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EXPERIENCES OF A PETROCHEMICAL WASTEWATER PLANT IN SHANGHAI

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Abstract:

The Shanghai Petrochemical Wastewater Treatment Plant (SPWTP), built in 1977 using a simple plug-flow design for aeration, was upgraded in 1992 to meet a new discharge requirement of 15 mg-N/l of ammonia nitrogen (NH3-N) set by local Environmental Protection Agency by adding a triple-ditch for further aeration. However, the effluent often remained unsatisfactory. As a result, the SPWT was further upgraded in 1999 by adding a parallel train using two carrousel oxidation ditches in series. The removal of NH3-N was improved greatly with only 1.7 mg-N/l in the effluent. This paper analyzes the effluent quality during 1997–2000, and summarizes the SPWT experiences learned from the two upgrades.

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864701785019498

Publication date: January 1, 2001

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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 These proceedings are not peer reviewed.

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