Дисертації з теми "Hazardous wastes Environmental aspects Victoria"
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Hung, Chien-ho. "Evaluation of leaching mechanisms and long-term leachability of metallic contaminants solidified/stabilized by cement matrices." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/20761.
Повний текст джерелаTsai, Yi-Chang. "A quantitative spatial thoroughness methodology for environmental site characterization." Diss., Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/19503.
Повний текст джерелаTlhapane, Keatlaretse Kefilwe. "A case study exploring the level of awareness of NCP Chlorchem's staff of environmental costs associated with hazardous waste." Thesis, Rhodes University, 2014. http://hdl.handle.net/10962/d1015639.
Повний текст джерелаRobinson, Janet E. "Hazardous waste treatment and disposal: alternative technologies and groundwater impacts." Thesis, Virginia Polytechnic Institute and State University, 1986. http://hdl.handle.net/10919/91066.
Повний текст джерелаM.S.
Woods, William Eric. "Copper migration through petroleum-treated soils." Virtual Press, 1990. http://liblink.bsu.edu/uhtbin/catkey/722463.
Повний текст джерелаDepartment of Natural Resources
Sorenson, Mary T. "Deterministic vs probabilistic ecological risk assessment modeling at hazardous waste sites : a comparative case study." Thesis, Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/25303.
Повний текст джерелаBooker, Randall Sulter Jr. "Microbial reductive dechlorination of hexachloro-1,3-butadiene." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/20921.
Повний текст джерелаYang, Yun. "Temperature dependent PCDD/PCDF product distributions from phenols." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/20182.
Повний текст джерелаAkki, Umesh. "Gas phase formation pathways and mechanisms of polychlorinated dibenzo-p-dioxins and dibenzofurans." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/23157.
Повний текст джерелаMiller, Carla Joan. "Water quality and macroinvertebrate populations of Finley Creek before and after a hazardous waste cleanup." Virtual Press, 1988. http://liblink.bsu.edu/uhtbin/catkey/546147.
Повний текст джерелаDepartment of Natural Resources
Mayer, Kate A. "Laboratory chamber experiments simulating in-situ plasma vitrification for geoenvironmental concerns." Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/18990.
Повний текст джерелаLake, Bjorn Anders. "The Use of Semipermeable Membrane Devices (SPMDS) for Monitoring Dioxin Levels in Maine Rivers." Fogler Library, University of Maine, 2003. http://www.library.umaine.edu/theses/pdf/LakeBA2003.pdf.
Повний текст джерелаKantachote, Duangporn. "The use of microbial inoculants to enhance DDT degradation in contaminated soil." Title page, contents and abstract only, 2001. http://web4.library.adelaide.edu.au/theses/09PH/09phk165.pdf.
Повний текст джерелаLeung, Oi-kwan Winnie, and 梁愛群. "A preliminary study on the Hong Kong external trade of non-ferrous metal waste (and scrap) and other potentially hazardous wastematerials." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1995. http://hub.hku.hk/bib/B31253180.
Повний текст джерелаMbakwa, Emmanuel Fon. "Accumulation of lead and manganese in soil along the N1 highway in the City of Cape Town after the banning of leaded petrol in South Africa." Thesis, Cape Peninsula University of Technology, 2015. http://hdl.handle.net/20.500.11838/803.
Повний текст джерелаSoil contamination by metals is a serious environmental problem that has significant implications for human health. Roadside soils have been shown to have considerable contamination due to depositions of metals by vehicles. Metal pollution poses significant environmental concerns because most metals are not biodegradable and often have long half-lives, thus predicating far reaching effects on biological systems, including the soil. Unleaded petrol has been available in South Africa since 1996. The conversion from leaded to unleaded petrol has been a slow process. Leaded petrol has been totally phased out since January 2006. The manganese-containing fuel additive methylcyclopentadienyl manganese tricarbonyl (MMT) that was introduced to automobile fuel formulae as an octane boosting and “anti-knock” agent, to replace or reduce the lead content in petrol, was officially approved in some developed countries. Despite the fact that metal contamination of soil has long been known, few studies have been carried out into its vertical distribution in the soil. The objectives of this investigation were: firstly, to assess the accumulation of lead and manganese in soil along the N1 highway; secondly, to determine the vertical distribution of lead and manganese in soil along the N1 highway; and thirdly, to compare the concentrations of lead and manganese in soil along the N1 highway, before and after the banning of leaded petrol in South Africa. Six soil samples were taken at each site approximately two meters from the road verges and at a depth of approximately 0-2cm of surface soil. The sampling period commenced on the 16th of February 2011 and ended on the 28th of December 2011. Once-off soil samples were also collected at sites 1, 5 and 6 at depths of 0-2cm, 30cm and 60cm, respectively. Samples were digested with 10 ml 55% nitric acid. Lead and manganese concentrations were determined by using Inductively Coupled Plasma Mass Spectrophotometer (ICP–MS). The mean concentrations of lead found in the roadside soils of the N1 highway ranged between 7.32mg/kg and 2068.31mg/kg and these were of high concentrations when compared to studies done in other countries. Results from the vertical distribution of lead investigation showed that lead concentrations ranged from 52.72mg/kg to 215.94mg/kg at surface level, from 15.80mg/kg to 164mg/kg at a depth of 30cm and from 14.06mg/kg to 216.07mg/kg at a depth of 60cm from the surface. It was also shown that there is a positive correlation between lead concentration and the amount of organic content (although not statistical), concluding that as the amount of organic content increases lead concentrations also increase. The mean manganese concentrations found in the roadside soils of the N1 ranged between 12.17mg/kg and 221.47mg/kg. The levels of manganese in the soil were found to be relatively low when compared to other studies an indication of mild to low metal contamination of the sampled soils. Results from the vertical distribution of manganese concentrations showed that concentrations in the soil ranged from 39.23 mg/kg to 63.32 mg/kg at surface level, from 14.4mg/kg to 310.86mg/kg for depths of up to 30cm, and from 4.42mg/kg to 343.96mg/kg for depths of up to 60cm. No relationships of manganese levels in the soil were found at any of the sites when sites were compared prior to the banning of lead and after the banning of lead despite the increased traffic volumes and, thus, increased MMT usage over the years, indicating that manganese contribution from MMT is very low and does not significantly increase soil contamination along the N1 highway. However, further investigations are needed into the future to monitor manganese contamination that may possibly occur.
Kwok, Hon-chiu, and 郭漢超. "An overview of chemical waste management of printed circuit board manufacturing in Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B31253428.
Повний текст джерелаAnnarapu, Shashidhar. "Thermal Analysis of Binding of Organic Pollutants to Titanium Dioxide." TopSCHOLAR®, 2014. http://digitalcommons.wku.edu/theses/1338.
Повний текст джерелаSattar, Mohamed Shaheen. "An environmental impact perspective of the management, treatment, and disposal of hazardous pharmaceutical compounds generated as medical waste at selected hospitals in Cape Town, South Africa." Thesis, Cape Peninsula University of Technology, 2011. http://hdl.handle.net/20.500.11838/2012.
Повний текст джерелаPharmaceuticals have been formulated to influence physiological systems in humans, animals, and microbes but have never been considered as potential environmental pollutants by healthcare professionals. The human body is not a barrier to chemicals, but is permeable to it. Thus after performing their in-vivo functions, pharmaceutical compound introduced into the body, exit mainly via urine and faeces. Sewage therefore contains highly complex mixtures of chemicals in various degrees of biological potency. Sewage treatment works including those in South Africa, on the other hand, are known to be inefficient in removing drugs from sewage and consequently either the unmetabolised pharmaceutical compounds or their metabolites emerge in the environment as pollutants via several trajectories. In the environment, the excreted metabolites may even undergo regeneration to the original parent molecule under bacterial influence, resulting in "trans-vivo-pharmaceutical-pollution-cycles". Although all incinerators are known to generate toxins such dioxins and furans from the drugs they incinerate, all the medicines disposed by the hospitals under research, were incinerated, as the preferred option of disposal. The incineration process employed was found to be environmentally unsafe. Expired and unused medicines which the general public discard as municipal solid waste become landfilled. Because many landfill sites are not appropriately engineered, the unwanted drugs landfilled therein, leach into the surrounding ground water, which is the influent source of water treatment plants. Water treatment plants, including those in South Africa, are also inefficient in eliminating pharmaceutical compounds, releasing them in sub-therapeutic concentrations into potable tap water as pollutants, the full effects of which are yet to be determined.
Sattar, Shaheen. "An environmental impact perspective of the management, treatment, and disposal of hazardous compounds generated as medical waste at selected hospitals in Cape Town, South Africa." Thesis, Cape Peninsula University of Technology, 2013. http://hdl.handle.net/20.500.11838/802.
Повний текст джерелаPharmaceuticals have been formulated to influence physiological systems in humans, animals, and microbes but have never been considered as potential environmental pollutants by healthcare professionals. The human body is not a barrier to chemicals, but is permeable to it. Thus after performing their in-vivo functions, pharmaceutical compound introduced into the body, exit mainly via urine and faeces. Sewage therefore contains highly complex mixtures of chemicals in various degrees of biological potency. Sewage treatment works including those in South Africa, on the other hand, are known to be inefficient in removing drugs from sewage and consequently either the unmetabolised pharmaceutical compounds or their metabolites emerge in the environment as pollutants via several trajectories. In the environment, the excreted metabolites may even undergo regeneration to the original parent molecule under bacterial influence, resulting in “trans-vivo-pharmaceutical-pol ution-cycles”. Although all incinerators are known to generate toxins such dioxins and furans from the drugs they incinerate, all the medicines disposed by the hospitals under research, were incinerated, as the preferred option of disposal. The incineration process employed was found to be environmentally unsafe. Expired and unused medicines which the general public discard as municipal solid waste become landfilled. Because many landfill sites are not appropriately engineered, the unwanted drugs landfilled therein, leach into the surrounding ground water, which is the influent source of water treatment plants. Water treatment plants, including those in South Africa, are also inefficient in eliminating pharmaceutical compounds, releasing them in sub-therapeutic concentrations into potable tap water as pollutants, the full effects of which are yet to be determined.
朱笑涵. "中國地方政府環保政策執行研究 : 以廣東省貴嶼鎮電子廢棄物回收產業污染問題為例". Thesis, University of Macau, 2010. http://umaclib3.umac.mo/record=b2554444.
Повний текст джерелаBarbosa, Ricardo. "Avaliação da geração de resíduos em disciplinas de química orgânica e inorgânica e propostas de redução." Universidade Tecnológica Federal do Paraná, 2015. http://repositorio.utfpr.edu.br/jspui/handle/1/1162.
Повний текст джерелаThe Academic Department of Chemistry and Biology of UTFPR- Campus Curitiba today has 30 laboratories dedicated to teaching and research activities. Currently, waste generated by these laboratories are collected and proceed to final disposal. In this study, we conducted a survey of the current situation of the generation of laboratory chemical waste in the Department. Initially teaching laboratories were selected for execution of work for meeting more students and their frequent activity, were identified that met more students and where they were executed more practical classes. Studied the characteristics of the waste generated in these classes, based on the teaching plans, monitoring of some subjects during the execution of experiments and records the warehouse. There was the possibility of experimental changes, preventing the generation of waste, as set out the principles of green chemistry. Thus, the disciplines of Inorganic and Organic Chemistry were considered with good opportunities for intervention. The experimental manuals of these subjects were studied, and the inventory of the waste generated by them showed the generation of hazardous waste according to NBR 10004 of ABNT. We developed five new routes of practical classes and methodological changes proposed involved the replacement of reagents that could give rise to hazardous waste containing barium, lead, ethyl acetate and chloroform. It was proposed in the literature to explain theoretically proposed, which were tested in the laboratory. The tests met the proposed objectives, proving the applicability of the suggested changes. One of the modified scripts was applied in practical class in order to verify its applicability and how students receive the changes. Students performed and observed phenomena according to the objectives of the roadmap, proving that learning was not harmed and that the didactic nature of the class was held. In conclusion, you can perform the practical lessons of the disciplines mentioned preventing the generation of hazardous waste through simple and applicable techniques, maintaining the initial objectives of the practical classes and incorporating up principles of Green Chemistry.
Sedumedi, Hilda N. "Chromium contamination in the vicinity of [the] Xstrata Wonderkop plant." Thesis, 2009. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000304.
Повний текст джерелаThe aim of this study was to develop and evaluate an analytical method for the determination of Cr(VI) in ferrochrome dusts and to apply the method in the analysis of environmental samples (grass, soil and tree bark) for Cr(VI) content (that might be caused by dust emissions originating from the smelter). Both the public and Xstrata Wonderkop ferrochrome plant will benefit from data of Cr(VI) determination generated from the study. The information can potentially be incorporated into health risk assessments of the affected geographical areas. The results of the investigation showed that ferrochrome smelter dust emissions were the source of contamination of the environment with Cr(VI). With time, Cr(VI) could accumulate in soil to unacceptable levels, thereby endangering both plants and animals.
Baggs, Jennifer Jane. "Trade barriers, international business, and the environment." Thesis, 2002. http://hdl.handle.net/2429/13304.
Повний текст джерелаLike, David E. "Management of chromium wastes in industry." Thesis, 1991. http://hdl.handle.net/1957/37990.
Повний текст джерелаGraduation date: 1991
Chetty, Nevendra Krishniah. "Stabilisation of waste in shallow test cells : focus on biogas." Thesis, 2006. http://hdl.handle.net/10413/1531.
Повний текст джерелаThesis (M.Sc.Eng.)-University of KwaZulu-Natal, 2006.
Kantachote, Duangporn. "The use of microbial inoculants to enhance DDT degradation in contaminated soil / Duangporn Kantachote." Thesis, 2001. http://hdl.handle.net/2440/21703.
Повний текст джерелаMcEvoy, John. "A household hazardous waste survey of Benton County, OR." Thesis, 1991. http://hdl.handle.net/1957/37019.
Повний текст джерелаGraduation date: 1992
Atagana, Harrison Ifeanyichukwu. "Bioremediation of creosote-contaminated soil by microbial intervention." Thesis, 2002. http://hdl.handle.net/10413/4902.
Повний текст джерелаDesta, Tsegazeab Goje. "Humic acid pretreatment for enhancing microbial removal of metals from a synthetic 'wastewater'." Thesis, 2004. http://hdl.handle.net/10413/3576.
Повний текст джерелаThesis (M.Sc.)-University of KwaZulu-Natal, Pietermaritzburg, 2004.
Mnisi, Fannie. "Environmental risk assessment associated with unregulated landfills in the Albert Luthuli Municipality, Mpumalanga Province, RSA." Thesis, 2008. http://hdl.handle.net/10500/2274.
Повний текст джерелаEnvironmental Sciences
M.Sc.(Environmental Sciences)
Nayager, Dan. "Causes of near miss and minor operating incidents at selected chemical organisations in Durban and their impact on key functional areas." Thesis, 2015. http://hdl.handle.net/10321/1301.
Повний текст джерелаManqele, Mbaweni Beauty. Thesis, Rhodes University, 2006. http://hdl.handle.net/10962/d1003377.
Повний текст джерелаChisango, Eliot Tichaona. "Potential to grow informal waste recycling in semi-urban areas: case of the P.E.A.C.E. recycling buyback centre in Senwabarwana, Limpopo." Diss., 2017. http://hdl.handle.net/10500/23722.
Повний текст джерелаEnvironmental Sciences
M. Sc. (Environmental Science)