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Trichloroethylene (TCE) Adsorption Using Sustainable Organic Mulch

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2010, Master of Science, University of Toledo, Civil Engineering.
Soluble substrates (electron donors) have been commonly injected into chlorinated solvent contaminated plume to stimulate reductive dechlorination. Recently, different types of organic mulches possessing economic advantages and sustainable benefits have received much attention as new supporting materials that can provide long term sources as electron donors for chlorinated solvent bioremediation in engineered biowall systems. However, sorption capacities of organic mulches for chlorinated solvents have not yet been studied. In this study, the physiochemical properties of organic mulches (pine, hardwood and cypress mulches) were measured and their adsorption capacity as a potential media was elucidated. Single, binary and quaternary isotherm tests were conducted with trichloroethylene (TCE), tetrachloroethylene (PCE), trans-dichloroethylene (trans-DCE) and cis-dichloroethylene (cis-DCE). Among the three tested mulches, pine mulch showed the highest sorption capacity for the majority of the tested chemicals in single isotherm test. In binary or quaternary isotherm tests, competition among chemicals appears to diminish the differences in Qe for tested mulches. However, pine mulch also showed higher adsorption capacity for most chemicals when compared to hardwood and cypress mulches in the two isotherm tests. Based upon physicochemical properties of the three mulches, higher sorption capacity of pine mulch over hardwood and cypress mulches appears to be attributed to a higher organic carbon content and the lower polarity.
Youngwoo Seo, Dr. (Committee Chair)
Ashok Kumar, Dr. (Committee Member)
Defne Apul, Dr. (Committee Member)
71 p.

Recommended Citations

Citations

  • Wei, Z. (2010). Trichloroethylene (TCE) Adsorption Using Sustainable Organic Mulch [Master's thesis, University of Toledo]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1279301053

    APA Style (7th edition)

  • Wei, Zongsu. Trichloroethylene (TCE) Adsorption Using Sustainable Organic Mulch. 2010. University of Toledo, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=toledo1279301053.

    MLA Style (8th edition)

  • Wei, Zongsu. "Trichloroethylene (TCE) Adsorption Using Sustainable Organic Mulch." Master's thesis, University of Toledo, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1279301053

    Chicago Manual of Style (17th edition)