What should be recycled : an integrated model for product recycling desirability
- Sultan, Al Amin Mohamed, Lou, Eric, Mativenga, Paul Tarisai
- Authors: Sultan, Al Amin Mohamed , Lou, Eric , Mativenga, Paul Tarisai
- Date: 2017
- Subjects: Circular economy , Recycling desirability , Complexity
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/245858 , uj:25473 , Citation: Sultan, A.A.M., Lou, E. & Mativenga, P.T. 2017. What should be recycled : an integrated model for product recycling desirability. Journal of Cleaner Production, 154:51-60. DOI: http://dx.doi.org/10.1016/j.jclepro.2017.03.201
- Description: Abstract: This research was focused on developing a new scientific approach for prioritising recycling of end-of-life products in a circular economy. To date, product complexity based on the mixture of materials has been used as a predictor of what gets recycled. While the separation of materials that make up a product has been modelled as a measure of product complexity, this does not taken into account the benefits and considerations in recycling products. In this paper, a new agenda and approach to prioritise the recycling of products was developed based on a recycling desirability index. The material mixing complexity measure was inverted into a simplicity index and then extended by modelling the security index for the mix of materials and the technological readiness level of recycling technologies. The extended model is proposed as an integrated measure of the desirability of recycling end-of-life products. From this analysis, an apparent recycling desirability boundary, enabling products to be prioritised for recycling, was developed. This model and analysis can be used as an information source in developing policies and product recycling priorities.
- Full Text:
- Authors: Sultan, Al Amin Mohamed , Lou, Eric , Mativenga, Paul Tarisai
- Date: 2017
- Subjects: Circular economy , Recycling desirability , Complexity
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/245858 , uj:25473 , Citation: Sultan, A.A.M., Lou, E. & Mativenga, P.T. 2017. What should be recycled : an integrated model for product recycling desirability. Journal of Cleaner Production, 154:51-60. DOI: http://dx.doi.org/10.1016/j.jclepro.2017.03.201
- Description: Abstract: This research was focused on developing a new scientific approach for prioritising recycling of end-of-life products in a circular economy. To date, product complexity based on the mixture of materials has been used as a predictor of what gets recycled. While the separation of materials that make up a product has been modelled as a measure of product complexity, this does not taken into account the benefits and considerations in recycling products. In this paper, a new agenda and approach to prioritise the recycling of products was developed based on a recycling desirability index. The material mixing complexity measure was inverted into a simplicity index and then extended by modelling the security index for the mix of materials and the technological readiness level of recycling technologies. The extended model is proposed as an integrated measure of the desirability of recycling end-of-life products. From this analysis, an apparent recycling desirability boundary, enabling products to be prioritised for recycling, was developed. This model and analysis can be used as an information source in developing policies and product recycling priorities.
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What ecotechnologies exist for recycling carbon and nutrients from domestic wastewater? A systematic map protocol
- Haddaway, Neal R., Johannesdottir, Solveig L., Piniewski, Mikołaj, Macura, Biljana
- Authors: Haddaway, Neal R. , Johannesdottir, Solveig L. , Piniewski, Mikołaj , Macura, Biljana
- Date: 2018
- Subjects: Circular economy , Energy recovery , Nitrogen
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/289962 , uj:31470 , Citation: Haddaway, N.R. et al. 2018. What ecotechnologies exist for recycling carbon and nutrients from domestic wastewater? A systematic map protocol. Haddaway et al. Environ Evid (2019) 8:1 https://doi.org/10.1186/s13750-018-0145-z
- Description: Abstract: Background: Pollution of the Baltic Sea continues to be a problem. Major terrestrial sources of nutrient emissions to the Baltic Sea are agriculture and wastewater, both major causes of eutrophication. Wastewater contains nutrients and organic matter that could constitute valuable products such as agricultural fertilizers and source of energy. With the EU’s action plan for circular economy, waste management and resource utilization is central. Thus the integration of resource recovery to wastewater management could create benefits beyond the wastewater sector. There is a growing interest in resource recovery from wastewater. However, there is no systematic overview of the literature on technologies to recover nutrients and carbon from wastewater sources done to date. Methods: This systematic map will identify a representative list of studies on ecotechnologies for reusing carbon and nutrients (nitrogen and phosphorus) from domestic wastewater, which includes e.g. sewage sludge and wastewater fractions. Searches will be performed in five bibliographic databases, one search engine and 38 specialist websites. Searches will mainly be performed in English, search for literature in specialist websites will also include Finnish, Polish and Swedish. Coding and meta-data extraction will include information on ecotechnology name and short description, reuse outcome (i.e. reuse of carbon, nitrogen and/or phosphorus), type of reuse (i.e. whether it is explicit or implicit), study country and location, latitude and longitude. All screening and coding will be done after initial consistency checking. The outcomes of this systematic map will be a searchable database of coded studies. Findings will be presented in a geo-informational system (i.e. an evidence atlas) and knowledge gaps and clusters will be visualised via heat maps.
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- Authors: Haddaway, Neal R. , Johannesdottir, Solveig L. , Piniewski, Mikołaj , Macura, Biljana
- Date: 2018
- Subjects: Circular economy , Energy recovery , Nitrogen
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/289962 , uj:31470 , Citation: Haddaway, N.R. et al. 2018. What ecotechnologies exist for recycling carbon and nutrients from domestic wastewater? A systematic map protocol. Haddaway et al. Environ Evid (2019) 8:1 https://doi.org/10.1186/s13750-018-0145-z
- Description: Abstract: Background: Pollution of the Baltic Sea continues to be a problem. Major terrestrial sources of nutrient emissions to the Baltic Sea are agriculture and wastewater, both major causes of eutrophication. Wastewater contains nutrients and organic matter that could constitute valuable products such as agricultural fertilizers and source of energy. With the EU’s action plan for circular economy, waste management and resource utilization is central. Thus the integration of resource recovery to wastewater management could create benefits beyond the wastewater sector. There is a growing interest in resource recovery from wastewater. However, there is no systematic overview of the literature on technologies to recover nutrients and carbon from wastewater sources done to date. Methods: This systematic map will identify a representative list of studies on ecotechnologies for reusing carbon and nutrients (nitrogen and phosphorus) from domestic wastewater, which includes e.g. sewage sludge and wastewater fractions. Searches will be performed in five bibliographic databases, one search engine and 38 specialist websites. Searches will mainly be performed in English, search for literature in specialist websites will also include Finnish, Polish and Swedish. Coding and meta-data extraction will include information on ecotechnology name and short description, reuse outcome (i.e. reuse of carbon, nitrogen and/or phosphorus), type of reuse (i.e. whether it is explicit or implicit), study country and location, latitude and longitude. All screening and coding will be done after initial consistency checking. The outcomes of this systematic map will be a searchable database of coded studies. Findings will be presented in a geo-informational system (i.e. an evidence atlas) and knowledge gaps and clusters will be visualised via heat maps.
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What evidence exists relating to effectiveness of ecotechnologies in agriculture for the recovery and reuse of carbon and nutrients in the Baltic and boreo‑temperate regions? a systematic map protocol
- Haddaway, Neal R., Piniewski, Mikołaj, Macura, Biljana
- Authors: Haddaway, Neal R. , Piniewski, Mikołaj , Macura, Biljana
- Date: 2019
- Subjects: Carbon , Circular economy , Eutrophic
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/399965 , uj:33359 , Citation: Haddaway, N.R., Piniewski, M. & Macura, B. 2019. What evidence exists relating to effectiveness of ecotechnologies in agriculture for the recovery and reuse of carbon and nutrients in the Baltic and boreo‑temperate regions? a systematic map protocol. Environ Evid (2019) 8:5 https://doi.org/10.1186/s13750-019-0150-.
- Description: Abstract: Background: The degradation of the water quality of the Baltic Sea is an ongoing problem, despite investments in measures to reduce external inputs of pollutants and nutrients from both diffuse and point sources. Excessive inputs of nutrients coming from the surrounding land are among the primary causes of the Baltic Sea eutrophication. Diffuse sources, of which most originate from agricultural activities, are two dominant riverine pollution pathways for both nitrogen and phosphorus. Recently, there is growing attention on the reuse of carbon, nitrogen and phosphorus from agricultural waste streams. However, to our knowledge, no comprehensive and systematic assessment of ecotechnologies focusing on recovery or reuse of these substances in the agricultural sector is available. Methods: This map will examine what evidence exists relating to effectiveness of ecotechnologies (here defined as ‘human interventions in social-ecological systems in the form of practices and/or biological, physical, and chemical processes designed to minimise harm to the environment and provide services of value to society’) in agriculture for the reuse of carbon and/or nutrients (nitrogen and phosphorus) in the Baltic Sea region and boreo-temperate systems. We will search for both academic and grey literature: English language searches will be performed in 4 bibliographic databases and search platforms, and Google Scholar, while searches in 38 specialist websites will be performed in English, Finnish, Polish and Swedish. The searches will be restricted to the period 2013 to 2017. Eligibility screening will be conducted at two levels: title and abstract (screened concurrently for efficiency) and full text. Meta-data will be extracted from eligible studies including bibliographic details, study location, ecotechnology name and description, type of outcome (i.e. recovered or reused carbon and/or nutrients), type of ecotechnology in terms of recovery source, and type of reuse (in terms of the end-product). Findings will be presented narratively and in a searchable geographically explicit database, visualised in an evidence atlas (an interactive geographical information system). Knowledge gaps and knowledge clusters in the evidence base will be identified and described.
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- Authors: Haddaway, Neal R. , Piniewski, Mikołaj , Macura, Biljana
- Date: 2019
- Subjects: Carbon , Circular economy , Eutrophic
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/399965 , uj:33359 , Citation: Haddaway, N.R., Piniewski, M. & Macura, B. 2019. What evidence exists relating to effectiveness of ecotechnologies in agriculture for the recovery and reuse of carbon and nutrients in the Baltic and boreo‑temperate regions? a systematic map protocol. Environ Evid (2019) 8:5 https://doi.org/10.1186/s13750-019-0150-.
- Description: Abstract: Background: The degradation of the water quality of the Baltic Sea is an ongoing problem, despite investments in measures to reduce external inputs of pollutants and nutrients from both diffuse and point sources. Excessive inputs of nutrients coming from the surrounding land are among the primary causes of the Baltic Sea eutrophication. Diffuse sources, of which most originate from agricultural activities, are two dominant riverine pollution pathways for both nitrogen and phosphorus. Recently, there is growing attention on the reuse of carbon, nitrogen and phosphorus from agricultural waste streams. However, to our knowledge, no comprehensive and systematic assessment of ecotechnologies focusing on recovery or reuse of these substances in the agricultural sector is available. Methods: This map will examine what evidence exists relating to effectiveness of ecotechnologies (here defined as ‘human interventions in social-ecological systems in the form of practices and/or biological, physical, and chemical processes designed to minimise harm to the environment and provide services of value to society’) in agriculture for the reuse of carbon and/or nutrients (nitrogen and phosphorus) in the Baltic Sea region and boreo-temperate systems. We will search for both academic and grey literature: English language searches will be performed in 4 bibliographic databases and search platforms, and Google Scholar, while searches in 38 specialist websites will be performed in English, Finnish, Polish and Swedish. The searches will be restricted to the period 2013 to 2017. Eligibility screening will be conducted at two levels: title and abstract (screened concurrently for efficiency) and full text. Meta-data will be extracted from eligible studies including bibliographic details, study location, ecotechnology name and description, type of outcome (i.e. recovered or reused carbon and/or nutrients), type of ecotechnology in terms of recovery source, and type of reuse (in terms of the end-product). Findings will be presented narratively and in a searchable geographically explicit database, visualised in an evidence atlas (an interactive geographical information system). Knowledge gaps and knowledge clusters in the evidence base will be identified and described.
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Industry 4.0 and the circular economy : melioration of business logistics sustainability
- Bag, S., Yadav, G., Wood, L. C., Dhamija, P., Joshi, S.
- Authors: Bag, S. , Yadav, G. , Wood, L. C. , Dhamija, P. , Joshi, S.
- Date: 2020
- Subjects: Business logistics , Industry 4.0 , Circular economy
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/436249 , uj:37834 , Citation: Bag, S. et al. 2020. Industry 4.0 and the circular economy: melioration of business logistics sustainability.
- Description: Abstract: Mining and mineral resources help provide the requirements of everyday life by contributing to essential products and services. In the era of fourth industrial revolution, the trend in logistics is toward a smart logistics system. Therefore, it becomes important to understand how Industry 4.0 enablers effect smart logistics, i.e., instrumented logistics, interconnected logistics, and intelligent logistics. This study investigates how Industry 4.0 logistics technologies influence dynamic remanufacturing and green manufacturing capability and, the effect on business logistics sustainability. Survey data were collected from 150 respondents using an online survey of South African executives in firms operating mines, quarries, and processing plants. Partial Least Squares based structural equation modelling (PLS-SEM) was used to test the hypotheses. The findings indicate that Industry 4.0 enablers have a strong effect on intelligent logistics compared to its effect on interconnected logistics and instrumented logistics. The effect of intelligent logistics are found to be very high compared to that of interconnected logistics and instrumented logistics on dynamic remanufacturing and green manufacturing capability. Finally, dynamic remanufacturing and green manufacturing capability are found to positively influence business logistics sustainability.
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- Authors: Bag, S. , Yadav, G. , Wood, L. C. , Dhamija, P. , Joshi, S.
- Date: 2020
- Subjects: Business logistics , Industry 4.0 , Circular economy
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/436249 , uj:37834 , Citation: Bag, S. et al. 2020. Industry 4.0 and the circular economy: melioration of business logistics sustainability.
- Description: Abstract: Mining and mineral resources help provide the requirements of everyday life by contributing to essential products and services. In the era of fourth industrial revolution, the trend in logistics is toward a smart logistics system. Therefore, it becomes important to understand how Industry 4.0 enablers effect smart logistics, i.e., instrumented logistics, interconnected logistics, and intelligent logistics. This study investigates how Industry 4.0 logistics technologies influence dynamic remanufacturing and green manufacturing capability and, the effect on business logistics sustainability. Survey data were collected from 150 respondents using an online survey of South African executives in firms operating mines, quarries, and processing plants. Partial Least Squares based structural equation modelling (PLS-SEM) was used to test the hypotheses. The findings indicate that Industry 4.0 enablers have a strong effect on intelligent logistics compared to its effect on interconnected logistics and instrumented logistics. The effect of intelligent logistics are found to be very high compared to that of interconnected logistics and instrumented logistics on dynamic remanufacturing and green manufacturing capability. Finally, dynamic remanufacturing and green manufacturing capability are found to positively influence business logistics sustainability.
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Effect of resources and capabilities for integrating Industry 4.0 and sustainable production to unlock circular economy : a South African experience
- Bag, S., Yadav, G., Dhamija, P., Kataria, K. K.
- Authors: Bag, S. , Yadav, G. , Dhamija, P. , Kataria, K. K.
- Date: 2020
- Subjects: Industry 4.0 , Sustainable production , Circular economy
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/461102 , uj:41054 , Citation: Bag, S. et al. 2020. Effect of resources and capabilities for integrating Industry 4.0 and sustainable production to unlock circular economy : a South African experience.
- Description: Abstract: The study aspires to develop a theoretical model linking Industry 4.0 and cleaner production to unlock circular economy in an emerging economy of South Africa. Drawing upon Resource based view theory; the study aims to explore the firm resources and capabilities that are necessary to integrate Industry 4.0 technologies and sustainable production to further enhance circular economy performance and secondly, to investigate the impact of each research and capabilities on circular economy performance and finally, to outline agenda for ethical business development. The review of literature led to identification of thirty-five resources and capabilities that are essential for the integration of Industry 4.0 and sustainable production that will aid in unlocking circular economy. Further, exploratory factor analysis is used to group the variables under relevant factors and thereafter path modelling is performed using PLS-SEM technique. Research findings indicate that Project resources, Green team resources, Technological resources, Production and operations capabilities, Human resources capabilities, Management capabilities, Circularity capabilities, Information technology capabilities and Relationship capabilities are required for integration of I4.0 and sustainable production and further enhance CE performance. However, the Technological resources, Production and Operations capabilities and Circularity capabilities are found to have a stronger relationship with CE performance compared to rest of the resources and capabilities. The study concludes with theoretical and practical implications and agenda for ethical business developments.
- Full Text:
- Authors: Bag, S. , Yadav, G. , Dhamija, P. , Kataria, K. K.
- Date: 2020
- Subjects: Industry 4.0 , Sustainable production , Circular economy
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/461102 , uj:41054 , Citation: Bag, S. et al. 2020. Effect of resources and capabilities for integrating Industry 4.0 and sustainable production to unlock circular economy : a South African experience.
- Description: Abstract: The study aspires to develop a theoretical model linking Industry 4.0 and cleaner production to unlock circular economy in an emerging economy of South Africa. Drawing upon Resource based view theory; the study aims to explore the firm resources and capabilities that are necessary to integrate Industry 4.0 technologies and sustainable production to further enhance circular economy performance and secondly, to investigate the impact of each research and capabilities on circular economy performance and finally, to outline agenda for ethical business development. The review of literature led to identification of thirty-five resources and capabilities that are essential for the integration of Industry 4.0 and sustainable production that will aid in unlocking circular economy. Further, exploratory factor analysis is used to group the variables under relevant factors and thereafter path modelling is performed using PLS-SEM technique. Research findings indicate that Project resources, Green team resources, Technological resources, Production and operations capabilities, Human resources capabilities, Management capabilities, Circularity capabilities, Information technology capabilities and Relationship capabilities are required for integration of I4.0 and sustainable production and further enhance CE performance. However, the Technological resources, Production and Operations capabilities and Circularity capabilities are found to have a stronger relationship with CE performance compared to rest of the resources and capabilities. The study concludes with theoretical and practical implications and agenda for ethical business developments.
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