Chloramination of drinking water is not a new technology. Some water utilities have successfully used chloramines for over 40 years; other utilities have experienced problems including nitrification, stimulation of biological growth, an inability to maintain adequate chlorine residuals, and customer complaints about the taste and/or odor of the water. Today, many utilities are considering chloramines as a secondary disinfectant within their distribution system, primarily as an economical method to meet ever more stringent disinfection byproduct limits. The primary purpose of this project was to develop material that could be used as a concise and practical guidance manual for those responsible for chloramination at water works facilities. A survey was conducted by mail of 63 public water systems that use chloramines. Telephone interviews were used as a follow-up to clarify information and gain additional insight into daily operations. Thirteen utilities were selected for an in-depth on-site visit to establish today's best operating practice for chloramination. These results were compared against a review of the current pertinent literature. Finally, a user's guide was compiled for those implementing or using chloramines. Originally published by AwwaRF for its subscribers in 2004.

Utilities are required to measure TOC concentrations in treatment plant influents and waters that contain a variety of dissolved molecules and organic particles. Uncertainties about the analytical accuracy of TOC measurements are the result of inadequate proficiency evaluation standards. The three primary research goals of the project were to: (1) develop total organic carbon (TOC) standards that can be used with all TOC methodologies to evaluate performance; (2) determine the ability of different TOC methodologies to accurately measure TOC; (3) test the ruggedness of the proficiency standards in a round-robin survey involving a large number of laboratories. A fourth goal was to determine the contribution of natural organic particles and suspended organic carbon (SOC) in the formation of DBPs. In general, all laboratories performed well in the analysis of an easily oxidized standard, potassium hydrogen phthalate (KHP). In contrast, several analysts had difficulty in efficiently separating an inorganic C (IC) amendment from the KHP standard when a 30 mg IC/L spike was added to the standard.Averaged over all instruments and analysts, standards that were solutions were analyzed with 92 9 per cent recovery, while standards that were particles were analyzed with 55 21 per cent recovery. The project data suggest that particles can compete with dissolved precursor material in reactions with applied disinfectants and contribute DBP precursors Originally published by AwwaRF for its subscribers in 2003

Tapping the Oceans provides a detailed analysis of the political and ecological debates facing water desalination in the twenty-first century. Water supplies for cities around the world are undergoing profound geographical, technological and political transformations. Increasingly, water-stressed cities are looking to the oceans to fix unreliable, contested and over-burdened water supply systems. Yet the use of emerging desalination technologies is accompanied by intense debates on their economic cost, governance, environmental impact and poses wider questions for the sustainable and just provision of urban water. Through a series of cutting-edge case studies and multi-subject approaches, this book explores the perspectives, disputes and politics surrounding water desalination on a broad geographical scale. As the first book of its kind, this unique work will appeal to those researching water and infrastructure issues in the fields of political ecology, geography, environmental science and sustainability. Industry and water managers who wish to understand the political debates around desalination technology more fully will also find this an informative read. Contributors include: E. Feitelson, M. Fragkou, S. Gorostiza, A. Loftus, H. March, J. McEvoy, D. Pavon Gamero, D. Sauri, A. Scheba, S. Scheba, E. Swyngedouw, M. Usher, J. Williams

This book presents a comprehensive review of the state-of-the-art research on water treatment methods for the removal of cyanobacteria, taste and odour compounds, and cyanotoxins. The topics covered include practically all technologies that are currently used or are in a state of research and development e.g. membrane filtration, adsorption, biological treatment, chemical disinfection-oxidation, advanced oxidation processes, reviewing their effects on cyanotoxins with regards to degradation, detoxification, mineralization and relative mechanisms. The book highlights strong and weak points regarding the applicability of these techniques on a large scale, discusses issues regarding the quality of treated water, and identifies research gaps and future research needs on the topic. Topics covered include: * Introduction to cyanobacteria and cyanotoxins * Cyanotoxins and human health * Physical treatment for the removal of cyanobacteria/cyanotoxins * Biological treatment for the destruction of cyanobacteria/cyanotoxins * Conventional disinfection and/or oxidation processes * Advanced oxidation processes * Removal and/or destruction of taste and odour compounds. * Integrated drinking water processes. * Transformation products of cyanobacterial metabolites during water treatment. The book concludes with a section of case studies and real life examples, followed by a review of the research gaps and future perspectives. This book has been developed within the frame of the COST-funded CYANOCOST Action http://cyanocost.com/index.php and is edited by experienced scientists in the field. Chapters are authoritative and written by an internationally recognized team of experts in specific research topics related to water treatment for purification from cyanobacteria and cyanotoxins.

Shared water resources in Israel and Palestine are often the site of political, economic, historical, legal and ethical contestation. In this, the second of two volumes on the subject, the authors look beyond the political tensions of the region, to argue for the need for shared water security and co-operative resource management. Winning Water Security for Palestinians and Israelis, the authors assess water security in terms of security of access to water resources, security of access to water services and security against risks to and from water. The volume compares and contrasts Israelis remarkable water security with the corresponding water insecurity of the Palestinians. The authors also set out the practical, economic, legal and ethical rationale for a revised cooperation on water security between the two peoples, proposing a workable scheme for putting into practice a new form of cooperation that would hope to benefit both peoples and strengthen their water security.

This volume considers how Greco-Roman authorities manipulated water on the practical, technological, and political levels. Water was controlled and harnessed with legal oversight and civic infrastructure (e.g., aqueducts). Waterways were 'improved' and made accessible by harbors, canals, and lighthouses. The Mediterranean Sea and Outer Ocean (and numerous rivers) were mastered by navigation for warfare, exploration, settlement, maritime trade, and the exploitation of marine resources (such as fishing). These waterways were also a robust source of propaganda on coins, public monuments, and poetic encomia as governments vied to establish, maintain, or spread their identities and predominance. This first complete study of the ancient scientific and public engagement with water makes a major contribution to classics, geography, hydrology and the history of science alike. In the ancient Mediterranean Basin, water was a powerful tool of human endeavor, employed for industry, trade, hunting and fishing, and as an element in luxurious aesthetic installations (public and private fountains). The relationship was complex and pervasive, touching on every aspect of human life, from mundane acts of collecting water for the household, to private and public issues of comfort and health (latrines, sewers, baths), to the identity of the state writ large.

Globally, poor hygiene and sanitation contribute to more than 1,000 daily deaths from diarrhoeal diseases among children under the age of 5, while two thirds of urban wastewaters are discharged without treatment into lakes, rivers and coastal waters. Across Europe the percentage of the population connected to wastewater treatment plants varies from 14% to >99% with many reliant on unsuitable decentralised sanitation systems or no wastewater treatment at all. With less than a decade left to achieve the 2030 sanitation targets as set out in the Sustainable Development Goals, there is an urgent need to develop new treatment solutions that can be rapidly deployed to meet the needs of growing urban and peri-urban populations, together with under-served rural communities. This book discusses decentralised wastewater treatment and the role of nature-based solutions within the context of the twenty-partner international INNOQUA project. INNOQUA set out to develop and demonstrate a suite of modular, low cost, decentralised solutions that use the combined capabilities of earthworms, bacteria, Cladocera and micro-algae to deliver nature-based primary, secondary and tertiary treatment - followed by UV disinfection. Design and operation principles are outlined, together with performance data and practical feedback from pilot and demonstration facilities situated in eleven countries from Ecuador to Scotland and India. Barriers and drivers towards more widespread uptake of these technologies are also examined, alongside an exploration of existing markets for nature-based sanitation in the Global South.

Environmental problems caused by the increase of pollutant loads discharged into natural water bodies requires the formation of a framework for regulation and control. This framework needs to be based on scientific results that relate pollutant discharge with changes in water quality. The results of these studies allow the industry to apply more efficient methods of controlling and treating waste loads, and water authorities to enforce appropriate regulations regarding this matter. Water pollution problems are essentially interdisciplinary. Engineers and scientists working in this field must be familiar with a wide range of issues including the physical processes of mixing and dilution, chemical and biological processes, mathematical modelling, data acquisition and measurement, to name but a few. In view of the scarcity of available data, it is important that experiences are shared on an international basis. Thus, a continuous exchange of information between scientists from different countries is essential. Papers presented at Water Pollution 2020, the 15th International Conference in the series of Monitoring, Modelling and Management of Water Pollution, are contained in this volume and highlight research works from scientists, managers and academics from different areas of water contamination.

Industry wastewater is a major contributor to environmental pollution with chemicals such as dyes, acids, fungicides, and more creating a threat to the environment. Nanocomposites of heterogeneous photocatalysis can be used to cure such problems due to its efficiency and ease of use, as well as the fact that it turns toxic chemicals completely to carbon dioxide and inorganic acids. With toxic chemicals posing a tremendous threat to ecological wellbeing and human health, it is integral that a variety of nanocomposites are studied for their use in the degradation of toxic and hazardous chemicals. Innovative Nanocomposites for the Remediation and Decontamination of Wastewater describes the synthesis of nanomaterials and its application for the protection of the environment. It presents studies on the photodegradation of the various toxic and hazardous chemicals by different nanocomposites, as well as the decontamination of bodies of water through the use of various nanocomposites. Covering topics such as dye degradation, novel biomaterials, and structural modification, this premier reference source is a vital resource for environmental scientists, construction managers, compliance officers, biochemists, biophysicists, conservation scientists, hydrologists, microbiologists, libraries, students and educators of higher education, researchers, and academicians.

A major issue that has remained prevalent in today's modern world has been the presence of chemicals within water sources that the public uses for drinking. The associated health risks that accompany these contaminants are unknown but have sparked serious concern and emotive arguments among the global community. Empirical research is a necessity to further understand these contaminants and the effects they have on the environment. Effects of Emerging Chemical Contaminants on Water Resources and Environmental Health is a pivotal reference source that provides vital research on current issues regarding the occurrence, toxicology, and abatement of emerging contaminants in water sources. While highlighting topics such as remediation techniques, pollution minimization, and technological developments, this publication explores sample preparation and detection of these chemical contaminants as well as policy and legislative issues related to public health. This book is ideally designed for environmental engineers, biologists, health scientists, researchers, students, and professors seeking further research on the latest developments in the detection of water contaminants.

This book highlights novel materials for dye-containing wastewater treatment and presents an up-to-date information on dye degradation/adsorption using new promising materials such as nanocomposites. Development of various industrial sectors, including textile, food, paper, leather, rubber, cosmetic and printing has led to generation of wastewater which contain dye molecules as well as other inorganic and organic compounds. Considering serious health hazards and environmental damage associated with dyes in the environment, researchers and professionals have been attempting to find the most effective methods of treatment. Of late, various composites have received wide attention due to their outstanding properties in wastewater treatment, that are presented in this book.

Encompassing papers form the 2019 Water and Society Conference, this book is a collection of latest trans-disciplinary research on issues related to the nature of water, and its use and exploitation by society. This book demonstrates the need to bridge the gap between specialists in physical sciences, biology, environmental sciences and health. Over the centuries, civilisations have relied on the availability of clean and inexpensive water. This can no longer be taken for granted as the need for water continues to increase due to the pressure from growing global population demanding higher living standards. Agriculture and industry, major users of water, are at the same time those that contribute to its contamination. Water distribution networks in urban areas, as well as soiled water collection systems, present serious problems in response to a growing population as well as the need to maintain ageing infrastructures. Many technologically feasible solutions, such as desalination or pumping systems are energy demanding but, as costs rise, the techniques currently developed may need to be re-assessed. The research contained in this book addresses the interaction between water and energy systems. The socio-political implications of a world short of clean, easily available water are enormous. It will lead to realignments in international politics and the emergence of new centres of power in the world. The following list covers some of the subjects included in this book: Water resources management; Agribusiness; Water as a human right; Water quality; Water resources contamination; Sanitation and health; Water and disaster management; Policy and legislation; Future water demands; Irrigation and water management; Management of catchments; Groundwater management and conservation.

This book analyses and quantifies how and where energy and water are consumed by the ceramic sanitary-ware industry and provides solutions as to how to reduce this. The whole production process is mapped, including modelling methods. The book begins by providing an introduction to ceramic sanitary-ware production and types of factories casting technology. It then moves on to discuss the process and energy modelling for the production line, analysis of energy and water consumptions and proposals for improvements. The last chapter presents the practical implementation of the selected modelling configuration. This book is of particular interest to water and energy management professionals within the ceramic industry, but the methods are of interest to those in other production industries as well.