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目的了解驻兰部队营区二次供水的卫生状况。方法现场调查二次供水基本卫生状况,同时采集末梢水进行水质检测。结果 35份末梢水样本,氨氮、亚硝酸盐氮合格率均为91.43%,大肠菌群、细菌总数、游离余氯合格率分别为88.57%、91.43%和71.43%,其余指标合格率均为100%。结论二次供水存在的主要问题是氨氮、亚硝酸盐氮、大肠菌群、细菌总数超标,游离余氯含量低。
Objective To understand the sanitary status of secondary water supply in the camps of the Forces of the Islamic Forces. Methods The situation of secondary water supply was investigated on the spot and the water quality of peripheral water was collected at the same time. Results The qualified rate of ammonia nitrogen and nitrite nitrogen in 35 samples of peripheral water was 91.43%. The passing rates of coliform bacteria, total bacteria and free residual chlorine were 88.57%, 91.43% and 71.43%, respectively. The pass rates of other indicators were all 100 %. Conclusion The main problems of secondary water supply are ammonia nitrogen, nitrite nitrogen and coliform bacteria, the total number of bacteria exceeds the limit, and the free residual chlorine content is low.