A Novel Disinfection Material-Nano Ag Particle Impregnated Media

Wen Han Yang; Tsung Yu Tsai; Chih Chao Wu; Tai Lee Hu; Chi Chuan Kan

doi:10.4028/www.scientific.net/AMR.560-561.732

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 560-561A Novel Disinfection Material-Nano Ag Particle...

A Novel Disinfection Material-Nano Ag Particle Impregnated Media

Abstract:

In this study, the nano-silver impregnated media (NAg-ball) was proposed to inactive E. coli in water. After 24 h of contact with NAg-ball, about 99 % removal of E. coli from the water sample with an initial bacteria loading oItalic textf 10³ - 10⁵ CFU/ml was observed. According 32 day repetitive use, periodical surface cleaning would be suggested to maintain the high inactivation lasting of NAg-ball. The dosing of 1: 20 (Nag-ball: water) was found to be the best and most suitable in a 500 L pilot scale. This result confirmed the existence of synergistic effect lower dose shall be expected to treat the same loading of bacteria for further larger scale. Toxicity Characteristic Leaching Procedure (TCLP) test revealed trace amount of Ag, Cu, Cr and Zn released from NAg-ball into the treated water sample. In conclusion, nano-silver impregnated media has very good inactivation performance on E. coli. This NAg-ball provides a safe, convenient and effective solution in drinking water treatment, especially in the mountain area.

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Periodical:

Advanced Materials Research (Volumes 560-561)

Pages:

732-736

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.560-561.732

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Online since:

August 2012

Authors:

Wen Han Yang, Tsung Yu Tsai, Chih Chao Wu, Tai Lee Hu, Chi Chuan Kan

Keywords:

Disinfection, E. coli, Inactivation, Nano-Silver

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References

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