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A Fundamental Study on the Application of Cast for Removal of VOCs Produced in the Oil-contaminated Soil

유류오염 토양에서 발생되는 VOCs 제거를 위한 분변토의 활용 가능성에 관한 기초연구

  • Son, Hee-Jeong (Terra & Aqua Environmental Co., Ltd.) ;
  • Chun, Mi-Hee (Department of Human Environment, Dong-eui Institute of Technology) ;
  • Kim, Chul (Department of Human Environment, Dong-eui Institute of Technology)
  • Published : 2007.10.30

Abstract

This study was carried out two point view that reuse of sludge and adsorption of benzene, toluene and o-xylene of VOCs in cast, carbonized cast and activated carbon. The cation exchange capacity of cast and carbonized cast were 59.2, 112 meq/100g, respectively. The specific surface were 560, $800m^2/g$, respectively. The average removal rates of benzene by 50g cast of 50% hydrous cast, anhydrous cast, carbonized cast, activated carbon were 15.0, 41.2, 88.2, 99.4% in 60min of retention time. The average removal efficiency of toluene by 50 g cast of 50% hydrous cast, anhydrous cast, carbonized cast, activated carbon were 12.5, 34.2, 88.2, 99.5% in 60 min of retention time. The average removal rates of o-xylene 50 g cast of 50% hydrous cast, anhydrous cast, carbonized cast, activated carbon were 8.8, 28.5, 84.8, 98.1% in 60min of retention time. The adsorption efficiency of test absorbent was in order of Activated Carbon > Carbonized Cast > Cast.

Keywords

oil-contaminated soil;adsorption;cast;VOCs;activated carbon

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