Böcker av Frank R. (Spellman Environmental Consultants Spellman

Assessment of freshwater sediments can determine whether chemical concentrations are sufficient to cause adverse effects on aquatic organisms or organisms higher in the food chain, including humans. This book presents methods for assessing sediments and includes an integration of physical, chemical, and biological information. It examines the elements of quality assurance and control programs, considerations for the conduct of field surveys, screening-level analyses, chemical analyses, toxicity tests for assessing biological impacts, assessments of benthic invertebrate community structure, surveys of fish tumors and abnormalities, and data presentation and interpretation techniques.

Environmental professionals are often called upon to find solutions to environmental degradation problems or to lead the way in planning to prevent them. Because they come mainly from the environmental and science disciplines, most environmental professionals have limited training in the fundamentals of economics. This book is designed to provide those professionals not only with the basic principles of economics for foundational purposes but also the economic pros and cons to consider when making critical decisions on environmental issues.

A critical aspect of sustainability associated with water and wastewater systems is to maintain and manage infrastructure in the most efficient and economical manner while complying with environmental regulations and keeping rates at acceptable levels. Given the high cost of fuel, our growing population, and the associated increase in energy needs, it is important to address energy use and future energy availability for the treatment of the water we drink and the water we pollute. Water & Wastewater Infrastructure: Energy Efficiency and Sustainability addresses these issues, detailing the processes that can assist facilities to become more energy efficient and providing guidance to ensure their sustainability.The text begins with brief descriptions of the water and wastewater treatment industries. It then describes some of the basics of energy and discusses what planning for a sustainable energy future in water and wastewater treatment plants entails. The author explores energy-saving options and provides case studies to demonstrate how some facilities have used equipment, technology, and operating strategies to save money and reduce their impact. The energy-efficient technologies include combined heat and power (CHP), gas turbines, microturbines, reciprocating engines, steam turbines, and fuel cells. The author also addresses biomass power and biogas.The section on sustainability and renewable energy covers hydropower, solar power, and wind power as well as energy conservation measures for treating wastewater. Nine appendices provide individual case studies that present evaluations of energy conservation measures, results, payback analysis, and conclusions. This book addresses the challenges faced by water and wastewater treatment facilities by examining how they can operate in ways that provide economic and environmental benefits, save money, reduce environmental impact, and lead to sustainability.

Maintenance operators that can understand and properly use blueprints and schematics have little difficulty in correctly interpreting and using plant unit process drawings. This guide covers basic principles of blueprint reading and deals with principles and applications of schematics and symbols.

Explains water hydraulics in the context of treatment plants, presenting hydraulic theory and calculations in terms of the machinery and unit operations familiar to operators. This book covers hydraulics as related to keeping water moving from one unit process to the next, including maintaining proper settling times and settling velocity.