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A Preliminary Investigation of Treating Metal Pollutants in Water by Slow-Release Hydrogen Peroxide

Shaw, Caitlin H.
http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1493820099202382

Abstract Details

2017, Master of Science (MS), Ohio University, Geological Sciences (Arts and Sciences).
Urban runoff can come into contact with a range of pollutants. Metal pollutants can pose an especially significant threat to water quality. This study focused on metals: Cd, Zn, Cu, Pb, Fe and Mn. These metals were chosen after previous studies reported finding them in first flush stormwater collected throughout the Midwestern US. This study tested the effectiveness of SR-HP forms to remove metals from DI water with standard solutions of metals added. Two sizes of SR-HP forms were constructed from sodium percarbonate (Na2CO3·1.5H2O2) salts and resin and release rates were quantified. The smaller size released hydrogen peroxide (H2O2) at a steady average rate of 0.063 mg/min after 6.2 hours. One proof-of-concept treatment test was conducted utilizing smaller SR-HP forms and DI water containing dissolved metals. During the treatment test, SR-HP released H2O2 and alkalinity at the rates ranging from 1.35 mM to 0.135 mM and 0.90 mM to 0.09 mM, respectively. The pH of metal loaded deionized water was raised from 1.74 to 1.87 indicating slight neutralization by added carbonate. This resulted in removal efficacies ranging from 4.17% - 0.65%, 4.52% - +0.76%, 8.59% - 2.92%, 7.44% – 0.29%, 0.52% - +2.24% for Cd, Cu, Fe, Pb and Zn respectively. No consistent treatment was evident for all metals except for iron, which saw a modest removal of 8.6%. This 8.6 removal was most likely due to Fe2+ being used during Fenton’s reaction. This result indicates effective removal by SR-HP could be feasible, especially if the pH is more alkaline. Further investigation of SR-HP form performance in a wide range of pHs could be possible.
Eung Seok Lee (Advisor)
Greg Nadon (Committee Member)
79 p.
Analytical Chemistry; Aquaculture; Aquatic Sciences; Area Planning and Development; Chemical Engineering; Chemistry; Environmental Geology; Environmental Science; Environmental Studies; Experiments; Geology; Hydrologic Sciences; Hydrology; Organic Chemistry
Slow release; oxidation; stormwater; urban runoff; fentons; stormwater treatment; iron; manganese; zinc; cadmium; copper; lead; metal pollutants; treatment by oxidation; pH; Hydrogen peroxide

Recommended Citations

Citations

  • Shaw, C. H. (2017). A Preliminary Investigation of Treating Metal Pollutants in Water by Slow-Release Hydrogen Peroxide [Master's thesis, Ohio University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1493820099202382

    APA Style (7th edition)

  • Shaw, Caitlin. A Preliminary Investigation of Treating Metal Pollutants in Water by Slow-Release Hydrogen Peroxide. 2017. Ohio University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1493820099202382.

    MLA Style (8th edition)

  • Shaw, Caitlin. "A Preliminary Investigation of Treating Metal Pollutants in Water by Slow-Release Hydrogen Peroxide." Master's thesis, Ohio University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1493820099202382

    Chicago Manual of Style (17th edition)

ohiou1493820099202382
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This open access ETD is published by Ohio University and OhioLINK.