摘要
研究了Mn-Sn-Ce/GAC粒子电极负载液组成对4-氯酚模拟废水电化学处理效果的影响。通过响应面法优化了Mn-Sn-Ce/GAC粒子电极负载液的组成,最优配比为SnCl_4·5H_2O 50 g/L、CeCl_3·7H_2O 3.7 g/L、Mn(NO_3)_2 25 g/L。以最优配比制备的Mn-Sn-Ce/GAC粒子电极处理200 mL 200 mg/L的4-氯酚废水,在电解质Na_2SO_4为0.05 mol/L、板间距为3 cm、电流为1 A、Mn-Sn-Ce/GAC为10.0 g、电解15 min条件下,4-氯酚去除率达98.97%。
The influences of the components of Mn-Sn-Ce/GAC particle electrode load liquid on the electrochemical treatment capability for 4-chlorophenol simulated wastewater have been investigated. The composition of Mn-SnCe/GAC particle electrode load liquid has been optimized by the response surface method. The optimal ratio is that SnCl_4·5 H_2O is 50 g/L, CeCl_3·7 H_2O 3.7 g/L,and Mn(NO_3)_2 25 g/L. The prepared Mn-Sn-Ce/GAC particle electrodes are used for the treatment of 200 mL of 4-chlorophenol wastewater(its mass concentration is 200 mg/L). Under the following conditions:the concentration of Na_2SO_4 is 0.05 mol/L,plate spacing 3 cm,current 1 A,Mn-Sn-Ce/GAC particle electrode dosage 10.0 g,and electrolysis time 15 min,the removing rate of 4-chlorophenol is 98.97%.
引文
[1]周珊,陈传文.电-Fenton法处理4-氯酚废水[J].环境污染治理技术与设备,2004,5(10):56-59.
[2]Chang C F,Lee S C.Adsorption behavior of pesticide methomyl on activated carbon in a high gravity rotating packed bed reactor[J].Water Research,2012,46(9):2869-2880.
[3]王维明,张冉,王树涛,等.非均相光Fenton降解4-氯酚的研究[J].安全与环境学报,2013;13(1):31-35
[4]闫肖茹.几种电化学法处理苯酚废水试验研究[D].兰州:西北师范大学,2011.
[5]梁宏,任阳民,邱阳,等.三维电极法处理含氯废水过程中电解活性氯的研究[J].工业水处理,2017,37(9):37-40.