Download or read book A Preliminary Investigation Into the Role of Protozoa in the Pure Oxygen Aeration Activated Sludge Process written by Gregory S. Gross and published by . This book was released on 1971 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2013-12-11 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and dis seminated by the Center for Information and Numerical Data Analysis and Synthesis, (CINDAS) *at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the ac tivity was transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volume were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 19 (thesis year 1974) a total of 10,045 theses titles from 20 Canadian and 209 United States universities. We are sure that this broader base for theses titles reported will greatly enhance the value of this important annual reference work. The organization of Volume 19 is identical to that of past years. It consists of theses titles arranged by discipline and by university within each discipline.

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.

Download or read book An Investigation Into the Role of Protozoa in High Rate Activated Sludge Systems written by Robert Martin Booth and published by . This book was released on 1980 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Activated Sludge Process Using Pure Oxygen written by Edward A. Wilcox and published by . This book was released on 1974 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aerobic Stabilization of Waste Activated Sludge written by David B. Cohen and published by . This book was released on 1975 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of the Use of High Purity Oxygen Aeration in the Conventional Activated Sludge Process written by J. G. Albertsson and published by . This book was released on 1970 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Experimental Investigation of the Effect of Concentration of Floc on Oxygen Utilization by Activated Sludge written by William Z. Fluck and published by . This book was released on 1937 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Feasibility of Pre dentrification in the Pure Oxygen Activated Sludge System written by Silvia R. Caponetto 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 An Experimental Investigation of the Oxygen Requirements of Activated Sludge Produced at the Monroe Wisconsin Sewage Treatment Works written by Philip Fairbanks Morgan and published by . This book was released on 1935 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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:

Download or read book System Alternatives in Oxygen Activated Sludge written by John B. Stamberg and published by . This book was released on 1975 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Activated Sludge Process Using Pure Oxygen written by Edward A. Wilcox and published by . This book was released on 1974 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Activated Sludge Process Using Pure Oxygen Scholar s Choice Edition written by U S Environmental Protection Agency and published by . This book was released on 2015-02-16 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Download or read book The Effect of Dissolved Oxygen Concentration on the Activated Sludge Process written by Gregory Robert Swanson and published by . This book was released on 1982 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the introduction of pure oxygen activated sludge systems in the late 1960's, proponents have claimed several advantages resulting from the elevated dissolved oxygen (DO) levels maintained. However, numerous comparative studies have failed to produce a consensus of professional opinion regarding the validity of these claimed advantages. The purpose of this study was to evaluate fundamental theories that might explain the effects of elevated DO levels, to assess the validity of claimed advantages for pure oxygen systems, and to provide guidance regarding appropriate DO levels in activated sludge systems. A literature review revealed that dispersed bacterial cells respond to DO, as measured by respiration rate or intracellular concentrations of metabolites, only at very low concentrations (less than about 0.1 mg/1). Consequently, the occurrence of oxygen diffusional limitations in large bacterial floc and the development of an anoxic core was preliminarily identified as the only reasonable theory for explaining effects of high DO levels. The first phase of this study involved the development of dispersed bacterial cultures in chemostats. Results indicated no significant difference in yield, kinetic coefficients, or specific ATP content between chemostats operated at a low DO level (2.0 mg/1) and a high DO level (15 mg/1). These results confirmed that differences in activated sludge characteristics that apparently result from the maintenance of high DO levels can only be attributed to diffusional limitations. The second phase of this research utilized laboratory-scale activated sludge systems. A simple respirometric procedure was utilized to evaluate the response of respiration rate to DO concentration for these flocculant cultures and plots of specific respiration rate versus DO concentration were developed. These curves were subsequently described in terms of the DO at which the respiration rate was 50 percent of the maximum (C° 5) and the DO at which the respiration rate first reached the maximum (Co). Values for C o 0.5 ranged up to about 1.0 mg/1 and for Co up to about 10 mg/1 for culture samples with maximum floc diameters of 1200 microns and respiration rates up to 200 mg 02/g TSS-hr. The final phase of this research involved respirometric tests on mixed liquor samples obtained from three full-scale activated sludge plants, Results indicated that the critical DO (Co) was typically less than 1.5 mg/1, even at higher respiration rates resulting from the treatment of high-strength industrial wastewaters. Floc size measurements indicated that flocs in full-scale plants rarely exceed 300 microns in diameter. It was concluded that oxygen diffusional limitations typically do not occur at full-scale activated sludge plants if aeration basin DO concentrations are maintained above about 1.0 mg/l.

Download or read book Investigation of the Use of High Purity Oxygen Aeration in the Conventional Activated Sludge Process written by Union Carbide Corporation. Linde Division and published by . This book was released on 1970 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Kinetics of the pure oxygen activated sludge process written by Timothy Bix Tischler and published by . This book was released on 1973 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: