Remediation of Dioxins-Contaminated Soil by Successive Ethanol Washing–Photodegradation

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Masaaki Hosomi²  Byung-Dae Lee¹  Satoshi Nakai²  Shoko Okutsu² 

[1] Division of Health, Uiduk University;Department of Chemical Engineering, Tokyo University of Agriculture and Technology

关键词: Dioxins-Contaminated Soil;    Ethanol Washing;    UV Irradiation;    Soil Remediation;   

DOI  :  10.1252/jcej.38.360

来源: Maruzen Company Ltd

【 摘 要 】

References(16)Cited-By(2)We investigated a combined process for remediating dioxins-contaminated soil (i.e., initial concentration ≈ 9100 pg-TEQ/g) involving solvent washing followed by UV irradiation. More than 95.1% of TEQ was removed from the soil under a pseudo-first order by performing ethanol washing seven times, and the resulting TEQ removal efficiency of ethanol washing solution (i.e., initial concentration≈ 2468.5 pg-TEQ/mL) after 16 h of UV irradiation was 99.8%. In addition, most of the PCDDs/DFs peaks disappeared based on HRGC-MS chromatography. These results indicate that the proposed ethanol washing-UV irradiation treatment can be effectively applied in remediating dioxins-contaminated soil.

【 授权许可】

Unknown