TREATMENT OF OILY WASTES BY MEMBRANE BIOLOGICAL REACTOR

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Abstract:

Wastewater from Marathon Ashland Petroleum's (MAP) barge cleaning and repair terminal operations contains elevated concentrations of biochemical oxygen demand (BOD), chemical oxygen demand (COD), total suspended solids (TSS), arsenic, benzene, and oil and grease. Pretreatment of this wastewater by a dissolved air flotation (DAF) process had not been effective in meeting the permit limitations issued by the City of Ashland (POTW). Furthermore, more restrictive pretreatment standards for wastewater from cleaning the interiors of petroleum and chemicalbarges (Transportation Equipment Cleaning Category 40 CFR 442) become effective August 14, 2003, thereby necessitating an investigation into alternate treatment technologies for regulatory compliance.

To address these issues, MAP commissioned Tetra Tech, Inc., to conduct a wastewater characterization study to select and bench test a treatment system for such oily wastewater. The selected system was a membrane bioreactor reactor (MBR). The bench/pilot results showed that the system could successfully treat a highly-variable oily wastewater, with high removals of BOD, COD, oil and grease, TSS, and BTEX.

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864703784641612

Publication date: January 1, 2003

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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 These proceedings are not peer reviewed.

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