Wastewater Treatment And Technology

An Overview of Water and Wastewater; What Filtration Is All About; Chemical Additives that Enhance Filtration; Selecting the Right Filter Media; What Pressure- and Cake-Filtration Are All; Cartridge and Other Filters Worth Mentioning; What Sand Filtration is All About; Sedimentation, Clarification, Flotation, and Membrane Separation Technologies; Ion Exchange and Carbon Adsorption; Water Sterilization Technologies; Treating the Sludge; Glossary; Index.

This book discusses major technological advances in the treatment and re-use of wastewater. Its focus is on both novel treatment strategies and the modifications and adaptions of conventional processes to optimize the treatment of a complex variety of pollutants, including organic matter, chemicals and micropollutants in different water resources, as well as the integration of water treatment with bioelectricity production. Written by leading researchers in the field, it will be of interest to a wide range of researchers in both industry and academia.

Due to the heterogeneous nature of water streams from diverse domestic and industrial sources, and the equally diverse nature of pollutants that can be physical, chemical, and biological in nature, their treatment methods also must be varied in nature. Responding to this complex situation, Wastewater Treatment: Advanced Processes and Technologies p

This book introduces the 3R concept applied to wastewater treatment and resource recovery under a double perspective. Firstly, it deals with innovative technologies leading to: Reducing energy requirements, space and impacts; Reusing water and sludge of sufficient quality; and Recovering resources such as energy, nutrients, metals and chemicals, including biopolymers. Besides targeting effective C,N&P removal, other issues such as organic micropollutants, gases and odours emissions are considered. Most of the technologies analysed have been tested at pilot- or at full-scale. Tools and methods for their Economic, Environmental, Legal and Social impact assessment are described. The 3R concept is also applied to Innovative Processes design, considering different levels of innovation: Retrofitting, where novel units are included in more conventional processes; Re-Thinking, which implies a substantial flowsheet modification; and Re-Imagining, with completely new conceptions. Tools are presented for Modelling, Optimising and Selecting the most suitable plant layout for each particular scenario from a holistic technical, economic and environmental point of view.

Sludge Reduction Technologies in Wastewater Treatment Plants is a review of the sludge reduction techniques integrated in wastewater treatment plants with detailed chapters on the most promising and most widespread techniques. The aim of the book is to update the international community on the current status of knowledge and techniques in the field of sludge reduction. It will provide a comprehensive understanding of the following issues in sludge reduction: principles of sludge reduction techniques; process configurations; potential performance; advantages and drawbacks; economics and energy consumption. This book will be essential reading for managers and technical staff of wastewater treatment plants as well as graduate students and post-graduate specialists.

This book examines the processes available for the various stages of treatment of wastewater, beginning with the preliminary processes of screening, grit removal and storm water separation and ending with tertiary treatment and sludge disposal. Key Coverage Considerable emphasis on the biological processes that are used for the oxidation of BOD and the removal of nitrogen and phosphorous. Presents options for the treatment of industrial wastewater, including anaerobic digestion, physico-chemical processes and enhanced oxidation are also discussed. Examines what the future may bring and how this may affect the technology of wastewater treatment. This book provides authoritative and comprehensive information in an area where little is available

WASTEWATER TREATMENT TECHNOLOGIES Globally, the practice of wastewater treatment before discharge is inconsistent. The United Nations World Water Development Report (2017) estimated that, globally, over 80% of all wastewater is discharged without treatment. The discharge of untreated or inadequately treated wastewater into the environment results in the pollution of surface water, soil and groundwater. According to the WHO, water-related diseases kill around 2.2 million people globally each year, mostly children in developing countries. We need to understand that wastewater is not merely a water management issue – it affects the environment, all living beings, and can have direct impacts on economies. The establishment of UN Sustainable Development Goal 6 (Clean Water and Sanitation), which aims to ensure availability and sustainable management of water and sanitation for all, reflects the increased attention on water and wastewater treatment issues in the global political agenda. Water reuse is one of the most efficient, cost effective and eco-friendly ways to ensure water resilience. Embedding sustainability into wastewater treatment is the best opportunity for industries to drive smarter innovation and efficient wastewater treatment. The modern concept of industrial wastewater treatment is moving away from conventional design. Wastewater treatment technology is moving towards extreme modular design using smart and sustainable technology. This book is intended as a reference book for all wastewater treatment professionals and operational personnel. It may also be used as a textbook on graduate and postgraduate courses in the field of wastewater treatment and management. The book takes a holistic view of the practical problems faced by industry and provides multiple needs-based solutions to tackle wastewater treatment and management issues. It elaborates on selection of technology and their design criteria for different types of wastewater. This will enable engineering students and professionals to expand their horizons in the fields of wastewater treatment and management.