Literature Review of Sediment Oxygen Demand and Nutrient Flux Measurement Techniques,
Abstract
The transfer of solutes across the sediment-water interface is an important factor in describing a marine or freshwater system. Sediment oxygen demand (SOD) and nutrient fluxes have received a great deal of attention in the last several years as the increase in pollutants has become a major problem. Most of the chemical reactions taking place in the sediments are associated with the decomposition of organic matter by microbes, as well as CaCO3 and SiO2-nH2O (Berner 1976). The reaction rate is highly dependent on the microbial activity of the sediment and, therefore, also dependent on temperature. The order and extent of the oxidation-reduction reactions are dependent on the concentrations of the reactants and the free energy available. The geochemical reaction in the sediments affects the pH and oxidation-reduction potential and can deplete or increase the reactants or products in both the fluid and solid phases of a deposit (e.g. Ben-Yaakov 1973; Goldhaber and Kaplan 1974).
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1992
- Accession Number
- ADP007784
Entities
People
- Heidi Vigil
Organizations
- Stony Brook University