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Title: A model of manganese and iron fluxes from sediments
Authors: HydroQual, Inc.
Water Quality Research Program (U.S.)
Di Toro, Dominic M.
Fitzpatrick, James F.
Isleib, Richard R.
Keywords: Iron
Marine sediments
Aquatic sediments
Sediment flux
Mathematical models
Numerical models
Water chemistry
Water quality
Publisher: Environmental Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Description: Contract Report
Abstract: Iron and manganese are installed as state variables in a previously developed benthic sediment model. Initial emphasis is placed on manganese because of availability of observations. Mass-balance and chemical equilibrium equations for manganese in benthic sediments are presented. The model is tested in steady-state and time-variable mode against observations collected in Long Island Sound and Narragansett Bay. The initial model captures seasonal trends in sediment manganese release, although the magnitude of seasonal variability is underestimated. Improvement of the model through representation of manganese carbonate solubility is recommended.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Contract Report

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