||Converting rock trickling filters to plastic media : design and performance /
Stenquist, Richard J. ;
Kelly, Kathryn A.
||Brown and Caldwell, Walnut Creek, CA.;Municipal Environmental Research Lab., Cincinnati, OH.
|| Municipal Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Sewage disposal plants--California--Stockton. ;
Trickling filters ;
Sewage treatment ;
Performance evaluation ;
Biochemical oxygen demand ;
Dissolved gases ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||192 pages : illustrations ; 28 cm.
This investigation was undertaken with the objectives of reviewing the conversion of trickling filters at the Stockton, California, Regional Wastewater Control Facility from rock media to plastic media and to develop general design considerations for similar conversions which might be carried out elsewhere. The Stockton plastic media trickling filters are designed to operate in two modes: (1) to oxidize carbonaceous material during the canning season when plant loadings are high (design flow = 220,000 cu/day or 58 mgd) and, (2) to provide combined carbon oxidation-nitrification during the noncanning season when loadings are low. To evaluate plant performance, a special 1-yr sampling program was carried out.
Prepared for U.S. Environmental Protection Agency, Office of Research and Development, Municipal Environmental Research Laboratory, Cincinnati, Ohio, submitted by Brown and Caldwell, under contract no. 68-03-2349. Includes bibliographical references (pages 133-135). Microfiche.