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DIRECT FILTRATION FOR WET WEATHER CONDITIONS

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Abstract:

Deep bed filters were operated in a pilot study at high filtration rates on raw wastewater approximating peak flow wet weather conditions. The filters were able to achieve near secondary effluent quality on suspended solids, CBOD and other contaminants.

Innovative operating methods were developed to keep the water moving through the filters without premature clogging from heavy solids loadings. New quick backwashing methods were developed to rapidly expel excess solids, so that the filters could handle the peak flow conditions.

After this successful test, construction began on a full-scale 360 MGD peak flow treatment plant at the Village Creek Wastewater Treatment Plant near Birmingham Alabama. The new plant is to be completed by late 2003.

Storm events occur 5 to 15 times per year. The filters will provide effluent polishing in between. This approach also has application to sanitary sewer overflow (SSO), combined sewer overflow (CSO) and other peak flow storm water treatment.

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864702784162589

Publication date: January 1, 2002

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  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

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