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MASS TRANSFER MODEL OF SOIL VAPOR EXTRACTION UNDER THERMAL TREATMENT FOR REMOVING A VOLATILE CONTAMINANT
Li, Peng1,2; Liao, Xiaoyong2; Yan, Xiulan2; Ma, Dong2; Cui, Xiaoyong1; Tao, Huan2
2018
Source PublicationENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL
ISSN1582-9596
Volume17Issue:1Pages:107-114
Corresponding AuthorLiao, Xiaoyong(liaoxy@igsnrr.ac.cn) ; Cui, Xiaoyong(cuixy@ucas.ac.cn)
AbstractA series of column experiments were conducted to study volatile contaminant (benzene) removal and process principles using soil vapor extraction (SVE) under different thermal conditions. Compared with the normal SVE method, two thermal methods-steam injection and electrical resistance heating effectively increased the benzene vapor diffusion and removal rates. The removal efficiency of benzene with the electrical resistance heating method was 96.5%, which was significantly higher than that with the steam injection method (90.5%, p=0.002) or with the normal SVE method (85.2%, p=0.001). In addition, SVE with electrical resistance heating showed a more stable heating effect than SVE with steam injection in homogeneous sandy soil. Based on existing equilibrium SVE models, we established a one-dimensional non-equilibrium mass transfer model for estimating volatile contaminant removal under thermal enhancement. The improved model can accurately reflect benzene content variations using SVE with electrical resistance heating and provides a theoretical basis for preliminary site remediation assessments using SVE under continuous thermal treatment.
Keywordmass transfer model soil vapor extraction thermal treatment volatile contaminant
WOS KeywordREMEDIATION ; HYDROCARBONS ; ENHANCEMENT ; SYSTEMS
Indexed BySCI
Language英语
Funding ProjectNational High-Tech Research Development Program of China (863)[2009AA063102] ; National High-Tech Research Development Program of China (863)[2012AA06A201] ; National Key Technology RD Program[2012BAC10B00]
Funding OrganizationNational High-Tech Research Development Program of China (863) ; National Key Technology RD Program
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000426072600012
PublisherGH ASACHI TECHNICAL UNIV IASI
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Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/57011
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLiao, Xiaoyong; Cui, Xiaoyong
Affiliation1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Li, Peng,Liao, Xiaoyong,Yan, Xiulan,et al. MASS TRANSFER MODEL OF SOIL VAPOR EXTRACTION UNDER THERMAL TREATMENT FOR REMOVING A VOLATILE CONTAMINANT[J]. ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL,2018,17(1):107-114.
APA Li, Peng,Liao, Xiaoyong,Yan, Xiulan,Ma, Dong,Cui, Xiaoyong,&Tao, Huan.(2018).MASS TRANSFER MODEL OF SOIL VAPOR EXTRACTION UNDER THERMAL TREATMENT FOR REMOVING A VOLATILE CONTAMINANT.ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL,17(1),107-114.
MLA Li, Peng,et al."MASS TRANSFER MODEL OF SOIL VAPOR EXTRACTION UNDER THERMAL TREATMENT FOR REMOVING A VOLATILE CONTAMINANT".ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL 17.1(2018):107-114.
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