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CASE HISTORY OF FINE PORE DIFFUSER RETROFIT AT RIDGEWOOD, NEW JERSEY
Citation:
Mueller, J. A. AND P. D. Saurer. CASE HISTORY OF FINE PORE DIFFUSER RETROFIT AT RIDGEWOOD, NEW JERSEY. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/R-94/098 (NTIS 94-200862), 1994.
Impact/Purpose:
Information.
Description:
In April 1983, the Ridgewood, New Jersey Wastewater Treatment Plant underwent a retrofit from a coarse bubble to a fine pore aeration system. Also, process modification from contact stabilization to tapered aeration occurred. This report presents a case history of plant and aeration performance of each system form 1981 through 1986. Extensive aeration studies were conducted on the fine pore aeration system in 1985 and 1986 to highlight the changing oxygen transfer efficiency with time and evaluate cleaning frequency requirements to maintain the efficiency at a viable level. In economic evaluation including bid prices, maintenance costs, and payoff period based on power savings is included. This report was submitted in partial fulfillment of Cooperative Agreement No. CR812167 by the American Society of Civil Engineers under subcontract to Manhattan College under the partial sponsorship of the U.S. Environmental Protection Agency. The work reported herein was conducted over the period of 1985-1986. Project summary may be ordered as EPA/600/S-94/001).