| 赣南地区选矿药剂自然光解及光催化降解特性 |
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| 引用本文： | 张振飞,曾婷,王春英,罗仙平.赣南地区选矿药剂自然光解及光催化降解特性[J].有色金属工程,2018,8(5). |
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| 作者姓名： | 张振飞 曾婷 王春英 罗仙平 |
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| 作者单位： | 江西理工大学资源与环境工程学院;江西省矿业工程重点实验室;西部矿业股份有限公司博士后科研工作站 |
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| 基金项目： | 中国博士后科学基金(2015M582776XE,2016T90967)；江西理工大学清江青年英才支持项目。第一作者张振飞(1992-),男,研究生；通信作者王春英,博士,副教授,研究方向为水污染控制,E-mail:cywang@jxust.edu.cn |
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| 摘 要： | 选矿废水中残余选矿药剂对水生生物有毒害作用,还可能导致尾矿库中重金属的释放,产生二次污染。通过自然光解、光催化降解及设置不同pH值等实验,考察不同类别药剂的降解特性:丁基黄药易于自然光解,黑药类药剂自然降解性能较差,苯甲羟肟酸(GYB)因含有苯环结构,其自然降解率也较低,降解特性与其分子结构有很大关系;pH值对不同药剂影响性能不同;光催化剂的使用大幅度提高了各药剂的降解率,同时提高了药剂的矿化率,使含N、S等有机药剂转化为NO_3~-、SO_4~(2-)等无机离子。
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| 关 键 词： | 选矿药剂 自然光降解 光催化降解 |
| 收稿时间： | 2017/9/17 0:00:00 |
| 修稿时间： | 2017/9/30 0:00:00 |
Natural Degradation Characteristics of Mineral Processing Agents in Gannan Region |
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| zhangzhenfei,zengting,wangchunying and luoxianping.Natural Degradation Characteristics of Mineral Processing Agents in Gannan Region[J].Nonferrous Metals Engineering,2018,8(5). |
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| Authors: | zhangzhenfei zengting wangchunying and luoxianping |
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| Affiliation: | Jiangxi University of Science and Technology,Jiangxi University of Science and Technology,Jiangxi University of Science and Technology,Jiangxi University of Science and Technology |
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| Abstract: | The residual beneficiation reagents from the mine wastewater are harmful to the aquatic organism, which could also result in the re-contamination of heavy metals in tailing impoundments. This research studied the degradation characteristics of several beneficiation reagents under natural sunlight and photocatalytic systems. As the result, butyl-xanthate was degraded easily by natrual light while dithiophosphate and GYB are refractory; pH values had different effects on different reagents; photocatalyst had very strong removal ability to all kinds of researched reagents, and could mineralize the N,P-containing reagents to NO3- and SO42-. |
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| Keywords: | Beneficiation reagents Natural degradation photocatalytic degradation |
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