作者
Xuchun Li, Jingyun Fang, Guifang Liu, Shujuan Zhang, Bingcai Pan, Jun Ma
发表日期
2014/10/1
期刊
Water research
卷号
62
页码范围
220-228
出版商
Pergamon
简介
Hydrated electron (eaq−), which is listed among the most reactive reducing species, has great potential for removal and detoxification of recalcitrant contaminants. Here we provided quantitative insight into the availability and conversion of eaq− in a newly developed sulfite/UV process. Using monochloroacetic acid as a simple eaq−-probe, the eaq−-induced dehalogenation kinetics in synthetic and surface water was well predicted by the developed models. The models interpreted the complex roles of pH and S(IV), and also revealed the positive effects of UV intensity and temperature quantitatively. Impacts of humic acid, ferrous ion, carbonate/bicarbonate, and surface water matrix were also examined. Despite the retardation of dehalogenation by electron scavengers, the process was effective even in surface water. Efficiency of the process was discussed, and the optimization approaches were proposed. This …
学术搜索中的文章
X Li, J Fang, G Liu, S Zhang, B Pan, J Ma - Water research, 2014