Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
Contaminant Mass Transfer from NAPLs to Water Studied in a Continuously Stirred Flow-Through Reactor | |
Liu, Lihua1; Maier, Uli2; Grathwohl, Peter2; Haderlein, Stefan B.3 | |
2012-08-01 | |
发表期刊 | JOURNAL OF ENVIRONMENTAL ENGINEERING-ASCE |
卷号 | 138期号:8页码:826-832 |
摘要 | The release of nonaqueous-phase liquids (NAPLs) from porous media to groundwater is a widespread environmental problem. The mass transfer of individual NAPL components controls both the extent of groundwater contamination and the persistence of the residual NAPL phase. In order to quantify this key process, small-scale experimental studies on NAPL-water mass transfer were performed in a dynamic system mimicking environmental conditions with "clean" water continuously flowing through the NAPL pool. To describe this process, a modified simulation method was developed and validated by the experimental data. The experimental system consisted of a custom-designed flow cell (with NAPL and water) connected to the peripheral equipment (e. g., pump, water source). This continuously stirred flow-through reactor was used to perform mass transfer experiments with simple and complex model NAPL-water systems. To simulate the experimental data (concentration versus time profiles of individual NAPL compounds), an analytical solution of a standard mass transfer model was adapted in simple model NAPL systems, and a numerical method was employed for complex multicomponent model NAPL-water systems containing phenols, heteroaromatic compounds, and polycyclic aromatic hydrocarbons (PAHs). The numerical model was developed based on a mass balance equation and a general form of Raoult's law. The simulated concentration profiles of the various solutes matched well the experimental data only if the nonideal behavior of the more polar solutes was accounted for. Using the developed numerical mode simulated mass transfer coefficients for individual NAPL components compared well with previously published values if available. DOI:10.1061/(ASCE)EE.1943-7870.0000528. (C) 2012 American Society of Civil Engineers. |
文章类型 | Article |
关键词 | Mass Transfer Coefficients Napl-water Interphase Fuel Derived Contaminants Groundwater Contamination |
WOS标题词 | Science & Technology ; Technology ; Life Sciences & Biomedicine |
DOI | 10.1061/(ASCE)EE.1943-7870.0000528 |
研究领域[WOS] | Engineering ; Environmental Sciences & Ecology |
关键词[WOS] | NONAQUEOUS-PHASE LIQUID ; SATURATED POROUS-MEDIA ; POLYNUCLEAR AROMATIC-HYDROCARBONS ; MIXED BATCH SYSTEMS ; COAL-TAR POOL ; INTERFACIAL FILMS ; NONEQUILIBRIUM DISSOLUTION ; EXPERIMENTAL AQUIFER ; SUBSURFACE SYSTEMS ; SLURRY SYSTEMS |
收录类别 | SCI |
语种 | 英语 |
WOS类目 | Engineering, Environmental ; Engineering, Civil ; Environmental Sciences |
WOS记录号 | WOS:000312101700002 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.giec.ac.cn/handle/344007/10166 |
专题 | 中国科学院广州能源研究所 |
作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 2.Univ Tubingen, Dept Geosci, D-72076 Tubingen, Germany 3.Univ Tubingen, Ctr Appl Geosci, D-72076 Tubingen, Germany |
推荐引用方式 GB/T 7714 | Liu, Lihua,Maier, Uli,Grathwohl, Peter,et al. Contaminant Mass Transfer from NAPLs to Water Studied in a Continuously Stirred Flow-Through Reactor[J]. JOURNAL OF ENVIRONMENTAL ENGINEERING-ASCE,2012,138(8):826-832. |
APA | Liu, Lihua,Maier, Uli,Grathwohl, Peter,&Haderlein, Stefan B..(2012).Contaminant Mass Transfer from NAPLs to Water Studied in a Continuously Stirred Flow-Through Reactor.JOURNAL OF ENVIRONMENTAL ENGINEERING-ASCE,138(8),826-832. |
MLA | Liu, Lihua,et al."Contaminant Mass Transfer from NAPLs to Water Studied in a Continuously Stirred Flow-Through Reactor".JOURNAL OF ENVIRONMENTAL ENGINEERING-ASCE 138.8(2012):826-832. |
条目包含的文件 | 下载所有文件 | |||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Contaminant Mass Tra(420KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论