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 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:
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 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 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 Biological Phosphorus Removal Activated Sludge Process in Warm Climates written by Cao Ye Shi and published by IWA Publishing. This book was released on 2011-03-15 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
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 Handbook of Environmental Materials Management written by Chaudhery Mustansar Hussain and published by Springer. This book was released on 2019-06-03 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference work analyzes and assesses global environmental management techniques for environmental materials with a focus on their performance and economic benefits, proposing eco-friendly solutions and designating policies that will sustain the environment for future generations. It addresses management of environmental materials as not only a complex anthropogenic problem, but also as an expensive problem that needs to be managed sustainably. Simultaneously, it considers the environmental and economic benefits involved in the high levels of investment and operation costs required to develop effective materials collection and management systems in modern society.
Download or read book Optimization of Biological Nitrogen and Phosphorus Removal in A2 O Wastewater Treatment Processes written by Changyong Wu and published by Nova Science Publishers. This book was released on 2021 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Anaerobic-anoxic-oxic (A2/O) is one of the most widely used processes in municipal wastewater treatment plants for simultaneous biological nitrogen and phosphorus removal. The A2/O process has many advantages, such as simple configuration and short hydraulic retention time (HRT), etc. In addition, it is easy to operate. Therefore, A2/O will be continuously chosen as the main option in all kinds of newly designed and built wastewater treatment plants. Though the A2/O process has been used widely, it has some inherent contradictions which are difficult to overcome. For example, the contradiction between substrate competition and SRT makes the high nitrogen and phosphorus removal unable to be achieved simultaneously. As a result, the removal efficiency of the system cannot be further improved. In the past 10 years in China, the wastewater quality very obviously changed with the improvement of living conditions. At present, municipal wastewater with a low C/N ratio is rather common in most countries in the world. The lack of a carbon source will make the inherent contradictions of the A2/O process becomes serious. Therefore, the conventional design parameters of the A2/O process are needed to adjust or the configuration of the A2/O process should change to fit the change of the wastewater quality. According to this, this book systematically describes how to improve the nitrogen and phosphorus removal efficiency of municipal wastewater with low C/N ratio, and effectively utilize the carbon resource in the influent of wastewater. This publication is useful for students, researchers and engineers whose major focus is municipal and the environment"--
Download or read book Index Medicus written by and published by . This book was released on 2004 with total page 1810 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.
Download or read book Optimization of Enhanced Biological Phosphorus Removal in Sequencing Batch Reactors at the Dauphin Borough Wastewater Treatment Plant written by James A. Frazier and published by . This book was released on 1993 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
