콘텐츠 본문
논문 해외 국제전문학술지(SCI급) Surface solubilization of phenanthrene by surfactant sorbed on soils with different organic matter contents
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2010-05
- 저자명 우승한
- 학술지명 JOURNAL OF HAZARDOUS MATERIALS
- 발행처명 ELSEVIER SCIENCE BV
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 3
논문 초록 (Abstract)
The effect of sorbed surfactant on the distribution of hydrophobic organic compounds (HOCs) during soil washing was investigated usin g a mathematical model. Phenanthrene (PHE) as an HOC and Triton X-100 (TX100) as a nonionic surfactant were used with two soils with lo w (SS) and high (BS) organic matter contents. The available carbon fract ion (f(A, soil) ) after surfactant sorption was determined from surfa ctant coverage by measuring soil surface area using a methylene blue me thod. The sorbed surfactant was greatly effective as a sorbent for PHE, with an effectiveness factor (epsilon(soil)) in the range of 10.9-117. 2 for SS and 39.7-121.3 for BS. Surface molar solubilization ratio (MSR s) and epsilon(soil) decreased with increasing TX100 dose.The MSRs decr ement was lower for BS than for SS probably due to stronger affinity of PHE on organic matter in BS than in SS,which cause lower efficiency of soil washing than estimated by intrinsic sorption of PHE. These results suggest that soil washing in the field using surfactant for soi ls with high organic matter contents may give much lower efficiency tha n expected due to additional adsorption of HOC onto sorbed surfac tant. (C) 2010 Elsevier B.V. All rights reserved.
