滑石处理含镍废水的试验研究

Experimental Study on Treatment of Ni-containing Wastewater With Talc

采用吸附实验方法,利用滑石处理含镍废水,探讨了滑石用量、反应时间和溶液pH值单因素对处理效果的影响,利用正交试验研究了综合因素对处理效果的影响,并确定最优工艺条件。结果表明:滑石对含镍废水处理效果良好,滑石处理含镍废水的各因素的影响关系大小为:溶液pH值>滑石用量>反应时间,最优工艺条件为A3B3C3,即滑石用量为7.0 g/L,反应时间为5 h,pH值为8.0。

Nickel containing wastewaterwastreatedwithtalcbythe adsorption method.The influence of talc dosage, reaction time and pH value on the treatment efficiencywasdiscussed, theorthogonal testwas usedtostudy the effect of comprehensive factors on the treatment efficiency,and the optimum process conditionsweredetermined.The results show that：thetalchas goodtreatmenteffect fornickel containing wastewater,thesequence of each factortoeffect treatmentefficiency of Ni containing wastewater：the pH value of the solution 〉talc dosage 〉 reaction time.The optimal technological conditionsare as follows：the talc content 7.0g/L,the reaction time 5h,the pH value 8.0.