논문 해외 국제전문학술지(SCI급) Lumped approach for sorption of organic contaminant mixtures to simulated aquifer sorbents
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2007-10
- 저자명 Jin Chul Joo
- 발행처명 Colorado State University ProQuest Dissertations Publishing
- 발행국가 해외
- 논문언어 외국어
- 연구분야 공학 > 환경공학
홈페이지논문 초록 (Abstract)
In this study, the feasibility and accuracy of using a lumped approach to describe the sorption of 12 neutral organic compounds (NOCs), 6 polar NOCs (acetone, 2- butanone, 2-hexanone, phenol, /?-crcsol, and 2,4-dimethyl phenol) and 6 nonpolar NOCs (1,2,4-trichlorobenzene, 1,4-dichlorobenzene, chlorobenzene, m-xylene, toluene, benzene), in mixtures to simulated aquifer sorbents with fractions of organic carbon (foc) ranging from 0.005 to 0.221 % were evaluated. The lumped approach consists of grouping one or more components in mixtures of NOCs into a fewer number of pseudocompounds that exhibit similar behavior with respect to a process being considered (e.g., sorption). Batch equilibrium sorption tests (BESTs) were performed to measure the sorption behaviors of the 12 NOCs existing as both single NOCs and in mixtures of NOCs in aqueous solution with each sorbent. The results of the BESTs were analyzed using the Freundlich sorption equation, and the lumped approach was evaluated on the basis of experimentally derived lumping criteria (i.e., Freundlich sorption parameters). Also, the use of the ideal adsorbed solution theory (1AST) with the determined pseudocompounds for predicting the sorption of the 12 NOCs within complex mixtures to simulated aquifer sorbents was investigated