Testing antibacterial effect of silver nanoparticles on sulfate-reducing bacteria
Abstract
In the oil and gas industry, sulfate-reducing bacteria can generate hydrogen sulfide (H2S) in their growth, thus decreasing the commercial value of crude oil, causing metal equipment corrosion and seriously affecting the economic efficiency and the health of workers on drilling rigs. Because of their strong antibacterial and environmental friendly characteristics, silver nanoparticles have been studied and applied in various sectors world-wide. This paper presents some initial research results on the synthesis of silver nanoparticles (NPs) with the mean silver nanoparticle size of 18 - 21nm being eff ective to reduce bacterial numbers from 106tb/ml to < 10tb/ml (99%). This activity was tested on sulfate-reducing bacteria EPC-KK2 - Desulfomicrobium baculatum which was isolated from crude oil samples taken from Bach Ho field.
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