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Estimation of Dissolved Oxygen in Streams using Reaeration, 1st Production and Respiration Rates  

Kim, Kyung-Sub (Department of Environmental Engineering, Hankyong National University)
Hwang, Sung-Gyu (Pyungtaek Industrial Complex Management)
Publication Information
Journal of Korean Society of Environmental Engineers / v.31, no.6, 2009 , pp. 428-433 More about this Journal
Abstract
Dissolved oxygen is considered as one of the important water-quality constituents in streams from one century ago and fishes perish in low dissolved oxygen concentration. Environmental scientists and engineers have introduced the deterministic model to estimate dissolved oxygen concentration of streams and recommended the use of the Delta Method (DM), Approximate Delta Method (ADM), Extreme Value Method (EVM) and Optimization Method (OPT) which can be applied in no spatial variation of dissolved oxygen. The diurnal or annual variation of dissolved oxygen is mainly determined from the parameters such as reaeration rate, 1st production rate and respiration rate which are related to dissolved oxygen. Each method was briefly introduced and applied to two sampling sites of Anseong Stream watershed in this paper. The limitation, advantages and disadvantages of each method were reviewed and analyzed after running the each method. From these analyses, the benefit-cost approach to estimate dissolved oxygen effectively in streams was recommended.
Keywords
Dissolved Oxygen; Deterministic Model; Reaeration Rate; 1st Production Rate; Respiration Rate;
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