Biological denitrification of high-nitrates wastes generated in the nuclear industry

Conference · Tue Jan 01 00:00:00 EST 1980

OSTI ID:5511053

Francis, C. W.

Biological denitrification appears to be one of the most effective methods to remove nitrates from wastewater streams (Christenson and Harremoes, 1975). However, most of the research and development work has been centered on removal of nitrates from sewage or agricultural drainage waters, nitrate nitrogen concentration usually less than 50 g/m/sup 3/. Work was initiated at Oak Ridge National Laboratory (ORNL) in 1974 to test the use of biological nitrification in the removal of high concentrations of nitrate (in excess of 1.0 kg NO/sub 3/-N/m/sup 3/) from uranium purification waste streams. Since then, a full-scale treatment facility, a stirred reactor, has been installed at the Y-12 plant; and a pilot-plant, using a fluidized bed, has been proposed at Portsmouth Gaseous Diffusion Plant. The objective of this manuscript is to present some applied microbiological research relating to possible constraints in biologically denitrifying certain waste streams in the nuclear industry and comparing the effectiveness of denitrification of these waste streams in three bench scale reactors, (1) a continuous flow-stirred reactor, (2) stirred bed rector, and (3) a fluidized bed reactor.

• Research Organization: Oak Ridge National Lab., TN (USA)
• Sponsoring Organization: USDOE Office of Nuclear Energy (NE)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 5511053
• Report Number(s): CONF-800447-1; TRN: 80-007774
• Resource Relation: Conference: Water Research Centre and University of Manchester Institute of Science and Technology conference, Manchester, UK, 15 Apr 1980
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
59 BASIC BIOLOGICAL SCIENCES
MICROORGANISMS
BIOLOGICAL RADIATION EFFECTS
NITRATES
BIODEGRADATION
RADIOACTIVE WASTES
DENITRIFICATION
ACETATES
AMMONIUM COMPOUNDS
BENCH-SCALE EXPERIMENTS
CALCIUM
CHEMICAL REACTORS
EXPERIMENTAL DATA
FLUIDIZED BED
LIQUID WASTES
METHANOL
NICKEL
RADIOACTIVE WASTE MANAGEMENT
SODIUM
TABLES
ALCOHOLS
ALKALI METALS
ALKALINE EARTH METALS
BIOLOGICAL EFFECTS
CARBOXYLIC ACID SALTS
CHEMICAL REACTIONS
DATA
DATA FORMS
DECOMPOSITION
ELEMENTS
HYDROXY COMPOUNDS
INFORMATION
MANAGEMENT
METALS
NITROGEN COMPOUNDS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
RADIATION EFFECTS
RADIOACTIVE MATERIALS
TRANSITION ELEMENTS
WASTE MANAGEMENT
WASTES
052000* - Nuclear Fuels- Waste Management
550700 - Microbiology