An Experimental Study of the Silver-Loading Diatomite on the Water Disinfection

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Abstract:

The silver-loading diatomite prepared by the vacuum heating decomposition method was applied to the water disinfection. The inactivation effects of the silver-loading diatomite on the Escherichia coli (E. coli) in water were investigated. The effects of temperature and pH value on the bactericidal activity of the silver-loading diatomite against E. coli were investigated. The concentration of Ag+ in water samples was tested for safety. The results show that the silver-loading diatomite with the silver content of 1.46% can kill E. coli in experiment water in 30 minutes. The higher the temperature and the greater the PH value of the water samples, the stronger the antibacterial properties of the silver-loading diatomite. The concentration of Ag+ is less than 50ug/L in the disinfected and treated water samples. The silver-loading diatomite is a safe, effective antibacterial material.

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Advanced Materials Research (Volumes 955-959)

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166-170

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June 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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[1] X.H. Qin, L. Peng, X.H. Zhang, et al. Investigation of Rural Drinking Water safety in Chongqing. Journal of Southwest University (Natural Science Edition), 2013, 35(11): 157-163.

Google Scholar

[2] F. C Yang, K.H. Wu, M.J. Liu, et al. Evaluation of the antibacterial efficacy of bamboo charcoal/ silver biological protective material. Materials Chemistry and Physics, 2009, 113 (1): 474–479.

DOI: 10.1016/j.matchemphys.2008.07.126

Google Scholar

[3] R. Chen, K.F. Rong, Z. Lu, et al. Research progress on the synthesis and biological activities of silver nanoparticles. Journal of Wuhan Institute of Technology, 2010, 32(11): 1-7.

Google Scholar

[4] W.R. Li, X.B. Xie, Q.S. Shi, et al. Antibacterial activity and mechanism of silver nanoparticles on Escherichia coli. Applied Microbiology and Biotechnology, 2010, 85(4): 1115-1122.

DOI: 10.1007/s00253-009-2159-5

Google Scholar

[5] J. Liu, D.F. Zhao. The present situation and development of diatomite. Environmental Science and Management, 2009, 34(5): 104-106.

Google Scholar

[6] T. Hu, Y.M. Ma, C. Wang. Research progress of the application of diatomite.  China Non-metallic Mining Industry Herald, 2009, 73(1): 16-18.

Google Scholar

[7] F.E. Hu, J.S. Chen, F. Wang, et al. Preparation of silver-supporting diatomite and its antibacterial property. New Chemical Materials, 2011, 39(8): 57-59.

Google Scholar

[8] C.Y. Huang, Y.J. Yao, R.Y. Zhang, et al. Chinese diatomite and applications. Beijing: Science and Technology Press, 1993, 146-149.

Google Scholar

[9] Technical Standard For disinfection 2002. Ministry of Health of the People's Republic of China.

Google Scholar

[10] M.Z. Kassaee ,A. Akhavan a, N. Sheikh , R. Beteshobabrud. γ-Ray synthesis of starch- stabilized silver nanoparticles with antibacterial activities. Radiation Physics and Chemistry, 2008, 77 (9): 1074-1078.

DOI: 10.1016/j.radphyschem.2008.06.010

Google Scholar

[11] Drinking water health standards (2001 Revision). Ministry of Health of the People's Republic of China.

Google Scholar