Download or read book Development of a Continuous Flow Reactor for Aerobic Granular Sludge written by Tanner Devlin and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aerobic granular sludge is an advanced biological process that provides sustainable wastewater treatment. Compared to conventional wastewater treatment processes, aerobic granular sludge exhibits better settling, higher volumetric loading, reduced chemical and electrical requirements, and less biosolids production. Currently, aerobic granular sludge is only available as a sequencing batch reactor process. Sequencing batch reactors, however, would not be suitable for retrofit at most existing wastewater treatment facilities. Therefore, many facilities would not be able to realize the benefits of aerobic granular sludge unless significant changes to existing infrastructure were made. A more compatible technology, being a continuous flow reactor, would facilitate the implementation of aerobic granular sludge into existing facilities that would otherwise struggle with sequencing batch reactors. Thus, the goal of these studies was to develop a continuous flow reactor for aerobic granular sludge that would be suitable for retrofit into existing wastewater treatment facilities. To attain the goal, several items had to be addressed, including: 1) the suitability of aerobic granular sludge to treat low-strength, municipal wastewater; 2) the importance of hydrodynamic shear force for aerobic granular sludge stability; 3) the role of organic loading rate on aerobic granular sludge stability and performance; 4) the impact of selective wasting on granulation in continuous flow; and 5) the impact of reactor configuration on granulation in continuous flow. For more general items, such as suitability for low-strength wastewater and the role of hydrodynamic shear force, lab-scale sequencing batch reactors were used. The remaining tests were carried out in lab- and pilot-scale continuous flow reactors. Based on the results, design and operational parameters for an aerobic granular sludge-continuous flow reactor were developed and confirmed to be feasible for the treatment of low-strength, municipal wastewater.
Download or read book Aerobic Granular Sludge written by S. Bathe and published by IWA Publishing. This book was released on 2005-03-31 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aerobic Granular Sludge has recently received growing attention by researchers and technology developers, worldwide. Laboratory studies and preliminary field tests led to the conclusion that granular activated sludge can be readily established and profitably used in activated sludge plants, provided 'correct' process conditions are chosen. But what makes process conditions 'correct'? And what makes granules different from activated sludge flocs? Answers to these question are offered in Aerobic Granular Sludge. Major topics covered in this book include: Reasons and mechanism of aerobic granule formation Structure of the microbial population of aerobic granules Role, composition and physical properties of EPS Diffuse limitation and microbial activity within granules Physio-chemical characteristics Operation and application of granule reactors Scale-up aspects of granular sludge reactors, and case studies Aerobic Granular Sludge provides up-to-date information about a rapidly emerging new technology of biological treatment.
Download or read book Aerobic Granule Reactor Technology written by M. K. de Kreuk and published by IWA Publishing. This book was released on 2004-05-31 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new development for the treatment of domestic wastewater is a technology based on aerobic granular sludge. Granular sludge can be developed under specific process conditions. Because of the unique properties of this granular sludge, high volumetric loading rates of aeration tanks can be applied. Thanks to excellent settling properties, the separation of treated wastewater and granular sludge can take place at high hydraulic loading rates. Depending on the chosen process configuration good effluent quality can be obtained, complying with the stringent effluent requirements regarding nitrogen and phosphorus, which can be expected in the future. In this way aerobic granular sludge has the potential to contribute significantly to wastewater treatment management. This report describes the results of research carried out at the Technical University of Delft.
Download or read book Handbook of Fluidization and Fluid Particle Systems written by Wen-Ching Yang and published by CRC Press. This book was released on 2003-03-19 with total page 876 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference details particle characterization, dynamics, manufacturing, handling, and processing for the employment of multiphase reactors, as well as procedures in reactor scale-up and design for applications in the chemical, mineral, petroleum, power, cement and pharmaceuticals industries. The authors discuss flow through fixed beds, elutriation and entrainment, gas distributor and plenum design in fluidized beds, effect of internal tubes and baffles, general approaches to reactor design, applications for gasifiers and combustors, dilute phase pneumatic conveying, and applications for chemical production and processing. This is a valuable guide for chemists and engineers to use in their day-to-day work.
Download or read book Biosorption written by Jan Derco and published by BoD – Books on Demand. This book was released on 2018-07-18 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: Municipal and industrial wastewaters contain a wide spectrum of pollutants. Their effective removal presents a challenge for water treatment technology. Biosorption of nutrients and pollutants has been used in sewage treatment since the discovery of the activated sludge process. It is a passive uptake process by which pollutants are adsorbed on the surface of cell walls and/or dissolved in structures of microorganism cells that are present in sludge. Sorbed pollutants remain in the sludge and can be potentially released back into the environment depending on their condition and the reversibility of the pollutant-sludge interaction. An overview of typical biosorption applications for the removal of nutrients, organic pollutants, and metals in wastewater treatment is provided in different areas of their use for the protection of aquatic ecosystems and human health. This book will be of interest to operators of wastewater treatment plants and sludge treatment and disposal facilities as well as to researchers and university students in the field of environmental engineering.
Download or read book Management of Wastewater and Sludge written by Izharul Haq Farooqi and published by CRC Press. This book was released on 2023-05-12 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: Management of micropollutants and disinfection of byproducts in municipal wastewater and extraction of energy from the sludge produced in wastewater treatment plants is under constant focus. This book presents a detailed know-how regarding sustainable management of waste produced in municipal and industrial activities through novel state-of-the-art techniques used for the treatment of toxic industrial wastes and municipal wastewater. It deals with the management of municipal sludge and solid waste including leachates produced from landfill sites. It also provides detailed information for achieving the stringent standards set by regulatory bodies for municipal and industrial effluents. Features: Covers development of new novel reactor configurations for wastewater treatment. Describes handling and removal of emerging contaminants like pharmaceutical compounds, endocrine disruptors, and disinfection byproducts. Deliberates combination of wastewater and micropollution. Contains an in-depth discussion on treatment and disposal of fecal sludge. Highlights new economically feasible techniques to enhance biogas recovery from treatment plant sludges. This book is aimed at researchers and graduate students in environmental engineering, wastewater treatment, mechanical engineering, chemical engineering, and energy engineering.
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
Download or read book Sequencing Batch Reactor Technology written by Peter A. Wilderer and published by IWA Publishing. This book was released on 2001-03-01 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report highlights various types of SBRs, design considerations and procedures, equipment required, and experiences gained from practical applications. This report will help both designers and operators of SBRs understand how to use this technology successfully. The focus is on the application of fill-and-draw, variable volume, periodically operated, unsteady-state principles to activated sludge systems. Research findings are presented, from both the laboratory and pilot and full scale SBRs. Also included is a description of trends for technological developments and a discussion of open questions regarding research, development, application, and operation. Contents Introduction Fundamentals of Periodic Processes General Overview of SBR Applications Design of Activated Sludge SBR Plants Equipment and Instrumentation Practical Experiences Evaluation of SBR Facilities in Australia Evaluation of SBR Facilities in the USA and Canada Evaluation of SBR Facilities in Germany Evaluation of SBR Facilities in France Evaluation of SBR facilities in Japan Scientific and Technical Report No. 10
Download or read book Current Developments in Biotechnology and Bioengineering written by Xuan-Thanh Bui and published by Elsevier. This book was released on 2022-08-19 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Biological Wastewater Treatment Systems covers different recent advanced technologies, including green technologies, for biological wastewater treatment and wastewater reuse. The technologies involve novel biological processes and/or modified processes coupled with nano materials for improving the performance of the existing treatment processes. The book also describes treatment strategies for the current pollution from complex organic matter, nutrients, toxic substances, micro plastics and emerging micro pollutants in different water resources. The treatment processes describe the recent developed technologies for wastewater treatment and reuse such as biological nutrient removal, bioreactors, photobioreactors, membrane bioreactors, wetlands, algae-bacteria process, natural treatments, integrated/hybrid bio systems, etc. The novel bio systems include aerobic, anaerobic, facultative operation modes with various of types of microorganisms. Provides updated information on biological nutrient removal from wastewater Includes anaerobic and aerobic wastewater treatment processes Provides state-of-art information on design and operation of novel systems, including membrane bioreactors Describes hybrid treatment processes
Download or read book Engineering Granular Microbiomes written by David Gregory Weissbrodt and published by Springer Nature. This book was released on with total page 555 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Novel Approaches Towards Wastewater Treatment written by Gao Dawen and published by Springer Nature. This book was released on with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Initial Investigations of Aerobic Granulation in an Annular Gap Bioreactor written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This research describes the design, construction, and characterization of a novel annular gap bioreactor. The bioreactor was conceived as a tool for the shear-based control of activated sludge floc particle size in batch and continuous-run experiments. Initial experiments on the feasibility of cultivating aerobic granular sludge in the bioreactor are described. The bioreactor was found to experience turbulent Taylor vortex flow, rather than laminar Couette flow, at all rotational speeds tested. This flow regime is the result of inner cylinder rotation. Despite turbulent flow conditions, the bioreactor was found to behave approximately as a plug-flow device when not aerated, and as a complete-mix reactor when aerated. Floc size control was found to depend on bioreactor rotational speed for two sludges tested, with higher rotational speed leading to smaller particle size. Three experimental attempts at aerobic granular sludge cultivation in the annular gap bioreactor are described in this study. Although none of the three attempts was successful at producing aerobic granules, the experiments allowed critical control issues related to bioreactor operation and influent composition to be identified and addressed. The Bacterial and Eukaryal population dynamics during each run were tracked with denaturing gradient gel electrophoresis and rDNA sequence analysis, using methods developed or streamlined in the course of this research. The foundational work described in this study culminated in the development of a series of protocols and recommendations for the next phase of aerobic granular sludge investigation with this novel annular gap bioreactor.
Download or read book Sustainable Development 2 Volume Set written by C.A. Brebbia and published by WIT Press. This book was released on 2015-10-06 with total page 1312 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection of research papers, presented at meetings organised by the Wessex Institute of Technology (WIT), concerns a variety of issues relating to the area of sustainable development. WIT has a long and very successful record of organising conferences on the topic of sustainability, which requires an interdisciplinary approach. Any sustainable solutions that are derived solely from the perspective of a single discipline may have unintended damaging consequences that create new problems. Thus effective sustainable solutions require the collaboration of scientists and engineers from various disciplines, as well as planners, architects, environmentalists, policy makers, social scientists, and economists. The contents of this book reflect that interdisciplinary approach, and include topics under the main areas of: Sustainable development and planning; Disaster management; Air pollution; Urban transport; Ecosystems and Water resources management.
Download or read book Development in Wastewater Treatment Research and Processes written by Maulin P Shah and published by Elsevier. This book was released on 2022-05-12 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Development in Wastewater Treatment Research and Processes: Microbial Ecology, Diversity and Functions of Ammonia Oxidizing Bacteria covers up-to-date research on ammonia oxidizing bacteria and their application for the removal of ammonia nitrogen from wastewater treatment plants (WWTPs), discussing remaining gaps in their biology and functions. In this sense, this book features the application of the newly developed omics tools in order to develop less energy intensive and cost-effective biological processes for nitrogen removal from WWTPs. This makes this book an essential and unique book for advanced students, research scientists, environmental agencies and industries involved in wastewater treatment. Covers the application of different omics tools for studying the microbial ecology, diversity and function of ammonia oxidizing bacteria in wastewater treatment plants (WWTPs) Describes the role of ammonia oxidizing microorganisms in WWTPs Presents the microbial ecology of ammonia oxidizing bacteria in WWTPs Includes the microbial diversity of ammonia oxidizing bacteria Emphasizes important aspects of cutting-edge molecular tools in the study of metabolic pathways of ammonia oxidizing bacteria
Download or read book Mechanism and Design of Sequencing Batch Reactors for Nutrient Removal written by Derin Orhon and published by IWA Publishing. This book was released on 2005-05-31 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: The sequencing batch reactor (SBR) is perhaps the most promising and viable of the proposed activated sludge modifications today for the removal of organic carbon and nutrients. In a relatively short period, it has become increasingly popular for the treatment of domestic and industrial wastewaters, as an effective biological treatment system due to its simplicity and flexibility of operation. Mechanism and Design of Sequencing Batch Reactors for Nutrient Removal has been prepared with the main objective to provide a unified design approach for SBR systems, primarily based on relevant process stoichiometry. Specific emphasis has been placed upon the fact that such a unified design approach is also by nature the determining factor for the selection of the most appropriate cyclic operation scheme, the sequence of necessary phases and filling patterns for the particular application. The proposed basis for design is developed and presented in a stepwise approach to cover both organic carbon and nutrient removal, domestic and industrial wastewaters, strong and specific wastes. The merits of model simulation as an integral complement of process design, along with performance evaluation of SBR models are also emphasized. Scientific and Technical Report No. 19
Download or read book Development of a Novel Continuous Flow Reactor for Fast Competing Reactions with Gas Evolution written by Bernd Gigas and published by . This book was released on 2001 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mathematical Modelling and Computer Simulation of Activated Sludge Systems written by Jacek Makinia and published by IWA Publishing. This book was released on 2020-03-02 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mathematical Modelling and Computer Simulation of Activated Sludge Systems – Second Edition provides, from the process engineering perspective, a comprehensive and up-to-date overview regarding various aspects of the mechanistic (“white box”) modelling and simulation of advanced activated sludge systems performing biological nutrient removal. In the new edition of the book, a special focus is given to nitrogen removal and the latest developments in modelling the innovative nitrogen removal processes. Furthermore, a new section on micropollutant removal has been added. The focus of modelling has been shifting in the last years to models that can describe the performance of a whole plant (plant-wide modelling). The expanded part of this new edition introduces models describing the most important processes interrelated with the mainstream activated sludge systems as well as models describing the energy balance, operating costs and environmental impact. The complex process evaluation, including minimization of energy consumption and carbon footprint, is in line with the present and future wastewater treatment goals. By combining a general introduction and a textbook, this book serves both intermediate and more experienced model users, both researchers and practitioners, as a comprehensive guide to modelling and simulation studies. The book can be used as a supplemental material at graduate and post-graduate levels of wastewater engineering/modelling courses.