Microbial screening test for lignite degradation. Quarterly progress report No. 2, April-June 1985
Fractionation of lignite was performed by means of: (1) benzene-methanol followed by aqueous alkaline extraction; and (2) benzene followed by methanol-alkaline extraction. The residue obtained by the latter fractionation was oxidized by means of cupric oxide and separated into methanol soluble fraction and methanol insoluble residue. Methanol-alkaline fraction was further divided into methylene chloride extractable portion and methylene chloride non-extractable portion. Fourier Transform Infrared Spectroscopy (FT-IR) was employed to characterize functional groups present in the raw lignite sample, benzene-methanol fraction, aqueous alkaline fraction, lignite residue, and benzene fraction. FT-IR was also used for the analysis of both methylene chloride extractable and non-extracted portions. The following are some functional groups identified by the spectra of the fractions mentioned above: OH, amide, aromatic, CH, CO, C=C, CH/sub 2/, C-CH/sub 3/, SiCH/sub 3/, epoxide, and C-O-C. Both, raw lignite sample and aqueous alkaline fraction produced positive results for P. versicolor growth, whereas benzene-methanol fraction and lignite residue produced negative results. Acclimation of P. versicolor to lignite was accomplished up to 80% lignite and 20% neopeptone and maltose. 10 refs., 9 figs., 6 tabs.
- Research Organization:
- University of Southern California, Los Angeles (USA)
- DOE Contract Number:
- FG22-84PC70809
- OSTI ID:
- 5537985
- Report Number(s):
- DOE/PC/70809-T2; ON: DE85014722
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
010600* -- Coal
Lignite
& Peat-- Properties & Composition
ASHES
BIODEGRADATION
BIOLOGICAL ADAPTATION
BROWN COAL
CARBONACEOUS MATERIALS
CHEMICAL BONDS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CHROMATOGRAPHY
COAL
DATA
DECOMPOSITION
ENERGY SOURCES
EXPERIMENTAL DATA
EXTRACTION
FOSSIL FUELS
FOURIER TRANSFORMATION
FRACTIONATION
FUELS
FUNGI
HYDROLYSIS
INFORMATION
INFRARED SPECTRA
INTEGRAL TRANSFORMATIONS
LIGNITE
LYSIS
MATERIALS
NUMERICAL DATA
OXIDATION
PLANTS
RESIDUES
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVOLYSIS
SPECTRA
STRUCTURAL CHEMICAL ANALYSIS
STRUCTURAL MODELS
TRANSFORMATIONS
YIELDS