文章基本信息

标题：INACTIVATION OF Monopylephorus limosus BY CHLORAMINE, CHLORINE DIOXIDE, AND HYDROGEN DIOXIDE: EFFECTIVENESS AND SAFETY
本地全文：下载
作者：Xiaoshan Zhu ; Baiyang Chen ; Lihong Zhao 等
期刊名称：Fresenius Environmental Bulletin
印刷版ISSN：1018-4619
出版年度：2015
卷号：24
期号：7
页码：2334-2340
语种：English
出版社：PSP Publishing
摘要：The occurrence of redworms in water supplies raises concerns among consumers regarding the safety of their drinking water. In this study, the inactivation effects of three disinfectants, chloramines, chlorine dioxide (ClO2), and hydrogen peroxide (H2O2), on the redworm (Monopylephorus limosus) in tap water were comparatively evaluated. After inactivation, a Photobacterium phosphoreum acute toxicity experiment and a zebrafish embryonic development toxicity experiment were conducted to evaluate the safety of the disinfected water. The results show that chloramines with 4 mg/L residual chlorine has relatively good effect in killing redworm, and the disinfected water maintains low health risks; in contrast, the tap water is high toxic after killing redworm with even a low concentration (0.005%) of H2O2, suggesting that H2O2 is probably not a good disinfectant for controlling redworm in water supply; ClO2 at 6- 8 mg/L level can inactive redworm effectively while the risk of disinfected water to human health remains low. Based on the overall results of disinfection effectiveness, side-effect chemical safety, and practicality, chloramines and ClO2 appear to be useful in reducing redworm risks in water supplies.
关键词：Redworm; inactivation; tap water; safety