Sewage Sludge

Sewage sludge is the product resulting from wastewater treatment plants and aquaculture systems. It is an abundant waste biomass, as its production keeps increasing due to population growth, particularly in developing countries and intensified wastewater treatment plants in the developed world due to industrialisation. Effective management and handling of sewage sludge in an environmentally friendly way has become a matter of increasing importance globally, due to the potential health risks on the environment. Importantly, sewage sludge contains large amounts of organic components and nutrients; hence, resource recovery from such an abundant biomass is necessary. This comprehensive book presents an assessment into the impact of sewage sludge on the environment and provides the various treatment options for converting the sludge into useful resources. Biochemical (or biological) and thermochemical (or thermal) methods of sewage sludge treatment are covered. Through contributions from experts in diverse fields, this book has been organised to suit a variety of readers, including professionals and students who are interested in sewage sludge treatment as well as resource recovery from sewage sludge by using different and innovative technologies.

The treatment and disposal of sewage sludge is an expensive and environmentally sensitive problem that is growing worldwide. Sludge production is increasing whilst previously accepted methods for disposal are coming under pressure or even being phased out altogether so there is now an urgency to find cost-effective and innovative solutions that appease environmental and public pressures. The purpose of the conference recorded in these proceedings was to review the range of alternative disposal/recycling options for sewage sludge. The alternative uses considered are in land reclamation, forestry, compost and soil production, landfill, incineration, and energy and resource recovery. The papers presented include recent research findings and technological developments, as well as operational implementation of schemes, showing that beneficial re-use of sludge can be entirely compatible with a cost-effective and environmentally sensitive approach to sludge disposal.

APPLICATION OF SEWAGE SLUDGE IN INDUSTRIAL WASTEWATER TREATMENT Comprehensive reference examining activated sludge technologies in industrial wastewater treatment, combining a theoretical framework with practical methodologies Application of Sewage Sludge in Industrial Wastewater Treatment provides a roadmap to the methodologies for the treatment of industrial wastewaters from several major sectors integrating theory and practice, highlighting the importance of sewage sludge technologies in industrial wastewater treatment to clean up the environment from pollution caused by human activities, and assessing the applications of several existing activated sludge techniques and introduces new emerging technologies. All discussion within the text is based on a solid theoretical background. Application of Sewage Sludge in Industrial Wastewater Treatment covers key topics such as: Issues related to activated sludge treatment, such as biodegradability-based characterization, modelling, assessment of stoichiometric, and kinetic parameters and design Issues related to industrial pollution control, such as in-plant control, effect of pretreatment, and more Recently increasing quantity and complexity of toxic effluents, which can be bio remediable for plants and suitable microbes, whether natural or customized for specific purposes Ecological, profitable, and natural solutions designed to eliminate heavy metals, radionuclides, xenobiotic compounds, organic waste, pesticides, and more This reference provides an essential, one-of-a-kind, integrated approach for environmental microbiologists, biochemical engineers, environmental engineers, effluent treatment plant operators, and biologists and chemists at wastewater treatment plants.

This book is devoted to sewage sludge, its sustainable management, and its use and implications on soil fertility and crop production. The book traces the main chemical and biological properties of sewage sludge, and covers topics such as sewage sludge biostabilization and detoxification, biological and thermochemical treatment technologies, emerging nutrient recovery technologies, the role of microorganisms in sewage sludge management, and the sustainable use of sewage sludge as fertilizer in agriculture. The book offers a valuable asset for researchers, scholars and policymakers alike.

With the increased volume of sewage sludge generated as a result of extended sewerage and advanced wastewater treatments, its management is becoming of ever greater concern in both industrialised and emerging countries.During recent years there has been a worldwide movement toward a strategy of reusing and taking advantage of the energy content of residues, in particular of transforming a waste material produced by a treatment works (sludge) into a useful and usable product (biosolid). The selection of a use/disposal method or management system is often based on factors such as local traditions, personal experience, public opinion, etc., with less emphasis on the much more important technical factors, such as local geography, climate, land use, availability of disposal sites and regulatory constraints.Sludge into Biosolids gives up-to-date coverage of sludge treatments and of its use and disposal, focusing on the practical aspects of sludge/biosolids management. Operational variables and sludge properties affecting each management operation are discussed.Sludge into Biosolids provides a comprehensive overview for practitioners, graduates and researchers as well as politicians, decision-makers and public administrators, not only of the different options for using/disposing of sewage sludge and the requirements to be met for each of them, but also of the different methods for processing sewage sludge in order to modify its physical, chemical and biological properties, to meet the requirements for its utilization.ContentsPart I: Sludge Production and CharacterizationPart II:Options for Biosolids Utilization and Sludge Disposal Part III: Treatments and Operations

This book summarises current knowledge and experience of the properties of construction materials made from sewage sludge derivatives as well as assessing the potential savings and hazards of using sewage sludge as a construction material.