Challenges and Priorities of Municipal Solid Waste Management in Cambodia
Abstract
:1. Introduction
2. Methodologies and Search Strategy
3. MSW Generation, Characteristics and Composition
3.1. MSW Generation
3.2. MSW Characteristics and Composition
4. Legislation and Policy Framework
5. Institutional Arrangement
6. MSW Management and Treatment
6.1. Generation and Storage
6.2. Collection and Transportation
6.3. Landfill and Disposal
6.4. Recycling
6.5. Composting
6.6. Open Burning
6.7. Incineration
7. Management and Treatment of MSW in Other Countries
7.1. The United States of America
7.2. Japan
7.3. China
7.4. India
7.5. Indonesia
7.6. Thailand
7.7. Vietnam
8. Challenges and Priorities
- (1)
- Competitive service provision. To avoid the environmental burden from uncollected waste and to increase the efficiency of the MSW collection service, the competitive tendering with a clear operational plan should be transparently performed, and the short-term contract adopted. Evidence of the deficiency of service provision was seen in Phnom Penh, where the service was monopolized for a long-term contract (49 years) [38];
- (2)
- Redefine service fee. Willingness to pay for the service is key to a successful MSW management system. A standard service fee setting model should be advised, notwithstanding different urban areas, and the successful experience from other countries should not be overlooked. i.e., “pay-as-you-throw” adopted in Japan, Korea, and Vietnam, or waste/sanitation tax in Switzerland and India;
- (3)
- Stakeholder engagement. Sustainable waste management cannot be achieved without involvement from all stakeholders, including the national government in developing policy and strategy frameworks, sub-national authorities in implementing the policy and management of the system, the private sector in providing the service, development partners in conducting research and development and providing financial support, and residents in waste separation;
- (4)
- Capacity building and awareness-raising. The participation of local people is a driving force in achieving the 3Rs strategy by reducing waste disposal and sorting out waste for recycling. Hence, environmental education is vital for both formal and informal education systems. Informal education can be made through environmental campaigns, media, and social media, while formal education can be made by integrating environmental education into the school curriculum. An incentive program should also be introduced, for example, the bonus point incentive system, implemented in some cities of China;
- (5)
- Promoting resource recovery. In a circular economy, waste is regarded as a resource. The private sector and local people get involved by reducing consumption and waste generation, reusing materials, recycling (recyclable and compostable), and recovering energy from the remaining materials before they up in landfill. The existing informal recyclers should be promoted and upgraded. WTE incineration has also been seen as an alternative to landfill. It diverts the waste that remains after recycling into energy or steam, reducing the environmental burden at the landfills and minimizing the investment in landfill construction. However, this system is highly technological and requires a huge investment cost, which requires a subsidy from the government to secure its sustainability;
- (6)
- Community-based solid waste management formation. Cambodia already has many forms of community-based organizations. Therefore, it is important to learn about the experience of Thailand and Indonesia in improving waste recycling and management via waste banks. The potential application of waste banks should be in schools, pagodas, communities, or a combination thereof;
- (7)
- Formulation of incentive provision. An enabling environment should be created for the MSW management sector by regulating incentive-supporting policy and strategy. Several incentive mechanisms include capital cost subsidy, import tax exemption, tax breaks, material bans, and material controls [1];
- (8)
- Application of advanced digital technologies in MSW management. The use of digital technology offers a new generation approach to improving waste management systems effectively. Artificial Intelligence (AI) has been seen as a powerful technology increasingly attaining popularity and application in many sectors, including MSW management [131]. The emerging technologies have been applied in many areas, including waste generation, bin level monitoring (Internet of Things), waste collection and vehicle route, waste sorting, waste treatment, and waste management planning [132]. Incorporating AI in MSW infrastructure has been successful in many developed countries in Europe, Asia, and America to increase the recycling rate, minimize labor, reduce cost, maximize efficiency, and improve management methods [131,132]. Hence, shifting conventional MSW management methods to AI-based systems should be an option for Cambodia to foster its circular economy strategy in the industry 4.0 era.
- (9)
- Enhancement of data collection. The unavailability of data is the critical barrier to developing management systems, designing treatment facilities, and financial resources allocation. Hence, to help the government and private sector develop a strong management plan, great efforts should be made to collect such extensive data and make them publicly available. The research and development on this topic should also be accelerated.
9. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Acknowledgments
Conflicts of Interest
References
- Modak, P.; Pariatamby, A.; Seadon, J.; Bhada-Tata, P.; Borongan, G.; Thawn, N.S.; Lim, M.B. Asia Waste Management Outlook. 2017. Available online: https://wedocs.unep.org/handle/20.500.11822/27289?show=full (accessed on 15 December 2021).
- Ferronato, N.; Torretta, V.; Ragazzi, M.; Rada, E.C. Waste mismanagement in developing countries: A case study of environmental contamination. UPB Sci. Bull. Ser. D Mech. Eng. 2017, 79, 185–196. [Google Scholar]
- Batista, M.; Caiado, R.G.G.; Quelhas, O.L.G.; Lima, G.B.A.; Filho, W.L.; Yparraguirre, I.T.R. A framework for sustainable and integrated municipal solid waste management: Barriers and critical factors to developing countries. J. Clean. Prod. 2021, 312, 127516. [Google Scholar] [CrossRef]
- Khan, A.H.; López-Maldonado, E.A.; Khan, N.A.; Villarreal-Gómez, L.J.; Munshi, F.M.; Alsabhan, A.H.; Perveen, K. Current solid waste management strategies and energy recovery in developing countries—State of art review. Chemosphere 2021, 291, 133088. [Google Scholar] [CrossRef]
- Kaza, S.; Yao, L.; Bhada-Tata, P.; Van, W.F. What a Waste 2.0: A Global Snapshot of Solid Waste Management to 2050. 2018. Available online: https://openknowledge.worldbank.org/handle/10986/30317 (accessed on 8 November 2021).
- Tang, Y.; Huang, Q.; Sun, K.; Chi, Y.; Yan, J. Co-pyrolysis characteristics and kinetic analysis of organic food waste and plastic. Bioresour. Technol. 2018, 249, 16–23. [Google Scholar] [CrossRef] [PubMed]
- Godlove, C.; Pak, K. Scoping Study Report on Municipal Solid Waste Management in Kep Province. 2020. Available online: https://asiafoundation.org/wp-content/uploads/2020/09/Cambodia_Scoping-Study-Report-on-Solid-Waste-Management-in-Kep-Province_August-2020_EN_.pdf (accessed on 24 November 2011).
- Sethy, S.; Sothun, C.; Wildblood, R. Municipal solid waste management in Cambodia. In Municipal Solid Waste Management in Asia Pacific Islands—Challenges and Strategic Solution; Pariatamby, A., Tanaka, M., Eds.; Springer: Singapore, 2014; pp. 77–94. [Google Scholar] [CrossRef]
- Akenji, L.; Bengtsson, M.; Kato, M.; Hengesbaugh, M.; Hotta, Y.; Aoki-Suzuki, C.; Gamaralalage, P.J.D.; Liu, C. Circular Economy and Plastics: A Gap-Analysis in ASEAN Member States; Association of Southeast Asian Nations (ASEAN): Jakarta, Indonesia, 2019; pp. 1–92. [Google Scholar]
- Kham, V.; Heilmann, D. Waste Management Challenges in Cambodia and Experiences from Other Countries. 2015. Available online: https://pic.org.kh/images/2015Research/20160429_Waste%20Management%20Challenges%20in%20Cambodia_EN.pdf (accessed on 24 July 2021).
- Gupta, N.; Yadav, K.K.; Kumar, V. A review on current status of municipal solid waste management in India. J. Environ. Sci. 2015, 37, 206–217. [Google Scholar] [CrossRef]
- JICA. Study on Solid Waste Management in the Municipality of Phnom Penh in the Kingdom of Cambodia; JICA: Phnom Penh, Cambodia, 2005; Available online: https://openjicareport.jica.go.jp/pdf/11784444_01.pdf (accessed on 18 October 2021).
- Seng, B.; Kaneko, H.; Hirayama, K.; Katayama-Hirayama, K. Municipal solid waste management in Phnom Penh, capital city of Cambodia. Waste Manag. Res. 2010, 29, 491–500. [Google Scholar] [CrossRef]
- Minghua, Z.; Xiumin, F.; Rovetta, A.; Qichang, H.; Vicentini, F.; Bingkai, L.; Giusti, A.; Yi, L. Municipal solid waste management in Pudong New Area, China. Waste Manag. 2009, 29, 1227–1233. [Google Scholar] [CrossRef]
- Al Rayaan, M.B. Recent advancements of thermochemical conversion of plastic waste to biofuel—A review. Clean Eng. Technol. 2021, 2, 100062. [Google Scholar] [CrossRef]
- Jadhav, E.B.; Sankhla, M.S.; Bhat, R.A.; Bhagat, D.S. Microplastics from food packaging: An overview of human consumption, health threats, and alternative solutions. Environ. Nanotechnol. Monit. Manag. 2021, 16, 100608. [Google Scholar] [CrossRef]
- Spoann, V.; Fujiwara, T.; Seng, B.; Lay, C.; Yim, M. Assessment of public-private partnership in municipal solid waste management in Phnom Penh, Cambodia. Sustainability 2019, 11, 1228. [Google Scholar] [CrossRef] [Green Version]
- Royal Government of Cambodia (RGC). Policy on Municipal Solid Waste Management 2020–2030; Royal Government of Cambodia (RGC): Phnom Penh, Cambodia, 2021. (In Khmer) [Google Scholar]
- Mongtoeun, Y. Household solid waste generation and socioeconomic factors in the capital city of Cambodia. Int. J. Environ. Sci. Nat. Resour. 2019, 20, 24–27. [Google Scholar] [CrossRef]
- Chiemchaisri, C.; Juanga, J.P.; Visvanathan, C. Municipal solid waste management in Thailand and disposal emission inventory. Environ. Monit Assess. 2007, 135, 13–20. [Google Scholar] [CrossRef] [PubMed]
- Saeed, M.O.; Hassan, M.N.; Mujeebu, M.A. Assessment of municipal solid waste generation and recyclable materials potential in Kuala Lumpur, Malaysia. Waste Manag. 2009, 29, 2209–2213. [Google Scholar] [CrossRef] [PubMed]
- Demirarslan, K.O.; Yener, I. Municipal solid waste in Turkey and its relationship with the population. Res. Ecol. 2021, 3, 31–40. [Google Scholar] [CrossRef]
- Sethy, S. State of the 3Rs in Asia and the Pacific; The Kingdom of Cambodia: Phnom Penh, Cambodia, 2017; Available online: https://www.iges.or.jp/en/pub/cambodia-country-chapter-state-3rs-asia-and/en (accessed on 27 September 2021).
- NCSD/MoE. First Biennial Update Report of the Kingdom of Cambodia to the United Nations Framework Convention on Climate Change. 2020. Available online: https://unfccc.int/documents/232019 (accessed on 12 October 2021).
- World Bank. Cambodia: Achieving the Potential of Urbanization. 2018. Available online: https://openknowledge.worldbank.org/bitstream/handle/10986/30867/127247-REVISED-CambodiaUrbanizationReportEnfinal.pdf?sequence=1&isAllowed=y (accessed on 10 November 2021).
- World Bank Open Data. Available online: https://data.worldbank.org/ (accessed on 10 November 2021).
- Ministry of Environment (MoE). Municipal Solid Waste Generation in the Municipality and Provinces of Cambodia, 2008–2022; Ministry of Environment (MoE): Phnom Penh, Cambodia, 2021; Unpublished work.
- Kawai, K.; Tasaki, T. Revisiting estimates of municipal solid waste generation per capita and their reliability. J. Mater. Cycles Waste Manag. 2016, 18, 1–13. [Google Scholar] [CrossRef] [Green Version]
- PPCA; IGES; Nexus; Environment UN; CCCA. Phnom Penh Waste Management Strategy and Action Plan 2018–2035; Phnom Penh Capital Administration: Phnom Penh, Cambodia, 2018. [Google Scholar]
- UNEP. Summary Report: Waste Management in ASEAN Countries. 2017. Available online: https://www.unep.org/resources/report/waste-management-asean-countries-summary-report (accessed on 10 December 2021).
- Sankoh, F.P.; Yan, X.; Conteh, A.M.H. A situational assessment of socioeconomic factors affecting solid waste generation and composition in Freetown, Sierra Leone. J. Environ. Prot. 2012, 3, 563–568. [Google Scholar] [CrossRef] [Green Version]
- Hoornweg, D.; Bhada-Tata, P. What a Waste: A Global Review of Solid Waste Management; World Bank: Washington, DC, USA, 2012; Available online: https://openknowledge.worldbank.org/handle/10986/17388 (accessed on 8 November 2021).
- Seng, B.; Fujiwara, T.; Seng, B. Suitability assessment for handling methods of municipal solid waste. Glob. J. Environ. Sci. Manag. 2018, 4, 113–126. [Google Scholar] [CrossRef]
- Sang-Arun, J.; Heng, C.K.; Al, E. A Guide for Technology Selection and Implementation of Urban Organic Waste Utilisation Projects in Cambodia. 2011. Available online: https://www.files.ethz.ch/isn/143827/IGES2011-Promoting-OWU-Cambodia-printed.pdf (accessed on 28 November 2011).
- ADB. Technical Feasibility for Pursat Solid Waste Management. 2019. Available online: https://www.adb.org/sites/default/files/linked-documents/42285-013-sd-11.pdf (accessed on 2 May 2021).
- ADB. Technical Feasibility Studies: Second Urban Environmental Management in the Tonle Sap Basin project. 2018. Available online: https://www.adb.org/projects/50102-002/main (accessed on 24 November 2020).
- Abdel-Shafy, H.I.; Mansour, M.S.M. Solid waste issue: Sources, composition, disposal, recycling, and valorization. Egypt J. Pet. 2018, 27, 1275–1290. [Google Scholar] [CrossRef]
- Kum, V.; Sharp, A.; Harnpornchai, N. Improving the solid waste management in Phnom Penh city: A strategic approach. Waste Manag. 2005, 25, 101–109. [Google Scholar] [CrossRef]
- Royal Government of Cambodia (RGC). Law on Natural Resource Management and Environmental Protection; Royal Government of Cambodia (RGC): Phnom Penh, Cambodia, 1996. (In Khmer)
- Royal Government of Cambodia (RGC). Sub-Decree No. 36 on Solid Waste Management; Royal Government of Cambodia (RGC): Phnom Penh, Cambodia, 1999. (In Khmer)
- Royal Government of Cambodia (RGC). Sub-Decree No. 113 on Municipal Solid Waste Management; Royal Government of Cambodia (RGC): Phnom Penh, Cambodia, 2015. (In Khmer)
- Royal Government of Cambodia (RGC). Declaration No. 387 on Permit Standard Level of Discharging Pollutant or Hazardous Substance; Royal Government of Cambodia (RGC): Phnom Penh, Cambodia, 2015. (In Khmer)
- Royal Government of Cambodia (RGC). Inter-Ministerial Declaration No. 73 on Usage of Environmental Sanitation Service Fund in City Center of Sub-National Administration; Royal Government of Cambodia (RGC): Phnom Penh, Cambodia, 2015. (In Khmer)
- Min, M. Survey Report on Waste Management Practices at Municipality/District Level. 2016. Available online: https://www.kas.de/en/web/kambodscha/single-title/-/content/umfragebericht-zu-abfallentsorgungsverfahren-auf-gemeinde-und-bezirksebene1 (accessed on 1 July 2020).
- Royal Government of Cambodia (RGC). Declaration No. 447 on Battery Wastes; Royal Government of Cambodia (RGC): Phnom Penh, Cambodia, 2016. (In Khmer)
- Ministry of Environment (MoE). Annual Report: Environmental Protection 2021; Ministry of Environment (MoE): Phnom Penh, Cambodia, 2021; Unpublished work. (In Khmer) [Google Scholar]
- Royal Government of Cambodia (RGC). Sub-Decree No. 168 on Management of Plastic Bags; Royal Government of Cambodia (RGC): Phnom Penh, Cambodia, 2017. (In Khmer)
- UNDP. Combatting Plastic Bag Use in Cambodia: Policy Report and Suggested Regulations. 2019. Available online: https://anyflip.com/hralr/mfuf/basic (accessed on 29 November 2021).
- Singh, R.K.; Gamaralalage, P.J.D.; Yagasa, R.; Onogawa, K. State of Waste Management in Phnom Penh, Cambodia. 2018. Available online: https://www.iges.or.jp/en/pub/state-waste-management-phnom-penh-cambodia/en (accessed on 11 August 2021).
- Royal Government of Cambodia (RGC). Sub-Decree No. 25 on Municipal Solid Waste Management Committee; Royal Government of Cambodia (RGC): Phnom Penh, Cambodia, 2021. (In Khmer)
- Curea, C. Sustainable societies and municipal solid waste management in Southeast Asia. In Sustainable Asia; The European Union: Singapore, 2017; pp. 391–415. [Google Scholar] [CrossRef]
- Sarkodie, S.A.; Owusu, P.A. Global assessment of environment, health and economic impact of the novel coronavirus (COVID-19). Environ. Dev. Sustain. 2021, 23, 5005–5015. [Google Scholar] [CrossRef]
- Valkenburg, C.; Gerber, M.; Walton, C.; Jones, S.; Thompson, B.; Stevens, D. Municipal Solid Waste (MSW) to Liquid Fuels Synthesis, Volume 1: Availability of Feedstock and Technology; The National Technical Information Service: Springfield, VA, USA, 2008; pp. 1–43. [Google Scholar]
- Phnom Penh Administration. Guidance on municipal solid waste management in Phnom Penh (In Khmer). 2021. Available online: https://phnompenh.gov.kh/news-press-releases/post/ann16921e/ (accessed on 16 September 2021).
- Spoann, V.; Nitivattananon, V.; Nurul Amin, A.T.M. Assessment of solid waste contracted services: Case study of solid waste collection in Siem Reap Town, Cambodia. In Proceedings of the International Conference on Integrated Solid Waste Management in Southeast Asia, Siem Reap, Cambodia, 5–7 July 2005; Asian Institute of Technology: Bangkok, Thailand, 2005. [Google Scholar]
- National Institute of Statistic (NIS). General Population Census of the Kingdom of Cambodia 2019. 2020. Available online: https://www.nis.gov.kh/index.php/km/74-general-population-census-of-cambodia-census-2019 (accessed on 9 December 2021).
- Spoann, V.; Fujiwara, T.; Seng, B.; Lay, C. Municipal solid waste management: Constraints and opportunities to improve capacity of local government authorities of Phnom Penh Capital. Waste Manag. Res. 2018, 36, 985–992. [Google Scholar] [CrossRef] [PubMed]
- Royal Government of Cambodia (RGC). Sub-Decree No.189 on the Establishment of the Enterprise for Managing Transfer Stations and Landfill for Solid Waste; Royal Government of Cambodia (RGC): Phnom Penh, Cambodia, 2020. (In Khmer)
- Dangkor Landfill Authority. Monthly Waste Disposal Data; Dangkor Landfill Authority: Phnom Penh, Cambodia, 2021; Unpublished work. [Google Scholar]
- Lisa, D. Working Politically in Practice Series-Case Study No. 8-Reforming Solid Waste Management Phnom Penh; The Asia Foundation and the Overseas Development Institute: San Francisco, CA, USA, 2016; pp. 1–11. [Google Scholar]
- Sothun, C. Situation of e-waste management in Cambodia. Procedia Environ. Sci. 2012, 16, 535–544. [Google Scholar] [CrossRef] [Green Version]
- EuroCham Cambodia. Partnership Ready Cambodia: Waste Management. 2019. Available online: https://www.giz.de/en/downloads/GBN_Sector%20Brief_Kambodscha_Waste_E_WEB.pdf (accessed on 1 July 2020).
- Seng, B.; Hirayama, K.; Katayama-Hirayama, K.; Ochiai, S.; Kaneko, H. Scenario analysis of the benefit of municipal organic-waste composting over landfill, Cambodia. J. Environ. Manag. 2013, 114, 216–224. [Google Scholar] [CrossRef] [PubMed]
- Dominish, E.; Retamal, M.; Wakefield-Rann, R.; Florin, N. Environmentally Responsible Trade in Waste Plastic Report 1: Investigating the Links between Trade and Marine Plastic Pollution; Prepared for the Department of Agriculture, Water, and the Environment, June 2020; Institute for Sustainable Futures: Ultimo, Australia, 2020. Available online: https://www.awe.gov.au/sites/default/files/documents/ert-waste-plastics-report-1.pdf (accessed on 29 November 2021).
- Waste Management: A New Recycling Industry in the Making? Available online: https://oborcapital.com/newsold/tag/waste+management (accessed on 5 October 2021).
- Scavengers: An Overlooked Backbone of Cambodia’s Waste Management. Available online: https://vodenglish.news/scavengers-an-overlooked-backbone-of-cambodias-waste-management/ (accessed on 5 October 2021).
- Nissim, I.; Shohat, T.; Inbar, Y. From dumping to sanitary landfills—Solid waste management in Israel. Waste Manag. 2005, 25, 323–327. [Google Scholar] [CrossRef]
- Behrooznia, L.; Sharifi, M.; Alimardani, R.; Mousavi-Avval, S.H. Sustainability analysis of landfilling and composting-landfilling for municipal solid waste management in the north of Iran. J. Clean. Prod. 2018, 203, 1028–1038. [Google Scholar] [CrossRef]
- Lou, X.F.; Nair, J. The impact of landfilling and composting on greenhouse gas emissions—A review. Bioresour. Technol. 2009, 100, 3792–3798. [Google Scholar] [CrossRef]
- Hoklis, C.; Sharp, A. Greenhouse gas emission from municipal solid waste in Phnom Penh, Cambodia. GMSARN Int. J. 2014, 8, 73–78. [Google Scholar]
- Pikoń, K.; Gaska, K. Greenhouse gas emission mitigation relevant to changes in municipal solid waste management system. J. Air Waste Manag. Assoc. 2010, 60, 782–788. [Google Scholar] [CrossRef]
- Gaeta-Bernardi, A.; Parente, V. Organic municipal solid waste (MSW) as feedstock for biodiesel production: A financial feasibility analysis. Renew. Energy 2016, 86, 1422–1432. [Google Scholar] [CrossRef] [Green Version]
- Rathana, K. Solid Waste Management in Cambodia. 2009. Available online: https://cicp.org.kh/wp-content/uploads/2021/02/CICP-Working-Paper-27-solid-waste-management_Edited.pdf (accessed on 23 December 2021).
- Tozlu, A.; Özahi, E.; Abuşoğlu, A. Waste to energy technologies for municipal solid waste management in Gaziantep. Renew. Sustain. Energy Rev. 2016, 54, 809–815. [Google Scholar] [CrossRef]
- Ghosh, P.; Sengupta, S.; Singh, L.; Sahay, A. Life cycle assessment of waste-to-bioenergy processes: A review. In Bioreactors: Sustainable Design and Industrial Applications in Mitigation of GHG Emissions; Singh, L., Yousuf, A., Mahapatra, D.M., Eds.; Elsevier: Amsterdam, The Netherlands, 2020; pp. 105–122. [Google Scholar] [CrossRef]
- Global Green Growth Institute (GGGI). Large-Scale Management of Unsegregated Municipal Solid Waste in Phnom Penh: A Cost Comparison of Three Options. 2020. Available online: https://gggi.org/report/large-scale-management-of-unsegregated-municipal-solid-waste-in-phnom-penh-a-cost-comparison-of-three-options/ (accessed on 25 November 2021).
- Electricite Du Cambodge (EDC). Invitation for Bid: Development of a 60 MW Solar Plant Project in Kampong Chhnang Province, Cambodia 2019. Available online: https://www.edc.com.kh/images/INVITATION%20FOR%20BID%2060MW%20solar.pdf (accessed on 25 November 2021).
- Sajith, E. Recycling and resource recovery through industrial symbiosis-garment industry case study. In Proceedings of theWaste Submit 2021, Phnom Penh, Cambodia, 2–4 September 2021. [Google Scholar]
- United States Environmental Protection Agency (USEPA). Advancing Sustainable Materials Management: 2015 Fact Sheet. 2018. Available online: https://www.epa.gov/sites/production/files/2016-11/documents/2014_smmfactsheet_508.pdf (accessed on 26 June 2022).
- Central Public Health and Environmental Engineering Organisation (CPHEEO). Municipal Solid Waste Management Manual-Part II: The Manual. 2016. Available online: http://cpheeo.gov.in/upload/uploadfiles/files/Part2.pdf (accessed on 28 June 2022).
- Mukherjee, C.; Denney, J.; Mbonimpa, E.G.; Slagley, J.; Bhowmik, R. A review on municipal solid waste-to-energy trends in the USA. Renew. Sustain. Energy Rev. 2020, 119, 109512. [Google Scholar] [CrossRef]
- Singh, S.; Singh, J. Solid waste management in India: A review. Int. J. Eng. Sci. Technol. 2021, 13, 54–60. [Google Scholar] [CrossRef]
- GIZ. Country Profile: Indonesia. Managing Municipal Solid Waste and Packing Waste. 2018. Available online: https://www.giz.de/de/downloads/giz2018_Indonesia-Country-Profile_web.pdf. (accessed on 28 June 2022).
- Pollution Control Department (PCD). Thailand State of Pollution Report 2016. 2017. Available online: http://infofile.pcd.go.th/mgt/Report_Eng2553.pdf. (accessed on 26 June 2022).
- Sukholthaman, P.; Sharp, A. A system dynamics model to evaluate effects of source separation of municipal solid waste management: A case of Bangkok, Thailand. Waste Manag. 2016, 52, 50–61. [Google Scholar] [CrossRef] [PubMed]
- Green Investment Group. Financing Waste Infrastructure in Indonesia. 2020. Available online: https://www.greeninvestmentgroup.com/assets/gig/what-we-do/climate-finance-advisory/Waste-in-Indonesia_A4.pdf (accessed on 26 June 2022).
- Zhu, Y.; Zhang, Y.; Luo, D.; Chong, Z.; Li, E.; Kong, X. A review of municipal solid waste in China: Characteristics, compositions, influential factors and treatment technologies. Environ. Dev. Sustain. 2021, 23, 6603–6622. [Google Scholar] [CrossRef]
- Kurniawan, T.A.; Liang, X.; O’Callaghan, E.; Goh, H.; Othman, M.H.D.; Avtar, R.; Kusworo, T.D. Transformation of solid waste management in China: Moving towards Sustainability through Digitalization-Based Circular Economy. Sustainability 2022, 14, 2374. [Google Scholar] [CrossRef]
- Kumar, A.; Agrawal, A. Recent trends in solid waste management status, challenges, and potential for the future Indian cities—A review. Curr. Res. Environ. Sustain. 2020, 2, 100011. [Google Scholar] [CrossRef]
- The World Bank. Solid and Industrial Hazardous Waste Management Assessment—Options and Action Area to Implement the National Strategy. 2018. Available online: https://documents1.worldbank.org/curated/en/352371563196189492/pdf/Solid-and-industrial-hazardous-waste-management-assessment-options-and-actions-areas.pdf. (accessed on 25 June 2022).
- Tong, Y.D.; Huynh, T.D.X.; Khong, T.D. Understanding the role of informal sector for sustainable development of municipal solid waste management system: A case study in Vietnam. Waste Manag. 2021, 124, 118–127. [Google Scholar] [CrossRef]
- Global Green Growth Institute (GGGI). Unlocking Potential for Large-Scale Waste Treatment Plants with a Focus on Energy Recovery and Modular Project Design. Lessons learned from Cambodia, Lao PRD, and Vietnam. 2022. Available online: https://gggi.org/site/assets/uploads/2022/04/Technical-Paper-No.24_Spread_v1.pdf. (accessed on 25 February 2022).
- Themelis, N.J.; Mussche, C. Municipal solid waste management and waste- to-energy in the United States, China and Japan. In Proceedings of the 2nd International Academic Symposym on Enhanced Landfill Mining, Leuven, Belgium, 14–16 June 2013. [Google Scholar]
- The World Bank Group. Urban and Rural Municipal Solid Waste in China and the Circular Economy. 2019. Available online: https://openknowledge.worldbank.org/bitstream/handle/10986/33838/Urban-and-Rural-Municipal-Solid-Waste-in-China-and-the-Circular-Economy-A-Brief-Overview-and-Opportunities-Going-Forward.pdf?sequence=1&isAllowed=y#:~:text=In%202017%2C%20according%20to%20China’s,pe (accessed on 26 June 2022).
- MA, K.; John Taylor, W. A comparative study of solid waste management in the United States, Europe and Asia. Ann. Civ. Environ. Eng. 2020, 4, 3–11. [Google Scholar] [CrossRef]
- Ros, B. The effect of overseas educational experience on pro-environmental practices: Evidence from Cambodian academic s(cholars. J. Environ. Prot. 2021, 12, 824–854. [Google Scholar] [CrossRef]
- Honma, S.; Hu, J.L. Cost efficiency of recycling and waste disposal in Japan. J. Clean. Prod. 2021, 284, 125274. [Google Scholar] [CrossRef]
- Ministry of the Environment Government of Japan. Municipal Solid Waste Emissions and Disposal in FY2019. 2021. Available online: https://www.env.go.jp/en/headline/2504.html (accessed on 4 December 2021).
- Amemiya, T. Current state and trend of waste and recycling in Japan. Int J. Earth Env Sci 2018, 3, 155. [Google Scholar] [CrossRef]
- Hao, K. Study of Policies and Regulations for Waste Management in China and Potential for Application in the U.S. 2017; Earth Resource Engineering, Columbia University: New York, NY, USA, 8 May 2017. [Google Scholar]
- Ma, W.; Wenga, T.; Frandsen, F.J.; Yan, B.; Chen, G. The fate of chlorine during MSW incineration: Vaporization, transformation, deposition, corrosion and remedies. Prog. Energy Combust. Sci. 2020, 76, 100789. [Google Scholar] [CrossRef]
- Lee, R.P.; Meyer, B.; Huang, Q.; Voss, R. Sustainable waste management for zero waste cities in China: Potential, challenges and opportunities. Clean Energy 2020, 4, 169–201. [Google Scholar] [CrossRef]
- Fei, F.; Qu, L.; Wen, Z.; Xue, Y.; Zhang, H. How to integrate the informal recycling system into municipal solid waste management in developing countries: Based on a China’s case in Suzhou urban area. Resour. Conserv. Recycl. 2016, 110, 74–86. [Google Scholar] [CrossRef]
- Guo, S.; Ding, G.; Zhao, Q.; Jiang, M. Bonus point system for refuse classification and sustainable development: A study in China. Sustainability 2017, 9, 1776. [Google Scholar] [CrossRef] [Green Version]
- Ding, Y.; Zhao, J.; Liu, J.W.; Zhou, J.; Cheng, L.; Zhao, J.; Shao, Z.; Iris, Ç.; Pan, B.; Li, X.; et al. A review of China’s municipal solid waste (MSW) and comparison with international regions: Management and technologies in treatment and resource utilization. J. Clean. Prod. 2021, 293, 126144. [Google Scholar] [CrossRef]
- Kalak, T.; Cierpiszewski, R.; Ulewicz, M. High efficiency of the removal process of pb(Ii) and cu(ii) ions with the use of fly ash from incineration of sunflower and wood waste using the cfbc technology. Energies 2021, 14, 1771. [Google Scholar] [CrossRef]
- Joseph, K.; Rajendiran, S.; Senthilnathan, R.; Rakesh, M. Integrated approach to solid waste management in Chennai: An Indian metro city. J. Mater. Cycles Waste Manag. 2012, 14, 75–84. [Google Scholar] [CrossRef]
- Mani, S.; Singh, S. Sustainable municipal solid waste management in India: A policy agenda. Procedia Environ. Sci. 2016, 35, 150–157. [Google Scholar] [CrossRef]
- Singh, S. Solid Waste Management in Urban India: Imperatives for Improvement. 2020. Available online: https://www.orfonline.org/research/solid-waste-management-in-urban-india-imperatives-for-improvement-77129/ (accessed on 1 December 2021).
- Niyati, M. A comparative study of municipal solid waste management in India and Japan. J. Soc. Stu. 2015, 25, 48–61. [Google Scholar]
- Sharholy, M.; Ahmad, K.; Mahmood, G.; Trivedi, R.C. Municipal solid waste management in Indian cities—A review. Waste Manag. 2008, 28, 459–467. [Google Scholar] [CrossRef]
- Annepu, R.K. Sustainable Solid Waste Management in India. Master’s Thesis, Columbia University, New York, NY, USA, 10 January 2012. [Google Scholar]
- Dharwal, M.; Srivastava, A.K.; Sarin, V.; Gola, K.R. The state of solid waste management for sustainable development in India: Current state and future potential. Mater Today Proc. 2021; in press. [Google Scholar] [CrossRef]
- Arumdani, I.S.; Puspita, A.S.; Budihardjo, M.A. MSW handling of top 5 leading waste-producing countries in Southeast Asia. IOP Conf. Ser. Earth Environ. Sci. 2021, 896, 012003. [Google Scholar] [CrossRef]
- Sunarto, S.T. Integrated sustainable waste management in Malang City, East Java, Indonesia. AIP Conf. Proc. 2018, 1977, 030043. [Google Scholar] [CrossRef]
- Fatimah, Y.A.; Govindan, K.; Murniningsih, R.; Setiawan, A. Industry 4.0 based sustainable circular economy approach for smart waste management system to achieve sustainable development goals: A case study of Indonesia. J. Clean. Prod. 2020, 269, 122263. [Google Scholar] [CrossRef]
- Dhokhikah, Y.; Trihadiningrum, Y.; Sunaryo, S. Community participation in household solid waste reduction in Surabaya, Indonesia. Resour. Conserv. Recycl. 2015, 102, 153–162. [Google Scholar] [CrossRef]
- Budihardjo, M.A.; Ardiansyah, S.Y.; Ramadan, B.S. Community-driven material recovery facility (CdMRF) for sustainable economic incentives of waste management: Evidence from Semarang City, Indonesia. Habitat Int. 2022, 119, 102488. [Google Scholar] [CrossRef]
- Soesanto, Q.M.B.; Rachman, I.; Matsumoto, T. Community-based waste management (Waste Bank) as intention recycling behavior predictor using structural equation modeling in Semarang City, Indonesia. J. Hum. 2021, 37, 24–35. [Google Scholar]
- Wibisono, H.; Firdausi, F.; Kusuma, M.E. Municipal solid waste management in small and metropolitan cities in Indonesia: A review of Surabaya and Mojokerto. IOP Conf. Ser. Earth Environ. Sci. 2020, 447, 012050. [Google Scholar] [CrossRef] [Green Version]
- Pharino, C. Challenges for Sustainable Solid Waste Management: Lessons from Thailand; Springer: Singapore, 2017; ISBN 978-981-10-4631-5. [Google Scholar]
- Lokahita, B.; Samudro, G.; Huboyo, H.S.; Aziz, M.; Takahashi, F. Energy recovery potential from excavating municipal solid waste dumpsite in Indonesia. Energy Procedia 2019, 158, 243–248. [Google Scholar] [CrossRef]
- Thushari, I.; Vicheanteab, J.; Janjaroen, D. Material flow analysis and life cycle assessment of solid waste management in urban green areas, Thailand. Sustain. Environ. Res. 2020, 30, 21. [Google Scholar] [CrossRef]
- Thang, N.T. State of 3Rs in Asia and the Pacific-The Socialist Republic of Viet Nam. 2017. Available online: https://www.iges.or.jp/en/pub/viet-nam-country-chapter-state-3rs-asia-and/en (accessed on 2 December 2012).
- New Straits Times. Vietnam to Charge for Household Trash 2020. Available online: https://www.nst.com.my/world/region/2020/11/642811/vietnam-charge-household-trash (accessed on 11 December 2021).
- Climate and Clean Air Coalition. Solid Waste Management City Profile-Ho Chi Minh City, Vietnam. Available online: https://www.waste.ccacoalition.org/sites/default/files/files/city_profiles/City%20Profile%20Ho%20Chi%20Minh%20City.pdf (accessed on 11 December 2021).
- Sang-Arun, J.; Kim, H.C. Current Urban Organic Waste Management and Policies in Cambodia. 2011. Available online: https://www.jstor.org/stable/resrep00882.8?seq=1#metadata_info_tab_contents (accessed on 7 February 2022).
- GGGI. Phnom Penh Green City Strategic Plan 2017–2026. 2016. Available online: https://ncsd.moe.gov.kh/sites/default/files/2019-05/Phnom%20Penh%20Green%20Strategic%20Plan.pdf (accessed on 22 December 2021).
- Mohammed, M.; Shafiq, N.; Elmansoury, A.; Al-Mekhlafi, A.B.A.; Rached, E.F.; Zawawi, N.A.; Haruna, A.; Rafindadi, A.D.; Ibrahim, M.B. Modeling of 3r (reduce, reuse and recycle) for sustainable construction waste reduction: A partial least squares structural equation modeling (pls-sem). Sustainability 2021, 13, 10660. [Google Scholar] [CrossRef]
- Spoann, V. Assessment of Municipal Solid Waste Management Capacity of Local Government Authorities and Contracted Waste Collection Service: A Case Study of Phnom Penh Capital, Cambodia. Ph.D. thesis, Okayama University, Okayama, Japan, August 2019. [Google Scholar]
- Abdallah, M.; Talib, M.A.; Feroz, S.; Nasir, Q.; Abdalla, H.; Mahfood, B. Artificial intelligence applications in solid waste management: A systematic research review. Waste Manag. 2020, 109, 231–246. [Google Scholar] [CrossRef]
- Andeobu, L.; Wibowo, S.; Grandhi, S. Artificial intelligence applications for sustainable solid waste management practices in Australia: A systematic review. Sci. Total Environ. 2022, 834, 155389. [Google Scholar] [CrossRef]
Year | Population (million) a | GDP a | MSW Generation (million ton) | Per Capita c (kg/day) | |||
---|---|---|---|---|---|---|---|
Per Capita (USD) | Annual (million USD) | Annual Growth (%) | b | c | |||
2008 | 13.88 | 746 | 10,352 | 6.69 | 3.74 | 3.71 | 0.73 |
2009 | 14.09 | 738 | 10,402 | 0.09 | 3.78 | 3.79 | 0.74 |
2010 | 14.31 | 786 | 11,242 | 5.96 | 3.85 | 3.85 | 0.74 |
2011 | 14.54 | 882 | 12,830 | 7.07 | 3.91 | 3.92 | 0.74 |
2012 | 14.78 | 951 | 14,054 | 7.31 | 3.99 | 3.99 | 0.74 |
2013 | 15.03 | 1013 | 15,228 | 7.36 | 4.09 | 4.06 | 0.74 |
2014 | 15.28 | 1093 | 16,703 | 7.14 | 4.16 | 4.14 | 0.74 |
2015 | 15.52 | 1163 | 18,050 | 7.12 | 4.18 | 4.41 | 0.78 |
2016 | 15.77 | 1270 | 20,017 | 6.94 | 4.24 | 4.49 | 0.78 |
2017 | 16.01 | 1385 | 22,177 | 6.84 | - | 4.58 | 0.78 |
2018 | 16.25 | 1512 | 24,572 | 7.47 | - | 4.67 | 0.79 |
2019 | 16.49 | 1643 | 27,089 | 7.05 | - | 4.69 | 0.78 |
2020 | 16.72 | 1513 | 25,291 | −3.14 | - | 4.78 | 0.78 |
Province | Waste Composition (%) | |||||||
---|---|---|---|---|---|---|---|---|
Food Waste | Paper | Plastic | Metals | Textile | Glass | Wood and Dry Matter | Other | |
Country a | 55 | 3 | 10 | 7 | - | 8 | - | 17 |
Phnom Penh b | 49 | 7 | 21 | 1 | 8 | 1 | 7 | 6 |
Battambang c | 71 | 2 | 10 | 3 | 2 | 4 | 6 | 2 |
Siem Reap c | 54 | 6 | 11 | 1 | 3 | 3 | 11 | 11 |
Kampong Cham c | 60 | 5 | 12 | 1 | 1 | 2 | 3 | 16 |
Kampong Chhnang d | 80 | 2 | 3 | 8 | 1 | 1 | - | - |
Pursat e | 50–65 | 2–4 | 10–15 | 2–6 | 2–4 | 4–6 | 1–2 | 10–15 |
Kampong Thom f | 61 | 5.3 | 13.5 | 0.6 | 3.7 | 2.6 | 3 | 4 |
No | Province/ Municipality | Cities/ Districts (number) | Cities/ Districts with Service (number) | MSW Generation (ton/day) | MSW Collection (ton/day) | Collection Efficiency (%) | Landfill (number) | Landfill Size (ha) | Incinerator (number) |
---|---|---|---|---|---|---|---|---|---|
1 | Banteay Meanchey | 9 | 9 | 310 | 228 | 74 | 11 | 45.50 | 2 |
2 | Battambang | 14 | 11 | 365 | 234 | 64 | 14 | 13.20 | 3 |
3 | Kampong Cham | 10 | 10 | 173 | 130 | 75 | 14 | 15.50 | 1 |
4 | Kampong Chhnang | 8 | 7 | 125 | 41 | 33 | 5 | 23.90 | - |
5 | Kampong Speu | 8 | 8 | 91 | 68 | 75 | 12 | 31.10 | 4 |
6 | Kampong Thom | 9 | 8 | 146 | 49 | 34 | 10 | 75.00 | 3 |
7 | Kampot | 9 | 8 | 98 | 77 | 79 | 8 | 13.10 | - |
8 | Kandal | 11 | 11 | 561 | 518 | 92 | 10 | 31.90 | 5 |
9 | Koh Kong | 7 | 4 | 106 | 106 | 100 | 2 | 4.30 | 1 |
10 | Kratie | 6 | 4 | 101 | 40 | 40 | 6 | 44.00 | 1 |
11 | Mondul Kiri | 5 | 4 | 20 | 11 | 55 | 4 | 25.50 | 2 |
12 | Phnom Penh | 14 | 14 | 3076 | 2830 | 92 | 1 | 31.00 | 6 |
13 | Preah Vihear | 8 | 3 | 63 | 31 | 49 | 5 | 28.50 | 3 |
14 | Prey Veng | 13 | 12 | 767 | 123 | 16 | 9 | 10.00 | 2 |
15 | Pursat | 7 | 7 | 331 | 301 | 91 | 11 | 7.50 | 2 |
16 | Ratanak Kiri | 9 | 4 | 87 | 20 | 23 | 6 | 16.50 | - |
17 | Siem Reap | 12 | 11 | 316 | 234 | 74 | 11 | 25.60 | 4 |
18 | Preah Sihanouk | 5 | 5 | 285 | 273 | 96 | 2 | 100.50 | 6 |
19 | Stung Treng | 6 | 1 | 65 | 22 | 34 | 2 | 101.00 | - |
20 | Svay Rieng | 8 | 8 | 381 | 224 | 59 | 4 | 4.50 | 1 |
21 | Takeo | 10 | 10 | 166 | 32 | 19 | 7 | 4.90 | 4 |
22 | Oddar Meanchey | 5 | 5 | 106 | 41 | 39 | 4 | 19.70 | 1 |
23 | Kep | 2 | 2 | 78 | 50 | 64 | 1 | 13.39 | 1 |
24 | Pailin | 2 | 2 | 53 | 19 | 36 | 1 | 5.50 | - |
25 | Thboung Khmum | 7 | 7 | 93 | 47 | 51 | 4 | 9.50 | 2 |
Total | 204 | 175 | 7963 | 5749 | 72 | 164 | 701.09 | 54 |
Year | Junkshop (number) a | Recyclable Waste (ton) a | Revenue Recovered (USD) b | |||||
---|---|---|---|---|---|---|---|---|
Paper and Cardboard | Plastic | Aluminum | Iron | Glass | Total | |||
2010 | 259 | 26,522 | 23,583 | 8449 | 63,077 | 1367 | 122,997 | 25,578,460 |
2011 | 313 | 25,340 | 21,689 | 7297 | 68,336 | 14,469 | 137,130 | 25,415,510 |
2012 | 421 | 14,856 | 13,960 | 9866 | 30,013 | 9083 | 77,777 | 19,556,430 |
2013 | 450 | 18,004 | 12,820 | 10,113 | 19,955 | 13,652 | 74,544 | 18,559,020 |
2014 | 483 | 22,838 | 15,842 | 15,942 | 29,930 | 14,311 | 98,863 | 27,426,040 |
2015 | 439 | 14,769 | 12,678 | 100,050 | 17,184 | 9028 | 153,709 | 114,686,375 |
2016 | 445 | 33,857 | 30,907 | 87,741 | 74,328 | 20,134 | 246,967 | 115,820,995 |
2017 | 462 | 63,719 | 28,871 | 89,430 | 105,770 | 16,256 | 304,046 | 124,993,065 |
2018 | 462 | 36,829 | 23,886 | 26,664 | 45,723 | 7269 | 140,371 | 43,796,765 |
2019 | 498 | 38,180 | 27,208 | 27,973 | 46,282 | 7532 | 147,175 | 45,972,940 |
2020 | NA | NA | NA | NA | NA | NA | NA | - |
2021 | 692 | 67,701 | 36,389 | 31,120 | 64,348 | 2170 | 201,728 | 56,267,615 |
Parameters | USA | Japan | China | India | Cambodia | Indonesia | Thailand | Vietnam |
---|---|---|---|---|---|---|---|---|
Population (million) | 331.5 | 125.8 | 1410.0 | 1380.0 | 16.7 | 254.5 | 70.1 | 97.3 |
MSW generation (million ton) | 262.0 | 42.7 | 428.1 | 52.0 | 4.8 | 64 | 27.1 | 27.8 |
MSW generation rate (kg/capita/day) | 2.03 | 0.93 | 0.73 | 0.85 | 0.78 | 0.70 | 1.14 | 0.80 |
MSW management role | States | Local government | Local government | Local government | Local authorities | Local authorities | ULBs | DONRE |
MSW service provider | Local government and private | Local government and private | Local authorities | ULBs | Private | ULBs and private | LAOs | URENCO |
Source segregation rule | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes |
MSW collection model | Door to door | Collection point | Community bins | Door to door | Door to door | TPS | Curbside | Door to door |
MSW collection rate (%) | 100 | 100 | 98 | 70 | 56 | 45–50 | 80 | 85 |
Landfilling (%) | 53 | 1 | 61 | 75 | 44 | 66.4 | 29 | 63 |
Recycling (%) | 26 | 19 | 4.4 | 10–20 | 4 | 5 | 21 | 10 |
Composting (%) | 8.9 | - | 3 | - | 2 | 7 | 2 | - |
Incineration (%) | 13 | 80 | 35 | 14 | 4 | 2 | 3 | 14 |
WTE plants (number) | 86 | 358 | 69 | 11 | 0 | - | 1 | 10 |
Incentive policy | Yes | Yes | Yes | Yes | No | Yes | No | Yes |
Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations. |
© 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Share and Cite
Pheakdey, D.V.; Quan, N.V.; Khanh, T.D.; Xuan, T.D. Challenges and Priorities of Municipal Solid Waste Management in Cambodia. Int. J. Environ. Res. Public Health 2022, 19, 8458. https://doi.org/10.3390/ijerph19148458
Pheakdey DV, Quan NV, Khanh TD, Xuan TD. Challenges and Priorities of Municipal Solid Waste Management in Cambodia. International Journal of Environmental Research and Public Health. 2022; 19(14):8458. https://doi.org/10.3390/ijerph19148458
Chicago/Turabian StylePheakdey, Dek Vimean, Nguyen Van Quan, Tran Dang Khanh, and Tran Dang Xuan. 2022. "Challenges and Priorities of Municipal Solid Waste Management in Cambodia" International Journal of Environmental Research and Public Health 19, no. 14: 8458. https://doi.org/10.3390/ijerph19148458