Relevant bibliographies by topics / Wastewater regulations

Academic literature on the topic 'Wastewater regulations'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Contents

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Wastewater regulations.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Wastewater regulations"

1

Koyuncu, Serdar, and Sema Arıman. "Domestic wastewater treatment by real-scale electrocoagulation process." Water Science and Technology 81, no. 4 (February 15, 2020): 656–67. http://dx.doi.org/10.2166/wst.2020.128.

Full text
Abstract:
Abstract In this study, domestic wastewaters originating from a settlement with a population of 17,500 were treated by electrocoagulation process in a real-scale EC plant and the economic applicability of the process was investigated. The removal efficiencies of control parameters in the influent and effluent of the real-scale treatment plant such as suspended solids (SS), biological oxygen demand (BOD), chemical oxygen demand (COD), total nitrogen (TN), total phosphorus (TP) and changes of pH and conductivity parameters were monitored for 12 months. The obtained data were evaluated according to European Urban Wastewater Treatment Directive, Turkish Water Pollution Control Regulation and Turkish Urban Wastewater Treatment Regulation. According to the results obtained, the removal efficiencies of the pollutant parameters were achieved in the range of 72–83% for SS, 67–80% for COD, 69–81% for BOD, 21–47% for TN and 27–46% for TP. Considering the Turkish wastewater discharge regulations, it can be concluded that the discharge standards for SS, COD and BOD parameters were achieved while they were not achieved in certain periods for TN and TP. In addition, the energy consumption and the operating cost of this real-scale plant were determined to be 0.49–0.54 kWh/m3 and 0.24–0.28 EUR/m3, respectively.
APA, Harvard, Vancouver, ISO, and other styles
2

Ritter, William. "State Regulations and Guidelines for Wastewater Reuse for Irrigation in the U.S." Water 13, no. 20 (October 11, 2021): 2818. http://dx.doi.org/10.3390/w13202818.

Full text
Abstract:
The objective of this paper is to present an overview of state regulations and guidelines for wastewater reuse for irrigation. Land application of wastewater in the U.S. began in the 19th century when it was considered the safest and best method for wastewater disposal. According to the Environmental Protection Agency (EPA), 27 states have regulations for wastewater reuse and 11 states have guidelines for reuse. Some states have no regulations or guidelines for wastewater reuse. For urban wastewater reuse for irrigation where public access is not restricted and for irrigation of food crops, many of the states require additional levels of treatment beyond secondary treatment, which may include oxidation, coagulation, and filtration and high levels of disinfection. California, Arizona, Texas, and Florida were the earliest states to establish water reuse programs and account for the majority of wastewater reuse for irrigation in the U.S. Several of the challenges to increase wastewater reuse are water rights in the western states and a lack of funding for new projects.
APA, Harvard, Vancouver, ISO, and other styles
3

Radelyuk, Ivan, Kamshat Tussupova, Kulshat Zhapargazinova, Madeniyet Yelubay, and Magnus Persson. "Pitfalls of Wastewater Treatment in Oil Refinery Enterprises in Kazakhstan—A System Approach." Sustainability 11, no. 6 (March 18, 2019): 1618. http://dx.doi.org/10.3390/su11061618.

Full text
Abstract:
The present article is an assessment of wastewater treatment processes in the oil refinery sector in Kazakhstan by comparing relevant experience of developed and developing countries. The legislation in this sphere, the treatment methods, the discharge process and the effect on the environment were evaluated following international and national regulations. In our study, the wastewater systems in three factories in Kazakhstan were assessed. Results show that, even though the environmental regulation in Kazakhstan promotes the polluter pays principle and follows the World Health Organization (WHO) recommendations, the oil refinery plants in Kazakhstan still contain exceeding concentrations of pollutants in their effluents. One issue is that the local legislation allows disposal of wastewater to natural or artificial ponds as long as the concentrations of pollutants in effluents are less than the already existing concentrations in the pond. Consequently, the factories can use ponds with an initially high concentration of contaminants. The high initial concentration of pollutants in the pond water is due to wastewater discharged before the implementation of current environmental regulations. This issue in the current legislation leads to the situation where there is no incentive for efficient wastewater treatment. The national law also lacks regulations regarding which methodology should be used to assess the pollutants in the wastewater. Thus, the control by national environmental office for each enterprise is negotiated separately between the factory and the governmental body. This gives the factory a strong position to define the parameters assessing the effluents. This has led to none of the factories measuring, e.g., heavy metals in discharged wastewater. Total petroleum hydrocarbons (TPH) concentration in wastewater is often exceeded at each factory and there is no analysis done for different hydrocarbon fraction. To overcome the issues described in the present study, we strongly recommended a unified and transparent methodology for the country’s oil refinery industry to assess important pollutants in discharged wastewater.
APA, Harvard, Vancouver, ISO, and other styles
4

Chen, Jie, Xiaoling Jin, Chunxia Zhao, Zhe Qin, Jingfei Wang, and Shu-xuan Liang. "Biotoxicity and by-product identification of dye wastewaters." Water Practice and Technology 14, no. 2 (May 10, 2019): 449–56. http://dx.doi.org/10.2166/wpt.2019.029.

Full text
Abstract:
Abstract Dyeing effluent is a typical refractory wastewater containing toxic pollutants. It is difficult to treat it to meet discharge regulations. The biotoxic effects of pollutants on microorganisms are one of the main constraints on efficient wastewater degradation. The aim of this study was to evaluate biotoxic effects and try to screen toxic substances from dye wastewater. The toxic effects of wastewaters collected at different treatment stages from a wastewater treatment plant in a dye industrial park were determined using bioluminescent bacteria (Vibrio qinghaiensis sp.-Q67). Toxic substances from both influent and effluents were identified by gas chromatography-mass spectrometry. Spearman's rank correlation coefficients indicated significant positive correlations between the toxicity values, and chemical oxygen demand (COD), NH3-N, and total nitrogen (TN). After identifying the toxic levels, phenol, pyridine, and esters were confirmed as the principal organic pollutants in dye wastewater, and increase its toxicity.
APA, Harvard, Vancouver, ISO, and other styles
5

Hachich, Elayse M., Ana T. Galvani, Jose A. Padula, Nancy C. Stoppe, Suzi C. Garcia, Vilma M. S. Bonanno, Mikaela R. F. Barbosa, and Maria Inês Z. Sato. "Pathogenic parasites and enteroviruses in wastewater: support for a regulation on water reuse." Water Science and Technology 67, no. 7 (April 1, 2013): 1512–18. http://dx.doi.org/10.2166/wst.2013.019.

Full text
Abstract:
Brazilian regulations for nonpotable reuse are being established using World Health Organization guidelines, however, they should be developed based on local monitoring studies. This study intended to analyze enteroviruses, protozoa and viable Ascaris sp. eggs in raw (24) and treated (24) effluents from four Wastewater Treatment Plants of São Paulo State, Brazil. The protozoa were detected with the US Environmental Protection Agency (USEPA) Method 1623 in the treated effluents and by centrifugation/Immunomagnetic Separation in the raw influent samples. Viable Ascaris sp. eggs were analyzed according to a modified USEPA method. Enteroviruses were quantified by using human rhabdomyosarcoma cells after adequate concentration procedures. All wastewater influents were positive for Giardia sp. whereas Cryptosporidium sp. was detected in 58.3% of the samples. Giardia sp. and Cryptosporidium sp. were present in 79.2 and 25.0% respectively, of the treated wastewater samples. Viable Ascaris sp. eggs were detected in 50.0 and 12.5% of influent and treated wastewater samples. Enteroviruses were isolated in the 24 raw influent samples and in 46% of the treated samples. Taking into account the densities of Giardia sp. in some treated wastewaters intended to be used as reclaimed water, Quantitative Microbial Risk Assessment studies should be conducted to establish pathogen quantitative criteria for a future Brazilian regulation for water reuse.
APA, Harvard, Vancouver, ISO, and other styles
6

Häggmark, Tobias, and Katarina Elofsson. "The Impact of Water Quality Management Policies on Innovation in Nitrogen and Phosphorus Technology." Water Economics and Policy 07, no. 01 (January 2021): 2150002. http://dx.doi.org/10.1142/s2382624x21500028.

Full text
Abstract:
The purpose of this study is to examine the effects on innovation of environmental regulations aimed at reducing eutrophication. We focus on innovations in nitrogen and phosphorus management technology in the wastewater treatment sector and the agricultural sector. Patent data from Sweden over a 50-year period is used as a measure of innovation. We estimate a negative binomial regression model in a reduced form and by the use of control-functions, taking into account environmental regulation as well as more general determinants of innovation. Our results suggest that increased regulation has induced innovation in the wastewater treatment sector, both in the long and short run. The short-run effect was estimated to 40–70% in the years immediately following the introduction of new environmental regulations. A corresponding effect could not be identified in the agricultural sector. The difference between the sectors is likely explained by differences in policy design, where performance standards are applied in the wastewater sector, while design standards and technology-specific subsidies dominate in the agricultural sector.
APA, Harvard, Vancouver, ISO, and other styles
7

Noga, Jacqueline, Jane Springett, and Nicholas Ashbolt. "Building the case for water and resource recovery in Canada: practitioners' perspectives." Water Policy 23, no. 1 (January 12, 2021): 157–66. http://dx.doi.org/10.2166/wp.2021.206.

Full text
Abstract:
Abstract Water and resource recovery (WRR) involves the collection and treatment of rainwater, stormwater, and/or municipal wastewater to a fit-for-purpose standard. There is no national policy for WRR in Canada, and there are minimal WRR-specific provincial regulations; given this lack of regulation, current projects are highly specific to the local context and approved individually. We engaged people who work with water and wastewater services in the province of Alberta, Canada to discuss what WRR could look like in their context. During 3-h workshops, information on WRR was shared and participants engaged in discussions using a World Café process. Participants discussed the need for supportive regulations and government leadership, financial support, collaboration and knowledge sharing, education and communication, and accounting for risk and liability. Given that the participants are individuals who would be impacted by the development of regulations for WRR, we discuss concepts to provide the guidance needed for the successful implementation of WRR. This research connected experts in water and wastewater and gave space for developing ideas that make sense to those most closely involved in delivering WRR systems.
APA, Harvard, Vancouver, ISO, and other styles
8

Ganze, Charles W., and Richard L. Brown. "Increasing Regulations Result in Decreasing Operational Efficiency." Water Science and Technology 29, no. 8 (April 1, 1994): 149–52. http://dx.doi.org/10.2166/wst.1994.0399.

Full text
Abstract:
In 1972, the Congress of the United States of America passed major legislation called the Clean Water Act, which required all wastewater discharges to meet minimal standards. The Clean Water Act promoted efficiency and cost effectiveness. The Gulf Coast Waste Disposal Authority was created in 1969 by the Legislature of the State of Texas to, among other things, own and operate wastewater disposal systems which would be protective of public health, “terrestrial and aquatic life, the operation of existing industries and the economic development of the state“. Since enactment of the Clean Water Act, other pieces of legislation, rulings by courts of law, and rules established by the U.S. Environmental Protection Agency have thwarted many efforts to operate efficient and cost-effective wastewater treatment facilities. This paper will discuss several of the laws and rules that have discouraged efficiency and cost effectiveness.
APA, Harvard, Vancouver, ISO, and other styles
9

Subramani, T., and V. V.Balaji. "A Study on Effect of Pollutants on Land and River Due to Discharge of Paper Packaging Factory Waste Water in Erode District by Using Gis." International Journal of Engineering & Technology 7, no. 3.10 (July 15, 2018): 144. http://dx.doi.org/10.14419/ijet.v7i3.10.15648.

Full text
Abstract:
In our project mentioned and studied approximately the types of units involved inside the paper packaging manufacturing facility with exclusive tactics are concerned in it and the work done in these procedures. Acquire the wastewater and the sources of wastewater in exceptional procedures and also the effect of this waste count number on the ecosystem. Those industries discharge wastewater that is characterized with the aid of excessive chemical detail element demand, organic element demand, vitamins, and natural and inorganic contents. Such wastewaters, if discharged also has no longer correct treatment, seriously dirty receiving water our bodies and disrupts complete scheme. Moreover, the Indian authorities has imposed terribly strict regulations and rules for effluent discharge to save ecology. As a result, suitable remedies ways are required therefore on meet the effluent discharge standards
APA, Harvard, Vancouver, ISO, and other styles
10

Mastrović, M. I., and G. D. Šilović. "Wastewater Disposal in the Rijeka Region." Water Science and Technology 18, no. 9 (September 1, 1986): 77–84. http://dx.doi.org/10.2166/wst.1986.0080.

Full text
Abstract:
This paper emphasizes the need for detailed analysis of wastewaters and their impact on the environment in physical plans for urban/tourist coastal areas, as a significant contribution to environmentally sound development, especially the development of tourism in these areas. The paper describes an analysis of this kind, prepared as part of the Regional Physical Plan for the Rijeka Region to the Year 2000. (The Rijeka Region is a major part of the Yugoslav Upper Adriatic.) The existing situation regarding sewerage systems, sewage treatment methods and disposal methods of the communes of the Region is presented. The quantities of wastewaters generated by the residential and tourist populations and by industry are given (by sub-regions) as calculated in 1981 and as estimated for the year 2000. A survey was made of the impact of wastewater on receiving rivers and coastal waters, and the quality of the receiving waters is given, in grades as compared with those prescribed by the Yugoslav legal regulations. Based on urban development concepts, and on the estimated wastewater quantities, alternative forecasts are made of the future impact of wastewater on coastal waters. General guidelines are presented for the provision of adequate sewage disposal facilities in order to achieve the optimum situation.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Wastewater regulations"

1

Kane, Tommy. "Corporatising water and wastewater services in Scotland : governance, regulation and operations." Thesis, University of Strathclyde, 2018. http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=29594.

Full text
Abstract:
This thesis examines the provision of Scotland’s Water and Wastewater Services (WWS) and considers how regulation, governance and operations have changed since the turn of the century. The adoption and implementation of a policy framework which affords a key role to private sector participation in a formally public utility is a central focus of this thesis. The analysis developed below of the politics of water locates the Scottish case firmly within wider global processes: this involves studying the transmission of policy ideas from supra-national agencies to the Scottish national level, and the actors within these policy networks. Neoliberal globalisation provides some of the conceptual framing of this research, and the empirical substance of the thesis is drawn from fieldwork conducted at the United Nations (UN), European Union (EU), UK and Scottish levels. The research argues that the increasing corporatisation of WWS in Scotland observed over the span of this research is possible due to a specific configuration of structures and agents. EU directives, devolution and marketisation provide some of the structural conditions for water policy making. Epistemic water communities, comprising think tanks, policy entrepreneurs and regulators are key agents identified in this research promoting corporatisation. This thesis argues that corporatisation is steadily eroding the public nature of Scotland’s water system.
APA, Harvard, Vancouver, ISO, and other styles
2

Scherman, Patricia Ann (neé Goetch). "The microbial production of polyphenol oxidase enzyme systems and their application in the treatment of phenolic wastewaters." Thesis, Rhodes University, 1992. http://hdl.handle.net/10962/d1004108.

Full text
Abstract:
Phenolic compounds are a group of organic chemicals present in the wastewaters of many synthetic industrial processes. Due to their extreme toxicity to man and animals, and deleterious impact on the environment, a range of techniques exist for the effective treatment and disposal of these pollutants. Biological degradation using microbial enzymes presents a valuable alternative to conventional wastewater treatment systems. This research was therefore initiated to investigate the polyphenol oxidase enzyme system and the feasibility of its application for effluent treatment and studies in organic solvents. The enzyme system is widely distributed in nature, with Agaricus bisporus (the common mushroom) being the best known producer. Biochemical investigations of the enzyme system were therefore carried out using this extract. A screening programme was initiated to identify microbial polyphenol oxidase producers which could be cultured in liquid media, thereby enabling the production of large quantities of enzyme in fermentation systems. Extensive growth optimization and enzyme induction and optimization studies were carried out on selected cultures. A number of good producers were isolated, namely a bacterial culture designated AECI culture no. 26, Streptomyces antibioticus, Streptomyces glaucescens and a manipulated strain, Streptomyces lividans (pIJ702). Enzyme production by Agaricus bisporus mycelia was optimized in deep-liquid culture; enzyme extracts showed high phenol removal efficiencies. Streptomyces antibioticus, Streptomyces glaucescens, Streptomyces lividans (pIJ702) and AECI culture no. 26 whole cells were also investigated for phenol-removing ability in simulated phenolic effluents. The use of whole cells reduces enzyme inactivation and instability due to the protection of the enzyme system within the cell. All cultures showed improved removal efficiencies in phenolic growth media. These results strongly suggest their use for phenol removal in continuous systems.
APA, Harvard, Vancouver, ISO, and other styles
3

LI, BAIKUN. "REDOX POTENTIAL (ORP) REGULATION OF NUTRIENT REMOVAL IN WASTEWATER TREATMENT PROCESSES AND THE STRUCTURE - FUNCTION ANALYSIS OF ACTIVATED SLUDGE FLOC." University of Cincinnati / OhioLINK, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1020695786.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Штепа, В. М. "Науково-теоретичні засади екологічно безпечних технологій очищення промислових стічних вод." Thesis, Сумський державний університет, 2020. https://essuir.sumdu.edu.ua/handle/123456789/78079.

Full text
Abstract:
Дисертацію присвячено розв'язанню науково-прикладної проблеми в галузі екологічної безпеки, яка полягає в розробленні методів удосконалення науково-теоретичних засад управління екологічною безпекою технологій промислового водоочищення зі зменшенням ризиків виникнення надзвичайних ситуацій та врахуванням вимог енергоефективності, що сприятиме дотриманню нормативів шкідливих впливів на довкілля. Науково-обгрунтовано методи удосконалення науково-теоретичних засад управління екологічною безпекою технологій промислового водоочищення, що забезпечує зменшення ризиків виникнення надзвичайних ситуацій, із урахуванням вимог енергоефективності та сприятиме додержанню нормативів шкідливих впливів на довкілля. Розроблено метод управління екологічною безпекою технологій водоочищення, оснований на встановленні та застосуванні ефекту перехресного накладання дії різних способів на одні й ті ж самі забруднювачі, який відрізняється можливістю врахування ризиків виникнення надзвичайних ситуацій та агрегування обладнання систем видалення забруднювачів зі стоків. Обгрунтовано та розроблено метод управління екологічною безпекою водоочищення на основі домінуючого динамічного забруднювача, що грунтується на встановленні за параметрами еколого-енергетичної ефективності забруднювача, який найскладніше усувається, та відрізняється конфігуруванням структури технологій водоочищення на основі комплексного видалення інших забруднювачів разом із домінуючим та обгрунтуванням зменшення кількості контрольованих у режимі реального часу показників якості стоків. Розроблено метод опрацювання та екологічно безпечного використання параметрів технологій промислового водоочищення на основі налаштувань у режимі реального часу нечітких когнітивних та нейромережевих моделей, який відрізняється можливістю поліпшення еколого-економічних показників виробництв із урахуванням ризиків виникнення надзвичайних ситуацій. Удосконалено моделі вимірювання та опрацювання еколого-енергетичних параметрів видалення забруднювачів шляхом комплексного врахування взаємовпливів способів та прийомів їхнього усунення, що лягло в основу створення віртуальної міри енергоефективності водоочищення, яка забезпечує відтворення, опрацювання та збереження значень екологічно безпечних параметрів систем очищення стоків на етапах проектування і під час експлуатації у режимі реального часу на виробничих об'єктах. Отримали подальший розвиток методи побудови систем збирання, опрацювання і використання техніко-економічної інформації для управління екологічною безпекою очищення промислових стічних вод із використанням еколого-енергетичних параметрів, які відрізняється можливістю реалізації ресурсозберігаючого функціонування виробництв під час виконання вимог стандартів серії ISO 14000 "Системи екологічного менеджменту".
Диссертация посвящена решению научно-прикладной проблемы в области экологической безопасности, которая заключается в разработке методов совершенствования научно-теоретических основ управления экологической безопасностью технологий промышленной водоочистки с уменьшением риска возникновения чрезвычайных ситуаций и учетом требований энергоэффективности, что будет способствовать соблюдению нормативов вредных воздействий на окружающую среду. Научно-обоснованно методы совершенствования научно-теоретических основ управления экологической безопасностью технологий промышленной водоочистки, что обеспечивает уменьшение рисков возникновения чрезвычайных ситуаций, с учетом требований энергоэффективности и способствовать соблюдению нормативов вредных воздействий на окружающую среду. Разработан метод управления экологической безопасностью технологий водоочистки, основанный на установлении и применении эффекта перекрестного наложения действия различных способов на одни и те же загрязнители, который отличается возможностью учета рисков возникновения чрезвычайных ситуаций и агрегирования оборудования систем удаления загрязнителей из стоков. Обоснован и разработан метод управления экологической безопасностью водоочистки на основе доминирующего динамического загрязнителя, основанной на установлении по параметрам эколого-энергетической эффективности загрязнителя, который сложнее устраняется, и отличается конфигурированием структуры технологий водоочистки на основе комплексного удаления других загрязнителей вместе с доминирующим и обоснованием уменьшения количества контролируемых в режиме реального времени показателей качества стоков. Разработан метод обработки и экологически безопасного использования параметров технологий промышленной водоочистки на основе настроек в режиме реального времени нечетких когнитивных и нейросетевых моделей, который отличается возможностью улучшения эколого-экономических показателей производств с учетом рисков возникновения чрезвычайных ситуаций. Усовершенствованы модели измерения и обработки эколого-энергетических параметров удаления загрязнителей путем комплексного учета взаимовлияния способов и приемов их устранения, легло в основу создания виртуальной меры энергоэффективности водоочистки, которая обеспечивает воспроизведение, обработку и сохранение значений экологически безопасных параметров систем очистки стоков на этапах проектирования и эксплуатации в режиме реального времени на производственных объектах. Получили дальнейшее развитие методы построения систем сбора, обработки и использования технико-экономической информации для управления экологической безопасностью очистки промышленных сточных вод с использованием эколого-энергетических параметров, которые отличаются возможностью реализации ресурсосберегающего функционирования производств при выполнении требований стандартов серии ISO 14000 "Системы экологического менеджмента".
The dissertation is devoted to the solution of a scientific and applied problem in the field of environmental safety, which consists in developing methods for improving the scientific and theoretical foundations for managing environmental safety of industrial water treatment technologies with a reduction in the risk of emergencies and taking into account energy efficiency requirements, which will contribute to compliance with the standards of harmful environmental impacts. Scientifically substantiated methods for improving the scientific and theoretical foundations of environmental safety management of industrial water treatment technologies, which reduces the risk of emergencies, taking into account energy efficiency requirements and contribute to compliance with standards for harmful environmental impacts. A method for managing the environmental safety of water treatment technologies has been developed. It is based on the establishment and application of the effect of cross-superposition of the action of different methods on the same pollutants, which is distinguished by the possibility of taking into account the risks of emergencies and aggregating the equipment of systems for removing pollutants from effluents. It´s justified and developed a method for managing the environmental safety of water treatment based on a dominant dynamic pollutant based on the establishment of a pollutant that is more difficult to eliminate by environmental and energy efficiency parameters has been substantiated and differs in the configuration of the water treatment technology based on the integrated removal of other pollutants, together with the dominant one and the rationale for reducing the number of real-time stock quality indicators. A method for processing and environmentally safe use of the parameters of industrial water treatment technologies based on real-time settings of fuzzy cognitive and neural network models has been developed. It is distin guished by the ability to improve the environmental and economic indicators of production, taking into account the risks of emergency situations. We have improved the models for measuring and processing the environmental and energy parameters of pollutant removal by comprehensively taking into account the mutual influence of methods and methods for their elimination, which formed the basis for creating a virtual measure of energy efficiency of water treatment, which ensures the reproduction, processing and preservation of the values of environmentally friendly parameters of wastewater treatment systems at the design and real-time operation at industrial facilities. The methods of constructing systems for collecting, processing and using technical and economic information were further developed for environmental safety management of industrial wastewater treatment using environmental and energy parameters, which are distinguished by the possibility of implementing resource-saving production operations when fulfilling the requirements of the standards of the ISO 14000 series "Environmental Management System".
APA, Harvard, Vancouver, ISO, and other styles
5

Muller, Matthew Justin. "Linking institutional and ecological provisions for wastewater treatment discharge in a rural municipality, Eastern Cape, South Africa." Thesis, Rhodes University, 2013. http://hdl.handle.net/10962/d1013048.

Full text
Abstract:
The Green Drop Certification Programme, launched in 2008 alongside the Blue Drop Certification Programme, aims to provide the Department of Water Affairs with a national overview of how municipalities and their individual wastewater treatment works (WWTW) are complying with licence conditions set by the National Water Act (NWA) (No. 36 of 1998; DWAF 1998) and the Water Services Act (No. 108 of 1997; DWAF 1998). By publishing the results of each municipality’s performance, the programme aims to ensure continuous improvement in the wastewater treatment sector through public pressure. The programme has been identified by this project as a necessary linking tool between the NWA and the Water Services Act to ensure protection and sustainable use of South Africa’s natural water resources. It does this through assisting municipalities to improve their wastewater treatment operations which in theory will lead to discharged effluent that is compliant with discharge licence conditions. These discharge licences form part of the NWA’s enforcement tool of Source Directed Controls (SDC) which help a water resource meet the ecological goals set for it as part of Resource Directed Measures (RDM). The link between meeting the required SDC and achieving the RDM goals has never been empirically tested. This project aimed to determine the present ecological condition of the Uie River, a tributary of the Sundays River which the Sundays River Valley Municipality (SRVM) discharges its domestic effluent into. It then determined whether the SRVM’s WWTW was complying with the General Standard licence conditions and what the impact of the effluent on the river was through the analysis of monthly biomonitoring, water chemistry and habitat data. Lastly, the project examined the effectiveness of the Green Drop Certification Programme in bringing about change in the SRVM’s wastewater treatment sector, which previously achieved a Green Drop score of 5.6 percent. It wanted to examine the underlying assumption that a WWTW which improves its Green Drop score will be discharging a better quality effluent that will help a water resource meets the RDM goals set for it. The Kirkwood WWTW did not have a discharge licence at the time of assessment and was thus assessed under the General Standard licence conditions. It was found that the Kirkwood WWTW was not complying with the General Standard discharge licence conditions in the Uie River. This was having a negative impact on the river health, mainly through high concentrations of Total Inorganic Nitrogen (TIN-N), orthophosphate and turbidity. The SRVM should see an improvement in its Green Drop score for the Kirkwood WWTW. However, the municipality showed no implementation of necessary programmes. Implementation of these programmes would help the SRVM meet the General Standard licence conditions (part of SDC) which would help the Uie River meet the RDM goals set for it.
APA, Harvard, Vancouver, ISO, and other styles
6

HSU, PAO-HSING, and 徐寶星. "Analysis of Key Factors Treatment of Industrial Wastewater Meets The Environmental Regulations." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/k8b87a.

Full text
Abstract:
碩士
開南大學
國際企業學系
107
Abstract The purpose of this study is to explore the Analysis of Key Factors Treatment of Industrial Wastewater Meets the Environmental Regulations, so as to understand the governments spirit and economic development strategy for water pollution prevention policies, and the corresponding measures for enterprises to deal with industrial wastewater, in order to create Taiwans economic sustainability. The international competitive advantage of development. This study used questionnaires to analyze the three major aspects of the interaction between the three major aspects of industrial wastewater treatment, including water pollution control measures, pre-treatment control, and treatment plant efficiency through the decision-making laboratory analysis method (DEMATEL). Among them, the water pollution prevention and control law, the discharge water standard, the water pollution prevention measures and management methods and the operation management are the scope. According to the literature, the ten core elements are constructed, and the causal relationship and the degree of influence between the various criteria (factors) are analyzed. . The results of the study show that the government has been widely recognized for the tightening and updating of environmental protection regulations, and the operational efficiency of the industrial wastewater treatment plant and the rationality of the water pollution prevention and control law, the reduction of raw materials for the pollution source process, and the wastewater control of the pre-treatment business. The optimal operation of processing technology and equipment operation and maintenance is the Analysis of Key Factors Treatment of Industrial Wastewater Meets the Environmental Regulations. The results and recommendations of the research and analysis will be provided to provide reference for government environmental protection authorities and enterprises and related personnel engaged in the treatment of industrial wastewater. Keywords: Water Pollution Control Measures, Industrial Wastewater Treatment, DEMATEL
APA, Harvard, Vancouver, ISO, and other styles
7

Chen, Chun-Neng, and 陳俊能. "Study on the regulation of wastewater pretreatment in the industrial district." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/08250635717629205452.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Gopo, Nothando Lilian Queen. "Regulation of wastewater treatment plants in the Ba-Phalaborwa municipality / Q.N. Gopo." Thesis, 2013. http://hdl.handle.net/10394/11549.

Full text
Abstract:
South Africa is a water-scarce country and over the years, the quality of water resources has deteriorated due to poor effluent discharge, agricultural, industrial, mining and human activities. The major contributing factors of poorly-treated or inadequately treated wastewater may be attributed to: (a) the poor design and construction of wastewater treatment plants; (b) lack of qualified process controllers; (c) non-compliance with applicable legislation; (d) lack of proper monitoring; and (e) management issues with regard to wastewater treatment plants. Water quality is important as many communities depend on water resources for their daily activities and livelihood. There is a need therefore to build and manage wastewater treatment plants effectively as they have an impact on water quality. Wastewater treatment plants in South Africa are regulated by the Constitution of the Republic of South Africa, 1996, the National Environmental Management Act 107 of 1998, the National Water Act 36 of 1998, the Water Services Act 108 of 1997, Provincial legislation, Municipal by-laws and other Government policies applicable to Local Government. Chapter 7 of the Constitution inter alia, provides that Local Government has the duty to provide a safe and healthy environment to its community in a sustainable manner. Schedule 4B of the Constitution imposes the function of delivering water, sanitation and wastewater treatment services on Municipalities. This responsibility rests on District Municipalities but may be performed by a Local Municipality if the district municipality lacks the capacity to do so. Although Local Government has the right to govern on its own initiative the affairs of its communities, it needs support and monitoring from other spheres of Government (National and Provincial) to ensure the delivery of wastewater treatment services in a sustainable manner. In this study, Ba-Phalaborwa Local Municipality is used as an example of a Municipality in the Limpopo Province faced with challenges related to the operation and management of its wastewater treatment plant. This study aims to determine who should be responsible for the regulation of wastewater treatment plants in Ba-Phalaborwa Local Municipality area in order to ensure service delivery to communities in a sustainable manner. In order to deal with the challenges experienced by Local Government in dealing with wastewater treatment plants, the study considers Best Practice Guidelines and external service delivery mechanisms, specifically in the form of Public-Private Partnerships. The study concludes with recommendations based on Best Practice Guidelines which Municipalities can use to avoid wastewater pollution and proposes management mechanisms in managing a Public-Private Partnership effectively in order to ensure that they provide service delivery in a sustainable manner.
LLM (Environmental Law and Governance), North-West University, Potchefstroom Campus, 2014
APA, Harvard, Vancouver, ISO, and other styles
9

Simmons, Elizabeth Jane. "An Evaluation of Approaches to Derive Effluent Requirements for Wastewater Treatment Plants in Ontario." Thesis, 2013. http://hdl.handle.net/10214/6766.

Full text
Abstract:
The objectives of this project are to rate three approaches for deriving effluent requirements; create a prioritized list of improvement steps; apply a watershed-level model to determine treatment plant requirements; and provide recommendations for deriving effluent requirements in Ontario. Results of a two-part stakeholder survey show that until advancements are made, compromise is necessary when selecting an approach for deriving effluent requirements, as no one approach meets all the evaluation criteria. However, the necessary steps toward improvement are relatively clear and require multi-disciplinary input. When the watershed-level modelling approach was applied, it was found that although there are challenges that must be addressed, overall, it appears advantageous to use a tool such as watershed-level models for the purpose of deriving effluent requirements in Ontario.
Natural Sciences and Engineering Research Council of Canada, Ontario Graduate Scholarship Program
APA, Harvard, Vancouver, ISO, and other styles
10

Smith-Cunningham, Sandra L. "Aircraft de-icing/anti-icing fluid (ADAF)-laden wastewater evaluation and recommendations for its treatment and regulation /." 2008. http://proquest.umi.com/pqdweb?did=1537011201&sid=1&Fmt=2&clientId=39334&RQT=309&VName=PQD.

Full text
Abstract:
Thesis (M.S.)--State University of New York at Buffalo, 2008.
Title from PDF title page (viewed on Dec. 1, 2008) Available through UMI ProQuest Digital Dissertations. Thesis adviser: Jensen, James N. Includes bibliographical references.
APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "Wastewater regulations"

1

Florida. Dept. of Environmental Regulation. Study of environmental regulations and procedures for wastewater management: Final report. [Tallahassee]: Florida Dept. of Environmental Regulation, 1987.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Laboratory, Warren Spring. Health hazards at wastewater treatment works: The implications of the COSHH regulations. Marlow, Buckinghamshire: Foundation for Water Research, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

The green maze: An introduction to environmental laws and regulations for the water and wastewater industries. Devner: American Water Works Association, 2010.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Alaska. Rural Utility Business Advisor Program. The updated plain English guide to Alaska drinking water and wastewater regulations: For rural utilities serving 25-1,500 people. Juneau?]: Alaska Dept. of Community and Economic Development, Division of Community and Business Development, Rural Utility Business Advisor Program, 2002.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Pretreatment compliance monitoring and enforcement guidance. Rockville, Md: Government Institutes Inc., 1989.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

US GOVERNMENT. Pretreatment compliance inspection and audit manual for approved authorities. Rockville, Md: Government Institutes, Inc., 1989.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Wastewater and shale formation development: Risks, mitigation, and regulation. Toronto: Apple Academic Press, 2015.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Onjala, Joseph O. Regulating industrial wastewater in Kenya: Towards an appropriate institutional arrangement. Copenhagen, Denmark: Centre for Development Research, 2002.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Specified gas emitters regulation: Quantification protocol for anaerobic treatment of wastewater projects. [Edmonton]: Alberta Environment, 2009.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Florida. Legislature. Senate. Committee on Natural Resources and Conservation. A review of Section 403.101, Florida statutes regulation of water purification and wastewater treatment plant operators. [Tallahassee]: The Committee, 1991.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Wastewater regulations"

1

Paranychianakis, Nikolaos V., Miquel Salgot, and Andreas N. Angelakis. "Irrigation with Recycled Water: Guidelines and Regulations." In Treated Wastewater in Agriculture, 77–112. Oxford, UK: Wiley-Blackwell, 2010. http://dx.doi.org/10.1002/9781444328561.ch3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Carraro, Elisabetta, Silvia Bonetta, and Sara Bonetta. "Hospital Wastewater: Existing Regulations and Current Trends in Management." In The Handbook of Environmental Chemistry, 1–16. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/698_2017_10.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Sadhu, S. K., and A. R. Ghosh. "Law and Regulation of Wastes and Wastewater: Indian Perspective." In Wastewater Management Through Aquaculture, 305–22. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-7248-2_16.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Monika, Rajeev Pratap Singh, Pooja Singh, Richa Kothari, Kaushik Gautam, and Anita Singh. "Application of Wastewater in Irrigation and Its Regulation with Special Reference to Agriculture Residues." In Water Pollution and Management Practices, 177–99. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-8358-2_8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Choban, Alla, and Igor Winkler. "Problems of Regulation of Anthropogenic Load on the Water Objects with Various Dilution Ratio in Ukraine." In Advanced Water Supply and Wastewater Treatment: A Road to Safer Society and Environment, 313–18. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-94-007-0280-6_30.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Wang, Xu. "Preliminary Exploration of Sustainability Solutions for Wastewater Management Services: A Case Study of Organic Carbon Regulation." In Springer Theses, 131–53. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-5983-5_7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

"Fracking Wastewater Regulations." In Wastewater and Shale Formation Development, 181. Apple Academic Press, 2015. http://dx.doi.org/10.1201/b18648-13.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Perkins, Richard J. "Regulations and Processes." In Onsite Wastewater Disposal, 7–14. CRC Press, 2018. http://dx.doi.org/10.1201/9781351075176-2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

"Wastewater Characterization and Regulations." In Fundamentals of Biological Wastewater Treatment, 25–42. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2006. http://dx.doi.org/10.1002/9783527609604.ch2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Stephenson, Ralph L., and James B. Blackburn. "Laws and Regulations." In The Industrial Wastewater Systems Handbook, 1–61. CRC Press, 2018. http://dx.doi.org/10.1201/9780203736586-1.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Wastewater regulations"

1

Waluyo, Fatma Ulfatun Najicha, and Abdul Kadir Jaelani. "Regulations in Wastewater Management and the Impact of Wastewater Pollution in Indonesia." In International Conference on Environmental and Energy Policy (ICEEP 2021). Paris, France: Atlantis Press, 2021. http://dx.doi.org/10.2991/assehr.k.211014.058.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

John R Buchanan. "The Evolution of Decentralized Wastewater Management Regulations in Tennessee." In Eleventh Individual and Small Community Sewage Systems Conference Proceedings, 20-24 October 2007, Warwick, Rhode Island. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2007. http://dx.doi.org/10.13031/2013.24002.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Kevin Michael Sherman. "The Benefits of a Variance Procedure in Onsite Wastewater Regulations." In Eleventh Individual and Small Community Sewage Systems Conference Proceedings, 20-24 October 2007, Warwick, Rhode Island. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2007. http://dx.doi.org/10.13031/2013.24006.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Pöhler, Michael, Stefan Gerlach, Kristian Höchel, Tino Mengdehl, and Paul Uwe Thamsen. "Linking Efficiency to Functional Performance by a Pump Test Standard for Wastewater Pumps." In ASME/JSME/KSME 2015 Joint Fluids Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/ajkfluids2015-33763.

Full text
Abstract:
Upcoming Energy related Products (ErP) regulations on wastewater pumps by the European Commission will affect all pump manufacturers and operators of wastewater systems. Hence, the preparation of efficiency standards for wastewater pumps is intensively accompanied by input from the affected stakeholders and experts of different fields [1]. The previous approaches of ErP regulations, as in lot 11 (Electric motors, Ventilation fans, Circulators in buildings, Electric pumps), focus only on efficiency. However, when applying the philosophy of Ecodesign directly to wastewater pumps, the complex flow structure and the transport behaviour of this inhomogeneous multi-phase fluid must be taken into account. While efficiency is an important criterion, it is necessary to take the specifics of sewage transport into account when designing a new test standard, so as not to compromise on proven and “system-efficient” technologies. Therefore, the Berlin Institute of Technology is currently investigating wastewater compositions and limits for reliable pump operation in order to design a test standard for wastewater pumps comparable to the DIN EN ISO 9906 efficiency tests for clear water [2]. The test will assess the functional fulfilment level of the pump performance, differentiating between the wastewater classes.
APA, Harvard, Vancouver, ISO, and other styles
5

Rojeski, Jr., Peter, and Stephanie Luster-Teasley. "The Impact of State Regulations on Innovative Wastewater Treatment Implementation: Trends for On-Site Wastewater Disposal in North Carolina." In World Environmental and Water Resources Congress 2008. Reston, VA: American Society of Civil Engineers, 2008. http://dx.doi.org/10.1061/40976(316)123.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Nguyen, Don. "Emerging Technologies for Treating Contaminants in Marine Wastewater." In ASME/USCG 2010 2nd Workshop on Marine Technology and Standards. American Society of Mechanical Engineers, 2010. http://dx.doi.org/10.1115/mts2010-0207.

Full text
Abstract:
Contaminants in marine wastewater facing current or near-future regulations can be broadly categorized to free oil & suspended solids, emulsified oil and dissolved solids, and biological organisms. The first category of contaminants has been treated by commercially available OWS systems. The second class of contaminants, emulsified oils and dissolved solids, has been effectively treated by UF membrane filtration and to a less extent by biological oxidation and surface modified filters. A survey of recent advances in physical and chemical demulsification technologies to enhance emulsified oil removal with reduced loads on membrane was conducted. The study also identified new applications for treatments of biological organisms in ballast water. Paper published with permission.
APA, Harvard, Vancouver, ISO, and other styles
7

Sánchez, Yuly, Mehrab Mehrvar, Lynda McCarthy, Édgar Quiñones, Luis Cheu, Jairo Romero, Alexander Reub, Rocío González, and Jairo Chacón. "IMPACT OF THE SEWAGE DISCHARGE FROM HOT SPRINGS TO WATER SOURCES." In Mujeres en ingeniería: empoderamiento, liderazgo y compromiso. Asociacion Colombiana de Facultades de Ingeniería - ACOFI, 2021. http://dx.doi.org/10.26507/ponencia.1691.

Full text
Abstract:
Hot springs have traditionally been a tourist attraction in many parts of the world, such as Japan, Canada, Taiwan among others. During the peak tourist season, it is usually discharged into streams without treatment, which can affect the quality of the receiving water, causing negative impacts to the aquatic ecosystems. Downstream ecological impacts of several major spa recreational sites in different parts of the world have been studied, and it has been found that wastewater discharges of hot springs have adverse ecological effects. The mineral composition in hot springs, derived mainly from groundwater, is usually greater than that of stream water. Studies carried out with models such as QUAL2K (or Q2K), the modernized version of the QUAL2E (or Q2E), simulate the effect of the hot spring discharges on surface water sources, mainly negative in nature. Despite the negative consequences of the impacts on ecosystems derived from hot springs’ wastewater, it is interesting to note that there are regulations for wastewater discharges – including backwash water from swimming pools – into rivers and sewers (e.g., Germany and Canada), but not specifically for hot springs discharge. Nonetheless, this evidence indicates a necessity for the authorities to increase the control of the use of hot springs and the discharge of their untreated waters. In Colombia, Resolution 631 of 2015 regulates the discharge of wastewater into rivers and sewers. Yet, it does not consider parameters for the discharge of hot springs. However, the authors deem it necessary to advance in the investigation on the contamination of the wastewaters coming from hot springs, and think about a sustainable tourism of hot springs.
APA, Harvard, Vancouver, ISO, and other styles
8

Alexandersen, Dennis Kronborg, Tom R. Headley, Stephane Prigent, and Marcus Schmuelling. "Sustainable Treatment of Wastewater Generated by Oil & Gas Drilling Rig Camps." In ADIPEC. SPE, 2022. http://dx.doi.org/10.2118/211776-ms.

Full text
Abstract:
Abstract Oil & gas exploration and production activities often takes place in remote areas with no immediate wastewater treatment access. It is industry practice to establish own treatment facilities or to tanker wastewater long distance to municipal treatment facilities outside the concession areas. The remote setting and harsh operating conditions makes it challenging for mechanical treatment systems to comply to national effluent discharge standards. This paper explores if a nature-based portable solution can help overcome this challenge while promoting sustainability. By deploying a Test Unit (ReedBox®) to Khalifa Industrial Zone Abu Dhabi in the United Arab Emirates, the treatment performance is tested for compliance. Following a 26-week test period, a third-party performance verification confirmed that the Test Unit satisfactorily treated the wastewater producing an effluent in full compliance with the Abu Dhabi Recycled Water and Biosolids Regulations for P1 Unrestricted Reuse. As a result, the portable nature-based wastewater treatment system offers a green alternative to operators and contractors willing to uptake innovation that helps protect the environment.
APA, Harvard, Vancouver, ISO, and other styles
9

Chavan, Raj, Rod Reardon, Dwayne Kreidler, and Jon DeArmond. "Do Wastewater Utilities Need to Invest in Innovative Technologies to Meet New Stringent Discharge Regulations?" In World Environmental and Water Resources Congress 2017. Reston, VA: American Society of Civil Engineers, 2017. http://dx.doi.org/10.1061/9780784480595.041.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Lopez, Alejandro. "Radiological Issues Associated With the Recent Boom in Oil and Gas Hydraulic Fracturing." In ASME 2013 15th International Conference on Environmental Remediation and Radioactive Waste Management. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/icem2013-96119.

Full text
Abstract:
As the worldwide hydraulic fracturing ‘fracking’ market continued to grow to an estimated $37 Billion in 2012, the need to understand and manage radiological issues associated with fracking is becoming imperative. Fracking is a technique that injects pressurized fluid into rock layer to propagate fractures that allows natural gas and other petroleum products to be more easily extracted. Radioactivity is associated with fracking in two ways. Radioactive tracers are frequently a component of the injection fluid used to determine the injection profile and locations of fractures. Second, because there are naturally-occurring radioactive materials (NORM) in the media surrounding and containing oil and gas deposits, the process of fracking can dislodge radioactive materials and transport them to the surface in the wastewater and gases. Treatment of the wastewater to remove heavy metals and other contaminates can concentrate the NORM into technologically-enhanced NORM (TENORM). Regulations to classify, transport, and dispose of the TENORM and other radioactive waste can be complicated and cumbersome and vary widely in the international community and even between states/provinces. In many cases, regulations on NORM and TENORM do not even exist. Public scrutiny and regulator pressure will only continue to increase as the world demands on oil and gas continue to rise and greater quantities of TENORM materials are produced. Industry experts, health physicists, regulators, and public communities must work together to understand and manage radiological issues to ensure reasonable and effective regulations protective of the public, environment, and worker safety and health are implemented.
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Wastewater regulations"

1

Gottlieb, Yuval, Bradley Mullens, and Richard Stouthamer. investigation of the role of bacterial symbionts in regulating the biology and vector competence of Culicoides vectors of animal viruses. United States Department of Agriculture, June 2015. http://dx.doi.org/10.32747/2015.7699865.bard.

Full text
Abstract:
Symbiotic bacteria have been shown to influence host reproduction and defense against biotic and abiotic stressors, and this relates to possible development of a symbiont-based control strategy. This project was based on the hypothesis that symbionts have a significant impact on Culicoides fitness and vector competence for animal viruses. The original objectives in our proposal were: 1. Molecular identification and localization of the newly-discovered symbiotic bacteria within C. imicola and C. schultzei in Israel and C. sonorensis in California. 2. Determination of the prevalence of symbiotic bacteria within different vector Culicoides populations. 3. Documentation of specific symbiont effects on vector reproduction and defense: 3a) test for cytoplasmic incompatibility in Cardinium-infected species; 3b) experimentally evaluate the role of the symbiont on infection or parasitism by key Culicoides natural enemies (iridescent virus and mermithid nematode). 4. Testing the role(s) of the symbionts in possible protection against infection of vector Culicoides by BTV. According to preliminary findings and difficulties in performing experimental procedures performed in other insect symbiosis systems where insect host cultures are easily maintained, we modified the last two objectives as follows: Obj. 3, we tested how symbionts affected general fitness of Israeli Culicoides species, and thoroughly described and evaluated the correlation between American Culicoides and their bacterial communities in the field. We also tried alternative methods to test symbiont-Culicoides interactions and launched studies to characterize low-temperature stress tolerances of the main US vector, which may be related to symbionts. Obj. 4, we tested the correlation between EHDV (instead of BTV) aquisition and Cardinium infection. Culicoides-bornearboviral diseases are emerging or re-emerging worldwide, causing direct and indirect economic losses as well as reduction in animal welfare. One novel strategy to reduce insects’ vectorial capacity is by manipulating specific symbionts to affect vector fitness or performance of the disease agent within. Little was known on the bacterial tenants occupying various Culicoides species, and thus, this project was initiated with the above aims. During this project, we were able to describe the symbiont Cardinium and whole bacterial communities in Israeli and American Culicoides species respectively. We showed that Cardinium infection prevalence is determined by land surface temperature, and this may be important to the larval stage. We also showed no patent significant effect of Cardinium on adult fitness parameters. We showed that the bacterial community in C. sonorensis varies significantly with the host’s developmental stage, but it varies little across multiple wastewater pond environments. This may indicate some specific biological interactions and allowed us to describe a “core microbiome” for C. sonorensis. The final set of analyses that include habitat sample is currently done, in order to separate the more intimately-associated bacteria from those inhabiting the gut contents or cuticle surface (which also could be important). We were also able to carefully study other biological aspects of Culicoides and were able to discriminate two species in C. schultzei group in Israel, and to investigate low temperature tolerances of C. sonorensis that may be related to symbionts. Scientific implications include the establishment of bacterial identification and interactions in Culicoides (our work is cited in other bacteria-Culicoides studies), the development molecular identification of C. schultzei group, and the detailed description of the microbiome of the immature and matched adult stages of C. sonorensis. Agricultural implications include understanding of intrinsic factors that govern Culicoides biology and population regulation, which may be relevant for vector control or reduction in pathogen transmission. Being able to precisely identify Culicoides species is central to understanding Culicoides borne disease epidemiology.
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Wastewater regulations' for particular source types:
Journal articles Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography