A benchmark study of waste tyre recycling in South Africa to European Union practice
- Sebola, M.R., Mativenga, P.T., Pretorius, J.
- Authors: Sebola, M.R. , Mativenga, P.T. , Pretorius, J.
- Date: 2018
- Subjects: End of life tyres , Legal regulations , Waste tyre management models
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/275005 , uj:29368 , Citation: Sebola, M.R., Mativenga, P.T. & Pretorius, J. 2018. A benchmark study of waste tyre recycling in South Africa to European Union practice. 25th CIRP Life Cycle Engineering (LCE) Conference, 30 April �� 2 May 2018, Copenhagen, Denmark.
- Description: Abstract: The number of vehicles is increasing globally resulting in an increase in end of life tyres. Waste tyres are now considered to be a source of valuable materials and structures which can be used to produce new goods and products of useful significance. Technologies and innovations for recovering end of life tyres are well established. Reuse, re-treading, energy and material recovery of end of life tyres are viable options. However, the recycling of waste tyres is not globally successful. The aim and motivation for this study was to compare the success of South Africa in waste tyre recycling to that of countries in the European Union and elucidate on factors that can help explain the gaps in recycling uptake. The European Union tyre recycling rates are closer to 100% while in South Africa the rate is less than 20%. Thus the EU is four times more effective than South Africa in addressing the problem of waste tyres. Legal regulations banning end of life tyre in landfills as well as waste tyre management models, such as extended producer responsibility, free market and tax system were evaluated. The paper contributes to an understanding of the differences, challenges and opportunities for waste management that can be obtained from international benchmarks.
- Full Text:
- Authors: Sebola, M.R. , Mativenga, P.T. , Pretorius, J.
- Date: 2018
- Subjects: End of life tyres , Legal regulations , Waste tyre management models
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/275005 , uj:29368 , Citation: Sebola, M.R., Mativenga, P.T. & Pretorius, J. 2018. A benchmark study of waste tyre recycling in South Africa to European Union practice. 25th CIRP Life Cycle Engineering (LCE) Conference, 30 April �� 2 May 2018, Copenhagen, Denmark.
- Description: Abstract: The number of vehicles is increasing globally resulting in an increase in end of life tyres. Waste tyres are now considered to be a source of valuable materials and structures which can be used to produce new goods and products of useful significance. Technologies and innovations for recovering end of life tyres are well established. Reuse, re-treading, energy and material recovery of end of life tyres are viable options. However, the recycling of waste tyres is not globally successful. The aim and motivation for this study was to compare the success of South Africa in waste tyre recycling to that of countries in the European Union and elucidate on factors that can help explain the gaps in recycling uptake. The European Union tyre recycling rates are closer to 100% while in South Africa the rate is less than 20%. Thus the EU is four times more effective than South Africa in addressing the problem of waste tyres. Legal regulations banning end of life tyre in landfills as well as waste tyre management models, such as extended producer responsibility, free market and tax system were evaluated. The paper contributes to an understanding of the differences, challenges and opportunities for waste management that can be obtained from international benchmarks.
- Full Text:
Economic evaluation of anaerobic digestion technology
- Sebola, M.R., Tesfagiorgis, H., Muzenda, E.
- Authors: Sebola, M.R. , Tesfagiorgis, H. , Muzenda, E.
- Date: 2016
- Subjects: Anaerobic digestion , Energy recovery , Waste disposal
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/123236 , uj:20767 , Citation: Sebola, M.R., Tesfagiorgis, H. & Muzenda, E. 2016. Economic evaluation of anaerobic digestion technology.
- Description: Abstract: This paper evaluates the viability of anaerobic digestion technology as a treatment process for organic waste with an intention of solving the landfill crisis as well as mitigation of greenhouse gases. The proposed technology consists of two digesters system using soaking as a pre-treatment method, and with recirculation of the process water and digested sludge. A financial model was developed to evaluate the economic feasibility of this technology as a renewable energy. Instead of the waste decomposing at local landfills, is converted into a source of energy while the by-products of the process are treated and used as fertilizers. This technology will require a capital investment of R 2, 2773,900 with a capacity to treat 730000 kg of waste annually. The annual production cost of R1, 269,138 was calculated. The proposed model has debt repayments of R 2,478,551. The total revenue from year 2 – 5 was R 2,360,800, R 2,930,158, R 3,457,314.6 and R 3,988,407.6, respectively. These AD facilities can produce up to 110960 kWh per annum of biogas fuel. The net present value of R3, 042,592, internal rate of return (IRR) of 33% and (BCR) of 1.96 shows that the technology is economically feasible.
- Full Text:
- Authors: Sebola, M.R. , Tesfagiorgis, H. , Muzenda, E.
- Date: 2016
- Subjects: Anaerobic digestion , Energy recovery , Waste disposal
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/123236 , uj:20767 , Citation: Sebola, M.R., Tesfagiorgis, H. & Muzenda, E. 2016. Economic evaluation of anaerobic digestion technology.
- Description: Abstract: This paper evaluates the viability of anaerobic digestion technology as a treatment process for organic waste with an intention of solving the landfill crisis as well as mitigation of greenhouse gases. The proposed technology consists of two digesters system using soaking as a pre-treatment method, and with recirculation of the process water and digested sludge. A financial model was developed to evaluate the economic feasibility of this technology as a renewable energy. Instead of the waste decomposing at local landfills, is converted into a source of energy while the by-products of the process are treated and used as fertilizers. This technology will require a capital investment of R 2, 2773,900 with a capacity to treat 730000 kg of waste annually. The annual production cost of R1, 269,138 was calculated. The proposed model has debt repayments of R 2,478,551. The total revenue from year 2 – 5 was R 2,360,800, R 2,930,158, R 3,457,314.6 and R 3,988,407.6, respectively. These AD facilities can produce up to 110960 kWh per annum of biogas fuel. The net present value of R3, 042,592, internal rate of return (IRR) of 33% and (BCR) of 1.96 shows that the technology is economically feasible.
- Full Text:
Economic evaluation of anaerobic digestion technology
- Sebola, M.R., Tesfagiorgis, T., Muzenda, E.
- Authors: Sebola, M.R. , Tesfagiorgis, T. , Muzenda, E.
- Date: 2016
- Subjects: Anaerobic digestion , Energy recovery , Waste disposal
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/213732 , uj:21189 , Citation: Sebola, M.R., Tesfagiorgis, T & Muzenda, E. 2016. Economic evaluation of anaerobic digestion technology.
- Description: Abstract: This paper evaluates the viability of anaerobic digestion technology as a treatment process for organic waste with an intention of solving the landfill crisis as well as mitigation of greenhouse gases. The proposed technology consists of two digesters system using soaking as a pre-treatment method, and with recirculation of the process water and digested sludge. A financial model was developed to evaluate the economic feasibility of this technology as a renewable energy. Instead of the waste decomposing at local landfills, is converted into a source of energy while the byproducts of the process are treated and used as fertilizers. This technology will require a capital investment of R 2, 2773,900 with a capacity to treat 730000 kg of waste annually. The annual production cost of R1, 269,138 was calculated. The proposed model has debt repayments of R 2,478,551. The total revenue from year 2 – 5 was R 2,360,800, R 2,930,158, R 3,457,314.6 and R 3,988,407.6, respectively. These AD facilities can produce up to 110960 kWh per annum of biogas fuel. The net present value of R3, 042,592, internal rate of return (IRR) of 33% and (BCR) of 1.96 shows that the technology is economically feasible.
- Full Text:
- Authors: Sebola, M.R. , Tesfagiorgis, T. , Muzenda, E.
- Date: 2016
- Subjects: Anaerobic digestion , Energy recovery , Waste disposal
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/213732 , uj:21189 , Citation: Sebola, M.R., Tesfagiorgis, T & Muzenda, E. 2016. Economic evaluation of anaerobic digestion technology.
- Description: Abstract: This paper evaluates the viability of anaerobic digestion technology as a treatment process for organic waste with an intention of solving the landfill crisis as well as mitigation of greenhouse gases. The proposed technology consists of two digesters system using soaking as a pre-treatment method, and with recirculation of the process water and digested sludge. A financial model was developed to evaluate the economic feasibility of this technology as a renewable energy. Instead of the waste decomposing at local landfills, is converted into a source of energy while the byproducts of the process are treated and used as fertilizers. This technology will require a capital investment of R 2, 2773,900 with a capacity to treat 730000 kg of waste annually. The annual production cost of R1, 269,138 was calculated. The proposed model has debt repayments of R 2,478,551. The total revenue from year 2 – 5 was R 2,360,800, R 2,930,158, R 3,457,314.6 and R 3,988,407.6, respectively. These AD facilities can produce up to 110960 kWh per annum of biogas fuel. The net present value of R3, 042,592, internal rate of return (IRR) of 33% and (BCR) of 1.96 shows that the technology is economically feasible.
- Full Text:
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