Автор: Gerardi Michael Название: An Operator`s Guide to Biological Nutrient Removal (BNR) in the Activated Sludge Process ISBN: 082060416X ISBN-13(EAN): 9780820604169 Издательство: Mare Nostrum (Eurospan) Рейтинг: Цена: 43430.00 T Наличие на складе: Есть у поставщика Поставка под заказ. 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.
Автор: Zhongqi He; Hailin Zhang Название: Applied Manure and Nutrient Chemistry for Sustainable Agriculture and Environment ISBN: 9401788065 ISBN-13(EAN): 9789401788069 Издательство: Springer Рейтинг: Цена: 174150.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: Due to the rapid increase in world population and improving living standards, the global agriculture sector is confronting with challenges for the sustainability of agricultural production and of the environment.
Автор: Otoo Miriam, Drechsel Pay Название: Resource Recovery from Waste: Business Models for Energy, Nutrient and Water Reuse in Low- and Middle-income Countries ISBN: 0367778777 ISBN-13(EAN): 9780367778774 Издательство: Taylor&Francis Рейтинг: Цена: 69410.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: Humans generate millions of tons of waste every day. This book shows how Resource Recovery and Reuse (RRR) could create livelihoods, enhance food security, support green economies, reduce waste and contribute to cost recovery in the sanitation chain.
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