【摘要】 [目的]通过实验探讨甲氰菊酯农药废水处理的新方法。[方法]采用正交试验及单因素试验确定粉煤灰基混凝剂制备及处理甲氰菊酯农药废水的最佳条件。[结果]粉煤灰基混凝剂制备的最佳条件:粉煤灰/酸比为1∶4(m/V),粉煤灰/碱比为1∶3(m/V),熟化温度为40℃;处理废水的最佳条件:投加量5 L/100L,温度为30℃,pH值为4,反应时间为3 h,CODCr去除率为50.91%。[结论]粉煤灰基混凝剂处理甲氰菊酯农药废水效果良好,值得进一步探讨。更多还原

【Abstract】 New method for the treatment of fenpropathrin wastewater was investigated in this paper.[Methods]Orthogonal test and single factor test were employed to get the optimal condition for the preparation of fly ash-based coagulant and treatment of fenpropathrin wastewater.[Results]Results showed that the optimum conditions for the preparation of fly ash-based coagulant was as follows: the ratio of coal fly ash to mixed acid(HCl+H2SO4) was 1/4(m/v),the ratio of coal fly ash to NaOH solution was 1/3(m/v),the curing temperature was 40 °C;the fly ash-based coagulant optimum conditions for wastewater treatment was as follows,the adsorption time was 3 h,the reaction temperature was 30 °C,the pH was 4,the dosage was 5 L/100L.The removing rate of wastewater CODCr reached 50.91%.[Conclusions]The prepared fly ash-based coagulant is effective for the treatment of fenpropathrin wastewater,and worth the further investigating.更多还原