三维电芬顿法处理含氰废水实验研究  

Experimental Study on the Treatment of Cyanide-Containing Wastewater by Three-Dimensional Electro-Fenton Method

作　　者：周思颖 赵丽[1,2] 朱静平[1,2] ZHOU Siying;ZHAO Li;ZHU Jingping(School of Environment and Resource,Southwest University of Science and Technology;Low-cost Wastewater Treatment Technology International Sci-Tech Cooperation Base of Sichuan Province,Southwest University of Science and Technology:Mianyang 621010,China)

机构地区：[1]西南科技大学环境与资源学院 [2]西南科技大学低成本废水处理技术四川省国际科技合作基地,四川绵阳621010

出　　处：《水处理技术》2024年第7期42-48,共7页Technology of Water Treatment

基　　金：四川省自然科学基金(23ZS2109)。

摘　　要：构建以钌铱锡为阳极、不锈钢为阴极、铁碳微电解填料为粒子电极的三维电芬顿—Fe/C-MEF(铁碳微电解)系统。分析该系统在不同曝气量、电流密度、初始pH和极板距离条件下对废水中COD、TN和氨氮处理效果的影响,并且在优化的工艺操作条件下探究该系统对废水中总氰化物(TCN)的处理效果。结果表明,适宜该系统对废水处理的单因素条件为:曝气量1.2 L/min、电流密度35 mA/cm^(2)、不调节废水初始pH、极板距离4 cm;在该优化的单因素条件下,电解系统对废水中的TCN具有很好的去除效果,电解3 h时对TCN的去除率可达98.3%。A three-dimensional electro-Fenton-Fe/C-MEF system was constructed with ruthenium-iridium-tin as the anode,stainless steel as the cathode,and iron-carbon microelectrolytic filler as the particle electrode.The effects of this system on the treatment of COD,TN and ammonia nitrogen in wastewater were analyzed under different conditions of aeration,current density,initial pH and pole plate distance.The effect of the system on the treatment of total cyanide(TCN)in wastewater was also investigated under the optimized process operating conditions.The findings demonstrated that the one-factor conditions optimal for the wastewater treatment system are:aeration volume of 1.2 L/min,current density of 35 mA/cm^(2),no adjustment of the initial pH value of wastewater,and the distance of the pole plate of 4 cm.And under the optimized single-factor conditions,the electrolysis system had a good removal effect on TCN in wastewater,and the removal rate of TCN could reach 98.3%after 3 h of electrolysis.

关 键 词：电化学 三维电芬顿 含氰废水 

分 类 号：X703.1[环境科学与工程—环境工程]