工程科学学报2017，Vol.39Issue(5)：669-675,7.DOI:10.13374/j.issn2095-9389.2017.05.004
城市再生水中大肠杆菌在浮选过程中迁移规律
Transport of E. coli of reclaimed water in flotation system
窦培谦 1寇珏 2孙春宝 1李明颖1
作者信息
- 1. 北京科技大学土木与资源工程学院, 北京100083
- 2. 中国劳动关系学院安全工程系,北京100048
- 折叠
摘要
Abstract
The transport of E. coli in reclaimed water in floatation system was investigated through simulate flotation, adsorption experiment and desorption experiments. The results show that E. coli in reclaimed water is rapidly adsorbed by ore particles, while tail-ing waste water can be reused to floatation safely. However, concentrates, middlings and tailings can pose health risks under certain exposure conditions. The transport of E. coli in flotation processes is dominated by the attachment of E. coli onto ore particles. Removal and adsorption rates decrease as the concentrations of E. coli increase. Meanwhile, E. coli adsorption on ore particles is sensitive to the changes of solution pH, and decreases as the solution pH increases. The attachment of E. coli onto mineral particles increases signifi-cantly at the presence of collector kerosene, PJ053, and the pH-adjusting agents CaO.关键词
再生水/大肠杆菌/浮选/迁移/吸附Key words
reclaimed water/Escherichia coli/floatation/transport/adsorption分类
矿业与冶金引用本文复制引用
窦培谦,寇珏,孙春宝,李明颖..城市再生水中大肠杆菌在浮选过程中迁移规律[J].工程科学学报,2017,39(5):669-675,7.
