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The objective of this project was to examine the process and design implications associated with the integration of membranes into existing water treatment plants and process schemes. Membrane technologies covered include microfiltration ( MF ), ultrafiltration ( UF ), nanofiltration ( NF ), and reverse osmosis ( RO ).
Increasingly, utilities are using membrane technology to solve a wide array of water treatment challenges. The current state of knowledge regarding different aspects of membrane integration is thought to be in development, as evidenced by the continued research efforts by utilities, manufacturers, engineers, and academia. The water industry lacks specific guidance on how membranes can be integrated into a treatment process to improve treatment or capacity. The findings of this project focused on key issues of membrane integration: the benefits of pilot testing and planning, design considerations, and operation and maintenance needs. All of the participating utilities conducted pilot evaluations of membrane technologies and some continued those studies after commissioning to optimize system performance.Several of the participating utilities embarked on a comprehensive planning and approval program, which included community outreach efforts, budget planning, and scheduling for pilot testing before design. In terms of design considerations, many of the utilities experienced unique design challenges that were specific to the system being installed.
Proceedings of the 2006 AWWA Annual Conference and Exposition held June 2006 in San Antonio TX CD-ROM provides current information on all aspects of drinking water Topics include water quality water resources and conservation water utility security water utility vulnerability assessments conventional and advanced water treatment desalination water reclamation and reuse water transmission and distribution system infrastructure water utility management water plant operations privatization and competition automation regulations benchmarking
This ready reference on Membrane Technologies for Water Treatment, is an invaluable source detailing sustainable, emerging processes, to provide clean, energy saving and cost effective alternatives to conventional processes. The editors are internationally renowned leaders in the field, who have put together a first-class team of authors from academia and industry to present a highly approach to the subject. The book is an instrumental tool for Process Engineers, Chemical Engineers, Process Control Technicians, Water Chemists, Environmental Chemists, Materials Scientists and Patent Lawyers.
With global demand for water in the 20th century expected to increase ten-fold, this work focuses on the membrane filtration issues for drinking water.
This book provides comprehensive description of polymeric membranes in water treatment and remediation. It describes both the sustainability challenges and new opportunities to use membranes for water decontamination. It also discusses the environmental-related issues, challenges and advantages of using membrane-based systems and provides comprehensive description of various polymeric membranes, nanomaterials, biomolecules and their integrated systems for wastewater treatment. Various topics covered in this book are direct pressure-driven and osmotic-driven membrane processes, hybrid membrane processes (such as membrane bioreactors and integrating membrane separation with other processes), and resource recovery-oriented membrane-based processes. The book will be useful for students, researchers and professionals working in the area of materials science and environmental chemistry.
Microfiltration and ultrafiltration (MF/UF) have evolved into widely accepted methods of water filtration and disinfection. Their evolution from industrial applications began with filtration of clean water supplies not requiring pretreatment to use on waters requiring significant treatment prior to filtration. Cost and system design innovations have led to the increase in the size of MF/UF facilities. In recent years, retrofits of granular media filtration facilities with MF/UF have been explored by researchers, engineers, and system vendors in order to reduce the cost of implementing the technology. Several examples of retrofit facilities with varying degrees of existing infrastructure reuse exist; however, many of the retrofit projects do not reuse equipment common to both MF/UF and granular media filters. The objective of this project was to investigate potential cost-saving infrastructure reuse options for membrane retrofits of granular media filtration cells. Of key interest was the feasibility of retrofitting granular media filter cells with membranes operating within the hydraulic gradeline of the plant, essentially a direct exchange of media filtration with membrane filtration. Originally published by AwwaRF for its subscribers in 2004.
Electrochemical Water Treatment Methods provides the fundamentals and applications of electrochemical water treatment methods to treat industrial effluents. Sections provide an overview of the technology, its current state of development, and how it is making its way into industry applications. Other sections deal with historical developments and the fundamentals of 18 methods, including coupled methods, such as Electrocoagulation, Peroxi-Coagulation and Electro-Fenton treatments. In addition, users will find discussions that relate to industries such as Pulp and Paper, Pharmaceuticals, Textiles, and Urban/Domestic wastewater, amongst others. Final sections present advantages, disadvantages and ways to combine renewable energy sources and electrochemical methods to design sustainable facilities. Environmental and Chemical Engineers will benefit from the extensive collection of methods and industry focused application cases, but researchers in environmental chemistry will also find interesting examples on how methods can be transitioned from lab environments to practical applications. Offers an excellent overview of the research advances and current applications of electrochemical technologies for water treatment Explains, in a comprehensive way, the fundamentals of different electrochemical uses and applications of different technologies Provides a large number of examples as evidence of practical applications of electrochemistry to environmental protection Explores the combination possibilities with other treatment technologies or emerging technologies for destroying water pollutants
The complex dimensions of the Mediterranean freshwater resources, their fragility and their scarcity have been highlighted and have received considerable attention as a primary priority issue politically, technically and scientifically. Membrane technology, with its different applications in water treatment (desalination, potable water treatment, wastewater treatment and reuse) has showed to be a powerful tool to abate the water crisis in the Mediterranean region. The primary objective of Membrane Technology in Water Treatment in the Mediterranean Region is to support the current research and development activities in membrane technology focused on water treatment in the Mediterranean area, providing an international stage to local research organisations and universities devoted to the development of membrane technologies in the following areas: municipal and industrial wastewater treatment, surface water purification and brackish and sea water treatment for drinking purpose. It covers the identification, mapping and evaluation of the on-going research, in order to propose future research and co-operation strategies. Visit the IWA WaterWiki to read and share material related to this title: http://www.iwawaterwiki.org/xwiki/bin/view/Articles/MembraneTechnologyinWaterTreatmentintheMediterraneanRegion
Presenting a useful reference to the current state of membrane technology and its likely future growth, this book covers all aspects of the technology and its applications in the water industry. Drawing on the experience of international experts, Membrane Technology in Water and Wastewater Treatment encompasses many practical applications of specific membranes, including MF, UF, NF, RO and EDR, in the treatment of ground and surface water, backwash water, seawater, and industrial and domestic wastewater. Novel applications, process enhancements and the latest systems are also discussed. This book is an excellent guide to membrane technology and will be of great interest to water companies, industrialists, legislative bodies and anyone with an interest in the technology or its applications.