Enhanced biodegradation of polyaromatic hydrocarbons in manufactured gas plant wastes

Conference · Mon Jan 01 04:00:00 EST 1990

OSTI ID:6375582

Gauger, W K; Srivastava, V J ^[1]; Hayes, T D; Linz, D G ^[2]

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1. Institute of Gas Technology, Chicago, IL (United States)
2. Gas Research Inst., Chicago, IL (United States)

Scientists at the Institute of Gas Technology (IGT) have focused on enhancing destruction of polyaromatic hydrocarbons (PAHs) present as pollutants in manufactured gas plant (MGP) soils. The factor that bears the most restrictive influence on successful biological PAH degradation is low pollutant transfer from soil into an aqueous environment where biotreatment processes can take place. Physical and chemical enhancements were used in conjunction with biological processes. Physical enhancements overcame the mass transfer problem and made possible the biological destruction of aromatic hydrocarbons. One- to three-ring aromatic hydrocarbons were readily biodegraded in liquid, soil slurry, and -- to a lesser degree -- composted soil systems. Four- to six-ring PAHs remained persistent but were effectively destroyed when chemical co-treatments were used. Combined biological/chemical/physical processes are currently being tested to achieve the most extensive PAH degradation possible for MGP soils. 8 refs., 9 figs., 2 tabs.

• Research Organization: Institute of Gas Technology, Chicago, IL (United States)
• Sponsoring Organization: IGT; Institute of Gas Technology, Chicago, IL (United States)
• OSTI ID: 6375582
• Report Number(s): CONF-901212-3; ON: TI92002555
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010900* -- Coal
Lignite
& Peat-- Environmental Aspects
54 ENVIRONMENTAL SCIENCES
540250 -- Environment
Terrestrial-- Site Resource & Use Studies-- (1990-)
AQUEOUS SOLUTIONS
AROMATICS
BIODEGRADATION
CHEMICAL REACTIONS
CHEMISTRY
CLEANING
COAL GASIFICATION PLANTS
DECOMPOSITION
DECONTAMINATION
DISPERSIONS
FLUIDS
GASES
HYDROCARBONS
INDUSTRIAL PLANTS
INDUSTRIAL WASTES
LAND RECLAMATION
MANAGEMENT
MIXTURES
ORGANIC COMPOUNDS
POLYCYCLIC AROMATIC HYDROCARBONS
SOIL CHEMISTRY
SOILS
SOLUTIONS
SYNTHESIS GAS
WASTE MANAGEMENT
WASTES