期刊论文

Treatment of cadmium in uranium- containing wastewater

中文

矿业工程研究

1674-5876

2013

28

3

73-76

10.3969/j.issn.1674-5876.2013.03.016

湖南省科技厅资助项目（2011SK3086）；

本校为第一机构

研究了含铀废水中镉的处理方法.采用了矿渣水泥作为吸附剂,对废水中镉进行吸附实验,实验结果表明,矿渣水泥作为吸附剂,在溶液pH为3～12,镉的浓度为10 mg/L,吸附剂用量为处理水量的0.1％时,10 min即可达到吸附最大值,除去98.5％以上的镉.溶液中含有Fe3+,UO22+,Cu2,Zn2等离子时,吸附顺序为Cu2+ ＞UO22+ ＞Fe3+ ＞Zn2+ ＞Cd2+,共存的离子对镉的吸附率影响很大,可采用分段吸附,提高对镉的吸附率.

Research has been done on processing methods of cadmium in wastewater, then obtaining optimum adsorption conditions by using of slag cement as adsorbent, which adsorbs cadmium in uranium - containing wastewater. Results show that the slag cement can adsorb more than 98.5% of cadmium to top point in 10 min when pH is in the intervals from 3 to 12,the concentration of cadmium is 10 mg/L in solution, the dosage of adsorbent is 0.1% of the solution. The order of adsorption is Cu2 ＋ 〉 UO22 ＋ ）, Fe3 ＋ 〉 Zn2 ＋ 〉 Cd2 ＋ when the solution contai...