Abstract:

Chlorine dioxide was used to kill the fourth instar larvae in reclaimed water. Inactivation effect under the condition of different dosage of chlorine dioxide, pH, contact time, larvae density and coexisting organic compound were investigated. The results showed that the 100% inactivation rate was obtained at the dosage of 52 mg/L of chlorine dioxide with 60 min contact time. Contact time greatly affected the inactivation effect, while pH and larvae density had little influence. In practical applications, the insects in water can be concentrated and enriched and then concentrated inactivated

Key words: chironomid larvae, inactivation, chlorine dioxide, reclaimed water

摘要：

采用二氧化氯灭活再生水中的4龄摇蚊幼虫，分别探讨了二氧化氯投加量、pH、接触时间、虫体密度及共存有机物等对灭活效果的影响。结果表明：二氧化氯投加量为52 mg/L、接触60 min时可达到100%的灭活率。二氧化氯的灭活效果受接触时间的影响较大，受pH影响较小。虫体密度对灭活效果影响较小，在实际应用中可将水中虫体先浓缩富集后再进行集中灭活处理。

关键词: 摇蚊幼虫, 灭活, 二氧化氯, 再生水

CLC Number: 

• TU991.25