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Environmental and Health Risk Assess...

Taylor, Tarell Cabre.

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Environmental and Health Risk Assessment of Controlled Release Oxidation Prototypes Designed To Remediate Wastewater.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Environmental and Health Risk Assessment of Controlled Release Oxidation Prototypes Designed To Remediate Wastewater./
作者:	Taylor, Tarell Cabre.
面頁冊數:	132 p.
附註:	Source: Masters Abstracts International, Volume: 51-05.
Contained By:	Masters Abstracts International51-05(E).
標題:	Health Sciences, Toxicology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1534808
ISBN:	9781267962652

Environmental and Health Risk Assessment of Controlled Release Oxidation Prototypes Designed To Remediate Wastewater.
Taylor, Tarell Cabre.

Environmental and Health Risk Assessment of Controlled Release Oxidation Prototypes Designed To Remediate Wastewater. - 132 p.

Source: Masters Abstracts International, Volume: 51-05.

Thesis (M.S.)--North Carolina Agricultural and Technical State University, 2012.

Chemical oxidation is a process that involves injection of reactive liquid or gas chemical oxidants, such as ozone gas and crystalline permanganate, into groundwater and/or soil for rapid contaminant destruction. Two controlled release biodegradable pellets (CRP) for remediating contaminants in the environment were developed using the oxidants KHSO5 (Oxone) and KMnO4 encapsulated in polycaprolactone (PCL). These CRPs have already shown to inactivate bacteria such as Escherichia coli, Total Coliform, and Enterococci and effectively treat contaminated water. This research focuses on the toxic effects of CRPs on vegetation, mammalian cells, and living organisms to determine a safe and effective concentration threshold. It was hypothesized that shorter exposure would lead to higher toxicity. The CRPs were tested at 0.3g Oxone in 0.5g PCL, 0.1g KMnO4 in 0.5g PCL, and 0.5g PCL for 1 day up to 2 weeks to determine if the treatments affect appearance, pH, growth, or sustainability. The CRP treatments in the presence of tap and high strength waste water did not affect vegetation's appearance, pH, or growth by a substantial margin. Lactate dehydrogenase cytotoxicity assays indicated that KMnO4 CRPs present in treated waters for at least one week showed lower toxicity potential than CRPs treated for at least one day. Cell proliferation assays and the whole effluent toxicity test with Daphnia magna findings were consistent with the LDH assay results. Taken together these findings may indicate that KMnO 4 CRP has the highest potential to be considered a highly effective non-toxic wastewater remediation technology with minimal risk of environmental toxicity.

ISBN: 9781267962652Subjects--Topical Terms:

1017752
Health Sciences, Toxicology.

Environmental and Health Risk Assessment of Controlled Release Oxidation Prototypes Designed To Remediate Wastewater.
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520 $a Chemical oxidation is a process that involves injection of reactive liquid or gas chemical oxidants, such as ozone gas and crystalline permanganate, into groundwater and/or soil for rapid contaminant destruction. Two controlled release biodegradable pellets (CRP) for remediating contaminants in the environment were developed using the oxidants KHSO5 (Oxone) and KMnO4 encapsulated in polycaprolactone (PCL). These CRPs have already shown to inactivate bacteria such as Escherichia coli, Total Coliform, and Enterococci and effectively treat contaminated water. This research focuses on the toxic effects of CRPs on vegetation, mammalian cells, and living organisms to determine a safe and effective concentration threshold. It was hypothesized that shorter exposure would lead to higher toxicity. The CRPs were tested at 0.3g Oxone in 0.5g PCL, 0.1g KMnO4 in 0.5g PCL, and 0.5g PCL for 1 day up to 2 weeks to determine if the treatments affect appearance, pH, growth, or sustainability. The CRP treatments in the presence of tap and high strength waste water did not affect vegetation's appearance, pH, or growth by a substantial margin. Lactate dehydrogenase cytotoxicity assays indicated that KMnO4 CRPs present in treated waters for at least one week showed lower toxicity potential than CRPs treated for at least one day. Cell proliferation assays and the whole effluent toxicity test with Daphnia magna findings were consistent with the LDH assay results. Taken together these findings may indicate that KMnO 4 CRP has the highest potential to be considered a highly effective non-toxic wastewater remediation technology with minimal risk of environmental toxicity.
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