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A new method has been developed for evaluating primary clarifiers that examines the individual effect of concentration of non-settleable solids, detention time, clarifier depth, sludge blanket depth, and design features of the clarifier on removal efficiency. This method was successfully used to determine priorities for clarifier improvements at the San Jose/Santa Clara Water Pollution Control Plant (SJ/SC WPCP). Maintaining the sludge blanket level within a narrow range (1.5-1.7 m (5—5.5 ft)) was found to be the most cost-effective method for increasing removal efficiency.

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864700784607181

Publication date: January 1, 2000

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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 These proceedings are not peer reviewed.

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