芬顿试剂处理甲氰菊酯农药废水的试验研究

Study on Fenton Reagent Processing Fenpropathrin Wastewater

采用单因素试验方法,用芬顿试剂对粉煤灰基混凝剂吸附后的甲氰菊酯农药废水做进一步处理,以探讨新的甲氰菊酯农药废水处理技术,并确定芬顿试剂处理的最佳条件。结果表明,在甲氰菊酯农药废水pH为4、30%(质量分数)H2O2用量为15 mL/L、FeSO4.7H2O用量为2.0 g/L、温度为50℃、反应时间为60 min时,芬顿试剂处理效果最佳,此条件下CODCr去除率达95.78%。

Fenpropathrin wastewater was treated with Fenton reagent after absorption of fly ash coagulant. Single factor tests was applied to explore a new treatment techology for fenpropathrin wastewater and to optimize the conditions for Fenton treat- ment. The optimal experimental conditions were dtermined as follows, pH, 4; dosage of 30%（mass fraction） hydrogen perox- ide, 15 mL/L; dose of FeSO4 7H2O, 2.0 g/L; reaction temperature, 50 ℃; reaction time, 60 min. Under these conditions, the removal rate of wastewater CODCr reached up to 95.78%.