Anti-Bacterial Properties of Water Transport Containers Made from Encapsulated Silver Nanoparticles

Document Type : Research Paper

Authors

1 M.Sc. Student of Chemical Eng., Amir kabir University of Tech., Tehran (Corresponding Author) (+98 21) 44033673 m.nemati21@gmail.com

2 Assist. Prof. of Environmental Eng., Amir Kabir University of Tech., Tehran

3 Prof. of Polymer Eng., Amir Kabir University of Tech., Tehran

4 M.Sc. of Applied Microbiology, Biotechnology Institute, Jahad Daneshgahi, Tehran

5 Director of Research, Pasargad Nano Chemistry Lotus Company

Abstract

Considering the surface water resources as one of the main water supplies in many regions of Iran. The application of chlorination for disinfecting drinking water has increased the rate of Disinfection By- Products (DBPs) formation.The required cost for DBPS removal motivates researchers to find a solution related to substitute the chlorination process and need for residual  chlorine. Using the current Nano particles such as silver, copper and zinc in powder form is one of the best alternatives in injecting  polymer and  producing the pipe, but several problems such as lack of uniform distribution of Nano particles in polymer matrices, distribution of particles in the air (TLV), release of Nano particles into the system and accumulate in the body, high consumption due to reduction of filler properties and increased cost price of products led to  unpopularity of this technology. Using capsulated material because of zero release and high rates and low prices can be a good choice and useful substituent. In this study various concentrations of Al2 O3 / SiO2 micro-particles,which the silver Nano particles are on these micro-particles have been used to produce sheets, and microbial tests have been done on samples of composites prepared by Iran national standard method of 10.900. And ultimately based on an amount of bacteria and retention time minimum particulate required to slow the growth of bacteria was determined as 4 percent by weight. 

Keywords

References

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Journal of Water and Wastewater; Ab va Fazilab ( in persian )
Volume 24, Issue 1 - Serial Number 1
Serial number:85
March 2013
Pages 19-25

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