하천 퇴적물의 입자크기에 따 른 불 소의 흡 착 특
(주)코리아스칼라
- 최초 등록일
- 2023.04.05
- 최종 저작일
- 2016.12
- 7페이지/ 어도비 PDF
- 가격 4,000원
* 본 문서는 배포용으로 복사 및 편집이 불가합니다.
서지정보
ㆍ발행기관 : 한국하천호수학회
ㆍ수록지정보 : 생태와 환경 / 49권 / 4호
ㆍ저자명 : 김채림, 오종민
영어 초록
The purpose of this study is to find out the effect of particle size of sediment on adsorption of fluoride. Particle size is classified as sand, silt and clay. Adsorption equilibrium time, adsorption isotherms and the effect of pH were investigated through batch tests. The pHpzc of sand, silt, clay was respectively 6, 8, 4.5 and AEC (anion exchange capacity) was highest in silt, respectively 0.0095, 0.0224, 0.014 meq g-1. Adsorption of fluoride on the sediment was in equilibrium within 300 minutes from all particle size. The experimental data of isotherms at various pH were well explained by Freundlich equation. As the experimental results of the effect of pH, the adsorption efficiency of sand and silt were reduced after the pHpzc. However, the adsorption efficiency of clay was maintained after the pHpzc, and decreased rapidly higher than pH 12.
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