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http://dx.doi.org/10.14249/eia.2016.25.4.248

Effect of Pollutants Control Measures in So-oak Watershed on the Control of Algae Growth in Daecheong Reservoir  

Park, Hyung Seok (Department of Environmental Engineering, Chungbuk National University)
Yoon, Sung Wan (Ministry of Environment)
Chung, Se Woong (Department of Environmental Engineering, Chungbuk National University)
Hwang, Hyun Sik (K-WATER)
Publication Information
Journal of Environmental Impact Assessment / v.25, no.4, 2016 , pp. 248-260 More about this Journal
Abstract
This study was aimed to assess the effect of diverse pollutants control measures suggested in the Chuso basin and its upstream of So-oak stream watershed where are the most concerned areas on the control of algal bloom occurring in Daecheong Reservoir. The control measures were classified as watershed measures and in-reservoir measures, and their effects were simulated using a two-dimensional hydrodynamic and water quality model. The watershed measures were made up of 1) point sources control, non-point sources control, and their combinations. The in-reservoir measures were supposed to treat sediment at Chuso basin and to install a phosphorus elimination plant (PEP) at the end of So-oak stream. The results showed that the effect of each measure was influenced by the hydrological condition of the year. In wet year, as the contribution of non-point sources increased, the non-point source control measures (NPS1~NPS4) showed more effective compared to other measures, while, the PEP system to eliminate phosphorus from So-oak stream showed better performance in dry year. In particular, the scenario of NPS1, in which all livestock manures were collected and treated but only chemical fertilizers (NPS1) were used for agriculture fields, showed the best performance for the control of algal bloom in Chuso basin among the watershed measures.
Keywords
So-Oak stream watershed; Daecheong Reservoir; Algal control; Non-point sources control; Livestock manure;
Citations & Related Records
Times Cited By KSCI : 9  (Citation Analysis)
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