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This standard describes hydraulic and pneumatic linear and quarter-turn actuators for operation of valves and slide gates in utility systems.

Simplified, approved procedures for lab tests commonly needed for process control in drinking water production.

This standard describes resilient-seated gate valves with nonrising stems (NRS) and outside screw-and-yoke (OS&Y) rising stems, including tapping gate valves for water supply service. The resilient-seated gate valve has been in service in various water utility applications since 1975.

An unfortunate by-product of industrialization is the contamination of soil and water resources with toxic metals, which becomes an environmental concern when the concentration in soils begins to affect human health. Current remediation methods applicable to contaminated soils are expensive and environmentally invasive since they are based primarily on civil-engineering techniques. This book represents an overview of efforts in exploiting biological and chemical processes to reduce the inherent...

This book describes a comprehensive framework of novel simulation approaches, conventional urban models, and related data mining techniques that will help develop planning support systems in Beijing as well as other mega-metropolitan areas. It investigates the relationships between human behaviors and spatial patterns in order to simulate activities in an urban space, visualize planning alternatives, and support decision making. The book first explains urban space using geometric patterns, such...

This standard covers the material, application, and field-procedure requirements for protective exterior coatings consisting of heat-shrinkable cross-linked polyolefin coatings and their application to special sections, connections, and fittings to be used.

The study presented in this book is a part of a collective effort to bridge the existing gap of our understanding of morphological behavior of tidal basins between engineering and geological time scales by extending the use of coastal engineering tools (process-based models) to geological time scales. The Dutch Waddenzee is chosen as the case study and the working hypothesis that 'If you put enough of the essential physics into the model, the most important features of the morphological behavior...

Written and edited by the world's leading experts, "Renewable Energy" is the most comprehensive reference work on alternative energy ever published. Overall performance, cost, market potential, and environmental impact are assessed for fuels and electricity derived from hydroelectric, wind, photovoltaics, solar-thermal, geothermal, ocean, and biomass energy sources. In addition, practical and specific recommendations for promoting the adoption of renewables on a broad scale and presented and ana...

The Audit 123 audit system checklists have been designed to suit all levels and sizes of an organisation, from small single units to large global organisations, and to act as a guide assisting organisations in achieving and confirming conformity with the ISO 14001:2015 standard and the successful management of environmental issues. Audit 123 - ISO 14001:2015 - Level 1 comprises a single audit workbook with separate auditor's guidance and may be used to audit an organisation's conformity as a who...

This book provides readers with the knowledge they need to integrate sustainable approaches into their work. It covers different aspects of green methods, such as microwave irradiation, ultrasound sonication, ball milling, solvent-free reactions, the use of water as a solvent, and ionic liquids, for the synthesis of different compounds. Bringing together the knowledge of an expert team, this book provides a comprehensive overview of the use of green chemistry techniques, which have been frequent...

This book aims to clarify the priorities of the Sendai Framework for the DRR 2015 - 2030, through gathering recent contributions addressing the different ways researchers define, measure, reduce, and manage risk in the challenge of the DRR. Beyond a discussion of the different definitions of disaster risk; this book provides contributions focused on optimization approaches that support the decision-making process in the challenge of managing DRR problems considering emerging disaster risks in th...

Bioremediation is one of the most promising technological approaches to the problem of hazardous waste, which relies on microorganisms such as bacteria or fungi to transform hazardous chemicals into less toxic or nontoxic substances. Such biological transformation is more attractive than direct chemical or physical treatment. Microorganisms directly degrade contaminants rather than merely transferring them from one medium to another, employ metabolic degradation pathways and can be used in situ...

This standard sets requirements for all-hazards risk and resilience analysis and management for the water sector and prescribes methods that can be used for addressing these requirements.

Environmental studies provide an ideal opportunity for children of any age to build critical and creative thinking skills while also building skills in science, technology, engineering, and mathematics (STEM). Exploring issues related to sustainability and environmental concerns permits learners to identify problems, develop research questions, gather and analyze data, develop possible solutions, and disseminate this information to others. Despite the advantages of green education and its abilit...

WERF convened a workshop on March 21-22, 2002, for the purpose of characterizing the spectrum of asset management programs across public water and wastewater utilities and recommending a research agenda to promote the next generation of tools for reducing risk and improving competitiveness. WERF's goals for the workshop were to: Survey, examine, and document effective asset management approaches. Construct a view of the state of implementation of asset management and identify barri...

Interest in solid and hazardous waste management is relatively recent, i.e., in the last three decades, and is driven by regulations in most countries. It began with industrial hazardous waste followed by municipal solid waste, and subsequently by many other categories of waste. This book presents numerous examples and case studies of innovative tools, treatment methods and applications in this growing area of research and development. It describes in detail laboratory methods of measuring the...

A complete restructuring and updating of the classic 1982 Handbook of Chemical Property Estimation Methods (commonly known as "Lyman's Handbook"), the Handbook of Property Estimation Methods for Chemicals: Environmental and Health Sciences reviews and recommends practical methods for estimating environmentally important properties of organic chemic