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IMPORTANCE OF CO 2 LOSS IN LAKE QUALITY PREDICTIONS 1
Author(s) -
Chadderton Ronald A.
Publication year - 1981
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1981.tb03940.x
Subject(s) - alkalinity , tributary , water quality , effluent , environmental science , hydrology (agriculture) , mass transfer , carbon fibers , mass transfer coefficient , transfer (computing) , environmental engineering , chemistry , geology , materials science , ecology , geotechnical engineering , computer science , cartography , organic chemistry , chromatography , composite number , composite material , biology , geography , parallel computing
Water quality models of acid mine drainage effects have involved routing alkalinity and inorganic carbon loads through a hydraulic description of the system. A method is given to estimate conservatively the importance of surface mass transfer of CO 2 in lake modeling. The impact of CO 2 transfer upon water quality of lake effluent depends upon tributary concentrations and flow rates, initial pH of the water, and the effective mass transfer coefficient. Charts for preassigned allowable errors in acidity and pH due to neglected gas transfer are developed. Data from three reservoirs are related to the charts to estimate the relative importance of CO 2 transfer. Significant reduction in modeling effort can be achieved in cases for which errors caused by neglected CO 2 loss would be within acceptable limits.