复杂酸性废水中硒深度脱除工艺研究  

Study on Deep Removal of Selenium from Complex Acidic Wastewater

作　　者：陈延进 CHEN Yanjin(Zijin Copper Co.,Ltd.,Longyan 364204,Fujian,China;Fujian Key Laboratory for Green P roduction of Copper and Comprehensi ve Utilization of Associ ated Resources,Longyan 364204,Fujian,China)

机构地区：[1]紫金铜业有限公司,福建龙岩364204 [2]福建省铜绿色生产及伴生资源综合利用重点试验室,福建龙岩364204

出　　处：《有色金属(冶炼部分)》2025年第4期195-200,共6页Nonferrous Metals(Extractive Metallurgy)

基　　金：福建省自然科学基金资助项目(2019J06028)。

摘　　要：研究了不同含硫化合物还原剂的还原除硒效果。确定了二价有机硫化合物作为铜冶炼含硒废水除硒用还原药剂,考察了还原剂添加量、反应温度、反应酸度和反应时间等对除硒效果的影响。确定了二价有机硫化合物还原沉硒最佳工艺条件为:酸度控制在80 g/L,药剂添加量1.0 g/L,80℃反应4 h,反应后废水硒含量降低至<0.1 mg/L,满足生产环保要求。The reducing effect of different sulfur compound reducing agents on selenium removal was studied.Bivalent organic sulfur compounds were identified as reducing agents for selenium removal from selenium containing wastewater of copper smelting.The effects of the amount of reducing agent,reaction temperature,reaction acidity and reaction time on the removal of selenium were investigated.The optimum process conditions for reducing selenium by divalent organic sulfur compounds are determined as follows:acidity controlled at 80 g/L,dosage of reagent of 1.0 g/L,reaction at 80℃ for four hours.After the reaction,the selenium content in wastewater is reduced to<0.1 mg/L,which met the environmental protection requirements of production.

关 键 词：化学还原法 含硫化合物 反应电位 

分 类 号：X52[环境科学与工程—环境工程] TF843[冶金工程—有色金属冶金]