Solutions For Improving Water Quality

Author : Zaid K. Chowdhury
Publisher : American Water Works Association
Page : 353 pages
File Size : 42,6 Mb
Release : 2013
Category : Technology & Engineering
ISBN : 9781583219072

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Activated Carbon by Zaid K. Chowdhury Pdf

"Many books have been written about granular activated carbon. Some focus on the theory of performance and removal mechanisms while others focus on design features. This book focuses on solutions. It describes the challenges facing water providers to provide safe water that is acceptable to their customers, utility experiences using activated carbon, activated carbon applications, and design and procurement approaches. The appendices include detailed case studies and a life-cycle assessment demonstrating favorable sustainability considerations for activated carbon when compared to other treatment technologies. Never before has all of this information been together in one location. The what, why, and how of activated carbon are connected in this book and demonstrate why this treatment technology has maintained its status as an integral treatment technology in the quest for pure water over millennia"--

Author : National Research Council,Division on Earth and Life Studies,Water Science and Technology Board,Committee on Water Quality Improvement for the Pittsburgh Region
Publisher : National Academies Press
Page : 294 pages
File Size : 54,8 Mb
Release : 2005-04-04
Category : Nature
ISBN : 9780309181310

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Regional Cooperation for Water Quality Improvement in Southwestern Pennsylvania by National Research Council,Division on Earth and Life Studies,Water Science and Technology Board,Committee on Water Quality Improvement for the Pittsburgh Region Pdf

The city of Pittsburgh and surrounding area of southwestern Pennsylvania face complex water quality problems, due in large part to aging wastewater infrastructures that cannot handle sewer overflows and stormwater runoff, especially during wet weather. Other problems such as acid mine drainage are a legacy of the region's past coal mining, heavy industry, and manufacturing economy. Currently, water planning and management in southwestern Pennsylvania is highly fragmented; federal and state governments, 11 counties, hundreds of municipalities, and other entities all play roles, but with little coordination or cooperation. The report finds that a comprehensive, watershed-based approach is needed to effectively meet water quality standards throughout the region in the most cost-effective manner. The report outlines both technical and institutional alternatives to consider in the development and implementation of such an approach.

Author : Satinder Ahuja
Publisher : Academic Press
Page : 412 pages
File Size : 50,8 Mb
Release : 2009-07-17
Category : Technology & Engineering
ISBN : 0080921124

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Handbook of Water Purity and Quality by Satinder Ahuja Pdf

This work provides those involved in water purification research and administration with a comprehensive resource of methods for analyzing water to assure its safety from contaminants, both natural and human caused. The book first provides an overview of major water-related issues in developing and developed countries, followed by a review of issues of sampling for water analysis, regulatory considerations and forensics in water quality and purity investigations. The subsequent chapters cover microbial as well chemical contaminations from inorganic compounds, radionuclides, volatile and semi-volatile compounds, disinfectants, herbicides, and pharmaceuticals, including endocrine disruptors, as well as potential terrorist-related contamination. The last chapter describes the Grainger prize-winning filter that can remove arsenic from water sources and sufficiently protect the health of a large number of people. - Covers the scope of water contamination problems on a worldwide scale - Provides a rich source of methods for analyzing water to assure its safety from natural and deliberate contaminants - Describes the filter that won the $1 million Grainger prize and thereby highlighting an important approach to remediation

Author : National Research Council,Board on Agriculture,Committee on Long-Range Soil and Water Conservation Policy
Publisher : National Academies Press
Page : 541 pages
File Size : 49,6 Mb
Release : 1993-02-01
Category : Technology & Engineering
ISBN : 9780309049337

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Soil and Water Quality by National Research Council,Board on Agriculture,Committee on Long-Range Soil and Water Conservation Policy Pdf

How can the United States meet demands for agricultural production while solving the broader range of environmental problems attributed to farming practices? National policymakers who try to answer this question confront difficult trade-offs. This book offers four specific strategies that can serve as the basis for a national policy to protect soil and water quality while maintaining U.S. agricultural productivity and competitiveness. Timely and comprehensive, the volume has important implications for the Clean Air Act and the 1995 farm bill. Advocating a systems approach, the committee recommends specific farm practices and new approaches to prevention of soil degradation and water pollution for environmental agencies. The volume details methods of evaluating soil management systems and offers a wealth of information on improved management of nitrogen, phosphorus, manure, pesticides, sediments, salt, and trace elements. Landscape analysis of nonpoint source pollution is also detailed. Drawing together research findings, survey results, and case examples, the volume will be of interest to federal, state, and local policymakers; state and local environmental and agricultural officials and other environmental and agricultural specialists; scientists involved in soil and water issues; researchers; and agricultural producers.

Author : National Research Council,Commission on Geosciences, Environment, and Resources,Water Science and Technology Board,Ocean Studies Board,Committee on the Causes and Management of Coastal Eutrophication
Publisher : National Academies Press
Page : 422 pages
File Size : 42,5 Mb
Release : 2000-08-17
Category : Science
ISBN : 9780309069489

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Clean Coastal Waters by National Research Council,Commission on Geosciences, Environment, and Resources,Water Science and Technology Board,Ocean Studies Board,Committee on the Causes and Management of Coastal Eutrophication Pdf

Environmental problems in coastal ecosystems can sometimes be attributed to excess nutrients flowing from upstream watersheds into estuarine settings. This nutrient over-enrichment can result in toxic algal blooms, shellfish poisoning, coral reef destruction, and other harmful outcomes. All U.S. coasts show signs of nutrient over-enrichment, and scientists predict worsening problems in the years ahead. Clean Coastal Waters explains technical aspects of nutrient over-enrichment and proposes both immediate local action by coastal managers and a longer-term national strategy incorporating policy design, classification of affected sites, law and regulation, coordination, and communication. Highlighting the Gulf of Mexico's "Dead Zone," the Pfiesteria outbreak in a tributary of Chesapeake Bay, and other cases, the book explains how nutrients work in the environment, why nitrogen is important, how enrichment turns into over-enrichment, and why some environments are especially susceptible. Economic as well as ecological impacts are examined. In addressing abatement strategies, the committee discusses the importance of monitoring sites, developing useful models of over-enrichment, and setting water quality goals. The book also reviews voluntary programs, mandatory controls, tax incentives, and other policy options for reducing the flow of nutrients from agricultural operations and other sources.

Author : Geneviève M. Carr,James P. Neary
Publisher : UNEP/Earthprint
Page : 132 pages
File Size : 51,8 Mb
Release : 2008
Category : Business & Economics
ISBN : 9295039513

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Water Quality for Ecosystem and Human Health by Geneviève M. Carr,James P. Neary Pdf

This document is intended to provide an overview of the major components of surface and ground water quality and how these relate to ecosystem and human health. Local, regional and global assessments of water quality monitoring data are used to illustrate key features of aquatic environments, and to demonstrate how human activities on the landscape can influence water quality in both positive and negative ways. Clear and concise background knowledge on water quality can serve to support other water assessments.

Author : Organisation for Economic Co-Operation and Development (OECD)
Publisher : IWA Publishing
Page : 122 pages
File Size : 52,7 Mb
Release : 2017-06-15
Category : Science
ISBN : 9781780408781

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Diffuse Pollution, Degraded Waters: emerging policy solutions by Organisation for Economic Co-Operation and Development (OECD) Pdf

After decades of regulation and investment to reduce point source water pollution, OECD countries still face water quality challenges (e.g. eutrophication) from diffuse agricultural and urban sources of pollution, that is disperse pollution from surface runoff, soil filtration and atmospheric deposition. The relative lack of progress reflects the complexities of controlling multiple pollutants from multiple sources, their high spatial and temporal variability, associated transactions costs, and limited political acceptability of regulatory measures. This report outlines the water quality challenges facing OECD countries today, presents a range of policy instruments and innovative case studies of diffuse pollution control, and concludes with an integrated policy framework to tackle diffuse water pollution. An optimal approach will likely entail a mix of policy interventions reflecting the basic OECD principles of water quality management – pollution prevention, treatment at source, the polluter pays and beneficiary pays principles, equity, and policy coherence.

Author : Anita Street,Richard Sustich,Jeremiah Duncan,Nora Savage
Publisher : William Andrew
Page : 704 pages
File Size : 52,8 Mb
Release : 2014-05-15
Category : Technology & Engineering
ISBN : 9781455731855

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Nanotechnology Applications for Clean Water by Anita Street,Richard Sustich,Jeremiah Duncan,Nora Savage Pdf

Nanotechnology is already having a dramatic impact on improving water quality and the second edition of Nanotechnology Applications for Clean Water highlights both the challenges and the opportunities for nanotechnology to positively influence this area of environmental protection. This book presents detailed information on cutting-edge technologies, current research, and trends that may impact the success and uptake of the applications. Recent advances show that many of the current problems with water quality can be addressed using nanosorbents, nanocatalysts, bioactive nanoparticles, nanostructured catalytic membranes, and nanoparticle enhanced filtration. The book describes these technologies in detail and demonstrates how they can provide clean drinking water in both large scale water treatment plants and in point-of-use systems. In addition, the book addresses the societal factors that may affect widespread acceptance of the applications. Sections are also featured on carbon nanotube arrays and graphene-based sensors for contaminant sensing, nanostructured membranes for water purification, and multifunctional materials in carbon microspheres for the remediation of chlorinated hydrocarbons. Addresses both the technological aspects of delivering clean water supplies and the societal implications that affect take-up Details how the technologies are applied in large-scale water treatment plants and in point-of-use systems Highlights challenges and the opportunities for nanotechnology to positively influence this area of environmental protection

Author : WWAP
Publisher : UNESCO Publishing
Page : 154 pages
File Size : 42,6 Mb
Release : 2018-03-26
Category : Water quality management
ISBN : 9789231002649

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The United Nations world water development report 2018 by WWAP Pdf

Author : Patrick Sullivan,Franklin J. Agardy,James J.J. Clark
Publisher : Elsevier
Page : 384 pages
File Size : 42,5 Mb
Release : 2005-08-01
Category : Technology & Engineering
ISBN : 9780080457727

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The Environmental Science of Drinking Water by Patrick Sullivan,Franklin J. Agardy,James J.J. Clark Pdf

In today’s chemically dependent society, environmental studies demonstrate that drinking water in developed countries contains numerous industrial chemicals, pesticides, pharmaceuticals and chemicals from water treatment processes. This poses a real threat. As a result of the ever-expanding list of chemical and biochemical products industry, current drinking water standards that serve to preserve our drinking water quality are grossly out of date. Environmental Science of Drinking Water demonstrates why we need to make a fundamental change in our approach toward protecting our drinking water. Factual and circumstantial evidence showing the failure of current drinking water standards to adequately protect human health is presented along with analysis of the extent of pollution in our water resources and drinking water. The authors also present detail of the currently available state-of-the-art technologies which, if fully employed, can move us toward a healthier future. * Addresses the international problems of outdated standards and the overwhelming onslaught of new contaminants. * Includes new monitoring data on non-regulated chemicals in water sources and drinking water. * Includes a summary of different bottled waters as well as consumer water purification technologies.

Author : C. Ray,G. Melin,R.B. Linsky
Publisher : Springer Science & Business Media
Page : 402 pages
File Size : 52,5 Mb
Release : 2003-12-31
Category : Technology & Engineering
ISBN : 140201838X

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Riverbank Filtration by C. Ray,G. Melin,R.B. Linsky Pdf

Chittaranjan Ray, Ph. D. , P. E. University of Hawaii at Mãnoa Honolulu, Hawaii, United States Jürgen Schubert, M. Sc. Stadtwerke Düsseldorf AG Düsseldorf, Germany Ronald B. Linsky National Water Research Institute Fountain Valley, California, United States Gina Melin National Water Research Institute Fountain Valley, California, United States 1. What is Riverbank Filtration? The purpose ofthis book is to show that riverbank filtration (RBF) isa low-cost and efficient alternative water treatment for drinking-water applications. There are two immediate benefits to the increased use of RBF: Minimized need for adding chemicals like disinfectants and coagulants to surface water to control pathogens. Decreased costs to the community without increased risk to human health. Butwhat,exactly, isRBF? In humid regions, river water naturally percolates through the ground into aquifers (which are layers of sand and gravel that contain water underground) during high-flow conditions. In arid regions, most rivers lose flow, and the percolating water passes through soil and aquifer material until it reaches the water table. During these percolation processes, potential contaminants present in river water are filtered and attenuated. If there are no other contaminants present in the aquifer or ifthe respective contaminants are present at lower concentrations, the quality of water in the aquifer can be ofhigher quality than that found in theriver. In RBF, production wells — which are placed near the banks ofrivers —pump large quantities ofwater.

Author : Institute of Medicine,Board on Global Health,Forum on Microbial Threats
Publisher : National Academies Press
Page : 328 pages
File Size : 54,7 Mb
Release : 2009-10-25
Category : Medical
ISBN : 9780309138727

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Global Issues in Water, Sanitation, and Health by Institute of Medicine,Board on Global Health,Forum on Microbial Threats Pdf

As the human population grows-tripling in the past century while, simultaneously, quadrupling its demand for water-Earth's finite freshwater supplies are increasingly strained, and also increasingly contaminated by domestic, agricultural, and industrial wastes. Today, approximately one-third of the world's population lives in areas with scarce water resources. Nearly one billion people currently lack access to an adequate water supply, and more than twice as many lack access to basic sanitation services. It is projected that by 2025 water scarcity will affect nearly two-thirds of all people on the planet. Recognizing that water availability, water quality, and sanitation are fundamental issues underlying infectious disease emergence and spread, the Institute of Medicine held a two-day public workshop, summarized in this volume. Through invited presentations and discussions, participants explored global and local connections between water, sanitation, and health; the spectrum of water-related disease transmission processes as they inform intervention design; lessons learned from water-related disease outbreaks; vulnerabilities in water and sanitation infrastructure in both industrialized and developing countries; and opportunities to improve water and sanitation infrastructure so as to reduce the risk of water-related infectious disease.

Author : Gheorghe Duca
Publisher : Springer
Page : 241 pages
File Size : 41,9 Mb
Release : 2014-07-08
Category : Technology & Engineering
ISBN : 9783319027081

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Management of Water Quality in Moldova by Gheorghe Duca Pdf

This book deals with water management, one of the most challenging issues of contemporary society. Research and innovation in the field of water management must address certain fundamental aspects: access to water, water quality, water treatment, transboundary effect of water, etc. A comprehensive analysis was performed in a national research program of Moldova, entitled “Research and management of water quality”. The main goal of the research program was to create and improve the legal, scientific and methodological, technological basis and sustainable development of water, implementation of modern technologies in water supply, treatment and reuse. Other priorities include expansion of access to water sources, improvement of environmental protection, especially water protection against pollution and depletion, efficient water use and establishing an effective monitoring system for disaster prevention. The topics concern research of water structure and quality, surface water, groundwater, water treatment, irrigation technologies and water pollution by remains from industry, one of the main environmental problems of our time. The book helps to get to coherent water policies of states.

Author : World Health Organization
Publisher : World Health Organization
Page : 260 pages
File Size : 51,8 Mb
Release : 1993
Category : Medical
ISBN : 9241545038

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Guidelines for Drinking-water Quality by World Health Organization Pdf

This volume describes the methods used in the surveillance of drinking water quality in the light of the special problems of small-community supplies, particularly in developing countries, and outlines the strategies necessary to ensure that surveillance is effective.

Author : United States. Congress. House. Committee on Public Works and Transportation. Subcommittee on Oversight and Review
Publisher : Unknown
Page : 1072 pages
File Size : 54,5 Mb
Release : 1979
Category : Nonpoint source pollution
ISBN : LOC:00183656764

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Implementation of the Federal Water Pollution Control Act (nonpoint Pollution and the Areawide Waste Treatment Management Program) by United States. Congress. House. Committee on Public Works and Transportation. Subcommittee on Oversight and Review Pdf