铁炭微电解法去除电解锰废水中Mn^(2+)试验研究  

Removal of Mn^(2+) From Electrolytic Manganese Wastewater by Iron-carbon Micro-electrolysis

作　　者：高昭伟 王海峰[1,2] 赵平源 GAO Zhaowei1,2 , WANG Haifeng1,2 , ZHAO Pingyuan1,2(1. College of Materials and Metallurgy ,Guizhou University ,Gui yang 550025, China ; 2. Key lab of Metallurgical Engineering and Processe of Energy Saving of Guizhou Province ,Guiyang 550025,Chin)

机构地区：[1]贵州大学材料与冶金学院,贵州贵阳550025 [2]贵州省冶金工程与过程节能重点实验室,贵州贵阳550025

出　　处：《湿法冶金》2018年第2期124-127,共4页Hydrometallurgy of China

摘　　要：研究了采用铁炭微电解法去除电解锰生产废水中的Mn^(2+),考察了各种因素对Mn^(2+)去除效果的影响。结果表明:在废水初始pH为4.0、反应时间为150min、反应温度为20℃、铁炭质量比为1∶1、曝气条件下,Mn^(2+)去除率达92.22%,效果较好;出水经加碱混凝沉淀,Mn^(2+)去除率达98.87%,残留量为1.67mg/L,达到国家污水排放标准。Removal of Mn2＋ in industrial wastewater from electrolytic carbon micro-electrolysis technology was researched. The effects were examined. The results show that the remov reaches 92.22 % under the conditions of initial pH of 20 ℃ ,iron-carbon mass ratio of 1 ： 1. Further wastewater meets the national emission standard removal rate of Mn2＋ reaches 98.87 % and the res al efficiency o of vario f Mn2＋ manganese industry by iron- us factors on removal of Mn2＋ is optimum and removal rate of 4, reaction time of 150 min, reaction temperature , the concentration Mn2＋ in electrolytic manganese by adding-alkali sedimentating. By the process, the idue concentration is 1.67 mg/L.

关 键 词：微电解 废水 锰离子 沉淀 去除 

分 类 号：X703[环境科学与工程—环境工程]