東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

Laboratory Evaluation of Low-Tempera...

Reising, Lauren Jane.

FindBook

Google Book

Amazon

博客來

Laboratory Evaluation of Low-Temperature Thermally Enhanced Soil Vapor Extraction.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Laboratory Evaluation of Low-Temperature Thermally Enhanced Soil Vapor Extraction./
作者:	Reising, Lauren Jane.
面頁冊數:	107 p.
附註:	Source: Masters Abstracts International, Volume: 55-02.
Contained By:	Masters Abstracts International55-02(E).
標題:	Environmental engineering. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1600550
ISBN:	9781339094908

Laboratory Evaluation of Low-Temperature Thermally Enhanced Soil Vapor Extraction.
Reising, Lauren Jane.

Laboratory Evaluation of Low-Temperature Thermally Enhanced Soil Vapor Extraction. - 107 p.

Source: Masters Abstracts International, Volume: 55-02.

Thesis (M.S.)--University of Colorado at Boulder, 2015.

The goal of this study is to understand the conditions in which heat collected from soil borehole thermal energy storage (SBTES) systems can be used for thermally enhanced vapor extraction. SBTES systems consist of an array of closely-spaced vertical geothermal boreholes, and are used for storing heat collected from solar thermal panels. The temperature of the soil in these systems is expected to reach values ranging from 40 to 60 ?C. Although thermal enhancement of soil vapor extraction (SVE) has been investigated in several studies, they typically involved temperatures in the range of 100-300 ?C and the role of relatively low temperatures such as those in SBTES systems has not been thoroughly evaluated. Although the temperature is not significant, the heat is from a renewable source and can be applied for a long duration for low cost. The experimental approach used in this study involves column tests in which a vacuum is used to draw air through an unsaturated soil column contaminated with diesel fuel at residual saturation. Three tests were performed in which the soil column was heated to different temperatures and a vacuum was imposed to result in a constant upward air flow rate through the soil column. The data collected, including the air flow rates, the soil temperature and dielectric permittivity, and the total petroleum hydrocarbon in the gas phase at different locations, indicates that moderate increases in temperatures lead to small increases in the removal of diesel from the unsaturated soil layer. However, the increases observed in the amount removed did not lead to a significant change in the percent of initial diesel removed. These results confirm that moderate increase in temperature are not sufficient to significantly improve diesel remediation from a low-permeability silt. However it does demonstrate a potential for integrating SBTES systems with subsurface remediation strategies for more volatile contaminants to provide a sustainable approach for the reuse of contaminated sites.

ISBN: 9781339094908Subjects--Topical Terms:

548583
Environmental engineering.

Laboratory Evaluation of Low-Temperature Thermally Enhanced Soil Vapor Extraction.
LDR:02895nmm a2200277 4500 001 2078414
005 20161122122600.5
008 170521s2015 ||||||||||||||||| ||eng d
020 $a 9781339094908
035 $a (MiAaPQ)AAI1600550
035 $a AAI1600550
040 $a MiAaPQ $c MiAaPQ
100 1 $a Reising, Lauren Jane. $3 3194000
245 1 0 $a Laboratory Evaluation of Low-Temperature Thermally Enhanced Soil Vapor Extraction.
300 $a 107 p.
500 $a Source: Masters Abstracts International, Volume: 55-02.
500 $a Adviser: John S. McCartney.
502 $a Thesis (M.S.)--University of Colorado at Boulder, 2015.
520 $a The goal of this study is to understand the conditions in which heat collected from soil borehole thermal energy storage (SBTES) systems can be used for thermally enhanced vapor extraction. SBTES systems consist of an array of closely-spaced vertical geothermal boreholes, and are used for storing heat collected from solar thermal panels. The temperature of the soil in these systems is expected to reach values ranging from 40 to 60 ?C. Although thermal enhancement of soil vapor extraction (SVE) has been investigated in several studies, they typically involved temperatures in the range of 100-300 ?C and the role of relatively low temperatures such as those in SBTES systems has not been thoroughly evaluated. Although the temperature is not significant, the heat is from a renewable source and can be applied for a long duration for low cost. The experimental approach used in this study involves column tests in which a vacuum is used to draw air through an unsaturated soil column contaminated with diesel fuel at residual saturation. Three tests were performed in which the soil column was heated to different temperatures and a vacuum was imposed to result in a constant upward air flow rate through the soil column. The data collected, including the air flow rates, the soil temperature and dielectric permittivity, and the total petroleum hydrocarbon in the gas phase at different locations, indicates that moderate increases in temperatures lead to small increases in the removal of diesel from the unsaturated soil layer. However, the increases observed in the amount removed did not lead to a significant change in the percent of initial diesel removed. These results confirm that moderate increase in temperature are not sufficient to significantly improve diesel remediation from a low-permeability silt. However it does demonstrate a potential for integrating SBTES systems with subsurface remediation strategies for more volatile contaminants to provide a sustainable approach for the reuse of contaminated sites.
590 $a School code: 0051.
650 4 $a Environmental engineering. $3 548583
650 4 $a Geotechnology. $3 1018558
690 $a 0775
690 $a 0428
710 2 $a University of Colorado at Boulder. $b Civil Engineering. $3 1021890
773 0 $t Masters Abstracts International $g 55-02(E).
790 $a 0051
791 $a M.S.
792 $a 2015
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1600550