Kinetics of biological ferrous iron oxidation

Conference · Tue Jan 01 00:00:00 EST 1985

OSTI ID:5484738

Wichlacz, P L; Olem, H

A mathematical model of growth and ferrous iron oxidation for attached bacteria was applied to rotating biological contactor (RBC) units treating acidic mine drainage. The model describes attached bacterial growth as a saturation function, where the rate of substrate utilization is determined by a maximum substrate oxidation rate constant, a half saturation constant, and the concentration of substrate within the RBC. The maximum oxidation rate constant was proportional to flow rate and the substrate concentration in the reactor varied with influent substrate concentration. The model was tested at three separate sites and with three different size RBC units. The ability of the model to predict the rate of iron oxidation under all test conditions was significant. The accurancy of the model was found to be affected by unit size and vary with specific test site. 17 refs., 6 tabs.

• Research Organization: EG and G Idaho, Inc., Idaho Falls (USA); Tennessee Valley Authority, Chattanooga (USA)
• DOE Contract Number: AC07-76ID01570
• OSTI ID: 5484738
• Report Number(s): EGG-M-27484; CONF-850211-12; ON: DE85014616
• Resource Relation: Conference: 114. AIME annual meeting (includes Society of Mining Engineers), New York, NY, USA, 24 Feb 1985
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
59 BASIC BIOLOGICAL SCIENCES
BACTERIA
GROWTH
IRON
BIOCHEMICAL REACTION KINETICS
ACID MINE DRAINAGE
BIOREACTORS
MATHEMATICAL MODELS
OXIDATION
CHEMICAL REACTIONS
ELEMENTS
KINETICS
METALS
MICROORGANISMS
REACTION KINETICS
TRANSITION ELEMENTS
520200* - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)
550700 - Microbiology