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KMID : 1101420160480030230
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Korean Journal of Clinical Laboratory Science
2016 Volume.48 No. 3 p.230 ~ p.236
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Evaluation of Microbes through Microfiltration within the Water Treatment Processes
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Shim Moon-Jung
Lim Jae-Won
Kim Tae-Ue
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Abstract
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Economic growth has increased the living standards around the world. Water pollution, in particular, is a public relations issue because it poses a direct threat to everyone’s lives. As of recently, the production of taste and odor (T&O) compounds has been a common problem in the water industry. The adsorption process using granular activated carbon (GAC) has been the most widely used process. The objectives of this study were to evaluate the microorganisms before and after the backwashing of GAC and to identify the species of the microorganisms found. Five dominants microorganisms were confirmed after the microfiltration process from backwashing of GAC, and the dominant bacterial species were found to be β-proteobacterium species, Porphyrobacter donghaensis, Polaromonas rhizophaerae, Hydrogenophaga species, and Pseudonocardia species. However, when UV treatment after microfiltration was performed, Hydrogenophaga species and Psedonocardia species were eliminated. Herein, I conclude that the UV treatment post microfiltration process is more efficient than microfiltration process alone. The findings of this study may provide useful information regarding the management of microfiltration process.
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KEYWORD
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Microfiltration, Granular activated carbon, Drinking water, Microorganism, 16S ribosomal RNA gene
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