Actions for Fixed-film, fluidized-bed bioreactors for biooxidation of coal conversion wastewaters. Progress report, October 1, 1984-September 30, 1985

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Fixed-film, fluidized-bed bioreactors for biooxidation of coal conversion wastewaters. Progress report, October 1, 1984-September 30, 1985

Author
Donaldson, T. L.
Published
United States : [publisher not identified], 1986
Springfield, Va.: National Technical Information Service, [approximately 1986]
Physical Description
microfiche : negative ; 11 x 15 cm
Additional Creators
Strandberg, G. W. and Worden, R. M.

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Summary
The technical feasibility of biooxidation treatment of 50% strength actual wastewater was successfully demonstrated using a fluidized-bed bioreactor. The wastewater was stripped to remove ammonia and sulfides prior to biotreatment. Additional experimental and modeling work confirmed the need to supply substantial oxygen to maintain high reaction rates. The reaction kinetics were shown to depend on the physical characteristics of the biofilms. Dynamic modeling and experimental studies have shown that classical reaction and diffusion concepts used in catalysis are adequate to describe the dynamic behavior of bench-scale bioreactors when the pH is constant. Oscillations in the reaction rate and phenol concentration were seen when the pH was not controlled. A status summary of the fluidized-bed bioreactor process for biooxidation of organics in coal gasification wastewaters is presented.
Report Numbers
DE86010000; ORNL/TM-9806
Other Subject(s)
Collection
NTIS collection.
Note
DOE contract number: AC05-84OR21400
OSTI Identifier 5953994
Research organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States).
View MARC record | catkey: 47365716