e-ISSN 2231-8526
ISSN 0128-7680
Muhammad Zulhazwan Rosni, Zati Aqmar Zaharudin and Adibah Shuib
Pertanika Journal of Science & Technology, Volume 33, Issue S3, December 2025
DOI: https://doi.org/10.47836/pjst.33.S3.06
Keywords: Covering model, facility locations, recycling, waste management
Published on: 2025-04-24
This study introduces an integer linear programming (ILP) model as an effective strategy to address the problem of facility location and allocation. The implemented model incorporated the concept of covering and finding optimal sites for facility locations to effectively satisfy demand at its optimum level. Identifying strategic and optimal locations for recycling bins, essential for maximizing the effectiveness of recycling initiatives, remains an area that requires substantial improvement, particularly within the context of Malaysia. The study used a mathematical model based on the Maximal Expected Covering Location Problem, with modifications including a fixed capacity level for each recycling facility. The model is applied to households in Seremban, the capital city of Negeri Sembilan in Peninsular Malaysia. The results indicate that three recycling facilities successfully covered the demand locations based on the performance of the modified model.
Azri, S., Ujang, U., & Abdullah, N. S. (2023). Within cluster pattern identification: A new approach for optimizing recycle point distribution to support policy implementation on waste management in Malaysia. Waste Management & Research: The Journal for a Sustainable Circular Economy, 41(3), 687-700. https://doi.org/10.1177/0734242X221123489
Baba-Nalikant, M., Syed-Mohamad, S. M., Husin, M. H., Abdullah, N. A., Mohamad Saleh, M. S., & Abdul Rahim, A. (2023). A Zero-Waste Campus Framework: Perceptions and practices of university campus community in Malaysia. Recycling, 8(1), 21. https://doi.org/10.3390/recycling8010021
Blanco, V., & Gázquez, R. (2023). Fairness in maximal covering location problems. Computers and Operations Research, 157(May), 106287. https://doi.org/10.1016/j.cor.2023.106287
Church, R., & ReVelle, C. (1974). The maximal covering location problem. Papers of the Regional Science Association, 32(1), 101-118. https://doi.org/10.1007/BF01942293
Cubillos, M., & Wøhlk, S. (2020). Solution of the maximal covering tour problem for locating recycling drop-off stations. Journal of the Operational Research Society, 72(8), 1898-1913. https://doi.org/10.1080/01605682.2020.1746701
Daim, N., & Mohamed Radhi, N. A. (2023). Separating waste at source to boost recycling rate. New Straits Times. https://www.nst.com.my/news/nation/2023/03/888284/separating-waste-source-boost-recycling-rate
Daskin, M. S. (1983). Maximum Expected Covering Location Model: Formulation, properties and heuristic solution. Transportation Science, 17(1), 48-70. https://doi.org/10.1287/trsc.17.1.48
Ghani, L. A. (2021). Exploring the municipal solid waste management via MFA-SAA approach in Terengganu, Malaysia. Environmental and Sustainability Indicators, 12, 100144. https://doi.org/10.1016/j.indic.2021.100144
Guan, Q., & Yang, Y. (2020). Reverse logistics network design model for used power battery under the third-party recovery mode. Proceedings - 2020 16th International Conference on Computational Intelligence and Security, CIS 2020, 293-297. https://doi.org/10.1109/CIS52066.2020.00069
Hartini, S., Puspitasari, D., & Utami, A. A. (2021). Design of waste cooking oil collection center in Semarang City using maximal covering location problem: A finding from Semarang, Indonesia. IOP Conference Series: Earth and Environmental Science, 623(1), 012100. https://doi.org/10.1088/1755-1315/623/1/012100
Hemidat, S., Achouri, O., Fels, L. El, Elagroudy, S., Hafidi, M., Chaouki, B., Ahmed, M., Hodgkinson, I., & Guo, J. (2022). Solid waste management in the context of a circular economy in the MENA Region. Sustainability (Switzerland), 14(1), 480. https://doi.org/10.3390/su14010480
Jamiron, N. F. H., Sarif, N. A. S., Abdul Rahman, N. S., & Zaharudin, Z. A. (2021). Establishing recycling bins location and allocation for sustainable urban municipalities of Johor Bahru in Malaysia. International Journal of Academic Research in Economics and Management Sciences, 10(3), 459-472. https://doi.org/10.6007/IJAREMS/v10-i3/11344
Kaza, S., Yao, L. C., Bhada-Tata, P., & Van Woerden, F. (2018). What a Waste 2.0: A global snapshot of solid waste management to 2050. In What a Waste 2.0: A Global Snapshot of Solid Waste Management to 2050. World Bank. https://doi.org/10.1596/978-1-4648-1329-0
Mustafa, M. A. S., Mohd Noor, N. H., Mohd Saharom, N. A., & Shamsol Kamal, N. S. S. (2022). Understanding Malaysian household waste separation: An extended theory of planned behaviour. Malaysian Journal of Sustainable Environment, 9(1), 19. https://doi.org/10.24191/myse.v9i1.17285
Rangga, J. U., Ismail, S. N. S., Rasdi, I., & Karuppiah, K. (2022). Waste management costs reduction and the recycling profit estimation from the segregation programme in Malaysia. Pertanika Journal of Science and Technology, 30(2), 1457-1478. https://doi.org/10.47836/pjst.30.2.34
Razali, F., Weng Wai, C., & Daud, D. (2019). A review of Malaysia solid waste management policies to improve recycling practice and waste separation among households. International Journal of Built Environment and Sustainability, 6(1–2), 39-45. https://doi.org/10.11113/ijbes.v6.n1-2.381
Rodzi, Z. M., Hazri, A. N., Mohd Azri, N. A. S., Sharul Rhmdan, N. D. F., Zaharudin, Z. A., & Uttunggadewa, S. (2023). Uncovering obstacles to household waste recycling in Seremban, Malaysia through Decision-Making Trial and Evaluation Laboratory (DEMATEL) analysis. Science and Technology Indonesia, 8(3), 422-428. https://doi.org/10.26554/sti.2023.8.3.422-428
Rosni, M. Z., Ishak, M. I., Mohd Shah, A. Z., & Zaharudin, Z. A. (2022). Location-Allocation Model of recycling facilities – A case study of Seremban, Malaysia. International Journal of Academic Research in Economics and Management and Sciences, 11(1), 56-69. https://doi.org/10.6007/IJAREMS/v11-i1/12119
Sari, D. P., Masruroh, N. A., & Asih, A. M. S. (2021). Extended maximal covering location and vehicle routing problems in designing smartphone waste collection channels: A case study of Yogyakarta Province, Indonesia. Sustainability, 13(16), 8896. https://doi.org/10.3390/su13168896
Shakil, N. S. M., Azhar, N. A. Z. M., & Othman, N. (2023). Solid waste management in Malaysia: An overview. Information Management and Business Review, 15(1(I)SI), 86-93. https://doi.org/10.22610/imbr.v15i1(I)SI.3410
Shuib, A., & Zaharudin, Z. A. (2011). TAZ_OPT: A goal programming model for ambulance location and allocation. 2011 IEEE Colloquium on Humanities, Science and Engineering, 945-950. https://doi.org/10.1109/CHUSER.2011.6163878
Sitepu, R., Puspita, F. M., Romelda, S., Fikri, A., Susanto, B., & Kaban, H. (2019). Set covering models in optimizing the emergency unit location of health facility in Palembang. Journal of Physics: Conference Series, 1282(1), 012008. https://doi.org/10.1088/1742-6596/1282/1/012008
Tiew, K. G., Basri, N. E. A., Deng, H., Watanabe, K., Zain, S. M., & Wang, S. (2019). Comparative study on recycling behaviours between regular recyclers and non regular recyclers in Malaysia. Journal of Environmental Management, 237(February 2019), 255-263. https://doi.org/10.1016/j.jenvman.2019.02.033
Toregas, C., Swain, R., ReVelle, C., & Bergman, L. (1971). The location of emergency service facilities. Operations Research, 19(6), 1363-1373. https://doi.org/10.1287/opre.19.6.1363
United Nations Environment Programme. (2023). The Sustainable Development Goals Report 2023: Special Edition. https://unstats.un.org/sdgs/report/2023/The-Sustainable-Development-Goals-Report-2023.pdf
Wang, Z., Duan, Y., & Huo, J. (2021). Maximal covering location problem of smart recycling infrastructure for recyclable waste in an uncertain environment. Waste Management & Research: The Journal for a Sustainable Circular Economy, 39(2), 396-404. https://doi.org/10.1177/0734242X20967090
Yong, Z. J., Bashir, M. J. K., Ng, C. A., Sethupathi, S., Lim, J. W., & Show, P. L. (2019). Sustainable waste-to-energy development in Malaysia: Appraisal of environmental, financial, and public issues related with energy recovery from municipal solid waste. Processes, 7(10), 676. https://doi.org/10.3390/pr7100676
Zaharudin, Z. A., Shuib, A., Hadianti, R., & Rodzi, Z. M. (2023). Towards sustainable city: A covering model for recycling facility location-allocation in Nilai, Malaysia. Science and Technology Indonesia, 8(4), 570-578. https://doi.org/10.26554/sti.2023.8.4.570-578
Zaharudin, Z. A., Shuib, A., Hadianti, R., & Rodzi, Z. M. (2024). A preliminary model for recycling facility location-allocation problem. AIP Conference Proceedings, 2895(1), 70001. https://doi.org/10.1063/5.0193367
ISSN 0128-7680
e-ISSN 2231-8526