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: With the advancement of new technologies, existing wastewater treatment units need to be reexamined to make them more efficient and to release the load currently placed on them. Thus, there is an urgent need to develop and adopt the latest design methodology to determine and remove harmful impurities from water sources. Advanced Design of Wastewater Treatment Plants: Emerging Research and Opportunities is a critical scholarly resource that explores the design of various units of wastewater treatment plants and treatment technologies that can produce reusable quality water from wastewater. The book covers topics that include the basic philosophy of wastewater treatment, designing principles of various wastewater treatment units, conventional treatment systems, and advanced treatment processes. It is an integral reference source for engineers, environmentalists, waste authorities, solid waste management companies, landfill operators, legislators, researchers, and academicians.
Описание: With the advancement of new technologies, existing wastewater treatment units need to be reexamined to make them more efficient and to release the load currently placed on them. Thus, there is an urgent need to develop and adopt the latest design methodology to determine and remove harmful impurities from water sources. Advanced Design of Wastewater Treatment Plants: Emerging Research and Opportunities is a critical scholarly resource that explores the design of various units of wastewater treatment plants and treatment technologies that can produce reusable quality water from wastewater. The book covers topics that include the basic philosophy of wastewater treatment, designing principles of various wastewater treatment units, conventional treatment systems, and advanced treatment processes. It is an integral reference source for engineers, environmentalists, waste authorities, solid waste management companies, landfill operators, legislators, researchers, and academicians.
Автор: Ahsan, Amimul Название: Nanotechnology in Water and Wastewater Treatment ISBN: 0128139021 ISBN-13(EAN): 9780128139028 Издательство: Elsevier Science Рейтинг: Цена: 23244.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
Nanotechnology in Water and Waste Water Treatment: Theory and Applications explores the unique physicochemical and surface properties of nanoparticles and highlights the advantages they provide for engineering applications. Applications covered include the generation of fresh water from surface water and seawater, the prevention of the contamination of the environment, and the creation of effective and efficient methods for remediation of polluted waters. Each chapter covers a different nanotechnology-based approach and examines the basic principles, practical applications, recent breakthroughs and associated limitations. This book is ideal for researchers and professionals in the fields of nanotechnology, water treatment and desalination.
In addition, it is also ideal for postgraduate students, industry and government professionals, managers and policymakers.
Gathers together the latest research and developments in the field from journal articles and conference proceedings
Discusses and evaluates the most economical and low cost treatment technologies
Presents information from related fields on the applicability, strengths and weaknesses of particular nanomaterials in key applications, thus allowing for the continuation and expansion of research in a range of fields
Автор: Upadhyayula Sreedevi, Chaudhary Amita Название: Advanced Materials and Technologies for Wastewater Treatment ISBN: 0367686163 ISBN-13(EAN): 9780367686161 Издательство: Taylor&Francis Рейтинг: Цена: 22202.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This book discusses advanced materials and technologies used in wastewater treatment. It includes the treatment of waste generated by municipal, agro-industry, and other industries including chemical, biomedical, pharmaceutical, textile, and other sectors.
Автор: N. Manivasakam Название: Treatment of Textile Processing Effluents ISBN: 0820601756 ISBN-13(EAN): 9780820601755 Издательство: Mare Nostrum (Eurospan) Рейтинг: Цена: 21760.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This book is written with the intention of providing textile processors with a clear picture of the effluents emerging from their industry, and to have a suitable treatment system that works efficiently and economically.
Описание: Today we can predict storms, reuse wastewater, and desalinate inland waters. And while technology makes it easier to quickly communicate, it can also strip away our humanity. Rather than succumb to the pull of anonymity created by that same technology, this book was written to help blur the lines between the experts and the public they affect.It means the experts never forgetting there are real people trusting them that the water is indeed “safe” to swim in or the wastewater can be treated to a level safe enough to drink. It means the public recognizing that operators must fix a main break no matter when it occurs. It means bringing the public into the mix upstream, at the discovery point of the problem rather than waiting to hand them only the preferred solution.No longer is lifting the experts’ curtain only when they’re ready to theatrically reveal solutions acceptable. Gone are the days when the public trusts all of the negotiations, problem solving, and hidden props appearing after the production of the water experts is complete.For the one thing you can predict about us humans is that hidden beneath the façade of logic, is our deep-seated emotional side. For only with a solid understanding of the consumer’s hidden world of perceptions and irrationality, can we truly communicate the value of water.This book reveals the power of engaging the public when communicating the value of water when it involves wastewater, stormwater and watersheds. Through stories of success and why communications can fail, this book is written for wastewater utilities, watershed stewards and stormwater managers, engineers, operators, stakeholders, elected officials, and anyone that truly wants to make a difference in the public’s perception when it comes to the value of water.
Автор: Adriana Magdalena Название: Wastewater Treatment: Processes, Uses and Importance ISBN: 1536163708 ISBN-13(EAN): 9781536163704 Издательство: Nova Science Рейтинг: Цена: 22491.00 р. Наличие на складе: Невозможна поставка.
Описание: Wastewater Treatment: Processes, Uses and Importance begins by providing information about wastewater treatment and its various application, especially in agriculture sectors. Some information about wastewater use and regulation in Saudi Arabia is also discussed. The main characteristics of the natural oxidizing pond system and the activated sludge procedure are described and their performance in the abatement of physico-chemical, bacteriological and virological pollution is discussed. Next, the authors describe and discuss the most common wastewater treatment processes and the importance of the activated sludge process in wastewater treatment, as well as introduce the idea of implementing microbial fuel cells into the procedural design of wastewater treatment for resource recovery. This compilation also covers strategies aimed at minimizing the expense of water during every stage of energy and biofuel production, as well as forms of reuse and recycling that guarantee the utilization of wastewater in order to develop the circular economy in biogas and bioethanol plants. Characteristics of cultivated bio-granules including the number of granules, density, sludge volume index, settling velocity, and physical strength are studied and their performance in treating petroleum and other types of wastewater is investigated. Following this, the authors provide an overview of the achievements of studies in which anaerobic sequencing batch biofilm reactors have been used to co-digest agro-industrial wastes for the production of methane, with a focus on operational strategy and perspectives for energy estimations. The closing study discusses the characteristics of grey water and available methods for its recycling and reuse. Grey water is the wastewater from homes, excluding black water, which typically makes up 50 to 80% of wastewater.
Описание: This technical brief on the nexus between Water Sanitation and Hygiene (WASH) and antimicrobial resistance (AMR) presents six action areas for coordinated multi-sectoral action, for consideration and refinement in each country context.
Название: Wastewater Operator Certification Exam Prep ISBN: 1647170095 ISBN-13(EAN): 9781647170097 Издательство: Mare Nostrum (Eurospan) Рейтинг: Цена: 15800.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Pass your wastewater certification exam the first time! This study guide is specially developed to give wastewater operators practice answering questions that are similar in format and content to the questions that appear on certification exams.
Sample questions are provided for grades 1, 2, 3, and 4 wastewater operator certification exams, so you can study the questions that are specific to your grade level. Answers and references are included for questions. Math questions include the method to solve. AWWA’s most popular operator training aid, this study guide is specially designed to give water operators and students practice in answering questions that are similar in format and content to the questions that appear on state certification exams. Sample questions and answers for both wastewater treatment and collections systems are included.
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