The Ecology Of Waste Water Treatment

The Ecology of Waste Water Treatment covers the principles of biology considered necessary for an understanding of some ecological aspects of wastewater treatment. This book is composed of seven chapters, and begins with an overview of the significant biological aspects related to wastewater treatment. The subsequent chapters examine the factors determining the dominant organisms in sludge and bacteria beds. Other chapters highlight the role of biological oxidation in wastewater treatment and the ecological parameters in the design and operation of activated sludge plants. A chapter provides practical methods of maintaining population balance at a low level of microorganisms. The final chapter considers the operational requirements necessary to ensure suitable ecological conditions for bacteria beds. This book is of value to microbiologists, ecologists, and environment-related fields.

Microbial Ecology of Wastewater Treatment Plants presents different methods and techniques used in microbial ecology to study the interactions and evolution of microbial populations in WWTPs, particularly the new molecular tools developed in the last decades. These molecular biology-based methods (e.g. studies of DNA, RNA and proteins) provide a high resolution of information compared to traditional ways of studying microbial wastewater populations, such as microscopic examination and culture-based methods. In addition, this book addresses the ability of microorganisms to degrade environmental pollutants. Describes application of different Omics tools in Wastewater treatment plants (WWTPs) Demonstrates the role of microorganisms in WWTPs Includes discussions on the microbial ecology of WWTPs Covers the microbial diversity of activated sludge Emphasizes cutting-edge molecular tools

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.

The new science of ecological engineering is winning increasing acceptance all over the world. Established industrial economies like Sweden and the United States are investing more in it as initial skepticism and regulatory hurdles are giving way to burgeoning investments by companies and municipalities, increased research activity, and great interest by the public. Less-developed countries are investigating inexpensive and effective ways to build their wastewater treatment infrastructure with ecological engineering. Eastern European countries and the former Soviet Union are turning to ecological engineering to solve their acute pollution problems. Ecological Engineering for Wastewater Treatment, Second Edition, presents comprehensive coverage of topics ranging from wastewater source separation at the household level to the use of huge, natural wetlands. It is an updated description of the state of the art, intended as a tool for teaching and inspiring the management of wastewater as a resource, one of the keys to sustainable development. In this Second Edition, existing chapters have been updated, new chapters have been added, and a comprehensive index has been added.

This comprehensive text provides the reader with both a detailed reference and a unified course on wastewater treatment. Aimed at scientists and engineers, it deals with the environmental and biological aspects of wastewater treatment and sludge disposal.The book starts by examining the nature of wastewaters and how they are oxidized in the natural environment. An introductory chapter deals with wastewater treatment systems and examines how natural principles have been harnessed by man to treat his own waste in specialist reactors. The role of organisms is considered by looking at kinetics, metabolism and the different types of micro-organisms involved. All the major biological process groups are examined in detail, in highly referenced chapters; they include fixed film reactors, activated sludge, stabilization ponds, anaerobic systems and vegetative processes. Sludge treatment and disposal is examined with particular reference to the environmental problems associated with the various disposal routes. A comprehensive chapter on public health looks at the important waterborne organisms associated with disease, as well as removal processes within treatment systems. Biotechnology has had an enormous impact on wastewater treatment at every level, and this is explored in terms of resource reuse, biological conversion processes and environmental protection. Finally, there is a short concluding chapter that looks at the sustainability of waste water treatment. The text is fully illustrated and supported by over 3000 references./a

The new science of ecological engineering is winning increasing acceptance all over the world. Established industrial economies like Sweden and the United States are investing more in it as initial skepticism and regulatory hurdles are giving way to burgeoning investments by companies and municipalities, increased research activity, and great inter

From the Preface This text is designed to provide a fundamental knowledge of the phenomenon known as self-purification in streams. Sufficient background information and references on stream ecology and self-purification are presented to provide readers with an understanding of the various concepts under discussion. Moreover, along with the stream self-purification process and biological indication of stream health, water quality and source sampling are discussed in depth. Wastewater and water treatment personnel, students, specialists, water resource managers, ecologists, regulators, and water pollution control personnel concerned with activities and preventive measures to prevent stream pollution will find this consolidated information important. Other professional wastewater- and water-related staff from governmental agencies, municipal water supply and wastewater systems, public health departments, and environmental health agencies will also find the information valuable. This text, however, is also intended for readers and groups interested in and concerned with stream pollution and stream contamination control. This text can be used as a basic or supplemental text in undergraduate and technical school courses in aquatic ecology or stream quality enhancement and protection. It can also be consulted as an environmental reference text by school, municipal, and water resource professionals.