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.
Download or read book Final Report for written by and published by . This book was released on 1994 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Final Report for written by Birmingham Civil Rights Institute (Birmingham, Ala.) and published by . This book was released on 1994 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optimization of Biological Phosphorus and Ammonia Removal in a Combined Fixed and Suspended Growth Wastewater Treatment System December 1994 written by and published by . This book was released on 1994 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1995 with total page 798 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
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:
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.
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.
Download or read book A Full scale Evaluation of Biological Phosphorus Removal Using a Fixed and Suspended Growth Combination written by Allan James Gibb and published by . This book was released on 1990 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrogen Control and Phosphorus Removal in Sewage Treatment written by D. J. De Renzo and published by William Andrew. This book was released on 1978 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bioelectrochemical Systems written by Korneel Rabaey and published by IWA Publishing. This book was released on 2009-12-01 with total page 525 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the context of wastewater treatment, Bioelectrochemical Systems (BESs) have gained considerable interest in the past few years, and several BES processes are on the brink of application to this area. This book, written by a large number of world experts in the different sub-topics, describes the different aspects and processes relevant to their development. Bioelectrochemical Systems (BESs) use micro-organisms to catalyze an oxidation and/or reduction reaction at an anodic and cathodic electrode respectively. Briefly, at an anode oxidation of organic and inorganic electron donors can occur. Prime examples of such electron donors are waste organics and sulfides. At the cathode, an electron acceptor such as oxygen or nitrate can be reduced. The anode and the cathode are connected through an electrical circuit. If electrical power is harvested from this circuit, the system is called a Microbial Fuel Cell; if electrical power is invested, the system is called a Microbial Electrolysis Cell. The overall framework of bio-energy and bio-fuels is discussed. A number of chapters discuss the basics – microbiology, microbial ecology, electrochemistry, technology and materials development. The book continues by highlighting the plurality of processes based on BES technology already in existence, going from wastewater based reactors to sediment based bio-batteries. The integration of BESs into existing water or process lines is discussed. Finally, an outlook is provided of how BES will fit within the emerging biorefinery area.
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.
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 Land Development Handbook written by Dewberry and published by McGraw Hill Professional. This book was released on 2008-07-06 with total page 1185 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Definitive Guide to Land Development-Every Detail, Every Issue, Every Setting Land Development Handbook provides a step-by-step approach to any type of project, from rural greenfield development to suburban infill to urban redevelopment. With the latest information regarding green technologies and design, the book offers you a comprehensive look at the land-development process as a whole, as well as a thorough view of individual disciplines. Plus, a bonus color insert reveals the extent to which land development projects are transforming our communities! This all-in-one guide provides in-depth coverage of: Environmental issues from erosion and sediment control and stormwater management to current regulatory controls for plan approval, permitting, and green building certification Comprehensive planning and zoning including new development models for mixed-use, transit-oriented, and conservation developments Enhanced approaches to community and political consensus building Technical design procedures for infrastructure components including roads and utilities with a new section on dry utilities Surveying tools and techniques focusing on the use of GPS and GIS to collect, present, and preserve data throughout the design process Plan preparation, submission, and processing with an emphasis on technologies available-from CAD modeling and design to electronic submissions, permit processing, and tracking Subjects include: Planning and zoning Real Property Law Engineering Feasibility Environmental Regulations Rezoning Conceptual and Schematic Design Development Patterns Control, Boundary, and Topographical Surveys Historic Assessment and Preservation Street and Utility Design Floodplain Studies Grading and Earthwork Water and Wastewater Treatment Cost Estimating Subdivision Process Plan Submittals Stormwater Management Erosion and Sediment Control And much more!
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.
Download or read book Biological Wastewater Treatment written by Mogens Henze and published by IWA Publishing (International Water Assoc). This book was released on 1881 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: For information on the online course in Biological Wastewater Treatment from UNESCO-IHE, visit: http://www.iwapublishing.co.uk/books/biological-wastewater-treatment-online-course-principles-modeling-and-design Over the past twenty years, the knowledge and understanding of wastewater treatment have advanced extensively and moved away from empirically-based approaches to a first principles approach embracing chemistry, microbiology, physical and bioprocess engineering, and mathematics. Many of these advances have matured to the degree that they have been codified into mathematical models for simulation with computers. For a new generation of young scientists and engineers entering the wastewater treatment profession, the quantity, complexity and diversity of these new developments can be overwhelming, particularly in developing countries where access is not readily available to advanced level tertiary education courses in wastewater treatment. Biological Wastewater Treatment addresses this deficiency. It assembles and integrates the postgraduate course material of a dozen or so professors from research groups around the world that have made significant contributions to the advances in wastewater treatment. The book forms part of an internet-based curriculum in biological wastewater treatment which also includes: Summarized lecture handouts of the topics covered in book Filmed lectures by the author professors Tutorial exercises for students self-learning Upon completion of this curriculum the modern approach of modelling and simulation to wastewater treatment plant design and operation, be it activated sludge, biological nitrogen and phosphorus removal, secondary settling tanks or biofilm systems, can be embraced with deeper insight, advanced knowledge and greater confidence.
