조류가 발생한 수질에 과망간산나트륨과 차아염소산 나트륨이 세포 손상도 및 부산물 발생에 미치는 영향 비교

Abstract

The effect of permanganate oxidation was investigated as water treatment strategy with a focus on comparing the reaction characteristics of NaOCl and sodium permanganate (NaMnO 4 ) in algae (Monoraphidium sp., Micractinium inermum, Microcystis aeruginosa)-contained water. Flow cytometry explained that chlorine exposure easily damaged algae cells. Damaged algae cells release intracellular organic matter, which increases the concentration of organic matter in the water, which is higher than by NaMnO 4 . The oxidation reaction resulted in the release of toxin (microcystin-LR, MC-LR) in water, and the reaction of algal organic matter with NaOCl resulted in trihalomethanes (THMs) concentration increase. The oxidation results by NaMnO 4 significantly improved the concentration reduction of THMs and MC-LR. Therefore, this study suggests that NaMnO 4 is effective as a pre-oxidant for reducing algae damage and byproducts in water treatment process.