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자료유형
학술저널
저자정보
김유경 (한국수자원공사 K-water 연구원) 김지연 (한국수자원공사 K-water 연구원) 서인석 (한국수자원공사 수자원연구원)
저널정보
한국수처리학회 한국수처리학회지 한국수처리학회지 제24권 제5호
발행연도
2016.1
수록면
87 - 94 (8page)

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The interest on reuse of wastewater has increased by lack of fresh water supply. Reverse osmosis (RO) process is one of the technology to reuse wastewater. It can be obtained high purity water from wastewater using the revese osmosis membrane. However, it also produces revese osmosis concentrate wastewater, including high levels of organic matter as the result of treatment. This study presents the Fenton's oxidation treatment as a way to handle the revese osmosis concentrate wastewater. The main objective of this research is to investigate effects of various factors such as pH, hydrogen peroxide (H2O2) dose, iron sulfate dose (as ferrous iron, Fe2+) and reaction time for removal of organics in revese osmosis concentrate wastewater by using Fenton's oxidation process. All tests were proceeding under the three steps: Fenton's reaction, Neutralization and Sedimentation. The results show that the Fenton's oxidation treatment was very effective in removing organics in revese osmosis concentrate wastewater. The optimum factors in Fenton's oxidation process of RO concentrate wastewater were determined; pH 3, 500 mg/L as H2O2, 1000 mg/L as Fe2+ and 30 minutes as reaction time. Under the optimum conditions, the removal efficiency of chemical oxygen demand (COD) was about 50 percent. Compared with the other processes, Fenton oxidation has a high removal efficiency of chemical oxygen demand. However, it generates a Fenton sludge and requires additional processing to remove them. Therefore, in order to apply the Fenton's oxidation in the actual process, it is determined that require additional research on the Fenton sludge treatment.

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