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OLS Field Name OLS Field Data
Main Title Survey and Evaluation of Fine Bubble Dome Diffuser Aeration Equipment.
Author Houck, Daniel H. ; Boon, Arthur G. ;
CORP Author Association of Metropolitan Sewerage Agencies, Washington, DC.;Municipal Environmental Research Lab., Cincinnati, OH.
Year Published 1981
Report Number EPA-R-806990; EPA-600/2-81-222;
Stock Number PB82-105578
Additional Subjects Activated sludge process ; Aerators ; Sewage treatment ; Energy consumption ; Performance evaluation ; Design criteria ; Maintenance ; Cost analyses ; Dome diffuser aerators
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=20007G7Q.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB82-105578 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 189p
Abstract This research project was initiated with the overall objective of better defining the oxygen transfer performance, operation and maintenance (O&M) requirements, and proper design approaches for fine bubble dome diffuser aeration systems used in activated sludge wastewater treatment. Working in conjunction with the Water Research Centre of Stevenage, England, a survey of 19 wastewater treatment plants with dome diffuser aeration equipment was carried out. Thirteen of the plants were located in the United Kingdom, two in The Netherlands, and four in the United States. As nearly as possible, data on influent and effluent wastewater characteristics, power demand, air supply, and process parameters were compiled for a 5-yr period. Maintenance personnel were interviewed to develop a summary of long-term operation and maintenance experience. Results of this work indicate that, relative to other devices, fine bubble dome diffuser systems can perform at high energy efficiency when proper design, operation, and maintenance practices are followed and when strong alpha-depressing industrial wastes are absent. O&M experience with this equipment has generally been very good, with 6-10 yrs or longer, between cleanings. Oxygen transfer performance was found to be highly variable between the plants. Many plants carried excessive mixed liquor D.O. in the aeration basins, thereby lowering oxygen transfer efficiency. Plants with multiple-pass plug flow basins generally exhibited poorer power economy than those with single-pass basins.
NTIS Title Notes Final rept. Aug 79-Sep 80.
PUB Date Free Form Sep 81
Category Codes 13B; 68D
NTIS Prices PC A09/MF A01
Primary Description 600/14
Document Type NT
Cataloging Source NTIS/MT
Control Number 323804982
Origin NTIS
Type CAT