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논문 기본 정보

자료유형
학술저널
저자정보
문백수 (인천광역시 보건환경연구원) 김준현 (인천시 상수도사업본부 수질연구소) 황태문 (한국건설기술연구원)
저널정보
한국수처리학회 한국수처리학회지 한국수처리학회지 제25권 제3호
발행연도
2017.1
수록면
53 - 64 (12page)

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Free chlorine produced with electrolysis of water can be a very useful disinfectant for the removing pathogen microorganism. This study presents the evaluation of free chlorine generation and reduction by electrolysis without adding salts and pulse UV hybrid system. In this study, 11 insoluble electroded plants were installed in the electrolytic cell and a current of 5 A~50 A was supplied using retifier which is a DC power supply device. The electrode plates used in this experiment were installed at intervals of 3 ㎜between the oxidizing electrode and the reducing electrode. The production of residual chlorine by electrolysis increased in proportion to the applied current. As a result of repeated experiments at the flow rate of 5 L/min and 35 A for the stability test, residual chlorine had an average of 9.22 ㎎/L, standard deviation of 0.10 ㎎/L and relative standard deviation of 1.04 %. Power consumption to produce 1 mg/L of residual chlorine at 5 L/min was 11.7 W. It was evaluated that the residual chlorine was removed in proportion to the applied voltage during the pulse UV irradiation. At 1.0 m3/hr of flow rate, 1 ㎎/L of residual chlorine decreased to 0.5 ㎎/L when irradiated with 820 V pulse. Residual chlorine concentration of 3 mg/L was completely removed at 1540 V irradiation. There was no change in water temperature according to the applied voltage of pulse UV irradiation, and UV254 was decreased in proportion to the applied voltage. The by-products generated by generated residual chlorine in the reactor such as trihalomethanes(THMs) and haloacetic acids(HAAs) were detected in less than a water quality standards.

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