Please wait a minute...
ZJUS-B
Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology)  2006, Vol. 7 Issue (5): 404-410    DOI: 10.1631/jzus.2006.B0404
Chemical and Environmental Engineering     
Hg0 absorption in potassium persulfate solution
Ye Qun-feng, Wang Cheng-yun, Wang Da-hui, Sun Guan, Xu Xin-hua
Department of Environmental Engineering, Zhejiang University, Hangzhou 310027, China
Download:     PDF (0 KB)     
Export: BibTeX | EndNote (RIS)      

Abstract  The aqueous phase oxidation of gaseous elemental mercury (Hg0) by potassium persulfate (KPS) catalyzed by Ag+ was investigated using a glass bubble column reactor. Concentration of gaseous mercury and potassium persulfate were measured by cold vapor atom absorption (CVAA) and ion chromatograph (IC), respectively. The effects of pH value, concentration of potassium persulfate and silver nitrate (SN), temperature, Hg0 concentration in the reactor inlet and tertiary butanol (TBA), free radical scavenger, on the removal efficiency of Hg0 were studied. The results showed that the removal efficiency of Hg0 increased with increasing concentration of potassium persulfate and silver nitrate, while temperature and TBA were negatively effective. Furthermore, the removal efficiency of Hg0 was much better in neutral solution than in both acidic and alkaline solution. But the influence of pH was almost eliminated by adding AgNO3. High Hg0 concentration has positive effect. The possible reaction mechanism of gaseous mercury was also discussed.

Key words： Potassium persulfate      Gaseous elemental mercury      Absorption      Reaction mechanism     
Received: 20 October 2005     
CLC:  X78  
  X701.7  
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors
Ye Qun-feng
Wang Cheng-yun
Wang Da-hui
Sun Guan
Xu Xin-hua
Cite this article:

Ye Qun-feng, Wang Cheng-yun, Wang Da-hui, Sun Guan, Xu Xin-hua. Hg0 absorption in potassium persulfate solution. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2006, 7(5): 404-410.

URL:

http://www.zjujournals.com/xueshu/zjus-b/10.1631/jzus.2006.B0404     OR     http://www.zjujournals.com/xueshu/zjus-b/Y2006/V7/I5/404

[1] Motahareh Waezi-Zadeh, Ahmad Ghazanfari, Shahin Noorbakhsh. Finite element analysis and modeling of water absorption by date pits during a soaking process[J]. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2010, 11(7): 482-488.
[2] Peng Zan, Bang-hua Yang, Yong Shao, Guo-zheng Yan, Hua Liu. Electromagnetic effects on the biological tissue surrounding a transcutaneous transformer for an artificial anal sphincter system[J]. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2010, 11(12): 931-936.
[3] Yuan-zhi SHI, Jian-yun RUAN, Li-feng MA, Wen-yan HAN, Fang WANG. Accumulation and distribution of arsenic and cadmium by tea plants[J]. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2008, 9(3): 265-270.
[4] Li Wei, Wu Cheng-zhi, Fang He-liang, Shi Yao, Lei Le-cheng. Study on NO2 absorption by ascorbic acid and various chemicals[J]. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2006, 7(1 ): 7-.
[5] LIU Jun-na, CHEN Zhi-rong, YUAN Shen-feng. Study on the prediction of visible absorption maxima of azobenzene compounds[J]. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2005, 6( 6): 25-.