Optimization And Modeling Of Combined Biological And Physical Chemical Phosphorus Removal In Wastewater Treatment Plants With Intermittent Aeration

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Optimization and modeling of combined biological and physical-chemical phosphorus removal in wastewater treatment plants with intermittent aeration

Author : Erika Varga
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (137 download)

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Book Synopsis Optimization and modeling of combined biological and physical-chemical phosphorus removal in wastewater treatment plants with intermittent aeration by : Erika Varga

Download or read book Optimization and modeling of combined biological and physical-chemical phosphorus removal in wastewater treatment plants with intermittent aeration written by Erika Varga and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'objectif de la thèse est d'analyser les problèmes opérationnels et de modéliser l'élimination des nutriments dans les petites/moyennes installations qui mettent en œuvre une élimination combinée biologique et physico-chimique du phosphore. Le procédé étudié utilise une aération alternée optimisée pour une élimination complète de l'azote par nitrification et dénitrification, un système très représentatif en France. Comme une zone anaérobie est également présente, l'élimination biologique du phosphore est effectuée et combinée avec l'ajout de FeCl3 pour garantir que la qualité des effluents est conforme aux normes de l'UE. Afin de maximiser la fraction biologique de l'élimination du P, les paramètres d'aération et les temps de rétention aérobie/anoxique/anaérobie ont été analysés et optimisés par la programmation d'un système de contrôle automatisé. La libération de P secondaire lors de l'extraction intermittente des boues (et le retour de la liqueur de boue dans la zone anaérobie) a été observée. Une relocalisation du dosage de fer a été proposée du bassin d'aération vers spécifiquement la liqueur de boue avant son retour en tête. Ce changement permet à l'opérateur d'économiser sur les coûts des produits chimiques. Pour évaluer d'autres scénarios, des simulations ont été réalisées avec le logiciel Sumo. La simulation du procédé en fonctionnement régulier a mis en évidence quelques écarts de modélisation propres à ces conditions, à savoir les rejets de phosphore (en bassin non aéré et rejet secondaire lors de la déshydratation) et les transformations redox du Fer dans les boues activées. Plusieurs expériences spécifiques ont été menées pour répondre à ces questions. Comme la récupération du P est une préoccupation émergente (et mal mise en œuvre pour les usines de petite/moyenne taille), il est essentiel d'analyser ces interactions en détail afin de trouver un produit de récupération idéal pour chaque condition. Les boues physico-chimiques, contenant du fer, sont idéales pour la récupération de vivianite, pour laquelle une compréhension approfondie de la réduction du fer est essentielle. Cette thèse présente une étude complète des procédés de réduction du fer dans les boues activées. Avec les résultats des expériences, les observations dans l'installation et la littérature des recherches antérieures, des modifications/extensions au modèle ont été recommandées. Le modèle a été calibré par rapport à de nombreuses données de l'installation avec différentes conditions d'exploitation et des données mesurées à partir d'essais de réacteurs discontinus. Le modèle calibré peut simuler correctement le fonctionnement de l'installation dans différentes conditions et peut également être utilisé pour évaluer différents scénarios de traitement et de récupération.

Biological Phosphorus Removal

Author : P. M. J. Janssen
Publisher : IWA Publishing
ISBN 13 : 9781843390121
Total Pages : 228 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Biological Phosphorus Removal by : P. M. J. Janssen

Download or read book Biological Phosphorus Removal written by P. M. J. Janssen and published by IWA Publishing. This book was released on 2002-05-31 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biological phosphorus (bio-P) removal has become a reliable and well-understood process within wastewater treatment, despite being one of the most complex processes in the activated sludge process. Extended fundamental and full-scale research has been carried out into the bio-P process and the state-of-the-art is described in this report. A summarising historical overview gives insight into the establishment of the appropriate microbiological and biochemical basis of the process and the development of bio-P configurations in practice. Aspects of the bio-P process that have a direct influence on the efficiency of phosphorus removal are subjected to an in-depth investigation. This report presents guidelines for design and dimensioning in order to introduce and/or optimise the bio-P process in practice. Twelve bio-P installations are extensively described and the operational results and experiences are related to existing bio-P knowledge and guidelines. Based on a number of parameters, a comparison is made between the described bio-P plants. A steady state model is verified with extensive periods of practical experience of the plants. The bio-P model, which is provided on CD-ROM (available for download here), offers a reliable insight into the bio-P process, coupled with sensitivity analyses regarding wastewater characteristics and process parameters for the anaerobic volume and the P-ortho concentration in the final effluent. The report ends with a systematic approach to the design of the bio-P process, based on the background of the bio-P process itself, much practical experience and the analysis of operational bio-P plants. Also presented is a systematic approach to tackle operational aspects of the bio-P process in order to generate an acceptable low P effluent concentration. This optimisation of the bio-P process operation is supported by a decision diagram. Biological Phosphorus Removal will be an invaluable source of information for all those concerned with wastewater treatment, including plant managers, process designers, consultants and researchers.

Experimental Study and Mathematical Modeling of Enhanced Biological Phosphorus Removal Based on Aeration Effects

Author : Parnian Izadi
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (136 download)

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Book Synopsis Experimental Study and Mathematical Modeling of Enhanced Biological Phosphorus Removal Based on Aeration Effects by : Parnian Izadi

Download or read book Experimental Study and Mathematical Modeling of Enhanced Biological Phosphorus Removal Based on Aeration Effects written by Parnian Izadi and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Phosphorus and Nitrogen Removal from Municipal Wastewater

Author : RichardI. Sedlak
Publisher : Routledge
ISBN 13 : 1351424939
Total Pages : 258 pages
Book Rating : 4.3/5 (514 download)

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Book Synopsis Phosphorus and Nitrogen Removal from Municipal Wastewater by : RichardI. Sedlak

Download or read book Phosphorus and Nitrogen Removal from Municipal Wastewater written by RichardI. Sedlak and published by Routledge. This book was released on 2018-04-27 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: This valuable new book offers practical guidance regarding the design and operation of systems for reducing effluent nitrogen and phosphorus. The principles of nitrogen and phosphorus removal are discussed, including sources of nitrogen and phosphorus in wastewater, removal options, nitrogen and phosphorus transformations in treatment, process selection, and treatment. The book also covers the design and operation of nitrogen and phosphorus removal systems, including system options, system design, facility design, facility costs, and operation. Practical case studies are provided as examples of successful system implementations that may be able to help you decide what will work best in your plant.

Phosphorus and Nitrogen Removal from Municipal Wastewater

Author : Richard I. Sedlak
Publisher : CRC Press
ISBN 13 : 9780873716833
Total Pages : 258 pages
Book Rating : 4.7/5 (168 download)

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Book Synopsis Phosphorus and Nitrogen Removal from Municipal Wastewater by : Richard I. Sedlak

Download or read book Phosphorus and Nitrogen Removal from Municipal Wastewater written by Richard I. Sedlak and published by CRC Press. This book was released on 1991-10-07 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: This valuable new book offers practical guidance regarding the design and operation of systems for reducing effluent nitrogen and phosphorus. The principles of nitrogen and phosphorus removal are discussed, including sources of nitrogen and phosphorus in wastewater, removal options, nitrogen and phosphorus transformations in treatment, process selection, and treatment. The book also covers the design and operation of nitrogen and phosphorus removal systems, including system options, system design, facility design, facility costs, and operation. Practical case studies are provided as examples of successful system implementations that may be able to help you decide what will work best in your plant.

Selected Water Resources Abstracts

Author :
Publisher :
ISBN 13 :
Total Pages : 772 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Selected Water Resources Abstracts by :

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1990 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Selected Water Resources Abstracts

Author :
Publisher :
ISBN 13 :
Total Pages : 1344 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Selected Water Resources Abstracts by :

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1990 with total page 1344 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Modeling Biological Phosphorus Removal in Activated Sludge Systems

Author : D. Brdanovic
Publisher : CRC Press
ISBN 13 : 1000657981
Total Pages : 272 pages
Book Rating : 4.0/5 (6 download)

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Book Synopsis Modeling Biological Phosphorus Removal in Activated Sludge Systems by : D. Brdanovic

Download or read book Modeling Biological Phosphorus Removal in Activated Sludge Systems written by D. Brdanovic and published by CRC Press. This book was released on 2021-10-01 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text looks at different effects on the process of biological phosphorus removal. Topics include: biological phosphorus removal processes; process and molecular ecological studies; and the effect of potassium limitation on biological phosphorus removal.

Optimizing Phosphorus Removal in an A/O Plant

Author : Oula Khodor Shebab
Publisher :
ISBN 13 :
Total Pages : 292 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Optimizing Phosphorus Removal in an A/O Plant by : Oula Khodor Shebab

Download or read book Optimizing Phosphorus Removal in an A/O Plant written by Oula Khodor Shebab and published by . This book was released on 1996 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Biological Phosphate Removal from Wastewaters

Author : R. Ramadori
Publisher : Elsevier
ISBN 13 : 1483160599
Total Pages : 405 pages
Book Rating : 4.4/5 (831 download)

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Book Synopsis Biological Phosphate Removal from Wastewaters by : R. Ramadori

Download or read book Biological Phosphate Removal from Wastewaters written by R. Ramadori and published by Elsevier. This book was released on 2017-01-31 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Optimization of Biological Phosphorus and Ammonia Removal in a Combined Fixed and Suspended Growth Wastewater Treatment System

Author :
Publisher :
ISBN 13 :
Total Pages : 58 pages
Book Rating : 4.:/5 (933 download)

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Book Synopsis Optimization of Biological Phosphorus and Ammonia Removal in a Combined Fixed and Suspended Growth Wastewater Treatment System by :

Download or read book Optimization of Biological Phosphorus and Ammonia Removal in a Combined Fixed and Suspended Growth Wastewater Treatment System written by and published by . This book was released on 1994 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project was conducted to optimize design and operational criteria for enhanced biological phosphorus removal and nitrification of ammonia in the fixed growth reactor-suspended growth reactor (FGR-SGR) process. The research completed the investigation of optimum hydraulic retention times for biological phosphorus removal in both the unaerated and aerated phases of the suspended growth components of the FGR-SGR system, including an assessment of the possibility of reducing suspended growth aeration requirements by using oxidized forms of nitrogen rather than dissolved oxygen for biological phosphorus uptake; investigated the effects on biological phosphorus removal and nitrification of varying the internal recycle flow rates; and investigated the optimum solids retention time, or the optimum operating mixed liquor suspended solids concentration, in the suspended growth component of the system for biological phosphorus removal and nitrification-denitrification.

Treatise on Water Science

Author :
Publisher : Newnes
ISBN 13 : 0444531998
Total Pages : 2131 pages
Book Rating : 4.4/5 (445 download)

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Book Synopsis Treatise on Water Science by :

Download or read book Treatise on Water Science written by and published by Newnes. This book was released on 2010-09-01 with total page 2131 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water quality and management are of great significance globally, as the demand for clean, potable water far exceeds the availability. Water science research brings together the natural and applied sciences, engineering, chemistry, law and policy, and economics, and the Treatise on Water Science seeks to unite these areas through contributions from a global team of author-experts. The 4-volume set examines topics in depth, with an emphasis on innovative research and technologies for those working in applied areas. Published in partnership with and endorsed by the International Water Association (IWA), demonstrating the authority of the content Editor-in-Chief Peter Wilderer, a Stockholm Water Prize recipient, has assembled a world-class team of volume editors and contributing authors Topics related to water resource management, water quality and supply, and handling of wastewater are treated in depth

Process Design Manual for Phosphorus Removal

Author : Shimek, Roming, Jacobs, and Finklea (Firm)
Publisher :
ISBN 13 :
Total Pages : 296 pages
Book Rating : 4.3/5 (129 download)

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Book Synopsis Process Design Manual for Phosphorus Removal by : Shimek, Roming, Jacobs, and Finklea (Firm)

Download or read book Process Design Manual for Phosphorus Removal written by Shimek, Roming, Jacobs, and Finklea (Firm) and published by . This book was released on 1976 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Final Report for Optimization of Biological Phosphorus and Ammonia Removal in a Combined Fixed and Suspended Growth Wastewater Treatment System

Download Final Report for Optimization of Biological Phosphorus and Ammonia Removal in a Combined Fixed and Suspended Growth Wastewater Treatment System PDF Online Free

Author : Canada. Environment Canada. Fraser Pollution Abatement Office
Publisher :
ISBN 13 :
Total Pages : 58 pages
Book Rating : 4.:/5 (328 download)

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Book Synopsis Final Report for Optimization of Biological Phosphorus and Ammonia Removal in a Combined Fixed and Suspended Growth Wastewater Treatment System by : Canada. Environment Canada. Fraser Pollution Abatement Office

Download or read book Final Report for Optimization of Biological Phosphorus and Ammonia Removal in a Combined Fixed and Suspended Growth Wastewater Treatment System written by Canada. Environment Canada. Fraser Pollution Abatement Office and published by . This book was released on 1994 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Design Manual

Author :
Publisher :
ISBN 13 :
Total Pages : 132 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Design Manual by :

Download or read book Design Manual written by and published by . This book was released on 1987 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Phosphorus Removal from Wastewater

Author : Robert P.G. Bowker
Publisher : William Andrew
ISBN 13 :
Total Pages : 138 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Phosphorus Removal from Wastewater by : Robert P.G. Bowker

Download or read book Phosphorus Removal from Wastewater written by Robert P.G. Bowker and published by William Andrew. This book was released on 1990-12-31 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: Information presented first by the US EPA in September 1987, in Design manual--phosphorus removal. The manual is oriented toward design methods and operating procedures. Cost information from actual phosphorus-removing installations is presented when available. Planning level cost estimates are also included. Annotation copyrighted by Book News, Inc., Portland, OR

Phosphorus Removal Within Existing Wastewater Treatment Facilities

Author : B. I. Boyko
Publisher : Environmental Protection Service, Environment Canada
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.3/5 ( download)

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Book Synopsis Phosphorus Removal Within Existing Wastewater Treatment Facilities by : B. I. Boyko

Download or read book Phosphorus Removal Within Existing Wastewater Treatment Facilities written by B. I. Boyko and published by Environmental Protection Service, Environment Canada. This book was released on 1976 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The various projects reported herein were undertaken to assist in the implementation of the Province of Ontario's phosphorus control program. Under this five-year program, phosphorus removal was to be initiated on the discharges of more than 170 existing wastewater treatment plants serving some five million persons. In order to implement this program, a methodology to predict the coagulant best suited for phosphorus removal at any particular treatment facility was required. It was also necessary to determine whether the chemicals used for phosphorus removal would have any physical or process effects on present wastewater treatment processes, facilities, methods of sludge treatment, and subsequent sludge disposal practices. This report discusses coagulation prediction and prime coagulant selection, and the operational results, problems and design considerations derived from a series of full scale studies. The study concluded that phosphorus removal may be readily implemented with minimal capital expenditure at operating municipal wastewater treatment facilities of all designs currently in use in Ontario.