Actions for Novel microorganism for selective separation of coal from ash and pyrite. Second quarterly technical progress report, 1 December 1993--28 February 1994 [electronic resource].

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Novel microorganism for selective separation of coal from ash and pyrite. Second quarterly technical progress report, 1 December 1993--28 February 1994 [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 1994.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
20 pages : digital, PDF file
Additional Creators
Mackay School of Mines, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The objective of this project is to study the effectiveness of a novel hydrophobic microorganism, Mycobacterium phlei (M. phlei), for the selective flocculation of coal from pyrite and ash forming minerals. During the reporting period, the hydrophobicity of different coal samples was studied both in the presence and absence of M. phlei cells. In the absence of M. Phlei, Illinois No. 6 and Pennsylvania No. 8 exhibited higher contact angles as compared to Kentucky No. 9 coal. All the coal samples exhibited a maximum in contact angle around pH 5--7, which roughly coincides with the iso-electric point (iep) of different coals studied in this investigation. In the presence of M. phlei, maximum contact angle shifted to lower pH range of 2--3 which coincides with the iep of the M. phlei. These measurements reinforce the notion that good flocculation of coal with M. phlei can be achieved around pH 2--3. The amount of soluble fraction released during rupturing of M. phlei cells was studied as a function of sonication time. The rupturing experiments showed that the whole cells (unruptured cells) contain nearly 40% by weight of soluble fractions. Also, during the reporting period, the fabrication of the counter-current flocculation device was completed.
Report Numbers
E 1.99:doe/pc/93215--t2
doe/pc/93215--t2
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
05/01/1994.
"doe/pc/93215--t2"
"DE94011783"
"AA1525050"
Smith, R.W.; Misra, M.; Raichur, A.M.
Type of Report and Period Covered Note
Quarterly; 01/01/1994 - 03/31/1994
Funding Information
FG22-93PC93215
View MARC record | catkey: 13840298