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Статті в журналах з теми "Decentralized water systems"
Norton, John W. "Decentralized Systems." Water Environment Research 80, no. 10 (October 2008): 1322–39. http://dx.doi.org/10.2175/106143008x328662.
Повний текст джерелаNorton, John W. "Decentralized Systems." Water Environment Research 81, no. 10 (September 10, 2009): 1440–50. http://dx.doi.org/10.2175/106143009x12445568399893.
Повний текст джерелаNorton, John W. "Decentralized Systems." Water Environment Research 82, no. 10 (January 1, 2010): 1367–75. http://dx.doi.org/10.2175/106143010x12756668801257.
Повний текст джерелаSharma, Ashok, Stewart Burn, Ted Gardner, and Alan Gregory. "Role of decentralised systems in the transition of urban water systems." Water Supply 10, no. 4 (September 1, 2010): 577–83. http://dx.doi.org/10.2166/ws.2010.187.
Повний текст джерелаTsegaye, Seneshaw, Thomas M. Missimer, Jong-Yeop Kim, and Jason Hock. "A Clustered, Decentralized Approach to Urban Water Management." Water 12, no. 1 (January 9, 2020): 185. http://dx.doi.org/10.3390/w12010185.
Повний текст джерелаPearce-Oroz, Glenn. "The viability of decentralized water and sanitation provision in developing countries: the case of Honduras." Water Policy 8, no. 1 (February 1, 2006): 31–50. http://dx.doi.org/10.2166/wp.2006.0003.
Повний текст джерелаLackey, Katy, Suzanne Sharkey, Sybil Sharvelle, Paula Kehoe, and Taylor Chang. "Decentralized Water Reuse: Implementing and Regulating Onsite Nonpotable Water Systems." Journal of Sustainable Water in the Built Environment 6, no. 1 (February 2020): 02519001. http://dx.doi.org/10.1061/jswbay.0000891.
Повний текст джерелаLiu, Yang, Alison Sim, and Meagan S. Mauter. "Energy-Optimal Siting of Decentralized Water Recycling Systems." Environmental Science & Technology 55, no. 22 (October 29, 2021): 15343–50. http://dx.doi.org/10.1021/acs.est.1c04708.
Повний текст джерелаLee, Juneseok, Ki-Hwan Bae, and Tamim Younos. "Conceptual framework for decentralized green water-infrastructure systems." Water and Environment Journal 32, no. 1 (September 25, 2017): 112–17. http://dx.doi.org/10.1111/wej.12305.
Повний текст джерелаPiratla, Kalyan R., and Suraj Goverdhanam. "Decentralized Water Systems for Sustainable and Reliable Supply." Procedia Engineering 118 (2015): 720–26. http://dx.doi.org/10.1016/j.proeng.2015.08.506.
Повний текст джерелаДисертації з теми "Decentralized water systems"
O'Connor, Catherine L. (Catherine Leber). "Decentralized water treatment in urban India, and the potential impacts of reverse osmosis water purifiers." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/106259.
Повний текст джерелаCataloged from PDF version of thesis.
Includes bibliographical references (pages 185-191).
The degrading water quality in India combined with reduced groundwater supplies and insufficient municipal water distribution has led to the adoption of household water purifiers across the country. These water purifiers are used to treat water for potable consumption (drinking and cooking), and include a range of technologies capable of treating contaminants found in municipal water, groundwater, or other supplemental sources. The purifiers vary in cost, and have varying levels of accessibility to different socio-economic groups. As of 2010, market studies estimated that water purifiers, and more specifically reverse osmosis (RO) units, had not yet achieved a high level of diffusion across India, though sales were projected to greatly increase. More recent studies found levels of adoption for RO purifiers in certain urban areas growing above 50%, much higher than the 10% or less of households relying primarily on groundwater. Interviews conducted in January 2016 confirmed that households with a municipal supply were treating their water with RO purifiers, so RO adoption has spread beyond homes with only groundwater as a source. Though increased RO system diffusion may increase access to improved water quality, the purifiers require a reject line that discards 30 to 80% of the input water. The waste generated can be substantial, and for an average RO recovery of 20% treating 5.0 liters per capita per day drinking water, total up to 100 liters per household per day, 82.2 megaliters per day (MLD) within the city of Delhi, or even 2,340 MLD across all major urban areas of India if complete adoption occurs within the top two socio-economic groups. These volumes can amount to a measurable fraction of the volume of groundwater that a city extracts to supplement its surface water supply, and the volume of wastewater that goes untreated due to insufficient infrastructure. Policy and technology-based alternatives such as a water efficiency ranking program and the replacement of RO with electrodialysis, a more efficient desalination technology, align with government initiatives calling for higher efficiency and public participation, though a combined program is likely needed to make household water treatment sustainable in the long-term.
by Catherine L. O'Connor.
S.M. in Engineering and Management
Tsegaye, Seneshaw Amare. "Flexible Urban Water Distribution Systems." Scholar Commons, 2013. http://scholarcommons.usf.edu/etd/4597.
Повний текст джерелаMpofu, Claudius. "Adopting a resilience lens in managing decentralized water, sanitation and hygiene (WASH) systems." Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-236974.
Повний текст джерелаSantillan, Steven. "Water Supplies in the Southwest Making a Finite Supply Sustainable for a Growing Population." The University of Arizona, 2014. http://hdl.handle.net/10150/337345.
Повний текст джерелаAcross the world, populations continue to grow while water supplies stay fixed. In the American Southwest, water supplies are at an all time low, yet warm, favorable conditions continue to lure residents to the area. With some of the country’s lowest fresh water reserves, it is imperative that changes are made to water usage trends and associated energy inefficiencies. An analysis of water usage in Tucson was conducted to evaluate potential solutions for reducing consumption and to correspondingly shrink energy usage. Case studies were investigated, census numbers were used to roughly calculate statistics, existing knowledge on water conservation techniques were researched, and alternative water filtration as well as distribution systems were scrutinized for their viability amongst current infrastructure. The potential to reduce water usage is greatest with the largest user of water in Tucson, the single-family residence. On average the single-family residence is capable of effectively saving nearly 25,000 gallons of water per year with efficient fixtures, another 25,000 gallons per year by reducing outdoor water use by half, and another 10,625 gallons by utilizing rainwater harvesting. Combine those savings and multiply them by the 225,000-240,000 single-family residents estimated to be in Tucson and the savings reach more than five billion gallons a year, effectively almost cutting water consumption in Tucson by a fifth. Further, to keep remaining usage impacts negligible, implementation of an indirect or direct potable water reuse system could satisfy populations for decades by reusing water that would normally be discarded as effluent. Water consumption must be curved so that it can satisfy a growing population’s needs. Amongst residents of Tucson, single-family residences have the greatest potential to reduce water and associated energy needs. Through conservation techniques, water harvesting, reducing outdoor water usage, and potable reuse, limited water supplies can satisfy future generations to come.
Debiasi, Ronaldo. "Avaliação de vulnerabilidade dos pequenos sistemas de abastecimento de água no estado do Rio Grande do Sul." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2016. http://hdl.handle.net/10183/143620.
Повний текст джерелаAccording to several studies, there is an association between progresses in drinking water and sanitation to improvements in health indices. Investments in safe drinking water and sanitation may yield in an economic benefit, as the health-effect costs outweigh the costs of undertaking the required interventions. The objective of this research was to evaluate small community water supply systems in the state of Rio Grande do Sul, assessing the vulnerability of the systems and population that depends on them. The survey followed statistical sampling techniques to design the sample size and a water vulnerability index tool that included four dimensions, ten indicators and five vulnerability ratings was constructed. The condition was characterized by the ten proposed indicators, while statistical analysis of the vulnerability index was performed with mean estimates for the State and subpopulations. It was also estimated the proportion of the target population and water supply systems considered vulnerable. Conclusions were presented with respect to the method applied and the main results found in the survey. Recommendations were proposed in order to mitigate the vulnerabilities of the systems and protect public health. The results demonstrate that the level of treatment is a major vulnerability criteria, as significant differences in the index were related to systems that distribute water without treatment and those with an appropriate treatment technology.
Samuel, Paulo Robinson da Silva. "Alternativas sustentáveis de tratamento de esgotos sanitários urbanos, através de sistemas descentralizados, para municípios de pequeno porte." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/55437.
Повний текст джерелаThe lack of adequate sewage treatment in the country, especially in small municipalities, together with the scarceness of financial resources, requires technological and scientific support, being a major concern and asks for the due attention. The general objective of this work is to propose alternative systems of urban sewage treatment for the municipality of Feliz, a small Brazilian municipality in the State of Rio Grande do Sul, , , aiming at improving the quality of its water resources. The elaboration of this work included a system diagnosis of sewage treatment in the urban area, the assessment of the impact of sewage generated by urban water sources and a proposal for the treatment of sewage systems in a more sustainable way, that meets the emissions standards for effluents , as allowed by legislation, in surface waters. The research strategy adopted in this work was the constructive research, whose methodology was applied in three steps: I) a geographical area delimitation and documental analysis II) a quantitative survey of households, by area, and collection of water samples at three points in the river that crosses the town of Feliz, III) a presentation of proposals for more sustainable sewage systems treatment. In stages II and III a mathematical model, QUAL2K, was applied in the studied stretch of the river, simulating the various conditions of water quality and comparing them with the effluent emissions standards allowed by law, in surface waters. The results showed that the urban area of Feliz presents a very low rate of domestic sewage treatment. The untreated sewage released into the local system of stormwater is the main pollutant of the river in the urban area. The following decentralized systems of sewage treatment were studied: wetlands, anaerobic filter and UASB and septic tank and seepage. The simulation showed that these proposed systems can be effective in order to treat more sustainably the domestic sewage and to reduce the levels of the analyzed parameters, although not reaching the limits established by the legislation for the studied stretch so to enabled it to be framed as being in compliance with the Brazilian legislation and with the wishes of the local community.
Sepúlveda, Toepfer Carlos. "Instrumentation, model identification and control of an experimental irrigation canal." Doctoral thesis, Universitat Politècnica de Catalunya, 2008. http://hdl.handle.net/10803/5951.
Повний текст джерелаThese water transport systems are difficult to manage and present low efficiencies in practice.
As a result, an important percentage of water is lost, maintenance costs increase and water users follow a rigid irrigation schedule.
All these problems can be reduced by automating the operation of irrigation canals.
In order to fulfil the objectives, a laboratory canal, called Canal PAC-UPC, was equipped and instrumented in parallel with the development of this thesis. In general, the methods and solutions proposed herein were extensively tested in this canal.
In a broader context, three main contributions in different irrigation canal control areas are presented.
Focusing on gate-discharge measurements, many submerged-discharge calculation methods are tested and compared using Canal PAC-UPC measurement data. It has been found that most of them present errors around ±10%, but there are notable exceptions. Specifically, using classical formulas with a constant 0.611 contraction value give very good results (error<±6%), but when data is available, a very simple calibration formula recently proposed in the literature significantly outperform the rest (error<±3%). As a consequence, the latter is encouragingly proposed as the basis of any gate discharge controller.
With respect to irrigation canal modeling, a detailed procedure to obtain data-driven linear irrigation canal models is successfully developed. These models do not use physical parameters of the system, but are constructed from measurement data. In this case, these models are thought to be used in irrigation canal control issues like controller tuning, internal controller model in predictive controllers or simply as fast and simple simulation platforms. Much effort is employed in obtaining an adequate model structure from the linearized Saint-Venant equations, yielding to a mathematical procedure that verifies the existence of an integrator pole in any type of canal working under any hydraulic condition. Time-domain and frequency-domain results demonstrate the accuracy of the resulting models approximating a canal working around a particular operation condition both in simulation and experiment.
Regarding to irrigation canal control, two research lines are exploited. First, a new water level control scheme is proposed as an alternative between decentralized and centralized control. It is called Semi-decentralized scheme and aims to resemble the centralized control performance while maintaining an almost decentralized structure. Second, different water level control schemes based on PI control and Predictive control are studied and compared. The simulation and laboratory results show that the response and performance of this new strategy against offtake discharge changes, are almost identical to the ones of the centralized control, outperforming the other tested schemes based on PI control and on Predictive control. In addition, it is verified that schemes based on Predictive control with good controller models can counteract offtake discharge variations with less level deviations and in almost half the time than PI-based schemes.
In addition to these three main contributions, many other smaller developments, minor results and practical recommendations for irrigation canal automation are presented throughout this thesis.
Faragher, Tamsin. "Sustainable water governance: An incremental approach towards a decentralised, hybrid water system." Master's thesis, University of Cape Town, 2018. http://hdl.handle.net/11427/29658.
Повний текст джерелаChung, Gunhui. "Water Supply System Management Design and Optimization under Uncertainty." Diss., The University of Arizona, 2007. http://hdl.handle.net/10150/195506.
Повний текст джерелаBorders, Michael Tyler. "An Analysis of Emergent Behavior in the North Dakota Water Depot-Based Water Allocation System using a Decentralized Agent-Based Modeling (ABM) Approach." Thesis, North Dakota State University, 2016. https://hdl.handle.net/10365/28273.
Повний текст джерелаКниги з теми "Decentralized water systems"
United States. Environmental Protection Agency. Office of Wastewater Management., ed. Onsite and clustered (decentralized) wastewater treatment systems: Informational materials. Washington, D.C: U.S. Environmental Protection Agency, 2003.
Знайти повний текст джерелаLee, Juneseok, Tamim Younos, and Tammy E. Parece. Resilient Water Management Strategies in Urban Settings: Innovations in Decentralized Water Infrastructure Systems. Springer International Publishing AG, 2022.
Знайти повний текст джерелаUnited States. Environmental Protection Agency. Office of Water. and United States. Environmental Protection Agency. Office of Wastewater Management., eds. Response to congress on use of decentralized wastewater treatment systems. Washington, D.C: U.S. Environmental Protection Agency, Office of Water, 1997.
Знайти повний текст джерелаResponse to congress on use of decentralized wastewater treatment systems. Washington, D.C: U.S. Environmental Protection Agency, Office of Water, 1997.
Знайти повний текст джерелаUnited States. Environmental Protection Agency. Office of Water., ed. Handbook for managing onsite and clustered (decentralized) wastewater treatment systems: An introduction to management tools and information for implementing EPA's management guidelines. [Washington, D.C.]: The Office, 2005.
Знайти повний текст джерелаЧастини книг з теми "Decentralized water systems"
Siegrist, Robert L. "Alternative Wastewater Collection and Conveyance Systems for Decentralized Applications." In Decentralized Water Reclamation Engineering, 181–236. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-40472-1_5.
Повний текст джерелаChae, Sookwon, and Juneseok Lee. "Smart Decentralized Water Systems in South Korea." In Springer Water, 31–46. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-95844-2_3.
Повний текст джерелаLee, Juneseok, Tamim Younos, and Tammy E. Parece. "Decentralized Green Water-Infrastructure Systems: Resilient and Sustainable Management Strategies for Building Water Systems." In Springer Water, 1–20. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-95844-2_1.
Повний текст джерелаPhilip, Ligy, C. Ramprasad, and D. Krithika. "Sustainable Wastewater Management Through Decentralized Systems: Case Studies." In Water Scarcity and Ways to Reduce the Impact, 15–45. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-75199-3_2.
Повний текст джерелаMeney, Kathy A., and Ljiljana Pantelic. "Decentralized Water and Wastewater Systems for Resilient Societies: A Shift Towards a Green Infrastructure-Based Alternate Economy." In The Palgrave Handbook of Climate Resilient Societies, 1–29. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-32811-5_32-1.
Повний текст джерелаLeise, Philipp, and Lena C. Altherr. "Optimizing the Design and Control of Decentralized Water Supply Systems – A Case-Study of a Hotel Building." In EngOpt 2018 Proceedings of the 6th International Conference on Engineering Optimization, 1241–52. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-97773-7_107.
Повний текст джерелаMeney, Kathy A., and Ljiljana Pantelic. "Decentralized Water and Wastewater Systems for Resilient Societies: A Shift Towards a Green Infrastructure-Based Alternate Economy." In The Palgrave Handbook of Climate Resilient Societies, 157–84. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-42462-6_32.
Повний текст джерелаChiu, Pei C. "Applications of Zero-Valent Iron (ZVI) and Nanoscale ZVI to Municipal and Decentralized Drinking Water Systems—A Review." In ACS Symposium Series, 237–49. Washington, DC: American Chemical Society, 2013. http://dx.doi.org/10.1021/bk-2013-1123.ch014.
Повний текст джерелаWinklmaier, J., and S. Bazan Santos. "Promoting Rural Electrification in Sub-Saharan Africa: Least-Cost Modelling of Decentralized Energy-Water-Food Systems: Case Study of St. Rupert Mayer, Zimbabwe." In Springer Proceedings in Energy, 71–89. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-93438-9_6.
Повний текст джерелаde Graaf, Florijn, and Simon Goddek. "Smarthoods: Aquaponics Integrated Microgrids." In Aquaponics Food Production Systems, 379–92. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-15943-6_15.
Повний текст джерелаТези доповідей конференцій з теми "Decentralized water systems"
Pepper, I., R. Arnold, G. Bayraksan, C. Choi, K. Lansey, and C. Scott. "Conjunctive Decentralized Dual Water Distribution Systems." In Water Distribution Systems Analysis 2008. Reston, VA: American Society of Civil Engineers, 2009. http://dx.doi.org/10.1061/41024(340)8.
Повний текст джерелаSitzenfrei, Robert, Jonatan Zischg, Markus Sitzmann, Suranji Rathnayaka, Jayantha Kodikara, and Peter M. Bach. "Effects of Implementing Decentralized Water Supply Systems in Existing Centralized Systems." In World Environmental and Water Resources Congress 2017. Reston, VA: American Society of Civil Engineers, 2017. http://dx.doi.org/10.1061/9780784480625.064.
Повний текст джерелаRogers, Peter D., and Neil S. Grigg. "Alternative Approaches for Water Distribution: Dual and Decentralized Systems." In World Environmental and Water Resources Congress 2007. Reston, VA: American Society of Civil Engineers, 2007. http://dx.doi.org/10.1061/40927(243)466.
Повний текст джерелаHranova, R. "Sustainable Approaches to Decentralized Wastewater Systems with Emphasis on Developing Countries in Semi-Arid Regions." In Water Resource Management. Calgary,AB,Canada: ACTAPRESS, 2010. http://dx.doi.org/10.2316/p.2010.686-073.
Повний текст джерелаBaghaei Lakeh, Reza, Daniel Andrade, Kyle J. Miller, Bowen Du, Joshua Pham, Mohammad M. Modabernia, Pui Y. Ng, et al. "A Case Study of Decentralized Off-Grid Water Treatment Using Reverse Osmosis." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-70828.
Повний текст джерелаBen A Asquith, Joe H Whitehead, and Luke J Kidd. "Quantitative Risk Assessment of Decentralized Wastewater Management Systems in a Drinking Water Catchment." 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/10.13031/2013.24000.
Повний текст джерелаBottura, C. P., and A. F. T. Ceceres. "Decentralized control of serial interconnected systems for river water quality via subspace identification." In Proceedings of 2002 American Control Conference. IEEE, 2002. http://dx.doi.org/10.1109/acc.2002.1025307.
Повний текст джерелаKane, Michael B., Jerome P. Lynch, and Andrew T. Zimmerman. "Decentralized agent-based control of chilled water plants using wireless sensor and actuator networks." In 2011 4th International Symposium on Resilient Control Systems (ISRCS). IEEE, 2011. http://dx.doi.org/10.1109/isrcs.2011.6016104.
Повний текст джерелаDotsch, Florian, Jorg Denzinger, Holger Kasinger, and Bernhard Bauer. "Decentralized Real-Time Control of Water Distribution Networks Using Self-Organizing Multi-agent Systems." In 2010 4th IEEE International Conference on Self-Adaptive and Self-Organizing Systems (SASO). IEEE, 2010. http://dx.doi.org/10.1109/saso.2010.20.
Повний текст джерелаRomanov, Roman V., Oleg R. Kuzichkin, and Alexey V. Tsaplev. "Geoecological control of the aquifer in the decentralized water supply systems of the local level." In 2015 IEEE 8th International Conference on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications (IDAACS). IEEE, 2015. http://dx.doi.org/10.1109/idaacs.2015.7340698.
Повний текст джерела