摘要
以粒径—48μm零价铁粉作为参照物,对比研究Fe_(78)Si_(9)B_(13)非晶条带对水中Cr(Ⅵ)的去除效果。结果显示,非晶条带的去除过程满足伪一级动力学模型。反应25 min后,零价铁粉的Cr(Ⅵ)去除率仅为88%,非晶条带的去除率可达99.8%。对试验后反应产物进行观察分析,发现零价铁粉仅通过吸附去除Cr(Ⅵ),而非晶合金条带去除Cr(Ⅵ)的过程不仅有物理吸附,也发生了化学还原。
The removal effect of Cr(Ⅵ)in water by Fe_(78)Si_(9)B_(13)amorphous ribbons was compared with zero-valent iron powder with particle size of-48μm.The results show that the removal process of amorphous ribbons meets the pseudo-first-order dynamic model.After 25 minutes of reaction,the removal rate of zero-valent iron powders is only 88%,while the removal rate of amorphous ribbons is 99.8%.Through observation and analysis of the reaction products after the test,it is found that Cr(Ⅵ)is only removed by zero-valent iron powder through adsorption,while Cr(Ⅵ)is removed by amorphous alloy strip not only by physical adsorption,but also by chemical reduction.
作者
张香云
赵晨凯
袁明强
袁子洲
ZHANG Xiangyun;ZHAO Chenkai;YUAN Mingqiang;YUAN Zizhou(State Key Laboratory of Gansu Advanced Processing and Recycling of Non-ferrous Metal,Lanzhou University of Technology,Lanzhou 730050,China)
出处
《有色金属（冶炼部分）》
CAS
北大核心
2023年第10期120-125,共6页
Nonferrous Metals（Extractive Metallurgy)
基金
国家自然科学基金资助项目(52061024,52161027)
甘肃省自然科学基金资助项目(21JR7RA260)
兰州理工大学红柳优秀青年人才支持计划项目。
