Phytoremediation of nitroglycerin in smokeless powders

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dc.contributor.advisor Pichtel, John, 1957- Asbaghi, Navid 2012-07-31T18:04:08Z 2012-07-31T18:04:08Z 2012-07-21 2012-07-21
dc.description.abstract This study evaluated the feasibility of rhizosphere-enhanced phytoremediation in the removal of nitroglycerin (NG), as applied in commercial smokeless powder from soil. Double base smokeless powder was applied to soil mesocosms at rates of 0, 1.0, 5.0 and 10% (w/w). Nitroglycerin-contaminated mesocosms were seeded with oats (Avena sativa) or planted with live sedge plants (Carex vulpinoidea). In addition, composted biosolids were used as a soil treatment. Mesocosms were sampled at 7, 14, 30, and 60 days after initial planting. Determination of residual NG in the samples was performed using gas chromatography with an electron capture detector. Additionally, the populations of soil-borne bacteria were determined for each treatment. Microbial activity in the plant rhizosphere was a major contributor to NG decomposition in the soil. Only modest quantities of NG removal could be accounted for by abiotic processes such as sorption. Nitroglycerin decomposition by photolytic processes was observed; however, this effect is considered to be a minor contribution to NG removal from soil. Soil bacterial numbers remained relatively constant regardless of the rate of SP application (1% and 10%). The data also indicate that addition of CB amendment to soil imparted a positive effect in NG decomposition and/or removal from soil. Additional study is needed to determine which of the plants studied was/were superior in NG removal from soil. en_US
dc.description.sponsorship Department of Natural Resources and Environmental Management
dc.subject.lcsh Phytoremediation
dc.subject.lcsh Nitroglycerin -- Environmental aspects
dc.subject.lcsh Gunpowder, Smokeless -- Environmental aspects
dc.subject.lcsh Explosives -- Biodegradation
dc.title Phytoremediation of nitroglycerin in smokeless powders en_US Thesis (D. Ed.) en_US

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  • Doctoral Dissertations [3121]
    Doctoral dissertations submitted to the Graduate School by Ball State University doctoral candidates in partial fulfillment of degree requirements.

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