再生水中影响加氯消毒的因素探讨与对策分析

Discussion and analysis on factors for chlorine disinfection in reclaimed water

针对再生水厂冬春之交突发的清水池耗氯量增加的问题,对影响加氯消毒的因素进行了试验分析,发现耗氯量增高的原因为冬季低水温情况下,清水池中存在不完全硝化反应,生成的亚硝酸盐氮累积到一定程度将大量耗氯。实践证明,冬季过后应及时对清水池进行清洗,一年进行2次,可有效预防和解决耗氯量增高的问题。

Aimed at the issues of the sudden increase of chlorine consumption in clean water tank during the end of winter in reclaimed water plant, the experimental analysis on factors for chlorine disinfection was conducted. The results indicated that the reason for the increase of chlorine consumption rate was the incomplete nitrification in clean water tank under low water temperature in winter, and the chlorine was largely consumed cause of the accumulation of nitrite. The practice proved that the clean water tank needed to be washed immediately after winter, twice a year better. It could prevent and resolve the increase of chlorine consumption effectively.