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目的为保护积石峡库区周边环境卫生和人群健康,对库区一般污染源进行清理消毒,评价消毒的效果。方法按照消毒技术方案对积石峡库区淹没区的厕所、畜圈、垃圾堆的粪便和垃圾进行清理消毒,消毒前后进行微生物检验,经统计学处理判断各组之间的显著性差异,分析消毒效果。结果库区消毒前平均细菌总数为5.85×106cfu/cm2,消毒后平均细菌总数为2.19×104cfu/cm2,细菌总数的杀灭率为99.63%,经统计学检验消毒前后细菌总数差异有统计学意义,消毒效果明显;库区消毒前大肠菌群阳性数为76份,消毒后大肠菌群阳性数为5份,大肠菌群的杀灭率为93.42%,经统计学检验消毒前后大肠菌群阳性率差异有统计学意义,消毒效果明显。结论此次黄河积石峡库区消毒取得良好效果。
Objective To protect the environmental health and the health of people around Jishixia reservoir area, to clean up and disinfect the common pollution sources in the reservoir area and evaluate the effect of disinfection. Methods According to the disinfection technology scheme, the excrement and rubbish of latrines, livestock pens and garbage dumps in the inundation area of Jishishixia reservoir area were cleaned and disinfected. The microbial tests were conducted before and after disinfection. The significant differences among the groups were judged by statistical analysis. Disinfection effect. Results The average number of bacteria before disinfection in the reservoir area was 5.85 × 106cfu / cm2, the average number of bacteria after disinfection was 2.19 × 104cfu / cm2, the total number of bacteria was 99.63%. The total number of bacteria before and after disinfection was statistically significant , The disinfection effect was obvious. The number of positive coliform bacteria before disinfection was 76 in the reservoir area, 5 coliform positive numbers after disinfection and 93.42% coliform bacteria. The coliform bacteria positive The difference was statistically significant, disinfection effect is obvious. Conclusion The Yellow River Jishi Xia reservoir disinfection achieved good results.