Water Quality Research Program. A Model of Manganese and Iron Fluxes from Sediments

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. Iron, Model, Manganese, Sediments

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1994
Accession Number
ADA283778

Entities

People

  • Dominic M. Di Toro
  • James F. Fitzpatrick
  • Richard R. Isleib

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Army Corps Of Engineers
  • Bays
  • Calcium Compounds
  • Carbonates
  • Chemical Equilibrium
  • Chemical Reactions
  • Chemical Synthesis
  • Chemistry
  • Chesapeake Bay
  • Computer Programs
  • Equations
  • Long Island Sound
  • Mass Transfer
  • New York
  • Steady State
  • Water Quality
  • Waterways

Fields of Study

  • Environmental science

Readers

  • Coastal and Marine Engineering/Sediment Transport/Hydraulic Engineering
  • Computational Modeling and Simulation
  • Surface Engineering/Surface Coating Technology.