Biodegradation of organopollutants by a white rot fungus in bench scale reactors. Volume 1 and Volume 2. Final report, 1 October 1989-30 September 1992

Technical Report · Wed Mar 31 04:00:00 EST 1993

OSTI ID:6081150

Bumpus, J A; Stevens, D K; Sims, R C

The wood rotting basidiomycete Phanerochaete chrysosporium is able to degrade a wide variety of environmentally persistent organic pollutants to carbon dioxide. Results demonstrated that this fungus can be used to degrade organic pollutants in fixed film bioreactors in which the fungus is immobilized on a polypropylene netting and in fluidized bed bioreactors. The role of lignin peroxidases in organic pollutant degradation was also studied. Results demonstrated that lignin peroxidases are sufficiently stable to be of use in water bioremediation systems which use this fungus. Increasing levels of lignin peroxidases may be an effective strategy for increasing the initial disappearance of some organic pollutants. However, increased levels of lignin peroxidases did not appear to increase mineralization of these chemicals. Results suggest that lignin peroxidases do not mediate rate limiting steps in organic pollutant degradation. Organic pollutants used in our studies include pentachlorophenol, crystal violet, phenanthrene, benzo(a)pyrene, and 2,4,6-trinitrotoluene.

• Research Organization: Notre Dame Univ., IN (United States). Dept. of Chemistry and Biochemistry
• OSTI ID: 6081150
• Report Number(s): PB-93-190791/XAB; CNN: DI-14-08-0001-G1733
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540220 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
550700* -- Microbiology
59 BASIC BIOLOGICAL SCIENCES
AMINES
AROMATICS
BENCH-SCALE EXPERIMENTS
BIOCONVERSION
BIODEGRADATION
BIOREACTORS
CARBOHYDRATES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL EFFLUENTS
CHEMICAL EXPLOSIVES
CHEMICAL REACTIONS
CHEMICAL WASTES
CONDENSED AROMATICS
DECOMPOSITION
DYES
ENZYMES
EUMYCOTA
EXPLOSIVES
FERMENTATION
FLUIDIZED BEDS
FUNGI
HYDROCARBONS
LIGNIN
MANAGEMENT
METHYL VIOLET
MINERALIZATION
NITRO COMPOUNDS
NONRADIOACTIVE WASTES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
OXIDES
OXIDOREDUCTASES
OXYGEN COMPOUNDS
PEROXIDASES
PHANEROCHAETE
PHENANTHRENE
PLANTS
POLLUTANTS
POLLUTION
POLYMERS
POLYOLEFINS
POLYPROPYLENE
POLYSACCHARIDES
PROCESSING
PROTEINS
PYRENE
REMEDIAL ACTION
RESEARCH PROGRAMS
SACCHARIDES
TNT
TRIPHENYLMETHANE DYES
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
WATER POLLUTION
WOOD