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Stabilization Of Thickened Activated Sludge Through The Anoxic Aerobic Digestion Process
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Book Synopsis Stabilization of Thickened-activated Sludge Through the Anoxic-aerobic Digestion Process by : Ming Ying Tan
Download or read book Stabilization of Thickened-activated Sludge Through the Anoxic-aerobic Digestion Process written by Ming Ying Tan and published by . This book was released on 2002 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aerobic digestion is widely used to treat waste-activated sludge and thickened sludge from wastewater treatment plant due to its shorter retention time and achieving the same efficiency in solids volume reduction compared to anaerobic digestion. However, the supernatant and filtrate from the aerobic digestion system contain high concentration of suspended solids. The nitrogen which had been embedded in sludge is solubilized to form ammonical and nitric nitrogen which in turn tranferred to the liqour and cause the increase of nitrogen loading in sewage treatment plant. In this study, anoxic-aerobic digestion is applied to remove both the mixed-liquor volatile suspended solids (MLVSS) and soluble nitrogen simultaneously. The objective of the study are to investigate and evaluate the removal efficiency of both MLVSS and soluble nitrogen by anoxic-aerobic digestion and compared to the aerobic control digesters, with and without lime control. By applying anoxic-acrobic, a comparable MLVSS was gained to aerobic digestion. 66.12% and 63.00% of MLVSS destruction was found in both anoxic-aerobic digesters, with and without methanol addition respectively. Aerobic with lime control tended to have the greatest solids reduction, which was 66.30%. Percent MLVSS reduction in aerobic control digester was 60.76%, the lowest among the digester. There was no unfavorable condition in anoxic-aerobic digesters due to the well maintenance of alkalinity and mixed-liquor pH levels naturally. The endogenous decay coeeficient were found 0.0581 day-1 and 0.0548 day-1 in anoxic-aerobic digester with and without methanol addition respectively, similar rate with lime control digester of 0.0584 day-1 in decay coeffiecient. Nitrate generated in situ due to nitrification was utilized through endogenous nitrate respiration (ENR) during anoxic periods. Thus, reduced nitrates levels in the supernatant in anoxic-aerobic digesters. In this study, it showed that anoxic-aerobic digestion yielded comparable percent solids reduction, despite less energy consumption. It maintained neutral mixed-liquor pH levels without any chemical or lime control. In addition, significant removal of soluble nitrogen and reduced in phosphorus released were realized.
Book Synopsis Activated Sludge and Aerobic Biofilm Reactors by : Marcos Von Sperling
Download or read book Activated Sludge and Aerobic Biofilm Reactors written by Marcos Von Sperling and published by IWA Publishing. This book was released on 2007-03-30 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: Activated Sludge and Aerobic Biofilm Reactors is the fifth volume in the series Biological Wastewater Treatment. The first part of the book is devoted to the activated sludge process, covering the removal of organic matter, nitrogen and phosphorus.A detailed analysis of the biological reactor (aeration tank) and the final sedimentation tanks is provided. The second part of the book covers aerobic biofilm reactors, especially trickling filters, rotating biological contractors and submerged aerated biofilters. For all the systems, the book presents in a clear and informative way the main concepts, working principles, expected removal efficiencies, design criteria, design examples, construction aspects and operational guidelines. 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 6: Sludge Treatment and Disposal
Book Synopsis Aerobic Stabilization of Waste Activated Sludge by : David B. Cohen
Download or read book Aerobic Stabilization of Waste Activated Sludge written by David B. Cohen and published by . This book was released on 1975 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of Parameters to Measure Sludge Aerobic Stabilization by : Rajagopal Krishnamoorthy
Download or read book Evaluation of Parameters to Measure Sludge Aerobic Stabilization written by Rajagopal Krishnamoorthy and published by . This book was released on 1987 with total page 834 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Anoxic-aerobic Digestion of Waste Activated Sludge by : Arthur Peter Christopher Warner
Download or read book Anoxic-aerobic Digestion of Waste Activated Sludge written by Arthur Peter Christopher Warner and published by . This book was released on 1984* with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Activated Sludge by : Wesley Eckenfelder
Download or read book Activated Sludge written by Wesley Eckenfelder and published by CRC Press. This book was released on 1998-08-04 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents: Process Theory Kinetics and Sludge Quality Control: Activated Sludge Process - Process Theory - Activated Sludge Separation Problems - References Activated Sludge Treatment of Municipal Wastewater U.S.A. Practice: General Approach - Clarifier Design - Aeration Tank (Reactor) Design - Appurtenance Design - Configurations - ReferencesEurope
Book Synopsis Activated Sludge: Developments And Sustainable Solutions by : Nicholas F Gray
Download or read book Activated Sludge: Developments And Sustainable Solutions written by Nicholas F Gray and published by World Scientific. This book was released on 2023-02-27 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt: Activated sludge is the most widely used biological wastewater treatment process globally to date, although its high energy demand makes it a major contributor of greenhouse gas emissions. Over recent decades it has been constantly modified and retrofitted to treat ever higher loads or improve effluent standards which have often resulted in even greater carbon emissions. Conventional activated sludge treatment is at a crossroads where new sustainable solutions are required if we are to protect the quality of our rivers and meet net-zero carbon targets.The book details current operation and design with special emphasis on the biological aspects of the process. From the microbial kinetics to the fascinating process of floc formation and development, the book explores the development of our understanding of the process looking at new sustainable designs, including biological nutrient removal and new aeration systems. Sludge separation problems and control options are explained, with a trouble-shooting guide to non-bulking problems. Environmental issues including noise, odor, aerosols, micro-plastics and nanoparticles are all reviewed, as is pathogen removal and the problem of antibiotic resistant genes and bacteria. The development of membrane bioreactors has increased process reliability and effluent quality, while integrated fixed-film activated sludge processes are more efficient and compact. The book concludes by exploring how activated sludge can become more sustainable, for example, by carbon harvesting and byproduct recovery.This interdisciplinary book is essential reading for both engineers and scientists whether training at university or practitioners and consultants in the wastewater industry.Related Link(s)
Book Synopsis Two-phase Anaerobic Digestion for Enhanced Stabilization and Methanation of Sewage Sludge by :
Download or read book Two-phase Anaerobic Digestion for Enhanced Stabilization and Methanation of Sewage Sludge written by and published by . This book was released on 1992 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Activated Sludge written by N. F. Gray and published by Oxford University Press, USA. This book was released on 1990 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Activated sludge is the most widely used biological wastewater treatment process in the world, both for domestic and industrial purposes. This book reviews the major theoretical concepts and practical operational factors, and describes the complexities inherent in the process, which depends on a dense microbial population mixed in wastewater under specific aerobic conditions. It is an ideal reference source for scientists, and a useful troubleshooting guide for practicing engineers and plant operators.
Book Synopsis Anoxic-aerobic Digestion of Waste Activated Sludge by : Christopher Jay Jenkins
Download or read book Anoxic-aerobic Digestion of Waste Activated Sludge written by Christopher Jay Jenkins and published by . This book was released on 1988 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sludge Reduction Technologies in Wastewater Treatment Plants by : Paola Foladori
Download or read book Sludge Reduction Technologies in Wastewater Treatment Plants written by Paola Foladori and published by IWA Publishing. This book was released on 2010-07-31 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Manual for Activated Sludge Sewage Treatment by : Brian L. Goodman
Download or read book Manual for Activated Sludge Sewage Treatment written by Brian L. Goodman and published by . This book was released on 1971 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Operator's Guide to Biological Nutrient Removal (BNR) in the Activated Sludge Process by : Michael H. Gerardi
Download or read book An Operator's Guide to Biological Nutrient Removal (BNR) in the Activated Sludge Process written by Michael H. Gerardi and published by Chemical Publishing Company. This book was released on 2016-05-19 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents - List of Tables - List of Figures - PART ONE: NITRIFICATION - Chapter 1 Introduction - Chapter 2 Nitrogenous and Phosphorous Compounds - Chapter 3 Nitrification: The Basics - Chapter 4 Nitrifying Bacteria - Chapter 5 Nitrification and Limiting Factors - Chapter 6 Promoting Nitrification - PART TWO: DENITRIFICATION - Chapter 7 Denitrification: The Basics - Chapter 8 Denitrifying Bacteria - Chapter 9 Denitrification and Limiting Factors - PART THREE: BIOLOGICAL PHOSPHORUS REMOVAL - Chapter 10 Biological Phosphorus Removal: The Basics - Chapter 11 EBPR: Process Control - Abbreviations and Acronyms - Glossary - Bibliography - 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. -
Download or read book Activated Sludge written by Jiri Wanner and published by CRC Press. This book was released on 2014-07-22 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: The result of over 25 years of research, this book is a concise guide to the microbiological and technical aspects of bulking and foaming control. It stresses practical control measures based on kinetic and metabolic selection theories and supported by case histories. Topics include: biochemical processes in wastewater treatment, evaluation of separation problems, settling and foaming principles, bulking and foaming control methods, and system design. More than 100 tables and figures illustrate complex processes, and over 500 references provide a detailed compendium of available resources. Cross-references provide background of a problem, its connection to similar problems, and their solutions.
Book Synopsis Anaerobic Digestion of Waste Activated Sludge by : Roy L. Belser
Download or read book Anaerobic Digestion of Waste Activated Sludge written by Roy L. Belser and published by . This book was released on 1983 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Formation, characterization and mathematical modeling of the aerobic granular sludge by : Bing-Jie Ni
Download or read book Formation, characterization and mathematical modeling of the aerobic granular sludge written by Bing-Jie Ni and published by Springer Science & Business Media. This book was released on 2012-07-25 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aerobic granular sludge technology will play an important role as an innovative technology alternative to the present activated sludge process in industrial and municipal wastewater treatment in the near future. Intended to fill the gaps in the studies of aerobic granular sludge, this thesis comprehensively investigates the formation, characterization and mathematical modeling of aerobic granular sludge, through integrating the process engineering tools and advanced molecular microbiology. The research results of this thesis contributed significantly to the advance of understanding and optimization of the bacterial granulation processes, the next generation of technology for cost-effective biological wastewater treatment. Dr. Bing-Jie Ni works at Advanced Water Management Centre (AWMC) of The University of Queensland, Australia.
Book Synopsis Anoxic Sludge Stabilization of Waste Activated Sludge by : Michael Heunggu Kim
Download or read book Anoxic Sludge Stabilization of Waste Activated Sludge written by Michael Heunggu Kim and published by . This book was released on 1989 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
