Includes a bibliography

Volume 4 of the Guidelines for the safe use of wastewater, excreta and greywater provides information on the assessment and management of risks associated with microbial hazards. It explains requirements to promote the safe use of excreta and greywater in agriculture, including minimum procedures and specific health-based targets, and how those requirements are intended to be used. This volume also describes the approaches used in deriving the guidelines, including health-based targets, and includes a substantive revision of approaches to ensuring microbial safety

The third edition of the WHO Guidelines for the Safe Use of Wastewater, Excreta and Greywater has been extensively updated to take account of new scientific evidence and contemporary approaches to risk management. The revised Guidelines reflect a strong focus on disease prevention and public health principles. This new edition responds to a growing demand from WHO Member States for guidance on the safe use of wastewater, excreta, and greywater in agriculture and aquaculture. Its target audience includes environmental and public health scientists, researchers, engineers, policy-makers and those responsible for developing standards and regulations. The Guidelines are presented in four separate volumes: Volume 1: Policy and regulatory aspects Volume 2:Wastewater use in agriculture Volume 3: Wastewater and excreta use in aquaculture Volume 4: Excreta and greywater use in agriculture. Volume 1 of the Guidelines presents policy issues and regulatory measures distilled from the technical detail found in volumes 2, 3, and 4. Those faced with the need to expedite the development of policies, procedures, and regulatory frameworks, at national and local government levels, will find the essential information in this volume. It also includes summaries of the other volumes in the series. Volume 2 of the Guidelines explains requirements to promote safe use concepts and practices including health-based targets and minimum procedures. It also covers a substantive revision of approaches to ensuring the microbial safety of wastewater used in agriculture. It introduces health impact assessment of new wastewater projects. Volume 3 of the Guidelines informs readers on the assessment of microbial hazards and toxic chemicals and the management of the associated risks when using wastewater and excreta in aquaculture. It explains requirements to promote safe use practices, including minimum procedures and specific health-based targets. It puts trade-offs between potential risks and nutritional benefits in a wider development context. Volume 4 of the Guidelines focuses exclusively on the safe use f excreta and greywater in agriculture. Recent trends in sanitation, including ecological sanitation, are driven by rapid urbanization. The momentum created by the Millennium Development Goals is resulting in dramatic changes in human waste handling and processing. New opportunities enable the use of human waste as a resource for pro-poor agricultural development, particularly in periurban areas. Best practice to minimize associated health risks is at the heart of this volume.

The third edition of the WHO Guidelines for the safe use of wastewater, excreta, and greywater has been extensively updated to take account of new scientific evidence and contemporary approaches to risk management. The revised Guidelines reflect a strong focus on disease prevention and public health principles. This new edition responds to a growing demand from WHO Member States for guidance on the safe use of wastewater, excreta, and greywater in agriculture and aquaculture. Its target audience includes environmental and public health scientists, researchers, engineers, policy-makers and those responsible for developing standards and regulations. The Guidelines are presented in four separate volumes: Volume 1: Policy and regulatory aspects Volume 2: Wastewater use in agriculture Volume 3: Wastewater and excreta use in aquaculture Volume 4: Excreta and greywater use in agriculture Volume 1 of the Guidelines presents policy issues and regulatory measures distilled from the technical detail found in volumes 2 3 and 4. Those faced with the need to expedite the development of policies, procedures, and regulatory frameworks, at national and local government levels, will find the essential information in this volume. It also includes summaries of the other volumes in the series. Volume 2 of the Guidelines explains requirements to promote safe use concepts and practices including health-based targets and minimum procedures. It also covers a substantive revision of approaches to ensuring the microbial safety of wastewater used in agriculture. It introduces health impact assessment of new wastewater projects. Volume 3 of the Guidelines informs readers on the assessment of microbial hazards and toxic chemicals and the management of the associated risks when using wastewater and excreta in aquaculture. It explains requirements to promote safe use practices, including minimum procedures and specific health-based targets. It puts trade-offs between potential risks and nutritional benefits in a wider development context. Volume 4 of the Guidelines focuses exclusively on the safe use of excreta and greywater in agriculture. Recent trends in sanitation, including ecological sanitation, are driven by rapid urbanization. The momentum created by the Millennium Development Goals is resulting in dramatic changes in human waste handling and processing. New opportunities enable the use of human waste as a resource for pro-poor agricultural development, particularly in periurban areas. Best practice to minimize associated health risks is at the heart of this volume

This book offers a broad and global level description of the current status of wastewater use in agriculture and then brings the readers to various places in the MENA Region and Europe to explain how some countries and regions have addressed the challenges during implementation. On a global scale, over 20 million hectares of agricultural land are irrigated using wastewater. This is one good, and perhaps the most prominent, example of the safe use potential of wastewater. Water scarcity and the cost of energy and fertilisers are among the main factors driving millions of farmers and other entrepreneurs to make use of wastewater. In order to address the technical, institutional, and policy challenges of safe water reuse, developing countries and countries in transition need clear institutional arrangements and more skilled human resources, with a sound understanding of the opportunities and potential risks of wastewater use. Stakeholders in wastewater irrigation who need to implement from scratch or improve current conditions, find it difficult to gather the necessary information on practical implementation aspects. The main objective of this book is to bridge that gap.

"Sanitation Safety Planning (SSP) is a step-by-step risk based approach to assist in the implementation of the 2006 WHO Guidelines for Safe Use of Wastewater, Excreta and Greywater in Agriculture and Aquaculture. The approach can be applied to all sanitary systems to ensure the system is managed to meet health objectives. SSP assists users to: systematically identify and manage health risk along the sanitation chain; guide investment based on actual risks, to promote health benefits and minimize adverse health impacts; provide assurance to authorities and the public on the safety of sanitation-related products and services. The SSP manual is targeted at a variety of users at different levels including; health authorities and regulators, local authorities, wastewater utility managers, sanitation enterprises and farmers, community based organizations, farmers associations and NGOs. SSP brings together actors from different sectors to identify health risks in the sanitation system and agree on improvements and regular monitoring and underscores the leadership role of the health sector."--Publisher's description.

This is the 2024 update of the Compendium of WHO and other UN guidance on health and environment. The Compendium is a comprehensive collection of available WHO and other UN guidance for improving health by creating healthier environments. It provides an overview and easy access of more than 500 actions, and a framework for thinking about health and environment interventions. It covers a broad range of areas such as air pollution, water, sanitation and hygiene, climate change, chemicals, radiation, or food systems. Guidance is classified according to principal sectors involved, level of implementation (national, community, health care), the type of instrument (taxes, infrastructure etc.) and the category of evidence. The Compendium compiles existing guidance from hundreds of documents in a simple and systematized format. To ensure the most up-to-date information is provided to the end users, the Compendium is updated on a regular basis and incorporates the latest major WHO or other UN guidance on health and environment. The target audience includes any decision-makers with relevance to health and environment, and those assisting them (such as mayors, staff in ministries, UN country staff etc.). The Compendium has been prepared by WHO in cooperation with UN Environment, UNDP and UNICEF.

Clean Energy and Resource Recovery: Wastewater Treatment Plants as Bio-refineries, Volume 2, summarizes the fundamentals of various treatment modes applied to the recovery of energy and value-added products from wastewater treatment plants. The book addresses the production of biofuel, heat, and electricity, chemicals, feed, and other products from municipal wastewater, industrial wastewater, and sludge. It intends to provide the readers an account of up-to-date information on the recovery of biofuels and other value-added products using conventional and advanced technological developments. The book starts with identifying the key problems of the sectors and then provides solutions to them with step-by-step guidance on the implementation of processes and procedures. Titles compiled in this book further explore related issues like the safe disposal of leftovers, from a local to global scale. Finally, the book sheds light on how wastewater treatment facilities reduce stress on energy systems, decrease air and water pollution, build resiliency, and drive local economic activity.As a compliment to Volume 1: Biomass Waste Based Biorefineries, Clean Energy and Resource Recovery, Volume 2: Wastewater Treatment Plants as Bio-refineries is a comprehensive reference on all aspects of energy and resource recovery from wastewater. The book is going to be a handy reference tool for energy researchers, environmental scientists, and civil, chemical, and municipal engineers interested in waste-to-energy. - Offers a comprehensive overview of the fundamental treatments and methods used in the recovery of energy and value-added products from wastewater - Identifies solutions to key problems related to wastewater to energy/resource recovery through conventional and advanced technologies and explore the alternatives - Provides step-by-step guidance on procedures and calculations from practical field data - Includes successful case studies from both developing and developed countries

In this version of the compendium, each guidance is coded using the International Classification of Health Interventions (ICHI). The compendium provides a systematic compilation of published guidance from WHO and other UN organizations on health and environment. Guidance on policies and actions as well as awareness raising and capacity building interventions is presented for all major areas of health and environment. Guidance referring to priority settings for action such as cities and other urban settlements, housing, workplaces and health care facilities is also listed. For greater practical relevance, each guidance is classified according to principally involved sectors, level of implementation and instruments for implementation. The compilation of guidance for each area of health and environment or priority setting for action is accompanied, as available, by information on main sources, exposure assessment and existing guideline values. Important tools and further resources are presented alongside. This compilation of published guidance on health and environment highlights that a large number of actions across main topics of health and environment, concerning various sectors, and applicable to various levels are available to improve health and reduce environmental risks. This compendium is intended to serve as a repository and easy-to-use and useful resource for decision and policy makers in health and environment at various levels. The Compendium is planned to be updated on an annual basis as additional guidance becomes available.