含铊铀尾矿库渗出水处理工艺及工程应用  

Treatment technology and engineering application of thallium-bearing seepage water from uranium tailings pond

作　　者：刘津麟[1] 孟舒[1] 钟平汝[1] 吴永永[1] LIU Jinlin;MENG Shu;ZHONG Pingru;WU Yongyong(Beijing Research Institute of Chemical Engineering and Metallurgy,CNNC,Beijing 101149,China)

机构地区：[1]核工业北京化工冶金研究院,北京101149

出　　处：《有色金属（矿山部分）》2022年第4期110-114,共5页NONFERROUS METALS(Mining Section）

摘　　要：为解决广东某铀矿山尾矿库废水中铊元素超标的问题,开展了氧化沉淀除铊的工艺试验研究。小试结果表明:通过石灰中和控制pH值在9~10,氧化剂用量为2 mL/L,处理后废水中铊含量可降至0.5μg/L以下,满足广东省地方标准。工程应用结果表明:流程运行稳定,除铊效果良好,出水铊含量基本保持在1μg/L左右,吨水处理试剂成本约为0.99元。此工艺是一种简单有效、经济可行的废水处理工艺,可作为其他铀矿山含铊废水处理的技术储备。A technology of removal thallium from thallium-bearing seepage water by oxidation precipitation was studied to solve the problem of the thallium exceeding the standard in a uranium mine tailings pond waste water in Guangdong province.The results show that the thallium content of wastewater can be reduced to less than 0.5μg/L by neutralizing with lime with the pH between 9 and 10 and adding oxidizing agent dosage of 2 mL/L,which meets the local standard of Guangdong province.The engineering application results show that the process runs stably and the effect of thallium removal is good.The thallium content is maintained at about 1μg/L and the cost of the reagent per ton is about 0.99 Yuan.This process is a simple,effective,economical,and feasible treatment process for thallium-bearing seepage water and can be used as a technical reservation for thallium waste water treatment for other uranium mines.

关 键 词：铀矿山 铊 废水 尾矿库 工程应用 

分 类 号：X751[环境科学与工程—环境工程]