Chlorinated organics removal from contaminated soil and groundwater by microorganisms
This research has focused on the development of remedial technology to rehabilitate contaminated soil and groundwater. Biological treatment was chosen because it is environmentally sound and less costly than alternative methods involving physical-chemical treatment. Pentachlorophenol (PCP) was used as a model compound. PCP removal from contaminated groundwater and synthetic media was studied in batch tests. Complete removal and stoichiometric release of chloride ions was observed. The effects of different size sand particles on PCP biodegradation were tested to determine the rates of removal. Short and long sand columns were also tested to determine the rates of PCP removal in saturated and unsaturated flow conditions. The results show that the acclimated culture is capable of removing chlorinated organics from contaminated groundwater even in the presence of several hundred of mg/L of other organic pollutants.
- Research Organization:
- Minnesota Univ., Minneapolis (USA)
- OSTI ID:
- 6714731
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560300 -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AROMATICS
BATCH CULTURE
BIODEGRADATION
CHEMICAL REACTIONS
CHLORINATED AROMATIC HYDROCARBONS
CONTAMINATION
DECOMPOSITION
GROUND WATER
HALOGENATED AROMATIC HYDROCARBONS
HYDROGEN COMPOUNDS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN COMPOUNDS
POLLUTION
REMOVAL
SOILS
STOICHIOMETRY
WATER
WATER POLLUTION