| 초록 |
The biofouling in a water purification system has been a major issue for the application of filtration. In general, it is caused by the attachment and growth of microorganisms on a filter surface. In this sense, we investigated the suppression of biofouling on the filter by making use of an underwater capillary discharge. It was identified from our previous experiments that the reactive radicals, UV light, and shock wave generated from the underwater capillary discharge played a pivotal role in the killing of microorganisms. In this study, we used a polypropylene (PP) with immobilized sulfone functional group as a filter and set up the underwater discharge before the filter. We investigated the anti-biofouling effects by comparing the water flux of membrane with and without the capillary discharge. For instance, the water flux of membrane system with the capillary discharge was enhanced as much as 1.6 times, compared with that without the discharge. Eventually, it is expected that the discharge in water can suppress the biofouling on the filter surface by inactivating microorganisms. |
