HSPF를 이용한 병성천 유역 장기간 TOC 비점오염원 부하량 해석

Abstract

Due to drastic increase of population and industrial development, securing water resources and water-purity control are becoming a matter of major interest. The significance of flow and the quality of water model has been on the rise particularly after the introduction of water TMDL system and the importance of Non point source has been stressed. Model is widely utilized in controlling flow and water quality of watershed since it can predict flow, water quality or pollution load by mathematizing natural phenomena. For effective controlling of water, water use, supply and demand in accordance with watershed, comprehension about water quality of river and characteristics of physics and chemistry must be completed in addition to the completion of overall and organized accumulation toward data for research about actual condition of pollution. Technical analysis toward the influence that flow makes on floodgate, water quality needed to be considered with the TMDL management which the Ministry of Environment is recently carrying out and managing TMDL includes provisions about water modeling. To predict transitions that changes time and space according to pollution load and the diminution of pollution policy and for the analysis of predicting the influence that the fountainhead of water pollution reaches at pointed water quality aimed area, appropriate choice and application is crucial. The HSPF model applied to this research is developed for long period for simulating various occurrences over irrigation, water quality about large and small, complicated watershed. And it has been extensively used to simulate diverse conditions of floodgate and Non point source, land use controlling and flood control scenario, BMPs or TMDL. In this study, had investigated the flow of flux and sensitivity of water quality parameter, officially approved and did correction using data that measured flow and water quality simultaneously an interval of 8 days at the end of TMDL management watershed unit which done directly by Four-river water environment research center from the latter half of the year of 2004 aiming the watershed of Byeongseong river. Also, the research examined the application to the pollution management to the watershed by analyzing sub-basin pollution load by examining pollution load with fixed quantity of watershed.