Download or read book Planning the Rehabilitation of Water Distribution Systems written by and published by . This book was released on 1989 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Drinking Water Distribution Systems written by National Research Council and published by National Academies Press. This book was released on 2007-01-22 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: Protecting and maintaining water distributions systems is crucial to ensuring high quality drinking water. Distribution systems-consisting of pipes, pumps, valves, storage tanks, reservoirs, meters, fittings, and other hydraulic appurtenances-carry drinking water from a centralized treatment plant or well supplies to consumers' taps. Spanning almost 1 million miles in the United States, distribution systems represent the vast majority of physical infrastructure for water supplies, and thus constitute the primary management challenge from both an operational and public health standpoint. Recent data on waterborne disease outbreaks suggest that distribution systems remain a source of contamination that has yet to be fully addressed. This report evaluates approaches for risk characterization and recent data, and it identifies a variety of strategies that could be considered to reduce the risks posed by water-quality deteriorating events in distribution systems. Particular attention is given to backflow events via cross connections, the potential for contamination of the distribution system during construction and repair activities, maintenance of storage facilities, and the role of premise plumbing in public health risk. The report also identifies advances in detection, monitoring and modeling, analytical methods, and research and development opportunities that will enable the water supply industry to further reduce risks associated with drinking water distribution systems.
Download or read book CARE W written by Sveinung Saegrov and published by IWA Publishing. This book was released on 2005-08-31 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: CARE-W was a joint European initiative to develop a framework for water network rehabilitation. The project was supported by the European Commission under the Fifth Framework Programme for Research and Development. The aim of CARE-W was to support European water companies in their decisions on upgrading their water supply. The system has been developed for and tested by cities representing all parts of Europe. CARE-W consists of software dealing with fundamental instruments for estimating the current and future condition of water networks, including tools to assess performance indicators (PI), to predict pipe failures (FAIL) and to calculate water supply reliability (REL). Based on the results of these tools, annual rehabilitation projects are selected and ranked (ARP tool). Information of network is further used for the estimation of long-term investments needs (LTP). The tools are operated jointly within the "CARE-W Manager", which also contains facilities for using pipe network databases, geographical information systems (GIS) and input/output routines. The results from using the procedures are presented by reports, in tables and graphically. Aimed at planning engineers, water utilities and municipalities and consultants working in the increasingly growing field of the planning of rehabilitation of water networks in cities.
Download or read book Rehabilitation of Water Mains written by American Water Works Association and published by American Water Works Association. This book was released on 2001 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: P. 16.
Download or read book Deterioration and Optimal Rehabilitation Modelling for Urban Water Distribution Systems written by Yi Zhou and published by CRC Press. This book was released on 2018-05-03 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pipe failures in water distribution systems can have a serious impact and hence it’s important to maintain the condition and integrity of the distribution system. This book presents a whole-life cost optimisation model for the rehabilitation of water distribution systems. It combines a pipe breakage number prediction model with a pipe criticality assessment model, which enables the creation of a well-constructed and more tightly constrained optimisation model. The pipe breakage number prediction model combines information on the physical characteristics of the pipes with historical information on breakage and failure rates. A weighted multiple nonlinear regression analysis is applied to describe the condition of different pipe groups. The criticality assessment model combines a pipe’s condition with its hydraulic significance through a modified TOPSIS. This model enables the optimisation to focus its efforts on those important pipes. The whole life cost optimal rehabilitation model is a multiple-objective and multiple-stage model, which provides a suite of rehabilitation decisions that minimise the whole life cost while maximising its long-term performance. The optimisation model is solved using a modified NSGA-II. The utility of the developed models is that it allows decision makers to prioritize their rehabilitation strategy in a proactive and cost-effective manner.
Download or read book Planning for the Distribution of Reclaimed Water 3rd Ed M24 written by AWWA Staff and published by American Water Works Association. This book was released on 2011-01-12 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced Hydroinformatic Techniques for the Simulation and Analysis of Water Supply and Distribution Systems written by Manuel Herrera and published by MDPI. This book was released on 2018-07-19 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Advanced Hydroinformatic Techniques for the Simulation and Analysis of Water Supply and Distribution Systems" that was published in Water
Download or read book Safe Piped Water written by Ainsworth R. and published by World Health Organization. This book was released on 2004-09-21 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication addresses the factors affecting the presence and growth of micro-organisms in piped networks as well as the practices of water supply organisations that can directly or indirectly influence them. The book shows that there are often public health reasons for adopting a more proactive approach to many of the traditional practices used in designing, operating and maintaining distribution networks, and to modifying the composition of the water that is fed into those networks.
Download or read book Strategic Asset Management of Water Supply and Wastewater Infrastructures written by Helena Alegre and published by IWA Publishing. This book was released on 2009-09-14 with total page 553 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water and Wastewater companies operating all around the world have faced rising asset management and replacement costs, often to levels that are financially unsustainable. Management of investment needs, while meeting regulatory and other goals, has required: A better understanding of what customers demand from the services they pay for, and the extent to which they are willing to pay for improvements or be compensated for a reduction in performance Development of models to predict asset failure and to identify and concentrate investment on critical assets Improved management systems Improved accounting for costs and benefits and their incorporation within an appropriate cost-benefit framework Incorporation of risk management techniques Utilisation of advanced maintenance techniques including new rehabilitation failure detection technologies Enhancements in pipeline materials, technologies and laying techniques. These papers developed from LESAM 2007 for inclusion in Strategic Asset Management of Water Supply and Wastewater Infrastructures are focused on the techniques, technologies and management approaches aiming at optimising the investment in infrastructure while achieving demanded customer service standards, and they provide an opportunity to gain access to the latest discussion and developments at the leading-edge in this field. This book will be essential reading for utility operators and managers, regulators and consultants.
Download or read book State of Technology for Rehabilitation of Water Distribution Systems written by U S Environmental Protection Agency and published by CreateSpace. This book was released on 2014-08-02 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: The impact that the lack of investment in water infrastructure will have on the performance of aging underground infrastructure over time is well documented and the needed funding estimates range as high as $325 billion over the next 20 years. With the current annual replacement rate averaging 0.5%, pipes would be expected to last for 200 years, but most pipes are designed for 50 or 100 year life cycles. While this replacement rate may be sufficient in the immediate term because pipes are still relatively young, as systems grow older, the necessary replacement rates will inevitably increase. In addition to the necessary funding, congestion above and below ground is making the replacement of water mains more difficult for utility owners as is the lack of public tolerance for the disruption caused by construction work. There is an increasing availability of technologies for rehabilitation of existing pipes, which provides solutions that minimize or alleviate these problems, while providing realistic and potentially cost-effective alternatives to traditional open cut replacement.
Download or read book Advances in Building Services Engineering written by Ioan Sarbu and published by Springer Nature. This book was released on 2021-01-04 with total page 910 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive, systematic overview of original theoretical, experimental, and numerical studies in the building services engineering domain. It brings together different strands of the topic, guided by the two key features of energy savings and reduction of the pollutant emissions. Technical, economic, and energy efficiency aspects related to the design, modelling, optimisation, and operation of diverse building services systems are explored. This book includes various theoretical studies, numerical and optimisation models, experiments, and applications in this field, giving an emphasis to: indoor environment quality assurance; energy analysis, modelling, and optimisation of heating systems; improving the energy performance of refrigeration and air-conditioning systems; valorising the solar and geothermal energies; analysis of thermal energy storage technologies; hydraulic simulation and optimisation of water distribution systems; and improving the energy efficiency of water pumping. With 11 pedagogically structured chapters, containing numerous illustrations, tables, and examples, this book provides researchers, lecturers, engineers, and graduate students with a thorough guide to building service engineering.
Download or read book Improving Efficiency and Reliability in Water Distribution Systems written by Enrique Cabrera and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the lectures given in the International Course "Improving efficiency and reliability in water supply systems", hosted and sponsored by the Menendez Pelayo International University (U.I.M.P.) and co-sponsored by Aguas de Valencia, the British Council and the EC Cornett and Erasmus programmes. The short course took place in Valencia (Spain) in November 1994, with an attendance of more than one hundred delegates. We must not only acknowedge and thank Dr. Joaquin Azagra, as UIMP Director, but also his collaborators D. Luis Moreno and Lidia Lopez for their support in the preparation of the Course and during the course taking place. UIMP sponsorship allowed us to assemble in Valencia an eminent cadre of lecturers coming from all over the world, that covered in an ordered and precise fashion some of the more relevant aspects on efficiency and reliability in water supply systems. We are very thankful to all these leading lecturers for their invaluable cooperation. The publication of this book and the Spanish edition as well, have been made possible thanks to the sponsorship of both Polytechnic University of Valencia througout its Chancellor, Justo Nieto, and Aguas de Valencia throughout its General Director Alvaro Aguirre. We must also thank Kluwer Academic Publishers and especially their Publisher Petra van Steenbergen for her assistance, careful presentation and production of the book.
Download or read book Safe Water From Every Tap written by Committee on Small Water Supply Systems and published by National Academies Press. This book was released on 1997-01-13 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: Small communities violate federal requirements for safe drinking water as much as three times more often than cities. Yet these communities often cannot afford to improve their water service. Safe Water From Every Tap reviews the risks of violating drinking water standards and discusses options for improving water service in small communities. Included are detailed reviews of a wide range of technologies appropriate for treating drinking water in small communities. The book also presents a variety of institutional options for improving the management efficiency and financial stability of water systems.
Download or read book Whole Life Costing for Water Distribution Network Management written by Peter J. Skipworth and published by Thomas Telford. This book was released on 2002 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: This indispensable book presents a unique and robust solution to the problems faced by operators of efficiently investing in deteriorating water distribution networks everywhere. The deterioration of these networks affects the quality of service delivered to customers, as well as increasing costs to the service provider through the decreasing efficiency of the infrastructure. Whole life costing (WLC) aims to achieve the lowest network provisions and operating cost, when all costs are considered to achieve all statutory standards.
Download or read book Water Management Challenges in Global Change written by B. Ulanicki and published by CRC Press. This book was released on 2020-11-26 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water Management Challenges in Global Change contains the proceedings of the 9th Computing and Control for the Water Industry (CCWI2007) and the Sustainable Urban Water Management (SUWM2007) conferences. The rationale behind these conferences is to improve the management of urban water systems through the development of computerbased methods. Issues such as economic globalisation, climate changes and water shortages call for a new approach to water systems management, which addresses the relevant technical, social and economic aspects. This collection represents the views of academic and industrial experts from a number of countries, who provide technical solutions to current water management problems and present a vision for addressing the global questions. The themes underlying many of the contributions include energy and material savings, water savings and the integration of different aspects of water management. The papers are grouped into three themes covering water distribution systems, sustainable urban water management and modelling of wastewater treatment plants. The water distribution topics cover asset and information management, planning, monitoring and control, hydraulic modelling of steady state and transients, water quality and treatment, demand and leakage management, optimisation, design and decision support systems, as well as reliability and security of water distribution systems. The sustainable urban water management topics include urban drainage systems, water reuse, social aspects of water management and also selected facets of water resources and irrigation. Computer control of wastewater treatment plants has been seen as less advanced than that of clean water systems. To address this imbalance, this book presents a number of modelling techniques developed specifically for these plants. Water Management Challenges in Global Change will prove to be invaluable to water and environmental engineering researchers and academics; managers, engineers and planners; and postgraduate students.
Download or read book Water and Wastewater Project Development written by Frank Rendell and published by Thomas Telford. This book was released on 1999 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides instruction and guidance on the evaluation and decision-making processes involved in the conception and realisation of water and wastewater engineering projects. The author also explains methods for financial analysis of project proposals, environmental impact assessment and the management of water projects.
Download or read book Pumps Electromechanical Devices and Systems Applied to Urban Water Management written by Enrique Cabrera and published by Taylor & Francis. This book was released on 2003 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
