wst.1996.0666.
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An integrative approach for wastewater treatment and reuse projects is exemplified. The approach is based on management modeling for optimal wastewater treatment, disposal and reuse. Management modeling takes into account regional and national aspects. These considerations include treatment levels and control, water supply and demand, transportation and storage requirements, technical capabilities and social issues. Attention is also given to environmental pollution and health risks aspects and purpose of wastewater application. The model is based on defining an objective (cost) function to be optimized. The optimum of the objective function is evaluated subject to a series of technological, social, health and environmental constraints. The results provide information regarding the system layout and related optimal investment and operational expenses.
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Tselentis, Yiannis, and Stella Alexopoulou. "Effluent reuse options in Athens metropolitan area: A case study." Water Science and Technology 33, no. 10-11 (May 1, 1996): 127–38. http://dx.doi.org/10.2166/wst.1996.0669.
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In the Athens Metropolitan area nearly 700,000 m3 of effluent is produced per day which after its primary treatment is being discharged into the sea. A serious concern has been expressed by local municipalities and the government on wasting a valuable potential resource. An integrated approach has been selected, which takes into account the water resources management aspects, the growing population and the increasing demand for improving the environmental standards in the greater Athens area. The methodology developed includes: the geographical distribution of prospective users, the quantities required and the availability and cost of the existing sources, the quality standards required and the treatment needed per use, the associated public health and environmental hazards, the institutional and political aspects, the monitoring and control requirements, the social awareness and the need for education and public acceptance for effluent reuse. The various uses examined include: crop irrigation, irrigation of afforestated areas, industrial water supply and domestic non potable use. Twelve different reuse schemes were evaluated. The conclusions are of great interest, since the quantities of the available effluent are enormous and allow the development of an overall reuse strategy for a typical Mediterranean metropolitan area like Athens.
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Shoushtarian, Farshid, and Masoud Negahban-Azar. "Worldwide Regulations and Guidelines for Agricultural Water Reuse: A Critical Review." Water 12, no. 4 (March 29, 2020): 971. http://dx.doi.org/10.3390/w12040971.
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Water reuse is gaining momentum as a beneficial practice to address the water crisis, especially in the agricultural sector as the largest water consumer worldwide. With recent advancements in wastewater treatment technologies, it is possible to produce almost any water quality. However, the main human and environmental concerns are still to determine what constituents must be removed and to what extent. The main objectives of this study were to compile, evaluate, and compare the current agricultural water reuse regulations and guidelines worldwide, and identify the gaps. In total, 70 regulations and guidelines, including Environmental Protection Agency (EPA), International Organization for Standardization (ISO), Food and Agriculture Organization of the United Nations (FAO), World Health Organization (WHO), the United States (state by state), European Commission, Canada (all provinces), Australia, Mexico, Iran, Egypt, Tunisia, Jordan, Palestine, Oman, China, Kuwait, Israel, Saudi Arabia, France, Cyprus, Spain, Greece, Portugal, and Italy were investigated in this study. These regulations and guidelines were examined to compile a comprehensive database, including all of the water quality monitoring parameters, and necessary treatment processes. In summary, results showed that the regulations and guidelines are mainly human-health centered, insufficient regarding some of the potentially dangerous pollutants such as emerging constituents, and with large discrepancies when compared with each other. In addition, some of the important water quality parameters such as some of the pathogens, heavy metals, and salinity are only included in a small group of regulations and guidelines investigated in this study. Finally, specific treatment processes have been only mentioned in some of the regulations and guidelines, and with high levels of discrepancy.
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Ganoulis, J. "Evaluating alternative strategies for wastewater recycling and reuse in the Mediterranean area." Water Supply 3, no. 4 (August 1, 2003): 11–19. http://dx.doi.org/10.2166/ws.2003.0042.
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The concept of sustainability in wastewater reclamation and reuse in the Mediterranean area needs to be expressed in a realistic and practical way. This paper suggests a suitable methodology for sustainable wastewater reuse in the Mediterranean area by considering not only technical and economic, but also, environmental and social aspects of wastewater reuse. Alternative strategies based on different treatment and storage technologies are evaluated by using the Multicriterion Decision Analysis (MCDA) method. Alternative strategies are formulated by combining elements such as different treatments, different disposal sites, the type of irrigation scheme, crop pattern, water pricing and the use of fertilizers. The criteria used to evaluate the most sustainable strategy include firstly public health and environmental factors, that pose risks on human health, water pollution during and after irrigation, efficiency of water use, secondly economic factors, including the water cost, the initial cost of the irrigation system, maintenance costs and crop profitability, and thirdly social issues including the employment of rural labour. Various MCDA techniques, namely, ELECTRE-3, ELECTRE-4 and Compromise Programming (CP) may be employed to rank alternative strategies and find out the most sustainable alternative.
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Bridle, T. R., and S. Skrypski-Mantele. "Experience and lessons learned from sewage sludge pyrolysis in Australia." Water Science and Technology 49, no. 10 (May 1, 2004): 217–23. http://dx.doi.org/10.2166/wst.2004.0648.
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Management of sewage sludge via “publicly acceptable” methods is becoming increasingly difficult, primarily due to health and environmental concerns with respect to reuse of the product in agriculture. Consequently thermal processes are gaining popularity with significantly increased interest being shown in pyrolysis and gasification processes, due to their “non-incineration status”. One such process is the ENERSLUDGE™ technology which has been developed and commercialised by Environmental Solutions International Ltd (ESI). The world's first commercial ENERSLUDGE™ plant is located at the Subiaco Wastewater Treatment Plant (WWTP) that was handed over to the client, the Water Corporation of Western Australia in June 2001. Extensive design knowledge and operational experience has now been accumulated from this commercial pyrolysis facility and future applications of the technology will benefit immensely from the lessons learned and experience gained from this facility.
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Isaac, Ricardo, Vivien Viaro, Camila Fonseca, and Alana Mânica. "Identification of Key Factors for Urban—Industrial Water Reuse: A Multi-Criteria Analysis Case Study." Water 14, no. 8 (April 18, 2022): 1314. http://dx.doi.org/10.3390/w14081314.
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The industrial reuse of existing municipal wastewater treatment plant (WWTP) effluent can play a major role in improving water security in urbanized regions facing scarcity. As the complexity of engineered direct water reuse is related to various economic, technical, legal, social, environmental, and public health aspects, multi-criteria analysis (MCA) is a feasible decision-making tool in this context. The present work aimed to establish the relevant key factors for the application of MCA, wherever plant planning, design, and construction did not previously consider reuse practices. The adopted methodology considers the proposition and valuation of key criteria, based on the existing literature, expert consultations, statistical analysis, and the application of MCA to a real municipal WWTP located in Campinas city (São Paulo State, Brazil). The 13 proposed criteria encompass multiple categories, and their relevance is demonstrated, given the high significance frequencies assigned. The best values are related to effluent quality, health risks, and treatment reliability, in addition to environmental costs and benefits. The application of those criteria in Cooperative Game Theory (CGT) and Compromise Programming (CP) methods is proved to be suitable, considering the characteristics of the studied area (i.e., highly urbanized with a history of water scarcity). Among nine surveyed end-users, the first position in the hierarchy corresponds to the largest industries with the shortest distance from the WWTP.
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Starkl, M., P. Amerasinghe, L. Essl, M. Jampani, D. Kumar, and S. R. Asolekar. "Potential of natural treatment technologies for wastewater management in India." Journal of Water, Sanitation and Hygiene for Development 3, no. 4 (June 10, 2013): 500–511. http://dx.doi.org/10.2166/washdev.2013.016.
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High population growth, increasing urbanization and rapid economic development are exerting pressure on the already scarce water resources in India. Treatment and reuse of wastewater can play an important role in addressing some of the urban water challenges. Conventional treatment plants have many challenges, therefore, natural treatment systems (NTSs) are viewed as a cost-effective alternative, which are more suitable in the Indian context. This study builds on a desktop study of NTSs and presents a rapid sustainability assessment of 12 NTSs, highlighting the potential and viability of NTSs in India. The results show that the NTSs have a high potential for wastewater treatment. However, there are still gaps in knowledge related to aspects that hinder the sustainability of the systems. Risks associated with reuse of treated wastewater in agriculture, operational problems and social acceptance were perceived as frequent challenges. Self-sustaining financing methods and the use of by-products were viewed as added benefits.
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Helmer, R., I. Hespanhol, and L. J. Saliba. "Public Health Criteria for the Aquatic Environment: Recent WHO Guidelines and Their Application." Water Science and Technology 24, no. 2 (July 1, 1991): 35–42. http://dx.doi.org/10.2166/wst.1991.0026.
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Over the past Decade, the World Health Organization has developed a series of microbiological guidelines covering different aspects of the aquatic environment. Transmission pathways of human pathogens from their faecal origin back to man via drinking-water, bathing waters, shellfish and sewage-irrigated crops were investigated and epidemiology-based health criteria established. The total and faecal coliform guideline values for drinking-water are generally complied with in urban water supplies but difficult to meet in rural areas of developing countries. The Mediterranean serves as the major study area for assessing health risks from bathing in coastal waters and from the consumption of shellfish eaten uncooked. Wastewater reuse for crop irrigation is rapidly expanding due to water shortages but poses health risks to farm workers and consumers. New guidelines for control of helminths were recently issued by a WHO Scientific Group. A comparative evaluation of the above guidelines follows.
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Noor, T., and Entkhab M. A. Alanisi. "Critical Assessment of Treated Wastewater and Their Reuse for Irrigation in Iraq." South Asian Research Journal of Biology and Applied Biosciences 4, no. 2 (June 12, 2022): 50–62. http://dx.doi.org/10.36346/sarjbab.2022.v04i02.003.
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Rustumihia is one of the biggest WWTP (Waste Water Treatment Plant) based in Baghdad the capital of Iraq. The effluent treated wastewater, were used for irrigation by the farmers nearby the Rustumihia WWTP. The growth of Iraqi population and limited development in the infrastructure to the treatment plants in Iraq like old Rustumihia project. There is a need to assess the treated effluents water that is used for irrigation. Wastewater considered as a key alternative water resource as it can be used in agriculture field to reimburse shortages in water need. In developed countries like Iraq, the irrigation by using wastewater has a long history. Continues lagging in WWTP maintenance and its infrastructure could cause many problems for the treated effluent that has its own effect on health and environment aspects. Therefore, by applying a strong management practices, for example advanced and appropriate treated and irrigated knowledge, can be used later to gain significant advantages in the same time minimizing health risks. This article discussed the treated wastewater used by farmers nearby Rustumihia treatment plant and focus on the challenges linked with wastewater irrigation.
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Mukherjee, Maitreyee, and Olivia Jensen. "Making water reuse safe: A comparative analysis of the development of regulation and technology uptake in the US and Australia." Safety Science 121 (January 2020): 5–14. http://dx.doi.org/10.1016/j.ssci.2019.08.039.
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Bischoff, A., J. H. Fan, P. Cornel, M. Wagner, and L. M. Ma. "Disinfection of treated wastewater as an essential purification step for safe urban reuse: a comparative pilot study of UV- and ClO2-disinfection systems for urban reuse applications in China." Journal of Water Reuse and Desalination 3, no. 3 (March 7, 2013): 325–35. http://dx.doi.org/10.2166/wrd.2013.087.
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Disinfection of wastewater is vital in addressing the potential health risks of urban water reuse. To compare the applicability of wastewater disinfection methods other than chlorine, identical pilot plants that used ultraviolet (UV) irradiation and chlorine dioxide (ClO2) dosing were installed at municipal wastewater treatment plants in Shanghai, China and Darmstadt, Germany. The investigation included public health and environmental aspects associated with the two disinfection methods. The results of the pilot-scale studies suggest that, in order to comply with Chinese water quality standards for urban water reuse, it is advisable to have a tertiary treatment before wastewater disinfection. Both methods were able to achieve a 4 log10 reduction in both total coliforms and Escherichia coli (E. coli). There was no evidence for regrowth of E. coli. However, after an initial 3 log10 reduction, HPC increased within 48 h by more than 10-fold after UV irradiation as well as after low doses of ClO2. An increase in acute toxicity was detected after dosing with ClO2 but not after UV irradiation.
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Shakeri, Hossein, and Sara Nazif. "Development of an algorithm for risk-based management of wastewater reuse alternatives." Journal of Water Reuse and Desalination 8, no. 1 (December 7, 2016): 38–57. http://dx.doi.org/10.2166/wrd.2016.168.
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Abstract Due to water resources limitations, special attention has been paid to wastewater reuse in recent years. The risks associated with wastewater reuse alternatives should be considered in decision-making. Even when selecting the alternative with the least risk, risk management issues are of high importance. This study aims to develop an algorithm for risk-based management of wastewater reuse alternatives. This algorithm uses a three-step risk assessment and management approach. Risks are identified, then risks of alternatives are assessed, and, finally, risk management measures are proposed for risk reduction in the selected alternative. In risk identification, economic, social, health, and environmental aspects are taken into account. In risk assessment, its three components of likelihood, severity, and vulnerability are considered through a fuzzy inference system. Alternatives are prioritized based on calculated risks using a fuzzy VIKOR method. A case study is presented in which the proposed algorithm is used to select the best alternative for reuse of treated wastewater from Ekbatan Town, located in the western part Tehran in Iran. The results showed that the proposed approach provides the users with an easier understanding of risks and increases the relative confidence of decision-makers about the selection of the best alternatives for wastewater reuse and their risk control methods.
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Davies, C. M., S. M. Petterson, C. Kaucner, N. J. Ashbolt, V. G. Mitchell, G. D. Taylor, and J. Lewis. "Microbial challenge-testing of treatment processes for quantifying stormwater recycling risks and management." Water Science and Technology 57, no. 6 (March 1, 2008): 843–47. http://dx.doi.org/10.2166/wst.2008.194.
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Pathogenic microorganisms have been identified as the main human health risks associated with the reuse of treated urban stormwater (runoff from paved and unpaved urban areas). As part of the Smart Water initiative (Victorian Government, Australia), a collaborative evaluation of three existing integrated stormwater recycling systems, and the risks involved in non-potable reuse of treated urban stormwater is being undertaken. Three stormwater recycling systems were selected at urban locations to provide a range of barriers including biofiltration, storage tanks, UV disinfection, a constructed wetland, and retention ponds. Recycled water from each of the systems is used for open space irrigation. In order to adequately undertake exposure assessments, it was necessary to quantify the efficacy of key barriers in each exposure pathway. Given that none of the selected treatment systems had previously been evaluated for their treatment efficiency, experimental work was carried out comprising dry and wet weather monitoring of each system (for a period of 12 months), as well as challenging the barriers with model microbes (for viruses, bacteria and parasitic protozoa) to provide input data for use in Quantitative Microbial Risk Assessment.
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Diaper, C., and A. Sharma. "Innovative sewerage solutions for small rural towns." Water Science and Technology 56, no. 5 (September 1, 2007): 97–103. http://dx.doi.org/10.2166/wst.2007.561.
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The development and implementation of alternative wastewater servicing approaches in rural communities in Australia appears more feasible than in larger urban developments as many rural centres rely on septic tanks and surface discharge of greywater. This method of disposal creates many environmental, social and economic issues and is seen to limit potential for growth in many towns. This paper describes a generic methodology for the selection of innovative sewerage options for six regional towns in Victoria, Australia. The method includes consultation with stakeholders, multi-criteria assessment and concept design of the most favourable option. Despite the broad range of initial wastewater servicing options presented which included cluster-scale systems, upgrade of existing systems, greywater reuse and alternative collection, the outcome for five of the six towns was a modified centralised collection system as the preferred option. Lack of robust and reliable data on the human health risks and environmental impacts of alternative systems were identified as the primary data gaps in the sustainability assessment. In addition, biases in the assessment method due to stakeholder perceptions were found to be an additional issue.
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Sharma, A. K., G. Tjandraatmadja, A. L. Grant, T. Grant, and F. Pamminger. "Sustainable sewerage servicing options for peri-urban areas with failing septic systems." Water Science and Technology 62, no. 3 (August 1, 2010): 570–85. http://dx.doi.org/10.2166/wst.2010.205.
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The provision of water and wastewater services to peri-urban areas faces very different challenges to providing services to cities. Sustainable solutions for such areas are increasingly being sought, in order to solve the environmental and health risks posed by failing septic systems. These solutions should have the capability to reduce potable water demand, provide fit for purpose reuse options, and minimise impacts on the local and global environment. A methodology for the selection of sustainable sewerage servicing systems and technologies is presented in this paper. This paper describes the outcomes of applying this methodology to a case study in rural community near Melbourne, Australia, and describes the economic and environmental implications of various sewerage servicing options. Applying this methodology has found that it is possible to deliver environmental improvements at a lower community cost, by choosing servicing configurations not historically used by urban water utilities. The selected solution is currently being implemented, with the aim being to generate further transferable learnings for the water industry.
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O'Connor, Nicholas A., Aravind Surapaneni, David Smith, and Daryl Stevens. "Occurrence and fate of Ascaris lumbricoides ova in biosolids in Victoria, Australia: a human health risk assessment of biosolids storage periods." Water Science and Technology 76, no. 6 (May 26, 2017): 1332–46. http://dx.doi.org/10.2166/wst.2017.222.
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Reuse of sewage biosolids in Victoria, Australia, typically involves mesophilic anaerobic digestion followed by air-drying and long-term storage to ensure removal of ova of soil-transmitted helminths (STH) such as Ascaris lumbricoides. Long-term storage degrades the biosolids' agronomic quality due to the loss of key plant nutrients and takes up large areas of storage space. The impact of varying biosolids holding times and other processes on STH using Ascaris as the reference STH pathogen was examined in this study using a quantitative risk analysis approach. Risk modelling of the potential human health impacts from the presence of Ascaris ova in biosolids was undertaken for discrete holding periods of 1, 2 and 3 years. Modelling showed that to meet the WHO 1 μDALY·person−1·year−1 disease burdens guideline for limiting exposure category, a biosolids storage period of 1.24 years or 2.1 years would be required, depending on the data source of ova shedding rates per worm (Bangladesh or Nigeria, respectively). The soil exposure and salad/root vegetable consumption models included a number of variables with moderate to high degrees of uncertainty. Monte Carlo simulation was used to assess the effect of uncertainty in model input variables and to assist in highlighting areas for further research.
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Schwecke, M. A., and B. Simmons. "The use of alternative water sources on urban playing fields: are they acceptable from a community stance?" Water Supply 8, no. 6 (December 1, 2008): 603–9. http://dx.doi.org/10.2166/ws.2008.111.
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Many cities in Australia are experiencing the effects of the current drought. This drought has illustrated the unsustainable nature of the Australian community's water consumption patterns. In order to change this unsustainable water consumption the community needs to be aware of and encouraged to make use of alternative water sources. This paper draws upon a series of community questionnaires conducted with people who live adjacent to playing fields and golf courses within the Manly Local Government Area, inside the Sydney Metropolitan Area. The questionnaires explored the communities’ attitudes towards and awareness of the use of alternative water sources on public and private recreational land. Using results from the questionnaires this paper outlines the community's attitudes towards the necessity to use alternative water sources. It also examines the need the community has to be assured that this water does not present a hazard to public health or the environment. Through development of an understanding of community attitudes and awareness, local government and relevant authorities can implement water reuse projects with support from the community.
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Müller, K., P. Cornel, and A. Nashilongo. "Utilization rates, water demand and wastewater characteristics of a shared sanitation facility in North Namibia." Journal of Water, Sanitation and Hygiene for Development 6, no. 3 (August 19, 2016): 482–90. http://dx.doi.org/10.2166/washdev.2016.176.
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Shared sanitation facilities are often the only feasible option for sanitation provision in informal settlements. When implementing infrastructure for wastewater collection and treatment, information regarding quantities and constituent loadings is required. Up to now, such data are not available for shared sanitation. In order to provide this information, this study focuses on wastewater characteristics of a shared sanitation facility in North Namibia. The input data used for planning are compared with monitoring data. This includes utilization rates, water demand, loads and concentrations of total chemical oxygen demand, total nitrogen, total phosphorus and total dissolved solids. During the survey period, two different tariff levels were tested. Their effect on utilization rates and water demand is outlined. The results obtained from this study are particularly valuable for better planning of shared sanitation facilities, and subsequent wastewater transport, treatment and reuse infrastructures. Future studies should include further aspects and influencing factors such as population density, available income, or the influence of competing facilities.
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Lazarova, V., and Ph Savoye. "Technical and sanitary aspects of wastewater disinfection by UV irradiation for landscape irrigation." Water Science and Technology 50, no. 2 (July 1, 2004): 203–9. http://dx.doi.org/10.2166/wst.2004.0125.
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Water reuse for landscape irrigation requires the production of high quality virus-free effluents to minimize risk for human health. In order to establish the relevance of MS2 phages as an appropriate biodosimeter for UV design, a pilot plant study has been carried out with different types of wastewater effluents. The two pilot systems tested (low-pressure high output and medium-pressure UV units) were able to achieve 4 and 5 log MS2 reduction in tertiary filtered effluent at high calculated UV doses of 170 _ 10 and 300 mJ/cm2, respectively. UV disinfection was extremely efficient for MS2 inactivation in high quality effluents after reverse osmosis: detention times as low as one second and UV dose of 40 mJ/cm2 were sufficient to reach 5 log inactivation of MS2. UV irradiation also produced rapid inactivation of human pathogens such as poliovirus type 1 and indigenous enteroviruses at UV doses up to 3 times lower that those for MS2 disinfection. It was concluded that accurate UV unit design for a given type of wastewater could be ensured by pilot tests using laboratory-propagated MS2 as biodosimeter and collimated-beam tests as the calibration-check.
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Oron, G., A. Bick, L. Gillerman, and Y. Manor. "Hybrid membrane systems for secondary effluent polishing for unrestricted reuse for agricultural irrigation." Water Science and Technology 50, no. 6 (September 1, 2004): 305–12. http://dx.doi.org/10.2166/wst.2004.0389.
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Field experiments are in progress for secondary wastewater upgrading for unrestricted utilization for agricultural irrigation. The integrative approach of secondary effluent polishing is based on using a hybrid UltraFiltration (UF) and Reverse Osmosis (RO) membrane pilot system with a capacity of around 1 m3/hr. The UF effluent is used to feed the RO membranes. The RO permeate is subsequently applied for vegetable irrigation. Field results indicate the importance of the UF component in the removal of the organic matter and the pathogens that are still contained in the secondary effluent. Under specific conditions, when the dissolved solids content is relatively low, regarding sanitary and health aspects, the UF effluent can be applied for unrestricted irrigation. During the RO stage most nutrients are removed, allowing application of the effluent without jeopardizing the soil fertility and the aquifers. Preliminary economic assessment indicates that the extra cost for effluent polishing via the UF stage only is in the range of 5 to 15 US cents/m3. The extra cost for the RO stage is also assessed at 10 to 25 US cents/m3. The additional cost depends to a large extent on the quality of the incoming raw secondary effluent and local requirements of the command region.
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Schrale, G., R. Boardman, and M. J. Blaskett. "Investigating Land Based Disposal of Bolivar Reclaimed Water, South Australia." Water Science and Technology 27, no. 1 (January 1, 1993): 87–96. http://dx.doi.org/10.2166/wst.1993.0022.
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The Bolivar Sewage Treatment Works (STW) processes the urban and industrial sewage from the northern and eastern suburbs of Adelaide. The treatment capacity is equivalent to the sewage production of 1.1 million people. The disposal of more than 40 000 ML of reclaimed water into the sea has caused a progressive degradation of about 950 ha of seagrass beds which threatens the sustainability of the fisheries and marine ecosystems of Gulf St. Vincent. The current practice will no longer be viable to achieve compliance with the SA Marine Environment Protection Act, 1990. A Inter-Departmental Working Party recommmended that the Bolivar reclaimed water be disposed by irrigation of suitable land on the coastal plains north of Adelaide. They proposed the construction of two pipelines: a 12 km long pipeline to extend the distribution of reclaimed water in the most intense portion of the 3 500 hectares of irrigated horticulture on the Northern Adelaide Plains, and a second, 18 km long pipeline to deliver the remainder to a more northerly site for irrigation of an estimated 4 000 hectares of hardwood plantations. The paper summarizes the findings as they relate to public health, environmental, technical and financial aspects of land based disposal. Land based disposal would completely eliminate the marine degradation and also arrest the over-use of the NAP underground water resources for horticulture. The total net costs over thirty years for land based disposal are about $ 21.8 million. The ‘horticultural' pipeline of the land based disposal scheme is expected to be commercially viable. A shortfall in revenue from the afforestation component is expected and may need to be considered as an environmental cost of ceasing marine disposal.
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Arden, Sam, Ben Morelli, Mary Schoen, Sarah Cashman, Michael Jahne, Xin (Cissy) Ma, and Jay Garland. "Human Health, Economic and Environmental Assessment of Onsite Non-Potable Water Reuse Systems for a Large, Mixed-Use Urban Building." Sustainability 12, no. 13 (July 7, 2020): 5459. http://dx.doi.org/10.3390/su12135459.
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Onsite non-potable reuse (NPR) is being increasingly considered as a viable option to address water scarcity and infrastructure challenges, particularly at the building scale. However, there are a range of possible treatment technologies, source water options, and treatment system sizes, each with its unique costs and benefits. While demonstration projects are proving that these systems can be technologically feasible and protective of public health, little guidance exists for identifying systems that balance public health protection with environmental and economic performance. This study uses quantitative microbial risk assessment, life cycle assessment and life cycle cost analysis to characterize the human health, environmental and economic aspects of onsite NPR systems. Treatment trains for both mixed wastewater and source-separated graywater were modeled using a core biological process—an aerobic membrane bioreactor (AeMBR), an anaerobic membrane bioreactor (AnMBR) or recirculating vertical flow wetland (RVFW)—and additional treatment and disinfection unit processes sufficient to meet current health-based NPR guidelines. Results show that the graywater AeMBR system designed to provide 100% of onsite non-potable demand results in the lowest impacts across most environmental and human health metrics considered but costs more than the mixed-wastewater version due to the need for a separate collection system. The use of multiple metrics also allows for identification of weaknesses in systems that lead to burden shifting. For example, although the RVFW process requires less energy than the AeMBR process, the RVFW system is more environmentally impactful and costly when considering the additional unit processes required to protect human health. Similarly, we show that incorporation of thermal recovery units to reduce hot water energy consumption can offset some environmental impacts but result in increases to others, including cumulative energy demand. Results demonstrate the need for additional data on the pathogen treatment performance of NPR systems to inform NPR health guidance.
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Dillon, P., S. Toze, D. Page, J. Vanderzalm, E. Bekele, J. Sidhu, and S. Rinck-Pfeiffer. "Managed aquifer recharge: rediscovering nature as a leading edge technology." Water Science and Technology 62, no. 10 (November 1, 2010): 2338–45. http://dx.doi.org/10.2166/wst.2010.444.
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Use of Managed Aquifer Recharge (MAR) has rapidly increased in Australia, USA, and Europe in recent years as an efficient means of recycling stormwater or treated sewage effluent for non-potable and indirect potable reuse in urban and rural areas. Yet aquifers have been relied on knowingly for water storage and unwittingly for water treatment for millennia. Hence if ‘leading edge’ is defined as ‘the foremost part of a trend; a vanguard’, it would be misleading to claim managed aquifer recharge as a leading edge technology. However it has taken a significant investment in scientific research in recent years to demonstrate the effectiveness of aquifers as sustainable treatment systems to enable managed aquifer recharge to be recognised along side engineered treatment systems in water recycling. It is a ‘cross-over’ technology that is applicable to water and wastewater treatment and makes use of passive low energy processes to spectacularly reduce the energy requirements for water supply. It is robust within limits, has low cost, is suitable from village to city scale supplies, and offers as yet almost untapped opportunities for producing safe drinking water supplies where they do not yet exist. It will have an increasingly valued role in securing water supplies to sustain cities affected by climate change and population growth. However it is not a universal panacea and relies on the presence of suitable aquifers and sources of water together with effective governance to ensure human health and environment protection and water resources planning and management. This paper describes managed aquifer recharge, illustrates its use in Australia, outlining economics, guidelines and policies, and presents some of the knowledge about aquifer treatment processes that are revealing the latent value of aquifers as urban water infrastructure and provide a driver to improving our understanding of urban hydrogeology.
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Howard, N. H. "Recreational Use Considerations of the Sugarloaf Reservoir (Melbourne, Australia)." Water Science and Technology 21, no. 2 (February 1, 1989): 251–54. http://dx.doi.org/10.2166/wst.1989.0059.
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Sugarloaf Reservoir, one of Melbourne's newer storages, draws an increasing proportion of its water from the unprotected and polluted lower Yarra requiring all supply to be comprehensively treated before being supplied to consumers. Because of this special situation, compared to harvesting from protected catchments, a recreational use study of the reservoir and its small natural catchment was initiated. The first phase of this study was undertaken by Dr J Forsyth of the Microbiological Diagnostic Unit, University of Melbourne which recommended that, from the public health point of view, the present nominal recreational use (passive) at Sugarloaf Reservoir could be extended to include shore based fishing, establishment of a catchment nature trail, sailing, rowing, youth club and model yacht sailing. A Phase 2 study reported on the financial, managerial aspects, etc, not addressed by Dr Forsyth, while the “implementation stage” is being currently considered in a third phase. A report on this last phase is to be submitted to the Board and Minister for Water Resources for consideration for the summer of 1988.
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Fernández Escalante, Enrique Fernández, José David Henao Henao Casas, Jon San Sebastián San Sebastián Sauto, and Rodrigo Calero Calero Gil. "Monitored and Intentional Recharge (MIR): A Model for Managed Aquifer Recharge (MAR) Guideline and Regulation Formulation." Water 14, no. 21 (October 27, 2022): 3405. http://dx.doi.org/10.3390/w14213405.
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Guidelines and regulatory frameworks for conducting managed aquifer recharge (MAR) are scarce worldwide compared to the countries where MAR projects operate. At the same time, guidelines and regulations are crucial to implementing MAR activities safely, respecting human health and the environment, and guaranteeing the sustainability of the intentional recharge. The present study aims to provide a conceptual model comprising the minimum elements to consider when drafting guiding and normative MAR documents. To this end, aspects discussed in nine guidelines were evaluated through a score that allowed their significance to be assessed. The authors also reviewed 22 regulations, guidelines, or MAR site operation rules to construct the monitored and intentional recharge (MIR) conceptual model. This effort was enhanced by active participation in the real drafting of two national regulating documents for MAR. The evaluation of aspects in the documents showed the importance of water reuse and risk and impact assessment. The MIR conceptual model comprises nine blocks that summarize the most important aspects to consider. This conceptual model, which guides MAR regulations in two countries, has great potential for application in different sites under diverse contexts.
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Agus, Cahyono, Pita Asih Bekti Cahyanti, Bambang Suhartanto, and Pipit Noviyani. "Organic Waste Management and Integrated Bio-Cycle Farming System for Sustainable Development in Tropical Ecosystem." Applied Mechanics and Materials 898 (May 2020): 45–50. http://dx.doi.org/10.4028/www.scientific.net/amm.898.45.
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The tropical ecosystem had high biomass productivity but still less in economic values. Integrated Bio-cycle Farming System (IBFS) was an alternative system that harmoniously combines agricultural sectors (agriculture, forestry, animal husbandry, fishery, plantation estate, horticulture) and non-agricultural aspects (industry, household, infrastructure, the marketplace) on integrated ecological management. The key characteristics of IBFS developed in UGM University Farm were (i) an integration of agriculture and non-agriculture sector, (ii) value of environment, esthetics and economics, (iii) rotation and diversity of plants, (iv) artificial and functional biotechnology, (v) management of closed organic cycle, (vi) ecosystem health management, (vii) agropolitan concept, (viii) specific management of plant and (ix) holistic and integrated system. The management of cycle of energy, organic matter and carbon, water, nutrient, production, crop, money conducted through 9R (reuse, reduce, recycle, refill, replace, repair, replant, rebuild, reward) to obtain optimal benefits for global environment and livelihood. The system had a sustainable multifunction and multi-product (food, feed, fuel, fiber, fertilizer, biopharma, water, energy, oxygen, edutainment, eco-tourism). They would meet the expected basic need for daily-, monthly-, yearly- and decade’s income at short-, medium- and long- term periods. IBFS was a good prospect for sustainable economic, environmental, and socio-culture aspects.
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Gupta, Rakesh, Kejia Yan, Tarlok Singh, and Di Mo. "Domestic and International Drivers of the Demand for Water Resources in the Context of Water Scarcity: A Cross-Country Study." Journal of Risk and Financial Management 13, no. 11 (October 29, 2020): 255. http://dx.doi.org/10.3390/jrfm13110255.
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Global warming, while increasing human demand for water, is reducing water availability by reducing runoff flows and the effective amount of water between seasons, making water scarcity a growing problem globally. Water management plays an important role in mitigating global warming, improving the water cycle, reducing carbon emissions, and providing clean energy, and pricing water is considered a good approach to water management. Pricing water needs to take into account all sectors and aspects of society, such as domestic water, food and agriculture, energy, transport, industry, urban provision, human health, ecosystems, and the environment, and their interrelationships through water, within the context of the fundamental human rights to water and sanitation. This requires that every stakeholder should contribute to the development of water-related policies at every stage of the water interrelationship. This study investigated the relationship between water demand across different sectors of the economy using indicators for China, Australia, Japan, and the UK. Using panel analyses, this study finds that economic growth and population expansion increases the demand for water in all aspects. These findings have significant policy implications for water management. Because water prices can have an impact on global trade and, more importantly, are a major solution to global warming, water management policies should be considered at the global level, not only at the national level.
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El-Mowelhi, N. M., S. M. S. Abo Soliman, S. M. Barbary, and M. I. El-Shahawy. "Agronomic aspects and environmental impact of reusing marginal water in irrigation: a case study from Egypt." Water Science and Technology 53, no. 9 (April 1, 2006): 229–37. http://dx.doi.org/10.2166/wst.2006.275.
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Egypt produces approximately 2.4 million m3 of secondary treated wastewater (TWW) annually, used for irrigation directly or indirectly by blending with agricultural drainage water (BDW). The annual re-use of (BDW) is approximately 4 million m3. The safe and efficient use of marginal water (BDW and TWW) is a core objective of this study which has been operating from 1997 to date. After six growing seasons the main results can be summarized as follows: Maximizing crop production: TWW can be used for high production of oil crops (canola, soybean sunflower or maize) compared to fresh water, while BDW can be used for high production of tolerant crops (cotton and sugar beet). Crop quality: using marginal water increases the concentration of elements (Pb, B, Ni, Co) in all crops but these elements were under critical levels (there were no toxicity hazards). It is better to use alternative irrigation with fresh water under a drip irrigation system to maximise crop production and minimise the adverse effects of such water in field crops quality. Soil pollution and salinity build up: A drip irrigation system under alternative irrigation by fresh with TWW or BDW reduces salinity build up risks and the levels of elements (Pb, B, Ni, Co) in soil compared to re-use marginal water. Soil pathogens: using marginal water slightly contaminated the soil with total faecal coliform (TFC), mites, shigella and salmonella Plant anatomy: No great changes in anatomical disturbance where induced in different structures of plants which were reduced at maturity stage. Primary guidelines for re-using marginal water: From obtained results it can be recommended to use marginal water with salinity content ranged between 1.1 to 3. 64 dS/m, and elemental contents (Pb 3.0–3.51 ppm), (B 0.05–1.67 ppm), (Co 0.04–0.07 ppm), (Ni 0.08–0.15 ppm) for safe (field, vegetable and medicinal) crops production. Reuse bio solids for crop production: Sewage sludge produced from treated wastewater can be safely used by mixing with rice straw (1:1 w/w) for economic crop production and saving mineral fertilisers. General conclusion: In the North Nile Delta, marginal water (especially BDW) can be safely used without significant negative impact on the environment, but there is a need for multi-disciplinary, long-term research to investigate irrigation with marginal water in terms of the environment, public health and agricultural productivity.
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PFUELLER, SHARRON L. "Role of bioregionalism in Bookmark Biosphere Reserve, Australia." Environmental Conservation 35, no. 2 (June 2008): 173–86. http://dx.doi.org/10.1017/s0376892908004839.
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SUMMARYBioregionalism claims that interaction between the biophysical and human components of a region generates place-based environmental and social understanding and concern, which lead to locally shared power and responsibility in cooperative land management and governance. The Man and the Biosphere Programme's Seville Strategy calls for local community participation in a multi-stakeholder ecosystem-based approach to conservation, but it is unclear if tenets of bioregionalism play a role in its implementation. Bookmark Biosphere Reserve (BBR) in Australia has substantially succeeded in scientific research and monitoring, conservation, environmental education and sustainable land-use initiatives. Aspects of bioregionalism (for example recognition of the region's unique identity, local community sense of responsibility, integration of local knowledge, presence of motivated local leaders and cooperative community-based management through a network of groups) have contributed to success. Other crucial factors were funding, technical and scientific information and support from government agencies, leadership from members of state and federal government and from private philanthropic foundations, community capacity-building for sustainable land management and availability of volunteers from outside the region. Nevertheless, conflict arose in relation to governance, originating from the recognized difficulties of reconciling a diversity of allegiances, motivations, management styles and personalities, and resulted in division of BBR into two, one section being managed largely through the private sector and community volunteers, the other (renamed Riverland Biosphere Reserve) coordinated by a committee with more diverse affiliations. Bioregionalism can play a role in biosphere reserves but motivations and resources of external public and private organizations are also vital. Avoiding weaknesses of bioregional approaches requires greater attention to social aspects of environmental management. Governance structures and processes need to be inclusive, flexible and equitable in decision making and access to funds. They should support both agency and community-initiated activities and include conflict resolution mechanisms.
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Jyoti Das, Nanda Karmaker, and Ruhul A. Khan. "Reasons and consequences of river water pollution and their remediation: In context of Bangladesh." GSC Advanced Research and Reviews 7, no. 1 (April 30, 2021): 023–24. http://dx.doi.org/10.30574/gscarr.2021.7.1.0066.
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As the population grows and the uncontrolled industrialization, urbanization rises as well, it is high time we should give proper attention to the fact of river pollution in our country which is deploying harmful impacts both on human health and environmental, aquatic ecosystem. A plethora of studies have been done on different aspects of river water pollution. In this paper a thorough discussion regarding this fact has been presented compiling a number of important studies on it. Major causes behind this pollution have been mentioned widely, like improper management of industrial and sewage effluents. However, to detect this contamination in the major rivers of Bangladesh, various studies have been done to see the physicochemical properties of the water, such as pH, turbidity, color, odor, DO, TOD, COD, TSS, EC, dissolved metal, and other chemical and bacteriological substances etc. The microorganisms within the water are the prime sources to cause different water borne diseases like Diarrhea, Cholera, Scabies and Asthma. To find out the remedies to this problem, urgent emphasis should be given on preventive measures and to take appropriate steps to halt and improve the existing pollution of the rivers. A lot of water treatment systems are being practiced throughout the world to restore the health of the rivers as well as to reuse the waste water. Though the systems are not much popular in Bangladesh, the government should facilitates the practice of them extensively and strengthen the laws against environmental pollution.
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Calderón- Rodríguez, Nelly Patricia. "Different Clinical Practice in Hemodialysis in Mexico and Colombia." Mexican Journal of Medical Research ICSA 7, no. 14 (July 5, 2019): 1–5. http://dx.doi.org/10.29057/mjmr.v7i14.3831.
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Chronic kidney disease is the structural or functional damage of the kidneys for more than three months and is considered a public health problem, since one out of every ten adults suffer from; the hemodialysis is a therapeutic modality that replaces kidney function (excretion of waste products, regulation of water balance and regulation of the acid-base balance) improving the quality and years of life in patients with chronic kidney disease. However, clinical practices used (dialyzers, duration of hemodialysis sessions, vascular access and health personnel) vary in each country, which has an impact on the quality of life and patient mortality. Objective: To describe the differences in the reuse of dialyzers, duration of hemodialysis sessions, goals for the type of vascular access used and the health personnel who are in each renal unit, from the rules, between Mexico and Colombia. Conclusions: The differences that exist in clinical practices of hemodialysis between Mexico and Colombia are given from the health standards, however, it is necessary reinforce aspects in the both countries to provide better care for patients with chronic kidney disease.
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Little, Stephen, Andrew Woodward, Glenn Browning, and Helen Billman-Jacobe. "Water Distribution Systems in Pig Farm Buildings: Critical Elements of Design and Management." Animals 11, no. 11 (November 15, 2021): 3268. http://dx.doi.org/10.3390/ani11113268.
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Drinking water distribution systems (WDSs) within buildings on pig farms have critical elements of their design and management that impact water provision to pigs, water quality, the efficacy of in-water antimicrobial dosing, and, thus, pig health and performance. We used a mixed-methods approach to survey managers of 25 medium to large single-site and multi-site pig farming enterprises across eastern and southern Australia. We found wide variation in the configuration (looped or branched) and total length of WDSs within buildings across farms and in pipe materials and diameters. Within many conventional buildings and some eco-shelters, WDSs were ‘over-sized’, comprising large-diameter main pipelines with high holding volumes, resulting in slow velocity water flows through sections of a WDS’s main pipeline. In over half of the weaner buildings and one-third of grower/finisher buildings, the number of pigs per drinker exceeded the recommended maximum. Few farms measured flow rates from drinkers quantitatively. WDS sanitization was not practiced on many farms, and few managers were aware of the risks to water quality and pig health. We identified important aspects of water provision to pigs for which valuable recommendations could be added to industry guidelines available to pig farm managers.
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Lim, R. "041. ENDOCRINE DISRUPTING IMPACTS IN RECEIVING WATERS OF THE SYDNEY BASIN." Reproduction, Fertility and Development 22, no. 9 (2010): 13. http://dx.doi.org/10.1071/srb10abs041.
Full textAbstract:
Water reuse for a number of activities including potable water and replacement of environmental flows is becoming more significant due to the prolonged drought Australia has recently experienced. There is also much debate regarding potential impacts of compounds such as steroid endocrine disrupting chemicals (EDCs), pharmaceuticals and personal care products (PPCPs), and persistent organic pollutants (POPs) to environmental and human health. This paper presents an overview of findings on some EDCs in the Sydney Basin to assess the environmental risk they pose. A tiered approach, using a suite of endpoints spanning in vitro (e.g., estrogen receptor binding assay, the 2-hybrid yeast test) to in vivo (using the mosquitofish (Gambusia holbrooki) to assess vitellogenin induction, and morphological and behavioural changes) studies was conducted on aquatic systems receiving urban and treated sewage effluents. In vitro bioassays suggest low levels of estrogenicity in sewage contaminated waterways. Both estradiol (E2) and estrone (E1) were identified in all river water samples, suggesting that sewage contamination is widespread. The synthetic hormone, ethynylestradiol (EE2), was below detection limits in all samples tested. Results indicate that the STPs were not the only source of EDCs in aquatic systems within the Sydney area. Improvements in treatment technologies in STPs have substantially reduced EDC levels in final effluent as indicated by a reduction inendocrine disrupting effects on the mosquitofish over several years of study. In addition, advanced tertiary treatment technology removed EDCs to levels below that measurable by in vitro assays and in vivo fish testing. This tiered weight of evidence approach provided insights to the risks EDCs in sewage effluent produced from current treatment technologies have on the environment.
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F. Recher, Harry. "Australian Elections, Wilderness and the Lost Billions." Pacific Conservation Biology 4, no. 3 (1998): 177. http://dx.doi.org/10.1071/pc980177.
Full textAbstract:
As I write this editorial, Australia is in the final week of national elections. Apart from the appearance of a strongly nationalistic, and minority, party which the media has promoted as racist, it is unlikely that Australia's election has received much notice outside Australia. Yet there are aspects to this election which should disturb anyone interested in achieving global ecological sustainability and the conservation of global biodiversity. First, there has been a conspicuous silence from the major political parties concerning environmental issues. To be sure, the sitting conservative government has rolled out the pork barrel and grandly announced funding for local conservation initiatives ? especially in marginal seats ? but there has been no debate on issues nor have environmental policies been afforded even a small fraction of the attention given to the economy, unemployment, health or education. Moreover, the projects funded do nothing to resolve the underlying causes of Australia's declining environmental quality (e.g., land clearing, unsustainable logging practices, over grazing, and excessive demands on fresh water). This is despite the fact that respondents to polls continue to list the environment among the most important issues concerning Australians.
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Adibfar, Akbar. "The Best Desalination Technology for the Persian Gulf." International Journal of Social Ecology and Sustainable Development 2, no. 4 (October 2011): 55–65. http://dx.doi.org/10.4018/jsesd.2011100105.
Full textAbstract:
One in six people worldwide do not have access to safe freshwater. The world has been divided into 3 areas: Scarce, Stressed and Sufficiently available potable water by World Health Organization (WHO). The countries around Persian Gulf in the Middle East are in Scarcity area. Desalination solution has been proved as the primary response to water scarcity. This region ranks among the world’s top ten desalinating countries, namely, in descending order: Saudi Arabia, United Arab Emirates, Kuwait and Qatar. There are some key parameters in selecting different technologies for desalination, including temperature. The temperature can be quite low in some countries such as Australia, while it is rather high in Persian Gulf. Total dissolved Solid (TDS) which is representative of salinity is a critical factor, similar to temperature, in selecting the desalination technology. The value encountered in Persian Gulf is extremely high as compared to the normal range of sea water salinity. The three principal desalination technologies used all over the world are multi-stage flash (MSF), reverse osmosis (RO), and multi-effect distillation (MED). This study looks at the different aspects of development such as costs, capabilities and state-of-the-art technologies. A comparative analysis of these technologies is presented and the best technology from financial and technical point of view is introduced and discussed.