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Theoretical technique for predicting the cumulative impact of iron and manganese oxidation in streams receiving discharge from coal mines

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Theoretical technique for predicting the cumulative impact of iron and manganese oxidation in streams receiving discharge from coal mines; 1986; WRI; 86-4039; Bobay, Keith E.

Summary

Two U.S. Geological Survey computer programs are modified and linked to predict the cumulative impact of iron and manganese oxidation in coal-mine discharge water on the dissolved chemical quality of a receiving stream. The coupled programs calculate the changes in dissolved iron, dissolved manganese, and dissolved oxygen concentrations; alkalinity; and, pH of surface water downstream from the point of discharge. First, the one-dimensional, stead-state stream, water quality program uses a dissolved oxygen model to calculate the changes in concentration of elements as a function of the chemical reaction rates and time-of-travel. Second, a program (PHREEQE) combining pH, reduction-oxidation potential, and equilibrium equations uses an [...]

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Author :
Keith E. Bobay
Publisher :
U.S. Geological Survey

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Type Scheme Key
local-index unknown wri864039
local-pk unknown 26241
series unknown Water-Resources Investigations Report

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journalWater-Resources Investigations Report
languageEnglish
citationTypeReport

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