摘要
目的探讨地震灾区乡镇集中式供水应急消毒措施,确保灾后生活饮用水质量。方法采用简易持续加氯装置法等应急消毒措施,通过余氯比色测定法检测分析了汶川地震灾区3个乡镇集中式供水质量情况。结果将含氯消毒片装入简易加氯装置内放于供水系统中,能很快使水中加氯量满足要求(1.0 mg/L左右),每间隔2 d加氯1次,可保持余氯量满足消毒要求(0.3 mg/L^0.5 mg/L)。经连续监测3个乡镇集中式供水站蓄水池水中余氯量合格率为100%,末稍水余氯量合格率达到93.2%。结论简易加氯装置适合地震灾区乡镇集中式供水应急消毒,可以确保灾区供水系统卫生质量。
Objective To explore the central water supply emergency disinfection measures for earthquake - stricken vil- lages and towns in order to ensure the post - disaster quality of drinking water. Methods Emergency disinfection measures such as simple continuous chlorination installation method were used. The quality of water in central water supply of the three earthquake -stricken Wenchuan villages and towns was examined and analyzed by residual chlorine colofimetric as- say. Results After the simple chlorination unit containing chlorine disinfection tablets was put in the water supply system, the chlorine content of the water quickly rose to meet the requirements （ 1.0 mg / L or so）. Adding chlorine at the interval of two days could keep the residual chlorine fulfilling the disinfection requirement （0.3 mg/L - O. 5 rag/L）. By continu- ous monitoring of the water in water store pools of the central water supply station, the elgible rate of residual chlorine was 100%, and the eligible rate of residual chlorine in end water reached 93.2%. Conclusion Simple chlorination equipment is suitable for emergency disinfection of earthquake - stricken villages and towns central water supply, and can ensure the hygienic quality of water supply systems in affected areas.
出处
《中国消毒学杂志》
CAS
2010年第1期55-56,共2页
Chinese Journal of Disinfection
关键词
地震灾区
乡镇集中式供水
消毒措施
简易加氯装置
earthquake disaster area
village and town central water supply
disinfection measures
simple chlorination unit
