여재 종류에 따른 역삼투법 해수담수화 시설 전처리 여과공정의 성능비교

Abstract

This study compares the performance of the filters with various media in pretreatment of seawater desalination by reverse osmosis. For this purpose, Masan bay seawater is used as raw water. The filter performance is evaluated by the filtrate quality and the head loss development. Five media is selected in this study: anthracite, Filtralite®, sand, Pumice, AFM®. These media are used in combination for dual media filter and alone for mono media filter. The comparison results show that NC0.8-1.6 is the best Filtralite®. The dual media filter of NC0.8-1.6 and sand outperformed other filters in particle removal. The dual media filter of anthracite and sand showed good performance in organic removal. The mono media filter of Pumice produced the similar filtrate quality as the mono media filter of sand although the effective size of Pumice is considerably greater than that of sand. Due to big size, head loss development is maintained slow in the mono fillrafon of Pumice