Environmental and Water Quality Operational Studies. Anaerobic and Aerobic Rate Coefficients for Use in CE-QUAL-R1.
Abstract
Anaerobic and aerobic rate coefficients for iron, manganese, orthophosphate-P, ammonium-N, and other nutrients were determined for a wide variety of reservoir sediments using laboratory reactor units. Predicted anaerobic rate coefficients derived using diffusion equations were compared to observed anaerobic rate coefficients for iron, manganese, ammonium-N, and orthophosphate-P. Actual ammonium-N release rates closely paralleled release rates predicted by diffusion equations; release rates for iron, manganese, and orthophosphate-P consistently exceeded predicted release rates. Remobilization of iron, manganese, and orthophosphate from the aerobic surface sediment layer during anaerobic conditions was postulated as the cause of the enhanced releases observed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1984
- Accession Number
- ADA145499
Entities
People
- D. Gunnison
- J. M. Brannon
- R. L. Chen