Immobilisation of copper, chromium and arsenic on stabilised domestic refuse

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dc.contributor.advisorPetrie, Jimen_ZA
dc.contributor.authorBallard, Richard Hughen_ZA
dc.date.accessioned2014-11-10T09:02:33Z
dc.date.available2014-11-10T09:02:33Z
dc.date.issued1997en_ZA
dc.descriptionIncludes bibliography.en_ZA
dc.description.abstractThe disposal of copper-chromium-arsenic, whether in solution or in combination with wood, has the potential to become a global problem. This chemical is commonly called CCA or Tanalith, and is classed as a waterborne wood preservative. Current global production of this class of chemicals is estimated at 90 000 tonnes annum-1 In South Africa (1988), the production of preservative treated wood approximates 430 000 m3annum-1 (UNEP, 1994). An experimental study to assess of the capacity of landfill biomass to adsorb (and retain) copper, chromium and arsenic waste chemicals has been carried out at laboratory and pilot scale. The work is motivated by the desire to explore the potential of domestic landfill sites to act as a final depositories for hazardous chemicals at minimal environmental risk. Copper is .present as the sulphate (copper (II)); chromium is present as dichromate (chromium (VI)); arsenic is present as the pentoxide (arsenic(V)). The laboratory scale investigation focused on the evaluation of kinetic rate constants (adsorption and desorption) and the evaluation of adsorption isotherms. At pilot-scale, the residence time distribution/deviation from ideal behaviour of the pilot-scale landfill columns was determined. Subsequently, the kinetic rate constants and the results from the residence time distribution studies were evaluated at pilot-scale. The final phase of the investigation was the application of the data obtained at laboratory and pilot-scale, to an assessment of full scale landfill practice.en_ZA
dc.identifier.apacitationBallard, R. H. (1997). <i>Immobilisation of copper, chromium and arsenic on stabilised domestic refuse</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering. Retrieved from http://hdl.handle.net/11427/9493en_ZA
dc.identifier.chicagocitationBallard, Richard Hugh. <i>"Immobilisation of copper, chromium and arsenic on stabilised domestic refuse."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering, 1997. http://hdl.handle.net/11427/9493en_ZA
dc.identifier.citationBallard, R. 1997. Immobilisation of copper, chromium and arsenic on stabilised domestic refuse. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Ballard, Richard Hugh AB - The disposal of copper-chromium-arsenic, whether in solution or in combination with wood, has the potential to become a global problem. This chemical is commonly called CCA or Tanalith, and is classed as a waterborne wood preservative. Current global production of this class of chemicals is estimated at 90 000 tonnes annum-1 In South Africa (1988), the production of preservative treated wood approximates 430 000 m3annum-1 (UNEP, 1994). An experimental study to assess of the capacity of landfill biomass to adsorb (and retain) copper, chromium and arsenic waste chemicals has been carried out at laboratory and pilot scale. The work is motivated by the desire to explore the potential of domestic landfill sites to act as a final depositories for hazardous chemicals at minimal environmental risk. Copper is .present as the sulphate (copper (II)); chromium is present as dichromate (chromium (VI)); arsenic is present as the pentoxide (arsenic(V)). The laboratory scale investigation focused on the evaluation of kinetic rate constants (adsorption and desorption) and the evaluation of adsorption isotherms. At pilot-scale, the residence time distribution/deviation from ideal behaviour of the pilot-scale landfill columns was determined. Subsequently, the kinetic rate constants and the results from the residence time distribution studies were evaluated at pilot-scale. The final phase of the investigation was the application of the data obtained at laboratory and pilot-scale, to an assessment of full scale landfill practice. DA - 1997 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1997 T1 - Immobilisation of copper, chromium and arsenic on stabilised domestic refuse TI - Immobilisation of copper, chromium and arsenic on stabilised domestic refuse UR - http://hdl.handle.net/11427/9493 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/9493
dc.identifier.vancouvercitationBallard RH. Immobilisation of copper, chromium and arsenic on stabilised domestic refuse. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering, 1997 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/9493en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Chemical Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherChemical Engineeringen_ZA
dc.titleImmobilisation of copper, chromium and arsenic on stabilised domestic refuseen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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