Описание: Biological nutrient removal (BNR), the removal of nitrogen and phosphorus from wastewater, is a complex process. Although the activated sludge process is an efficient technology for the removal of biochemical oxygen demand (BOD) and total suspended solids (TSS), it provides less-than-optimal conditions for the removal of nitrogen and phosphorus, and presents numerous challenges to the operator trying to satisfy the many requirements for several different groups of bacteria. In addition to satisfying the requirements there are numerous, highly variable operational conditions that impact BNR. These conditions include: changes in strength and composition of the wastewater, alkalinity and pH, temperature, and presence of inhibitory and toxic wastes. Even fluctuations in flows, especially from inflow and infiltration, can adversely impact the aerobic, anoxic, and anaerobic conditions needed for successful BNR. Of the three treatment processes, nitrification, denitrification, and enhanced biological removal, nitrification is often the most difficult to achieve. Therefore, a large portion of this book reviews nitrification. Operators of the activated sludge process need to understand the basic biological, chemical, and physical requirements for BNR in order to improve the performance of these treatment processes. An Operator’s Guide to Biological Nutrient Removal (BNR) in the Activated Sludge Process is intended to help operators in the monitoring, troubleshooting, and process control of BNR. Numerous tables and figures are included in the book to help the operator understand the biological and chemical reactions that are involved in BNR processes and how the reactions can be monitored for process control.Design of BNR processes is not addressed in this book. Design is addressed in numerous engineering publications. The book serves to help operators achieve permit compliance for nitrogen and phosphorus discharge limits and obtain cost-effective operation.
Описание: An assessment of the pathogen removal processes of the aerobic granular sludge (AGS) technology is provided. The AGS capacity on removing faecal indicators (E. coli, Enterococci, coliforms and bacteriophages) was determined in full-scale facilities.
Описание: Endocrine Disrupting Chemicals (EDCs) have been shown to produce changes in the endocrine system of organisms, leading to increases in cancers and abnormalities in reproductive structure and function. This book presents research on the endocrine-disrupting effects of sewage and industrial effluents, covering the sources, fate, and transport of EDCs
Описание: This study focused on the development of an innovative sludge treatment unit that is based on the microwave irradiation technology. This study contributes in providing solutions towards improved sanitation in complex scenarios, especially the management of faecal sludge in emergency and slum conditions.
Описание: This study proposes applications of technology advances for a better emergency sanitation responses. Proposed ideas are development of a smart toilet and a decision support system to help better planning of sanitation responses in a shortest time possible, and an attempt to simulate financial flow of a sanitation system in a web application.
Автор: Haq Farooqi, Izharul Название: Management of Wastewater and Sludge ISBN: 1032064633 ISBN-13(EAN): 9781032064635 Издательство: Taylor&Francis Рейтинг: Цена: 20671.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This title includes a number of Open Access chapters. The activated sludge process is one of the most versatile and commonly used wastewater treatment systems in the world. In the past, when industrial wastewater treatment focused on removing biological oxygen demand and suspended solids, waste water plants need
Название: Activated Sludge ISBN: 0367447789 ISBN-13(EAN): 9780367447786 Издательство: Taylor&Francis Рейтинг: Цена: 10104.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This book is a part of the eight-volume series known as the Water Quality Management Library. It provides material on activated sludge process design and control and is a text for continuing education courses and workshops, including those on environmental quality management and water treatment.
Описание: First published in 1978: The purpose of this two-volume series is to present a consolidated and comprehensive reference on oxygen-activated sludge technology.
Автор: Epstein, Eliot Название: Land Application of Sewage Sludge and Biosolids ISBN: 0367454742 ISBN-13(EAN): 9780367454746 Издательство: Taylor&Francis Рейтинг: Цена: 9645.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
Over 50 percent of the 6,900 million dry tons of sewage sludge generated each year in the United States is land applied. The principal controversies surrounding the land application of biosolids involve heavy metals and pathogens. Land Application of Sewage Sludge and Biosolids is a comprehensive, scientific text providing a complete review of various aspects of this controversial subject, from an extensive discussion of heavy metals and pathogens to the fate and effects of organic compounds. Consideration is given to crop removal of metals and organics, soil erosion, and leaching, as well as to differing approaches and regulations in Europe and Canada. The result is an authoritative, science-based, and unbiased perspective on the benefits and the potential risks of land application to human health and the environment.
About the Author: Elliot Epstein, Ph.D. is Chief Environmental Scientist for Tetra Tech, Inc. and an adjunct professor of public health at Boston University School of Public Health. He received his Ph.D. in soil physics from Purdue University and served as a research leader for the U.S. Department of Agriculture's Agricultural Research Service for 16 years. Dr. Epstein has more than 30 years of experience in biosolids composting, and has managed or directed more than 400 composting projects. He has consulted on composting and biosolids management for the USEPA, World Bank, and United Nations.
Описание: The book is about the discovery of a Standard Specific Baseline Mass Transfer Coefficient (KLa0)20 that represents a revolutionary change in the understanding, designing, operation of aeration equipment, as well as providing a baseline for future research and development.
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