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Numerical Investigation of NAPL Depl...

Cheng, Shih-Yang,

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Numerical Investigation of NAPL Depletion and Back Diffusion Mitigation Through In Situ Persulfate Oxidation /

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Numerical Investigation of NAPL Depletion and Back Diffusion Mitigation Through In Situ Persulfate Oxidation // Shih-Yang Cheng.
作者:	Cheng, Shih-Yang,
面頁冊數:	1 electronic resource (76 pages)
附註:	Source: Masters Abstracts International, Volume: 86-05.
Contained By:	Masters Abstracts International86-05.
標題:	Environmental engineering. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=31562721
ISBN:	9798342756457

Numerical Investigation of NAPL Depletion and Back Diffusion Mitigation Through In Situ Persulfate Oxidation /
Cheng, Shih-Yang,

Numerical Investigation of NAPL Depletion and Back Diffusion Mitigation Through In Situ Persulfate Oxidation /Shih-Yang Cheng. - 1 electronic resource (76 pages)

Source: Masters Abstracts International, Volume: 86-05.

Persulfate, noted for its high oxidative potential and prolonged persistence, is increasingly being utilized for groundwater remediation purposes. A reactive transport model was utilized to evaluate the effectiveness of persulfate oxidation in non-aqueous phase liquid (NAPL) depletion and back diffusion mitigation of trichloroethylene (TCE). The model, incorporating NAPL dissolution and persulfate chemistry, was validated against previously published experimental data and subsequently applied to two illustrative cases, which were used to examine the influence of various design parameters and soil oxidant demand (SOD) on contaminant removal. Findings indicate that high oxidant concentration and slow groundwater velocity are preferred for both NAPL depletion and back diffusion mitigation. High temperature can benefit NAPL depletion while low temperature is suitable for back diffusion mitigation. Understanding site-specific SOD values is critical for evaluating ISCO performance. This study highlights the importance of optimizing design parameters and considering site-specific conditions to improve the effectiveness of TCE remediation efforts.

English

ISBN: 9798342756457Subjects--Topical Terms:

548583
Environmental engineering.
Subjects--Index Terms:

Back diffusion

Numerical Investigation of NAPL Depletion and Back Diffusion Mitigation Through In Situ Persulfate Oxidation /
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300 $a 1 electronic resource (76 pages)
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500 $a Source: Masters Abstracts International, Volume: 86-05.
500 $a Advisors: Sleep, Brent.
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520 $a Persulfate, noted for its high oxidative potential and prolonged persistence, is increasingly being utilized for groundwater remediation purposes. A reactive transport model was utilized to evaluate the effectiveness of persulfate oxidation in non-aqueous phase liquid (NAPL) depletion and back diffusion mitigation of trichloroethylene (TCE). The model, incorporating NAPL dissolution and persulfate chemistry, was validated against previously published experimental data and subsequently applied to two illustrative cases, which were used to examine the influence of various design parameters and soil oxidant demand (SOD) on contaminant removal. Findings indicate that high oxidant concentration and slow groundwater velocity are preferred for both NAPL depletion and back diffusion mitigation. High temperature can benefit NAPL depletion while low temperature is suitable for back diffusion mitigation. Understanding site-specific SOD values is critical for evaluating ISCO performance. This study highlights the importance of optimizing design parameters and considering site-specific conditions to improve the effectiveness of TCE remediation efforts.
546 $a English
590 $a School code: 0779
650 4 $a Environmental engineering. $3 548583
650 4 $a Mineralogy. $3 516743
653 $a Back diffusion
653 $a ISCO performance
653 $a NAPL dissolution
653 $a Numerical modeling
653 $a Persulfate oxidation
653 $a Trichloroethylene
690 $a 0775
690 $a 0543
690 $a 0411
710 2 $a University of Toronto (Canada). $b Civil Engineering. $e degree granting institution. $3 3816485
720 1 $a Sleep, Brent $e degree supervisor.
773 0 $t Masters Abstracts International $g 86-05.
790 $a 0779
791 $a M.A.S.
792 $a 2024
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=31562721