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The Effect Of Elevated Pressure On The Activated Sludge Process
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Book Synopsis The Effect of Elevated Pressure on the Activated Sludge Process by : Patrick James Godsil
Download or read book The Effect of Elevated Pressure on the Activated Sludge Process written by Patrick James Godsil and published by . This book was released on 1963 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study of the effect of elevated pressure on the activated sludge waste treatment process is presented. The method of study involved a comparison of two laboratory, batch type, activated sludge units. One unit was operated at atmospheric pressure as a base control and the other operated at elevated pressures up to 60 psig. All other controllable parameters were kept constant. The units were compared on the basis of: 1. The type of biological growth present in the mixed liquor, 2. The mass growth rates of the biological organisms. 3. The removals of chemical oxidation demand. 4. The dissolved oxygen concentration in the mixed liquor. 5. The pH of the mixed liquor. Results of this study showed that: 1. Elevated pressure of 60 psig does not affect the type of biological growth present in the mixed liquor, but it does hinder the formation of long-chain filamentous growths. 2. The sampling methods used for determining the growth rates were not adequate and provided no basis for comparison. 3. Under the conditions of this study, elevated pressures have no effect on the removal of chemical oxygen demand in the activated sludge process. 4. The dissolved oxygen concentration in the mixed liquor increases with the pressure, but, under the conditions of this study, not in a direct relationship. 5. Elevated pressure of 60 psig does not adversely affect the pH of the mixed liquor. This study is one phase of an investigation to determine the feasibility of increasing the reaction rates of the activated sludge process by subjecting the process to both high pressure and high shear mixing.
Book Synopsis The Effect of Elevated Pressure and High Shear on Oxygen Uptake Rates in Activated Sludge by : Leale E. Streebin
Download or read book The Effect of Elevated Pressure and High Shear on Oxygen Uptake Rates in Activated Sludge written by Leale E. Streebin and published by . This book was released on 1965 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purification capacity of an activated sludge process is highly dependent of the rate of oxygen transfer from the air to the microorganisms. This rate can be increased in an air diffusion system by subjecting the culture to high shear and high pressure. A study of the effects of high pressure and high shear on the reaction rates in an activated sludge system is presented in this thesis. These effects were determined by varying the pressure and shear levels while keeping the other parameters constant. The following tests were performed to compare the results obtained at the different operating conditions : 1. Oxygen uptake rates. 2. Biological growth rates. 3. Type of biota present. 4. BOD and COD removal efficiencies. The conclusions drawn from these test results are as follows: 1. Under the conditions of this experiment high shear and high pressure had no effect on the purification capacity of the system, 2. For this study the growth rates could not be used as a comparison because of the erratic results caused by the build up of a sludge ring around the top of the mixed-liquor. 3. The type of biota present in the mixed-liquor was about the same under all operating conditions. The most significant change was the decrease in the size of the bacterial masses and an increase in the number of individual bacteria with an increase in the shear level.
Book Synopsis A Study of the Effects of Increased Temperature, Pure Oxygen Use, and Pressure on the Activated Sludge Process by : Jitender B. Asthana
Download or read book A Study of the Effects of Increased Temperature, Pure Oxygen Use, and Pressure on the Activated Sludge Process written by Jitender B. Asthana and published by . This book was released on 1975 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of High Purity Oxygen on the Activated Sludge Process by : Larry D. Benefield
Download or read book The Effect of High Purity Oxygen on the Activated Sludge Process written by Larry D. Benefield and published by . This book was released on 1975 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Use of High-purity Oxygen in the Activated Sludge Process by : J. R. McWhirter
Download or read book The Use of High-purity Oxygen in the Activated Sludge Process written by J. R. McWhirter and published by CRC Press. This book was released on 2019-07-30 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: First published in 1978: The purpose of this two-volume series is to present a consolidated and comprehensive reference on oxygen-activated sludge technology.
Book Synopsis Activated Sludge by : Wesley Eckenfelder
Download or read book Activated Sludge written by Wesley Eckenfelder and published by CRC Press. This book was released on 1998-08-04 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents: Process Theory Kinetics and Sludge Quality Control: Activated Sludge Process - Process Theory - Activated Sludge Separation Problems - References Activated Sludge Treatment of Municipal Wastewater U.S.A. Practice: General Approach - Clarifier Design - Aeration Tank (Reactor) Design - Appurtenance Design - Configurations - ReferencesEurope
Book Synopsis Activated Sludge by : Wesley Eckenfelder
Download or read book Activated Sludge written by Wesley Eckenfelder and published by CRC Press. This book was released on 1998-03-11 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past, industrial wastewater treatment primarily focused on the removal of BOD and suspended solids. In recent years, however, the focus has changed to aquatic toxicity, priority pollutants, and volatile organics. This required changes in how we design and operate biological treatment plants. Many existing plants must be retrofitted. New approaches to meet new requirements are discussed in detail. The authors, with a combined experience of sixty years, have presented case studies for a wide variety of industrial wastewaters including pulp and paper, food processing, chemical and pharmaceuticals, and textile wastewaters. Data interpretation and process design are developed through the use of seventeen examples. Procedures for the laboratory and pilot plant generation of process design data are presented. Emphasis is placed on meeting the many new regulations governing industrial wastewater discharges.
Book Synopsis Oxygen Activated-sludge Wastewater Treatment Systems by : United States. Environmental Protection Agency
Download or read book Oxygen Activated-sludge Wastewater Treatment Systems written by United States. Environmental Protection Agency and published by . This book was released on 1973 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Oxygen Activated-sludge Wastewater Treatment Systems by : Edward A. Wilcox
Download or read book Oxygen Activated-sludge Wastewater Treatment Systems written by Edward A. Wilcox and published by . This book was released on 1974 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Activated Sludge Process by : Arthur John Martin
Download or read book The Activated Sludge Process written by Arthur John Martin and published by . This book was released on 1927 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Interrelated Effects of Dissolved Oxygen Concentration and Turbulence Level on Observed Cell Yield and Settleability in an Activated Sludge System by : Kent Sauter Kisenbauer
Download or read book The Interrelated Effects of Dissolved Oxygen Concentration and Turbulence Level on Observed Cell Yield and Settleability in an Activated Sludge System written by Kent Sauter Kisenbauer and published by . This book was released on 1976 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Activated Sludge written by N. F. Gray and published by Oxford University Press, USA. This book was released on 1990 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Activated sludge is the most widely used biological wastewater treatment process in the world, both for domestic and industrial purposes. This book reviews the major theoretical concepts and practical operational factors, and describes the complexities inherent in the process, which depends on a dense microbial population mixed in wastewater under specific aerobic conditions. It is an ideal reference source for scientists, and a useful troubleshooting guide for practicing engineers and plant operators.
Book Synopsis The Activated Sludge Process of Sewage Treatment by : General Filtration Company (Rochester, N.Y.)
Download or read book The Activated Sludge Process of Sewage Treatment written by General Filtration Company (Rochester, N.Y.) and published by . This book was released on 1926 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effects of Temperature and Sludge Recycle on the High-rate Activated Sludge Process by : Donnie Blain MacEwen
Download or read book The Effects of Temperature and Sludge Recycle on the High-rate Activated Sludge Process written by Donnie Blain MacEwen and published by 1976 [c1977]. This book was released on 1976 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Activated Sludge: Developments And Sustainable Solutions by : Nicholas F Gray
Download or read book Activated Sludge: Developments And Sustainable Solutions written by Nicholas F Gray and published by World Scientific. This book was released on 2023-02-27 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt: Activated sludge is the most widely used biological wastewater treatment process globally to date, although its high energy demand makes it a major contributor of greenhouse gas emissions. Over recent decades it has been constantly modified and retrofitted to treat ever higher loads or improve effluent standards which have often resulted in even greater carbon emissions. Conventional activated sludge treatment is at a crossroads where new sustainable solutions are required if we are to protect the quality of our rivers and meet net-zero carbon targets.The book details current operation and design with special emphasis on the biological aspects of the process. From the microbial kinetics to the fascinating process of floc formation and development, the book explores the development of our understanding of the process looking at new sustainable designs, including biological nutrient removal and new aeration systems. Sludge separation problems and control options are explained, with a trouble-shooting guide to non-bulking problems. Environmental issues including noise, odor, aerosols, micro-plastics and nanoparticles are all reviewed, as is pathogen removal and the problem of antibiotic resistant genes and bacteria. The development of membrane bioreactors has increased process reliability and effluent quality, while integrated fixed-film activated sludge processes are more efficient and compact. The book concludes by exploring how activated sludge can become more sustainable, for example, by carbon harvesting and byproduct recovery.This interdisciplinary book is essential reading for both engineers and scientists whether training at university or practitioners and consultants in the wastewater industry.Related Link(s)
Book Synopsis Aeration with a High-oxygen Atmosphere in the Activated Sludge Process by : Douglas Emerit Dreier
Download or read book Aeration with a High-oxygen Atmosphere in the Activated Sludge Process written by Douglas Emerit Dreier and published by . This book was released on 1942 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Activated Sludge Process of Sewage Treatment by : James Edward Porter
Download or read book The Activated Sludge Process of Sewage Treatment written by James Edward Porter and published by . This book was released on 1921 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
