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为确定二次供水在何种情况下需要消毒,历城区卫生防疫站对R(日用水量/水池容积之比)<1、=1、=6、=10等四种情况的二次供水设施进池水、出池水余氯进行了调查,结果表明:R≤6时.出池水余氯浓度明显低于进池水(P<0.05).需要再进行消毒;R≥10时,出池水余氯浓度与进池水无显著性差异,在进池水余氯含量符合标准的情况下,没有必要再进行消毒。
To determine the secondary water supply under what circumstances need to be disinfected, Licheng District Health and Epidemic Prevention Station of R (daily water volume / pool volume ratio) <1, = 1, = 6, = 10 four cases of secondary water supply facilities The results showed that when R≤6, the concentration of residual chlorine in the water was significantly lower than that in the water (P <0.05), and disinfection was needed again. When R≥10, the residual chlorine concentration in the water There was no significant difference with the water into the pool, into the pool remaining chlorine content in line with the standard case, there is no need for further disinfection.