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Open AccessArticle
Location and Capacity Optimization of Waste Recycling Centers: Mathematical Models and Numerical Experiments
by
Shenming Xie
Shenming Xie 1,
Ying Terk Lim
Ying Terk Lim 1
,
Huiwen Wang
Huiwen Wang 1,*
,
Wen Yi
Wen Yi 1 and
Maxwell Fordjour Antwi-Afari
Maxwell Fordjour Antwi-Afari 2
1
Department of Building and Real Estate, Faculty of Construction and Environment, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 999077, China
2
Department of Civil Engineering, College of Engineering and Physical Sciences, Aston University, Birmingham B4 7ET, UK
*
Author to whom correspondence should be addressed.
Appl. Sci. 2024, 14(16), 7039; https://doi.org/10.3390/app14167039 (registering DOI)
Submission received: 29 June 2024
/
Revised: 5 August 2024
/
Accepted: 9 August 2024
/
Published: 11 August 2024
Abstract
With rapid urbanization growth, considerable amounts of construction waste are generated on an annual basis, posing significant economic and environmental challenges worldwide. Re-cycling construction waste is a sustainable way for waste disposal, leading to the necessity of meticulous planning of recycling centers. A well-designed plan for constructing recycling centers can effectively improve the recycling rate of construction waste while minimizing investment. This paper formulates a two-stage stochastic model for planning recycling centers with the objective of maximizing the recycling rate under different scenarios. This study comprehensively considers various uncertain factors, such as the amount of construction waste generated and the demand for recycled materials. A case study of Guangzhou is used for validation, which demonstrates the effectiveness of the developed model in planning recycling center construction. The comparison between the proposed model and a conventional mean value model shows the importance of accounting for uncertainties. Specifically, the derived results indicate that 7% more construction waste is recycled with the same investment in constructing recycling centers. Additionally, via a sensitivity analysis, valuable managerial insights on investing resources in recycling center construction are provided to decision makers. Ultimately, the research findings are expected to enhance the recycling rate of construction waste, thereby contributing to sustainable industry development.
Share and Cite
MDPI and ACS Style
Xie, S.; Lim, Y.T.; Wang, H.; Yi, W.; Antwi-Afari, M.F.
Location and Capacity Optimization of Waste Recycling Centers: Mathematical Models and Numerical Experiments. Appl. Sci. 2024, 14, 7039.
https://doi.org/10.3390/app14167039
AMA Style
Xie S, Lim YT, Wang H, Yi W, Antwi-Afari MF.
Location and Capacity Optimization of Waste Recycling Centers: Mathematical Models and Numerical Experiments. Applied Sciences. 2024; 14(16):7039.
https://doi.org/10.3390/app14167039
Chicago/Turabian Style
Xie, Shenming, Ying Terk Lim, Huiwen Wang, Wen Yi, and Maxwell Fordjour Antwi-Afari.
2024. "Location and Capacity Optimization of Waste Recycling Centers: Mathematical Models and Numerical Experiments" Applied Sciences 14, no. 16: 7039.
https://doi.org/10.3390/app14167039
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