摘要
本文探究了模拟采选矿废水电氧化处理的工艺优化,并用实际冶炼废水进行了适应性验证。通过优化反应时间、电流强度、COD初始浓度、pH值、极板对数等工艺参数,获取了电氧化处理黄药模拟液的最佳工艺条件:反应时间120 min,电流强度3 A,pH值为7,COD初始浓度为300 mg/L的黄药模拟液中COD的去除率为80%。此外,在电氧化过程中采用臭氧曝气,曝气后的COD去除率比未曝气时提高4%左右。最后,采用某冶炼废水进行适应性验证,电解60 min,COD可去除72.43%,这与处理黄药模拟液效果基本相当。
This paper explores the process optimization of hydroelectricity oxidation treatment of simulated mining and beneficiation waste water,and verifies the adaptability with actual smelting waste water.By optimizing the reaction time,current intensity,initial concentration of COD,pH value,plate number and other process parameters,the optimal process conditions of electro oxidation treatment of xanthate simulation solution were obtained:reaction time 120 min,current intensity 3 A,pH value 7,initial concentration of COD 300 mg/L,the removal rate of COD in xanthate simulation solution was 80%.In addition,the removal rate of COD increased by about 4%when ozone aeration was used in the electro oxidation process.Finally,The smelter wastewater was used for adaptability verification,and the COD could be removed by 72.43%after 60 min electrolysis,which was basically equivalent to the effect of treating xanthate simulation solution.
作者
赵次娴
赵淑宏
陈龙
金利平
岑家山
雷吟春
廖圆
孟云
高伟荣
王凯
Zhao Cixian;Zhao Shuhong;Chen Long;Jin Liping;Cen Jiashan;Lei Yinchun;Liao Yuan;Meng Yun;Gao Weirong;Wang Kai(Science Environmental Protection Co.,Ltd.,Changsha 410000;Hu’nan Engineering Laboratory of Nonferrous Heavy Metal Pollution Control Equipment,Changsha 410000;Pollution Control and Equipment Engineering Research Center for Non-ferrous Industry,Changsha 41000,China)
出处
《广东化工》
CAS
2022年第10期78-81,共4页
Guangdong Chemical Industry
关键词
电氧化
黄药
有色行业
COD
废水
electro-oxidation
xanthate
COD
wastewater
non-ferrous industry
