Microbial screening test for lignite degradation: Quarterly progress report No. 9 for the period January-March 1987

Technical Report · Sun Mar 01 04:00:00 EST 1987

OSTI ID:6687580

Yen, Teh Fu

Anaerobic fermentation of water soluble fraction of modified lignite was attempted. Solubilized lignite formed bioprecipitate after biodegradation. Fermentation of water solubilized lignite in enrichment media produced gases and organic acids. FT-IR spectra of solubilized lignite after biodegradation showed that the concentration of organic oxygen have decreased and that the concentration of -CH/sub 3/ terminal group have increased. Solubilized lignite may serve as sole carbon source by using selective media. Bacteria was suspected of being able to utilize fulvic-like materials from solubilized lignite. Isolation of anaerobic bacteria was achieved by surface culture, and it indicated morphological differences among isolated colonies. Alginate gel entrapment, an immobilization method, was applied to T. versicolor fungal cells. Active fungal growth was observed from the immobilized spheres on sodium-alginate gel. It seems that the immobilized biocatalysts may be used to enhance the production of bioextract from lignite in a reactor system. Hydroxylation of lignite was accomplished through Fenton reaction at pH 7.5. FT-IR analysis showed that lignite treated with Fenton's reagent exhibits weaker aromatic bending and ether linkage than untreated lignite. 13 refs., 8 figs.

• Research Organization: University of Southern California, Los Angeles (USA)
• DOE Contract Number: FG22-84PC70809
• OSTI ID: 6687580
• Report Number(s): DOE/PC/70809-T13; ON: DE87007684
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
010600 -- Coal
Lignite
& Peat-- Properties & Composition
550700 -- Microbiology
59 BASIC BIOLOGICAL SCIENCES
ANAEROBIC DIGESTION
BIOCONVERSION
BIODEGRADATION
BROWN COAL
CARBOHYDRATES
CARBONACEOUS MATERIALS
CELL CULTURES
CHEMICAL REACTIONS
CHROMATOGRAPHY
COAL
COLLOIDS
DECOMPOSITION
DIGESTION
DISPERSIONS
DISSOLUTION
ENERGY SOURCES
FOSSIL FUELS
FOURIER TRANSFORMATION
FUELS
FULVIC ACIDS
FUNGI
GELS
HYDROXYLATION
INFRARED SPECTRA
INTEGRAL TRANSFORMATIONS
LIGNIN
LIGNITE
LIQUID COLUMN CHROMATOGRAPHY
MANAGEMENT
MATERIALS
MICROORGANISMS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PLANTS
POLYSACCHARIDES
PROCESSING
SACCHARIDES
SEPARATION PROCESSES
SOLUBILITY
SPECTRA
TRANSFORMATIONS
WASTE MANAGEMENT
WASTE PROCESSING