Factors Influencing The Reliability Of Enhanced Biological Phosphorus Removal
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Factors Influencing The Reliability Of Enhanced Biological Phosphorus Removal
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Author : J. B. Neethling
language : en
Publisher: IWA Publishing
Release Date : 2006-03-31
Factors Influencing The Reliability Of Enhanced Biological Phosphorus Removal written by J. B. Neethling and has been published by IWA Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-03-31 with Science categories.
Enhanced biological phosphorus removal (EBPR) has been used for decades to remove phosphorus from municipal wastewater because it allows facilities to meet water quality goals while minimizing chemical consumption and sludge production. However, there is still substantial variability in both the practices applied to achieve EBPR and the level of soluble phosphorus removal achieved. The objective of this research project was to develop information that can be used to help municipal wastewater treatment plants more efficiently and cost effectively remove phosphorus through EBPR processes. This project included detailed analysis of routine water quality and operating data, field testing observations, and special studies conducted over the course of the project to evaluate the variability of EBPR, factors influencing EBPR performance, and the relationship between EBPR and the presence of glycogen accumulating organisms (GAOs).
Insight Into Enhanced Biological Phosphorus Removal Ebpr System
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Author : Hasfalina Che Man
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2011-03
Insight Into Enhanced Biological Phosphorus Removal Ebpr System written by Hasfalina Che Man and has been published by LAP Lambert Academic Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-03 with categories.
This book is written to a fairly advanced level and should be interest to the graduate, postgraduate and scientists dealing with biological wastewater treatment especially relevant to phosphorus removal from wastewater. Though there are many excellent textbooks that elucidate the theory and design of biological wastewater treatment such as EBPR, it was nevertheless felt that there was a need for another book that would not only describe with the design approach but also cover the microbiological analysis related to the EBPR system.Chapters have been organized to address basic concepts related to the needs for biological treatment and design fundamentals of EBPR. It also covers the factors influencing the EBPR and types of reactors most commonly used. The final part involves the molecular methods used to study the polyphosphate-accumulating organisms (PAO) related to EBPR. It is hoped that this book will be referred by those related in engineering, environmentalists, government and regulatory bodies.
An Investigation Of Factors Affecting Biological Phosphorus Removal
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Author : Heather Lynn Merseth
language : en
Publisher:
Release Date : 1995
An Investigation Of Factors Affecting Biological Phosphorus Removal written by Heather Lynn Merseth and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Sewage categories.
Evaluation Of Factors Affecting The Performance Of Biological Phosphorus Removal In A Full Scale Wastewater Treatment Plant
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Author : Cesar Rossas Mota Filho
language : en
Publisher:
Release Date : 2001
Evaluation Of Factors Affecting The Performance Of Biological Phosphorus Removal In A Full Scale Wastewater Treatment Plant written by Cesar Rossas Mota Filho and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Sewage categories.
Advances In The Enhanced Biological Phosphorus Removal Process
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Author : María del Mar Vargas Prats
language : en
Publisher:
Release Date : 2009
Advances In The Enhanced Biological Phosphorus Removal Process written by María del Mar Vargas Prats and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.
Biological Phosphate Removal From Wastewaters
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Author : R. Ramadori
language : en
Publisher: Elsevier
Release Date : 2017-01-31
Biological Phosphate Removal From Wastewaters written by R. Ramadori and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-01-31 with Technology & Engineering categories.
Biological Phosphate Removal from Wastewaters contains the proceedings of an International Association on Water Pollution Research and Control Specialized Conference held in Rome, Italy on September 28-30, 1987. Contributors review advances that have been made in the removal of biological phosphates from wastewaters, both at the fundamental scientific level and in the practical application of the process. Topics range from the fundamental microbiology and biochemistry of the enhanced biological removal of phosphate to the practical full-scale plant experiences with phosphorus removal and sludge handling from such processes. This text is comprised of 43 chapters; the first of which describes the utilization of polyphosphate as an energy reserve in Acinetobacter sp. and activated sludge. Attention then turns to metabolic control in polyphosphate-accumulating bacteria and its role in enhancing biological phosphate removal. The biochemistry and energetics of biological phosphorus removal are also considered. The next section is devoted to process modeling and includes chapters that explore the kinetics of biological excess phosphorus removal; factors affecting anaerobic stabilization during biological phosphorus removal; and the behavior of magnesium in biological phosphate removal. In the next section, bench/pilot-scale studies are presented; one of which investigated the reduction of returned phosphorus from a sludge treatment process. The book concludes with a discussion on phosphate removal mechanisms and pilot- and full-scale experiences. This book will be of interest to students, practitioners, and policymakers in water pollution control.
Biological Phosphorus Removal Activated Sludge Process In Warm Climates
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Author : Cao Ye Shi
language : en
Publisher: IWA Publishing
Release Date : 2011-03-15
Biological Phosphorus Removal Activated Sludge Process In Warm Climates written by Cao Ye Shi and has been published by IWA Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-03-15 with Science categories.
Special Offer: Cao Ye Shi Author Set - Buy all three books together and save a total £76! Biological Phosphorus Removal Activated Sludge Process in Warm Climates presents the results of detailed research on the Enhanced Biological Phosphorus Removal (EBPR) activated sludge process under warm climate conditions (20oC - 30oC), which is part of the R & D program of Public Utilities Board (PUB) Singapore. The investigations and studies presented in this book are application-oriented, but at the same time the studies aim at an insightful understanding of the EBPR with the knowledge of the latest development in academic field. The focus points are: EBPR performance of laboratory-scale and full-scale activated sludge processes under the site conditions in warm climates The carbon competition and distribution between PAO and GAO (and denitrifiers) in the process The stoichiometry and kinetics of P-release, COD uptake in the anaerobic environment and P-uptake in the aerobic environment under different temperatures and operating conditions PAO and GAO population fractions, shift and dominance studies using FISH and batch tests The inter-relationships between the system performance, process design and the microbial community EBPR for industrial wastewater (high ratio of feed COD/P) treatment under warm climates. Together with the preceding book – Biological Nitrogen Removal Activated Sludge Process in Warm Climates – published by IWA in 2008, this book fills the gap of biological nutrient (nitrogen and phosphorus) removal in warm climates and provides unique experiences and knowledge for Process and design researchers and engineers in wastewater research, students and academic staff in Civil/Sanitation/Environment Departments, as well as Managers, Engineers and Consultants in water companies and water utilities. Visit the IWA WaterWiki to read and share material related to this title: http://www.iwawaterwiki.org/xwiki/bin/view/Articles/SELECTIONOFDOMESTICWASTEWATERTREATMENTSYSTEMSINWARMCLIMATEREGIONS
Effect Of Sulphide On Enhanced Biological Phosphorus Removal
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Author : Francisco Javier Rubio Rincon
language : en
Publisher: CRC Press
Release Date : 2017-03-03
Effect Of Sulphide On Enhanced Biological Phosphorus Removal written by Francisco Javier Rubio Rincon and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-03-03 with Technology & Engineering categories.
The enhanced biological removal of phosphorus (EBPR) is a popular process due to high removal efficiency, low operational costs, and the possibility of phosphorus recovery. Nevertheless, the stability of the EBPR depends on different factors such as: temperature, pH, and the presence of toxic compounds. While extensive studies have researched the effects of temperature and pH on EBPR systems, little is known about the effects of different toxic compounds on EBPR. For example, sulphide has shown to inhibit different microbial activities in the WWTP, but the knowledge about its effects on EBPR is limited. Whereas the sulphide generated in the sewage can cause a shock effect on EBPR, the continuously exposure to sulphide potentially generated in WWTP can cause the acclimatization and adaptation of the biomass. This research suggests that sulphate reducing bacteria can proliferate in WWTP, as they are reversibly inhibited by the recirculation of sludge through anaerobic-anoxic-oxic conditions. The research enhances the understanding of the effect of sulphide on the anaerobic-oxic metabolism of PAO. It suggests that the filamentous bacteria Thiothrix caldifontis could play an important role in the biological removal of phosphorus. It questions the ability of PAO to generate energy from nitrate respiration and its use for the anoxic phosphorus uptake. Thus, the results obtained in this research can be used to understand the stability of the EBPR process under anaerobic-anoxic-oxic conditions, especially when exposed to the presence of sulphide.
Determining The Potential For Enhanced Biological Phosphorus Removal Based On Wastewater Characteristics
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Author : Pedro Ramada Curto
language : en
Publisher:
Release Date : 2001
Determining The Potential For Enhanced Biological Phosphorus Removal Based On Wastewater Characteristics written by Pedro Ramada Curto and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
Experimental Study And Mathematical Modeling Of Enhanced Biological Phosphorus Removal Based On Aeration Effects
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Author : Parnian Izadi
language : en
Publisher:
Release Date : 2021
Experimental Study And Mathematical Modeling Of Enhanced Biological Phosphorus Removal Based On Aeration Effects written by Parnian Izadi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with categories.
Enhanced Biological Phosphorus Removal (EBPR), as a promising technology, has been implemented in many wastewater treatment plants (WWTP) worldwide, with high efficiency in phosphorus removal performance. In a well-operated EBPR, lower operational cost, reduced sludge production, and lower environmental impacts are achievable. Yet, with the proven capability of EBPR in efficient phosphorus removal, disturbance and periods of unexplained insufficient phosphorus removal have been detected in real WWTP in different cases due to loss of PAO biomass under presumed favorable conditions for EBPR. These complications may lead to process upset, system failure, and violation of discharge regulations. Disruption in process performance may originate from several external factors such as heavy rainfall, excessive nitrate loading to the anaerobic reactor, excessive aeration of activated sludge, or it may be a result of PAOs competition with other groups of microorganisms such as glycogen accumulating organisms (GAO). Therefore, the key in reaching low P-effluent levels is to optimize the operation and minimize the effect of inefficient factors. This Ph.D. study has focused on aeration as a crucial operational factor in the EBPR process in sequential batch reactor (SBR) systems. EBPR aerobic P-uptake, anaerobic P-release, and carbon storage of phosphorus accumulating organisms (PAOs) are closely related to oxygen mass transfer. The study is oriented to different aspects of aeration, addressing aeration concentration (dissolved oxygen (DO) concentration), aeration duration (aerobic hydraulic retention time (HRT)), and aeration pattern (continuous/intermittent). The performance of EBPR in SBRs under various aeration strategies was investigated for different DO concentrations (0.4-4 mg/L), HRT (120-320 minute), and aeration patterns of continuous and intermittent (25 to 50 minute on/off intermittent aeration/non-aeration intervals). Moreover, this study investigated the effect of reaching micro-aeration with adaptation strategies on EBPR performance. The development of steady and instant-DO reduction in different aeration strategies was studied in batch tests with enriched PAOs at different DO levels. Subsequently, comparative modeling using calibrated BioWin software was implemented for SBRs to predict the nutrient removal performance by changing DO concentration and the aerobic-HRT and understanding the effect of parameters on treatment performance to improve operation and control.