皂化渣固化电解锰渣机理及毒性浸出研究  

Study on mechanism and toxicity leaching of saponified slag solidified electrolytic manganese slag

作　　者：杨博 陈菁林[3] 宋旭 陆永东 魏建明 YANG Bo;CHEN Jing-lin;SONG Xu;LU Yong-dong;WEI Jian-ming(School of Civil Engineering,Chongqing Jiaotong University,Chongqing 400074,China;National and Local Joint Laboratory of Transportation and Civil Engineering Materials,Chongqing Jiaotong University,Chongqing 400074,China;Hubei Chushengke Road&Bridge Technology Development Co.,Ltd.,Xiangyang 441100,China)

机构地区：[1]重庆交通大学土木工程学院,重庆400074 [2]重庆交通大学交通土建工程材料国家地方联合工程实验室,重庆400074 [3]湖北楚晟科路桥技术开发有限公司,湖北襄阳441100

出　　处：《应用化工》2023年第6期1697-1700,共4页Applied Chemical Industry

基　　金：国家自然科学基金(51708071);黔科合重大专项(2022-002);贵州省交通运输厅科技项目(2021-22-005);重庆市技术创新与应用发展专项重点项目(cstc 2021jscx-jbgsX0006)。

摘　　要：基于“以废治废”思路,以皂化渣固化电解锰渣,不同固化方法的毒性浸出对比表明,30%皂化渣+3%生石灰复合,可实现对电解锰渣的无害化处理,SEM结果显示,经皂化渣和生石灰固化处理后,含锰的颗粒状矿物向更稳定的块状转变,有效的将各组分胶结在一起,从而抑制了Mn^(2+)的浸出。最后,通过柱浸试验验证了本研究固化方法的长期环保特性。Based on the idea of“treating waste with waste”,the comparison of toxic leaching of electrolytic manganese slag with saponified slag curing by different curing methods shows that 30%saponified slag+3% quicklime could achieve harmless treatment for electrolytic manganese slag.The SEM results showed that after the saponified slag and quicklime were solidified,the manganese containing granular minerals are changing to more stable blocks,effectively cementing the components together,thus inhibiting the leaching of Mn^(2+).Finally,the long-term environmental protection characteristics of this curing method were verified by column immersion test.

关 键 词：电解锰渣 皂化渣 固化 毒性浸出 

分 类 号：TQ172.1[化学工程—水泥工业] X781[化学工程—硅酸盐工业] X757[环境科学与工程—环境工程]