skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Restoring nitrification and COD removal at a refinery in the Southwest

Conference ·
OSTI ID:148103
;  [1]; ;  [2]
  1. IBG-Microbe Masters, Houston, TX (United States)
  2. IBG-Microbe Masters, Baton Rouge, LA (United States)

During the month of April 1993, a Southwest Texas refinery experienced a loss of nitrification and Chemical Oxygen Demand (COD) removal capacity in their activated sludge system following several consecutive days of high COD loadings. This resulted in excessive effluent ammonia (NH{sup 3}) and COD levels approaching permit levels. International Biochemical Group-Microbe Masters (Microbe Masters) was brought into the plant at the end of April to assess the situation and provide recommendations to quickly restore nitrification and COD removal. The bioaugmentation program employed at this refinery achieved the following results: (1) restoration of complete nitrification in thirteen days; (2) a 17% increase in COD removal efficiency; and (3) improved plant/operator knowledge of biological system health and performance critical to maintaining optimum BOD, COD and NH{sub 3} removal.

OSTI ID:
148103
Report Number(s):
CONF-950152-; TRN: IM9601%%208
Resource Relation:
Conference: Petro-Safe `95 conference and exhibition, Houston, TX (United States), 31 Jan - 2 Feb 1995; Other Information: PBD: 1995; Related Information: Is Part Of Petro-safe `95: 6. Annual environmental, safety and health conference and exhibition for the oil, gas and petrochemical industries. Book 1; PB: 590 p.
Country of Publication:
United States
Language:
English