Sludge Treatment and Disposal


Book Description

Sludge Treatment and Disposal is the sixth volume in the series Biological Wastewater Treatment. The book covers in a clear and informative way the sludge characteristics, production, treatment (thickening, dewatering, stabilisation, pathogens removal) and disposal (land application for agricultural purposes, sanitary landfills, landfarming and other methods). Environmental and public health issues are also fully described. About the series: The series is based on a highly acclaimed set of best selling textbooks. This international version is comprised by six textbooks giving a state-of-the-art presentation of the science and technology of biological wastewater treatment. Other titles in the series are: Volume 1: Waste Stabilisation Ponds; Volume 2: Basic Principles of Wastewater Treatment; Volume 3: Waste Stabilization Ponds; Volume 4: Anaerobic Reactors; Volume 5: Activated Sludge and Aerobic Biofilm Reactors




Faecal Sludge Management


Book Description

It is estimated that literally billions of residents in urban and peri-urban areas of Africa, Asia, and Latin America are served by onsite sanitation systems (e.g. various types of latrines and septic tanks). Until recently, the management of faecal sludge from these onsite systems has been grossly neglected, partially as a result of them being considered temporary solutions until sewer-based systems could be implemented. However, the perception of onsite or decentralized sanitation technologies for urban areas is gradually changing, and is increasingly being considered as long-term, sustainable options in urban areas, especially in low- and middle-income countries that lack sewer infrastructures. This is the first book dedicated to faecal sludge management. It compiles the current state of knowledge of the rapidly evolving field of faecal sludge management, and presents an integrated approach that includes technology, management, and planning based on Sandecs 20 years of experience in the field. Faecal Sludge Management: Systems Approach for Implementation and Operation addresses the organization of the entire faecal sludge management service chain, from the collection and transport of sludge, and the current state of knowledge of treatment options, to the final end use or disposal of treated sludge. The book also presents important factors to consider when evaluating and upscaling new treatment technology options. The book is designed for undergraduate and graduate students, and engineers and practitioners in the field who have some basic knowledge of environmental and/or wastewater engineering.




Sustainable Sludge Management


Book Description

Stricter regulations in many countries are increasing interest in sludge management processes which promote sustainability. Engineers and scientists are looking for viable options for resource management through the creation of value added-products from wastewater sludge. The ASCE's Technical Committee on Hazardous, Toxic, and Radioactive Waste Management identified the need to collect and present the latest information on recent trends in the bioconversion of sludge to value-added products like biopesticides, biosurfactants, enzymes, bioplastics, and biofertilizers/bioflocculants. The committee envisioned an easy-to-read book to serve as a reference for practicing professionals and as a textbook in undergraduate or graduate courses. Sustainable Sludge Management: Production of Value-Added Products offers an examination of wastewater sludge characteristics; a road to sustainability by converting sludge into value-added products; and detailed information on the various types of value-added products being created from sludge. This book will be valuable to undergraduate and graduate students in environmental engineering, educators, researchers, practicing engineers and scientists.




Sustainable Sludge Management: Resource Recovery For Construction Applications


Book Description

Converting sludge into construction materials is deemed to be a sustainable approach to alleviating sludge disposal problems and conserving natural resources.This compendium presents the state-of-the-art development in recycling sludge into construction materials. A research-based development of engineering products made from sludge for common construction applications such as bricks, aggregates and cement-replacement materials is outlined. In-depth discussions on the properties of the products and their processing technology, the technical suitability for construction applications, and experimental study and assessment of toxic or hazardous chemicals leached from the products are prominently highlighted. Challenges and prospect of sludge recycling are also included.Contributed by eminent authors who are recognized authority in the field of sludge treatment and reuse, the unique monograph is a useful reference guide for professionals, researchers, academics and graduate students majoring in waste management, environmental engineering, civil engineering and materials engineering.




Wastewater Sludge


Book Description

New Edition now available - click hereIt is well recognized everywhere that management of sludge derived from wastewater treatment is one of the most critical environmental issues, due to the very fast increase in sludge production as a result of sewerage extension, new installations and upgrading of existing facilities. Within this general picture, sludge is produced under different technical, economic and social contexts, thus requiring different approaches. This report is intended to give an overview of the sludge field in different parts of the world by summarising: current wastewater and sludge treatment provision; current and anticipated legislation; current research horizons; anticipated evolution of management approaches; and prospects for use of innovative and / or simple technologies. The report has been prepared for the Water21 Market Briefing Series in collaboration with the International Water Association's Specialist Group on Sludge Management. It is based on contributions from: Western Europe (Johannes Mueller); Eastern Europe (Pavel Jenicek); North America (Steve Dentel); Latin America and the Caribbean (Jose Barrios); East Asia (Nagaharu Okuno); South Asia and China (Duu-Jong Lee); Africa (Heidi Snyman); and Australasia (David Dixon and Terry Anderson). There is also an introduction and overview section (Ludovico Spinosa).







Faecal Sludge and Septage Treatment


Book Description

Faecal Sludge and Septage Treatment confronts the urgent need to treat increasing volumes of faecal sludge and septage in the rapidly expanding towns and cities of the global south. It discusses the urban contexts that influence treatment requirements and the overall septage treatment processes.




Sludge Thermal Hydrolysis: Application and Potential


Book Description

Thermal hydrolysis is revolutionizing wastewater treatment. Current treatment methods have evolved little since pioneering work in the late 19th and early 20th centuries. Subsequently, most wastewater treatment plants are not designed to meet modern drivers such as energy conservation and nutrient recovery. Additionally, sludge management is expensive and often not viewed in high regard by external stakeholders. By changing the properties of sewage sludge, thermal hydrolysis allows wastewater treatment works to become more efficient, enabling the treatment of greater flowrates to higher standards. Production of renewable energy from sludge is increased, whilst quantity of treated material reduced, which further decreases processing requirements and costs regardless of what they may be. This book, aimed at students and practitioners alike, describes the development of the technology, and highlights the design and economics by means of examples. Benefits and challenges related to thermal hydrolysis are also characterized alongside selected case-studies and ideas for future applications. Dr William (Bill) Barber has had a keen interest in thermal hydrolysis for numerous years and was instrumental in the development of Europe's largest facility as well as advising water utilities, consultants, researchers and government organizations on its potential to modernize wastewater treatment.




Wastewater Sludge Processing


Book Description

Reap the benefits of sludge The processing of wastewater sludge for use or disposal has been a continuing challenge for municipal agencies. Yet, whensludge is properly processed, the resulting nutrient-rich product--biosolids--can be a valuable resource for agriculture and other uses. Wastewater Sludge Processing brings together a wide body of knowledge from the field to examine how to effectively process sludge to reap its benefits, yet protect public health. Presented in a format useful as both a reference for practicing environmental engineers and a textbook for graduatestudents, this book discusses unit operations used for processing sludge and the available methods for final disposition of the processed product. Topics discussed include sludge quantities and characteristics, thickening and dewatering, aerobicand anaerobic digestion, alkaline stabilization, composting, thermal drying and incineration, energy consumption, and the beneficial use of biosolids. COMPREHENSIVE IN ITS COVERAGE, THE TEXT: * Describes new and emerging technologies as well as international methods * Compares different types of sludge processing methods * Explains both municipal and industrial treatment technologies Written by authors with decades of experience in the field, Wastewater Sludge Processing is an invaluable tool for anyone planning, designing, and implementing municipal wastewater sludge management projects.




Sludge


Book Description

How we became so burdened by red tape and unnecessary paperwork, and why we must do better. We've all had to fight our way through administrative sludge--filling out complicated online forms, mailing in paperwork, standing in line at the motor vehicle registry. This kind of red tape is a nuisance, but, as Cass Sunstein shows in Sludge, it can also also impair health, reduce growth, entrench poverty, and exacerbate inequality. Confronted by sludge, people just give up--and lose a promised outcome: a visa, a job, a permit, an educational opportunity, necessary medical help. In this lively and entertaining look at the terribleness of sludge, Sunstein explains what we can do to reduce it. Because of sludge, Sunstein, explains, too many people don't receive benefits to which they are entitled. Sludge even prevents many people from exercising their constitutional rights--when, for example, barriers to voting in an election are too high. (A Sludge Reduction Act would be a Voting Rights Act.) Sunstein takes readers on a tour of the not-so-wonderful world of sludge, describes justifications for certain kinds of sludge, and proposes "Sludge Audits" as a way to measure the effects of sludge. On balance, Sunstein argues, sludge infringes on human dignity, making people feel that their time and even their lives don't matter. We must do better.