Anaerobic fermentation of simulated in-situ oil shale retort water

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The feasibility of removing soluble organics from oil shale retort water by anaerobic digestion with methane production was experimentally investigated. The following conclusions were made. The retort water studied had to be pretreated to remove toxic and add deficient constituents before it could be successfully treated with the anaerobic fermentation process. Pretreatment included pH adjustment to 7, ammonia reduction, and nutrient addition. A digested sludge from a conventional municipal sewage treatment plant was successfully acclimated to the retort water studied. A major fraction of the organics in the retort water studied was stabilized by conversion to CH/sub 4/ and CO/sub ... continued below

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Pages: 13

Creation Information

Ossio, E.A.; Fox, J.P.; Thomas, J.F. & Poulson, R.E. November 1, 1977.

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  • Lawrence Berkeley Laboratory
    Publisher Info: California Univ., Berkeley (USA). Lawrence Berkeley Lab.
    Place of Publication: Berkeley, California

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Description

The feasibility of removing soluble organics from oil shale retort water by anaerobic digestion with methane production was experimentally investigated. The following conclusions were made. The retort water studied had to be pretreated to remove toxic and add deficient constituents before it could be successfully treated with the anaerobic fermentation process. Pretreatment included pH adjustment to 7, ammonia reduction, and nutrient addition. A digested sludge from a conventional municipal sewage treatment plant was successfully acclimated to the retort water studied. A major fraction of the organics in the retort water studied was stabilized by conversion to CH/sub 4/ and CO/sub 2/ using the anaerobic fermentation process. BOD/sub 5/ and COD removal efficiences were 76 to 80 percent. The effluent from anaerobic fermentation of the retort water studied (BOD/sub 5/ : 530 to 580 mg/l) may be suitable for treatment by conventional aerobic processes. The growth of the methane formers, which stabilize the organics, is nutrient limited in the retort water studied. The pretreatment of the retort water studied removed 49 percent of the BOD/sub 5/. This was probably due to the reduction in solubility of high molecular weight fatty acids at neutral pHs. A major component removed from the retort water studied during anaerobic fermentation was fatty acids. The long hydraulic residence time used in this study would not be used in practice.

Physical Description

Pages: 13

Notes

Dep. NTIS, PC A02/MF A01.

Source

  • American Chemical Society conference, Anaheim, CA, USA, 12 Mar 1978

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  • Report No.: LBL-6855
  • Report No.: CONF-780305-6
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 5202624
  • Archival Resource Key: ark:/67531/metadc1057498

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • November 1, 1977

Added to The UNT Digital Library

  • Jan. 22, 2018, 7:23 a.m.

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  • Jan. 30, 2018, 7:02 p.m.

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Ossio, E.A.; Fox, J.P.; Thomas, J.F. & Poulson, R.E. Anaerobic fermentation of simulated in-situ oil shale retort water, article, November 1, 1977; Berkeley, California. (https://digital.library.unt.edu/ark:/67531/metadc1057498/: accessed March 25, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.