고정화제와 고정화된 해조류에 의한 납의 제거 특성

• 영문명: Removal Characteristics of Lead by Immobilizing Agents and Immobilized Seaweed
• 발행기관: 한국환경보건학회
• 저자명: 이학성 서정호 서근학
• 간행물 정보: 『한국환경보건학회지』제27권 제1호, 83~87쪽, 전체 5쪽
• 주제분류: 공학 > 환경공학
• 파일형태: PDF
• 발행일자: 2001.03.30

영문 초록

In this study, the characteristics of lead removal by PVA and alginate bead which used widely as immobilizing agents were investigated, and the difference of removal amounts between pure PVA/alginate bead and Sargassum thunbergii immobilized bead was studied. All PVA beads, pure and S. thunbergii immobilized, reached an equilibrium state in about 1 hour, and S. thunbergii immobilized bead adsorbed more lead than pure one. But in the case of alginate beads, they needed much time, about 5 hours, to reach an equilibrium state, and adsorbed lead four times higher than PVA beads. Therefore, it was considered that alginate beads had more mass transfer resistance and function groups which adsorb lead such as hydroxyl, carboxyl and etc. than PVA bead. To examine the continuous usage of alginate beads, the process of adsorption/desorption of lead was conducted repeatedly. As the process proceeded, the amounts of lead adsorption decrease, so it was indicated that the non-desorbed lead from alginate bead at first adsorption/desorption process remained constantly.

키워드

Biosorption Sargassum thunbergii Alginate PVA Lead