Drinking Water and Health,

Author: Safe Drinking Water Committee,Board on Toxicology and Environmental Health Hazards,Commission on Life Sciences,Division on Earth and Life Studies,National Research Council

Publisher: National Academies Press

ISBN: 0309554926

Category: Science

Page: 449

View: 2639

The most recent volume in the Drinking Water and Health series contains the results of a two-part study on the toxicity of drinking water contaminants. The first part examines current practices in risk assessment, identifies new noncancerous toxic responses to chemicals found in drinking water, and discusses the use of pharmacokinetic data to estimate the delivered dose and response. The second part of the book provides risk assessments for 14 specific compounds, 9 presented here for the first time.

Securing Water and Wastewater Systems

Global Experiences

Author: Robert M. Clark,Simon Hakim

Publisher: Springer Science & Business Media

ISBN: 3319010921

Category: Technology & Engineering

Page: 398

View: 824

Urban water and wastewater systems have an inherent vulnerability to both manmade and natural threats and disasters including droughts, earthquakes and terrorist attacks. It is well established that natural disasters including major storms, such as hurricanes and flooding, can effect water supply security and integrity. Earthquakes and terrorist attacks have many characteristics in common because they are almost impossible to predict and can cause major devastation and confusion. Terrorism is also a major threat to water security and recent attention has turned to the potential that these attacks have for disrupting urban water supplies. There is a need to introduce the related concept of Integrated Water Resources Management which emphasizes linkages between land-use change and hydrological systems, between ecosystems and human health, and between political and scientific aspects of water management. An expanded water security agenda should include a conceptual focus on vulnerability, risk, and resilience; an emphasis on threats, shocks, and tipping points; and a related emphasis on adaptive management given limited predictability. Internationally, concerns about water have often taken a different focus and there is also a growing awareness, including in the US, that water security should include issues related to quantity, climate change, and biodiversity impacts, in addition to terrorism. This presents contributions from a group of internationally recognized experts that attempt to address the four areas listed above and includes suggestions as to how to deal with related problems. It also addresses the new and potentially growing issue of cyber attacks against water and waste water infrastructure including descriptions of actual attacks, making it of interest to scholars and policy-makers concerned with protecting the water supply.

Safe Piped Water

Managing Microbial Water Quality in Piped Distribution Systems

Author: Ainsworth R.

Publisher: World Health Organization

ISBN: 924156251X

Category: Business & Economics

Page: 147

View: 7386

The development of pressurized pipe networks for supplying drinking-water to individual dwellings buildings and communal taps is an important component in the continuing development and health of many communities. This publication considers the introduction of microbial contaminants and growth of microorganisms in distribution networks and the practices that contribute to ensuring drinking-water safety in piped distribution systems.

Environmental Engineering

Proceedings of the 2nd National Congress on Environmental Engineering, 4-8 September 2005

Author: Lucjan Pawlowski,Marzenna R. Dudzinska,Artur Pawlowski

Publisher: CRC Press

ISBN: 9780415408189

Category: Science

Page: 536

View: 4970

Environmental engineering protects the conditions of a safe environment, its role being crucial in eliminating ecological threats. It has an interdisciplinary character, utilising principles from biology, chemistry, biochemistry and physics to neutralize pollutants in all facets of the environment. Environmental engineering deals with a wide range of technical and technological problems, including the design and maintenance of water supply, sewage disposal, heating, ventilation and air-conditioning in buildings. This proceedings aims to assess the state of scientific research in various areas of environmental engineering; to evaluate organizational, technical and technological progress in contributing to ecological security; and to determine the place of environmental engineering in sustainable development, taking into account current political and economic conditions. Environmental Engineering is an invaluable source of information and ideas for the international environment engineering scientific community.

The Role of Colloidal Systems in Environmental Protection

Author: Monzer Fanun

Publisher: Elsevier

ISBN: 0444632840

Category: Technology & Engineering

Page: 720

View: 2031

The Role of Colloidal Systems in Environmental Protection describes the importance of colloids in many applications that contribute to environmental protection, including drinking water and wastewater treatment, heavy metal remediation, treatment of radioactive materials, corrosion, and energy conversion. Knowledge of the physical and chemical composition of colloids is important to understand and accurately model the relevant processes. The book familiarizes the reader with the technological features of the application of colloids in environmental protection, and provides chemical engineers, researchers, and scientists in academic and corporate communities with the latest developments in this field. Each chapter covers the whole spectrum of the relevant science, from the fundamentals to applications. Provides the applied technological features of colloids in environmental protection Gives insight into the use of bio-solid colloids as contaminant carriers Covers the natural occurrence of biosurfactants in the environment and their applications Provides information on the use of nanoparticles for environmental applications Chapters written by recognized and respected experts in the field from all over the world

Drinking Water Distribution Systems:

Assessing and Reducing Risks

Author: Committee on Public Water Supply Distribution Systems: Assessing and Reducing Risks,Water Science and Technology Board,Division on Earth and Life Studies,National Research Council

Publisher: National Academies Press

ISBN: 0309103061

Category: Science

Page: 404

View: 7605

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.

Natural Organic Matter in Water

Characterization and Treatment Methods

Author: Mika Sillanpää

Publisher: Butterworth-Heinemann

ISBN: 0128017198

Category: Technology & Engineering

Page: 382

View: 618

Approximately 77 percent of the freshwater used in the United States comes from surface-water sources and is subject to natural organic matter contamination according to the United States Geological Survey. This presents a distinct challenge to water treatment engineers. An essential resource to the latest breakthroughs in the characterization, treatment and removal of natural organic matter (NOM) from drinking water, Natural Organic Matter in Waters: Characterization and Treatment Methods focuses on advance filtration and treatment options, and processes for reducing disinfection byproducts. Based on the author’s years of research and field experience, this book begins with the characterization of NOM including: general parameters, isolation and concentration, fractionation, composition and structural analysis and biological testing. This is followed by removal methods such as inorganic coagulants, polyelectrolytes and composite coagulants. Electrochemical and membranes removal methods such as: electrocoagulation, electrochemical oxidation, microfiltration and ultrafiltration, nanofiltration and membrane fouling. Covers conventional as well as advanced NOM removal methods Includes characterization methods of NOM Explains removal methods such as: removal by coagulation, electrochemical, advanced oxidation, and integrated methods

Treatise on Water Science

Author: Peter A. Wilderer

Publisher: IWA Publishing

ISBN: 9780444531933

Category: Science

Page: 2102

View: 8273

Treatise on Water Science, Four-Volume Set Available online and in print for a limited time Water quality and management are of great significance globally, as the demand for clean, potable water far exceeds the availability. Water science research brings together the natural and applied sciences, engineering, chemistry, law and policy, and economics. The Treatise on Water Science seeks to unite these areas through contributions from a global team of author-experts. The work examines topics in depth, with an emphasis on innovative research and technologies for those working in applied areas. Development partnership with and endorsement from the International Water Association (IWA) demonstrates the authority of the content. Editor-in-Chief: Peter Wilderer, a Stockholm Water Prize recipient, has assembled a world-class team of contributors, ensuring market reach across all related sciences and a global approach to the subject. Topics related to resource management, water quality and supply, and handling of wastewater are treated in depth with up to 30 pages of coverage per topic, relative to a handful of pages per topic in comparable reference works. To buy from Elsevier, visit: http://store.elsevier.com/product.jsp?isbn=9780444531933&dmnum=CWS1 Co-Published with Elsevier

Identifying Future Drinking Water Contaminants

Author: 1998 Workshop on Emerging Drinking Water Contaminants,Commission on Geosciences, Environment and Resources,Division on Earth and Life Studies,National Research Council

Publisher: National Academies Press

ISBN: 0309064325

Category: Science

Page: 276

View: 9171

With an increasing population, use of new and diverse chemicals that can enter the water supply, and emergence of new microbial pathogens, the U.S. federal government is faced with a regulatory dilemma: Where should it focus its attention and limited resources to ensure safe drinking water supplies for the future? Identifying Future Drinking Water Contaminants is based on a 1998 workshop on emerging drinking water contaminants. It includes a dozen papers that were presented on new and emerging microbiological and chemical drinking water contaminants, associated analytical and water treatment methods for their detection and removal, and existing and proposed environmental databases to assist in their proactive identification and regulation. The papers are preceded by a conceptual approach and related recommendations to EPA for the periodic creation of future Drinking Water Contaminant Candidate Lists (CCLs--produced every five years--include currently unregulated chemical and microbiological substances that are known or anticipated to occur in public water systems and that may pose health risks).

Aquatic Organic Matter Fluorescence

Author: Paula Coble,Jamie Lead,Andy Baker,Darren Reynolds,Robert G. M. Spencer

Publisher: Cambridge University Press

ISBN: 0521764610

Category: Science

Page: 418

View: 5836

Core text on principles, laboratory/field methodologies, and data interpretation for fluorescence applications in aquatic science, for advanced students and researchers.

Guidelines for Drinking-water Quality

First addendum to volume 1, Recommendations

Author: World Health Organization

Publisher: World Health Organization

ISBN: 9241546743

Category: Medical

Page: 68

View: 6636

This publication contains the first addendum to Volume One of the 3rd edition (2004, ISBN 9241546387) of the WHO's guidelines which are used by countries worldwide to set standards for the regulation of drinking water quality and effective approaches to water safety management, including approaches to ensuring microbial safety. It gives details of all changes to the Guidelines since 2004, including the addition of three new chemical fact sheets and revisions to several others, updated guideline summary tables, new information to address local actions in response to chemical water quality problems and emergencies, an expanded discussion of chemicals used in water treatment and chemicals arising from materials in contact with water, and a complete list of minor revisions or amendments.

Issues in Global Environment: Pollution and Waste Management: 2011 Edition

Author: N.A

Publisher: ScholarlyEditions

ISBN: 1464964866

Category: Technology & Engineering

Page: 1116

View: 1818

Issues in Global Environment: Pollution and Waste Management: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Global Environment—Pollution and Waste Management. The editors have built Issues in Global Environment: Pollution and Waste Management: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Global Environment—Pollution and Waste Management in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Global Environment: Pollution and Waste Management: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.

Water 21

Author: N.A

Publisher: N.A


Category: Water quality management

Page: N.A

View: 3727


Advanced Water Supply and Wastewater Treatment: A Road to Safer Society and Environment

Author: Petr Hlavinek,Igor Winkler,Jiri Marsalek,Ivana Mahrikova

Publisher: Springer Science & Business Media

ISBN: 9400702795

Category: Technology & Engineering

Page: 353

View: 6286

Stable, safe, secure and readily available water supply is one of the key factors in ensuring a good level of the public health and a stable society. Scientific assessments show that about 80 % of diseases and one-third of the total death toll in the developing countries are caused by the low quality of the drinking water. Other countries are also suffering from water shortages and insufficient quality of the drinking water. Many rivers in Europe and in other parts of the world are significantly polluted by insufficiently treated or untreated wastewater discharge. This book is based on the discussions and papers prepared for the NATO Advanced Research Workshop that took place in Lviv, Ukraine, and addressed recent advances in water supply and wastewater treatment as a prerequisite for a safer society and environment. The contributions critically assess the existing knowledge on urban water management and provide an overview of the current water management issues, especially in the countries in transition in Central and Eastern Europe and in the Mediterranean Dialogue countries.

Heterotrophic Plate Counts and Drinking-water Safety

The Significance of HPCs for Water Quality and Human Health

Author: Bartram J.,Cotruvo J.,Exner M.,A. Glasmacher,Fricker C.

Publisher: World Health Organization

ISBN: 9241562269

Category: Medical

Page: 268

View: 7655

This text prepared by an international group of experts addresses the 'heterotrophic plate count' test which is widely used in drinking-water assessment: what it detects (and what it does not detect) its direct and indirect health significance and its use in the safety management of drinking water supplies. It includes the consensus statement from an expert review meeting and takes account of the presentations and posters at an international conference on the theme co-sponsored by WHO and NSF-International. It provides valuable information on the utility and the limitations of HPC data in the management and operation of piped water systems as well as other means of providing drinking water to the public. It is of particular value to piped public water suppliers and bottled water suppliers manufacturers and users of water treatment and transmission equipment and inline treatment devices water engineers sanitary and clinical microbiologists and national and local public health officials and regulators of drinking water quality. ...The book will be of great value to the piped public water suppliers bottled water suppliers manufacturers users of water treatment and transmission equipment and online treatment device makers water supply engineers sanitary engineers clinical and water microbiologists national and local public health officials and regulators of drinking-water quality. - Indian Journal of Medical Research

Sizing Water Service Lines and Meters, Third Edition (M22)

Author: American Water Works Association

Publisher: American Water Works Association

ISBN: 1625760272

Category: Technology & Engineering

Page: 296

View: 979

This third edition of M22 contains information needed to estimate customer demand and maximum expected flow that can be used to size new service lines and meters. This edition expands the ways to approach the sizing of water service lines and meters and offers improved methods for the sizing of dedicated irrigation meters. M22 includes a useful field method called demand profiling that can be used to evaluate actual customer use patterns and help optimize meter size selection. The data presented in M22 were obtained from field measurements, utility surveys, technical publications, and hydraulic design calculations. This manual emphasizes that utilities having more information about a specific sizing situation will result in the best sizing decision from the tap to the meter. This information has been condensed into a simplified format to assist readers in addressing most common service conditions. The methods contained in this manual are appropriate for water utility managers, engineers, planners, technicians, field operations personnel, and consultants involved with designing and constructing projects requiring water service.