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目的研究3种饮水消毒片消毒相关性能,作出比较结论。方法采用理化性能分析和定量杀菌试验方法,对3种饮水消毒片有效成分含量、稳定性和杀菌效果进行了比较观察。结果 3种饮水消毒片溶解于水中2min,有效成分浓度均达到8.0 mg/L;溶于水中6 min,维善碘片和氯溴合剂片含量保持不变,但含氯双层消毒丸有效氯含量为0。在自然河水中分别加入消毒片溶解后有效成分含量均为8.0 mg/L,作用5 min后,水中大肠杆菌数为0;维善碘片和氯溴消毒片可持续24h保持水中大肠杆菌数为0,含氯双层丸只能保持12 h大肠杆菌数为0。结论维善碘片和氯溴合剂片稳定性和维持杀菌时间优于含氯双层消毒丸。
Objective To study the disinfection performance of three kinds of drinking water disinfection tablets, and to make a comparative conclusion. Methods The physical and chemical properties and quantitative bactericidal test methods were used to compare the content, stability and bactericidal effect of three kinds of drinking water disinfection tablets. Results The three kinds of drinking water disinfection tablets dissolved in water for 2min, the active ingredient concentration reached 8.0 mg / L; dissolved in water for 6 min, the contents of Weishan Iodine and Chlorobromide tablets remained the same, but the effective chlorine content Content of 0. In the natural river were added disinfectant dissolved active ingredient content are 8.0 mg / L, the role of 5 min, the number of E. coli in the water; Victoria good iodine tablets and chlorine bromine disinfection tablets can be sustained 24h 24h keep the number of E. coli 0, chlorine-containing bilayer pills can only maintain 12 h E. coli count as zero. Conclusion The stability and the maintenance time of Weishan Iodine and Chlorobromide tablets are better than that of double-layer chlorine-containing disinfection pills.