Sediment Oxygen Demand and Its Effects on Dissolved Oxygen Concentrations and Nutrient Release; Initial Laboratory Studies

Abstract : Three different approaches for examining sediment oxygen demand (SOD) are discussed. These include the use of freshwater sediment amended with organic matter as a source of energy to drive SOD processes, the use of successive aerobic/anaerobic cycles to determine the flux of organic and reduced inorganic chemical species released from the sediment to the water column as a result of SOD, and the evaluation of interactions occurring between the sediment and water column in relation to SOD-driven processes occurring within the sediment. Results are summarized and discussed in terms of measurement and analytical techniques used to describe SOD interaction in fresh and saltwater sediments. Dissolved oxygen, Sediment-water interactions, Nutrient flux, SOD, Sediment oxygen demand, Water quality.