Mutant bacteria give fast startup for new process
Journal Article
·
· Pollut. Eng.; (United States)
OSTI ID:6666348
In order to accelerate startup in the aeration basin of the new primary and secondary wastewater treatment systems in Chemplex Corp.'s Clinton, Iowa, facility, the aeration tank was seeded with 75 lb of Phenobac mutant bacteria strains. The facility produces about 500 million lb/yr of polyethylene and generates 1.5 million gal/day of wastewater containing by-product compounds, including phenols, oil and grease, toluene, styrene, and naphthalene. The phenol levels in the final effluent dropped to 0.4 mg/l. after one day and to Vertical Bar3; 0.1 mg/l. in two days, while the levels of BOD/sub 5/ and COD in the effluent were reduced below permit specifications in four days. The new system has enabled Chemplex to meet the new standards of 35, 215, and 0.4 mg/l. for BOD/sub 5/, COD, and phenols, respectively, compared with the earlier values of 80, 270, and 0.8 mg/l. Phenoback breaks down phenols, heavy aromatics, saturated and unsaturated hydrocarbons, and cyanides in wastewater to allow microorganisms to establish themselves. The operating principles of the treatment system are discussed.
- OSTI ID:
- 6666348
- Journal Information:
- Pollut. Eng.; (United States), Journal Name: Pollut. Eng.; (United States) Vol. 11:7; ISSN PLENB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
420900 -- Engineering-- Waste Processing Plants & Equipment-- (-1989)
560302* -- Chemicals Metabolism & Toxicology-- Microorganisms-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AROMATICS
BACTERIA
BIOCHEMICAL OXYGEN DEMAND
BIODEGRADATION
CHEMICAL INDUSTRY
CHEMICAL OXYGEN DEMAND
CHEMICAL REACTIONS
DATA
DECOMPOSITION
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INDUSTRY
INFORMATION
LIQUID WASTES
MICROORGANISMS
NUMERICAL DATA
OPERATION
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHENOLS
STANDARDS
WASTE WATER
WASTES
WATER
WATER TREATMENT PLANTS
420900 -- Engineering-- Waste Processing Plants & Equipment-- (-1989)
560302* -- Chemicals Metabolism & Toxicology-- Microorganisms-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AROMATICS
BACTERIA
BIOCHEMICAL OXYGEN DEMAND
BIODEGRADATION
CHEMICAL INDUSTRY
CHEMICAL OXYGEN DEMAND
CHEMICAL REACTIONS
DATA
DECOMPOSITION
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INDUSTRY
INFORMATION
LIQUID WASTES
MICROORGANISMS
NUMERICAL DATA
OPERATION
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHENOLS
STANDARDS
WASTE WATER
WASTES
WATER
WATER TREATMENT PLANTS