Collection and Composting of Organic Waste: A Case Study in the City of Beira, Mozambique

Collection and Composting of Organic Waste: A Case Study in the City of Beira, Mozambique

Valentina Caminati Marco Ragazzi Silvia Silvestri Federico Berghi Dario Guirreri Ada Castellucci Isacco Rama

University of Trento, Department of Civil, Environmental and Mechanical Engineering, Italy

Fondazione Edmund Mach, Research and Innovation Centre, Italy

Progettomondo NGO, Italy

CAM - Consortium of Associations with Mozambique onlus, Italy

Available online: 
| Citation



In low-income countries, the organic is the prevalent fraction of the municipal solid waste (MSW) and its decomposition can create problems with processing, odour, biogas and leachate. On the other side it is an important resource because rich in organic matter and nutrients, which can be properly recycled. Therefore, it is essential to correctly send the organic fraction to a dedicated collection and valorisation flow. Within the LimpaMOS MOÇambique project, which is taking place in the cities of Beira and Nampula, numerous Italian and Mozambican actors from the public, private and no-profit sectors are involved. The project is mainly co-financed by the Italian Agency for Development Cooperation. One of the objectives of the project is to strengthen the proper management, separation, valorisation and disposal of MSW. The composting process is a valid solution for the treatment of the organic fraction as it allows a substantial reduction in the volume of putrescible material stored in landfills, and at the same time it makes it possible to produce and sell a good quality soil conditioner. The research work carried out in this study focuses mainly on two aims: an analysis of the management of the Composting Centre (CeCom) which will be built in the city of Beira, and an investigation on the organic waste collection by local communities. In order to move the organic fraction further away from the urban context, a sub- sequent expansion of the input matrix of the CeCom is essential. The study wants to involve the city’s second main market, some restaurants and the harbour canteen in the process of separating, collecting and managing the organic fraction. However, this expansion cannot take place without the creation of institutionalised, trained and remunerated groups of local workers.


municipal solid waste management, mozambique, low-income country, organic waste, markets, composting, dump, leachate, biogas, dump pickers


[1] Xu, J., Li, R., Shi, Y. & Deng, Y., Life cycle assessment-based optimization approaches for sustainable disposal of municipal solid waste. Sustainable Cities and Society, 79, p. 103665, 2022.

[2] Khan, A.H., López-Maldonado, E.A., Khan, N.A., Villarreal-Gomez, 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, 291, p. 133088, 2022.

[3] Kundariya, N., Mohanty, S.S., Varjani, S., Hao, Ngo, H., W.C., Wong, J., Taherzadeh, M.J., Chang, J.S., Yong, Ng. H., Kim, S.-H. & Bui, X.-T., A review on integrated approaches for municipal solid waste for environmental and economical relevance: Monitoring tools, technologies, and strategic innovations. Bioresource Technology, 342, p. 125982, 2021.

[4] Gautam, M. & Agrawal, M, Greenhouse gas emissions from municipal solid waste management: A review of global scenario. Environmental Footprints and Eco-Design of Products and Processes, pp. 123–160, 2021.

[5] Priti, M.K., Review on evolution of municipal solid waste management in India: practices, challenges and policy implications. Journal of Material Cycles and Waste Management, 21(6), pp. 1263–1279, 2019.

[6] Ferronato, N., Torretta, V., Ragazzi, M. & Rada, E.C., Waste mismanagement in developing countries: A case study of environmental contamination. UPB Scientific Bulletin, Series D: Mechanical Engineering, 79(3), pp. 185–196, 2017

[7] Friedrich, E. & Trois, C., Current and future greenhouse gas (GHG) emissions from the management of municipal solid waste in the eThekwini Municipality - South Africa. Journal of Cleaner Production, 112, pp. 4071–4083, 2016.

[8] Li, P., Li, Y.P., Huang, G.H. & Zhang, J.L., Modeling for waste management associated with environmental-impact abatement under uncertainty. Environmental Science and Pollution Research, 22(7), pp. 5003–5019, 2015.

[9] Ionescu, G., Zardi, D., Tirler, W., Rada, E.C. & Ragazzi, M., A critical analysis of emissions and atmospheric dispersion of pollutants from plants for the treatment of residual municipal solid waste. UPB Scientific Bulletin, Series D: Mechanical Engineering, 74(4), pp. 227–240, 2012.

[10] Kathiravale, S. & Muhd Yunus, M.N., Waste to wealth. Asia Europe Journal, 6(2), pp. 359–371, 2008.

[11] Cocarta, D.M., Rada, E.C., Ragazzi, M., Badea, A. & Apostol, T., A contribution for a correct vision of health impact from municipal solid waste treatments. Environmental Technology, 30(9), pp. 963–968, 2009.

[12] Suthar, S. & Singh, P. Household solid waste generation and composition in different family size and socio-economic groups: A case study. Sustainable Cities and Society, 14(1), pp. 56–63, 2015.

[13] Salvia, G., Zimmermann, N., Willan, C., Hale, J., Gitau, H., Muindi, K., Gichana, E. & Davies, M., The wicked problem of waste management: An attention-based analysis of stakeholder behaviours. Journal of Cleaner Production, 326, p. 129200, 2021.

[14] da Silva, C.L., Weins, N. & Potinkara, M., Formalizing the informal? A perspective on informal waste management in the BRICS through the lens of institutional economics. Waste Management, 99, pp. 79–89, 2019.

[15] Idowu, I.A., Atherton, W., Hashim, K., Kot, P., Alkhaddar, R., Alo, B.I. & Shaw, A., An analyses of the status of landfill classification systems in developing countries: Sub Saharan Africa landfill experiences. Waste Management, 87, pp. 761–771, 2019.

[16] Aparcana, S. Approaches to formalization of the informal waste sector into municipal solid waste management systems in low- and middle-income countries: Review of barriers and success factors. Waste Management, 61, pp. 593–607, 2017.

[17] Guerrero, L.A., Maas, G. & Hogland, W. Solid waste management challenges for cities in developing countries. Waste Management, 33(1), pp. 220–232, 2013.

[18] Mupara, S.W., Nkuba, M.R. & Gwebu, T.D., Intra-urban patterns of domestic solid waste recycling in sub-Saharan Africa: towards an exploratory search for insights in Gaborone, Botswana. Geo Journal, 83(5), pp. 967–982, 2018.

[19] Kubanza, N.S. & Simatele, D., Social and environmental injustices in solid waste management in sub-Saharan Africa: a study of Kinshasa, the Democratic Republic of Congo. Local Environment, 21(7), pp. 866–882, 2016.

[20] Couth, R. & Trois, C., Effective waste management through composting in Africa, Waste Management, 32(12), pp. 2518–2525, 2012.

[21] Kaza, S., Yao, L.C, Bhada-Tata, P., Van Woerden, F., What a Waste 2.0: A Global Snapshot of Solid Waste Management to 2050, World Bank: Washington, pp. 1–295, 2018.

[22] Gorelick, J., Supporting the future of municipal bonds in sub-Saharan Africa: the centrality of enabling environments and regulatory frameworks. Environment and Urbanization, 30(1), pp. 103–122, 2018.

[23] Lodi, J., A critical analysis of regional planning in South Africa in the 21st century, WIT Transactions on Ecology and the Environment, 93, pp. 251–260, 2006.

[24] IIED, Urbanization, Gender and Urban Poverty: Paid work and Unpaid Carework in the City, International Institute for Environment and Development: United Nations Population Fund, 2012.

[25] Human Development Index (HDI). United Nations Development Programme, Accessed on: 14 Dec. 2021.

[26] The World Bank in Mozambique. The World Bank, Accessed on: 14 Dec. 2021.

[27] Data Bank, World Development Indicators. The World Bank, Accessed on: 14 Dec. 2021.

[28] Anuário Estatístico 2020 Província de Sofala. Instituto Nacional de Estatística, Delegação Provincial de Sofala, Accessed on: 15 Dec. 2021

[29] Gani, A.H.A., Aderoju, O.M., Dias, A.G., Monjane, A.A.R. Improving the attitude and reaction towards municipal solid waste management in Mozambique, WIT Transactions on Ecology and the Environment, 247, pp. 47-56, 2020.

[30] Gani, A.H.A., Dias, A.G., Monjane, A.A.R. Impact of gross domestic product change on municipal solid waste generation in Maputo, Mozambique, WIT Transactions on Ecology and the Environment, 247, pp. 15-24, 2020.

[31] Sallwey, J., Hettiarachchi, H., Hülsmann, S. Challenges and opportunities in municipal solid waste management in Mozambique: A review in the light of nexus thinking, AIMS Environmental Science, 4(5), pp. 621-639, 2017.

[32] Z hang, Y., Ning, X., Li, Y., Wang, J., Cui, H., Meng, J., Teng, C., Wang, G., Shang, X. Impact assessment of odor nuisance, health risk and variation originating from the landfill surface, Waste Management, 126, pp. 771-780, 2021.

[33] Ali, Q.H., Sugihen, S.R., Munawar, E., Adisalamun The Effect of Leachate Recirculation on the Greenhouse Gases Emission from Municipal Solid Waste (MSW) Landfill in Tropical Climate Region, Proceedings of the IOP Conference Series: Materials Science and Engineering, 778(1),012138, 2020.

[34] Chen, Y.M., Zhan, L.T., Xu, X.B., Liu, H.L. Geo-environmental problems in landfills of MSW with high organic content. Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering: Challenges and Innovations in Geotechnics, pp. 3009-3012, 2013.

[35] Yang, N., Zhang, H., Shao, L.-M., Lü, F., He, P.-J. Greenhouse gas emissions during MSW landfilling in China: Influence of waste characteristics and LFG treatment measures, Journal of Environmental Management, 129, pp. 510-521, 2013

[36] Guirreri, D., Silvestri, S., Cristoforetti, A., Rama, I., Giurea, R., Magaril, E., Rada, E.C. Composting strategy for developing cities: A case study of Beira, Mozambique,. WIT Transactions on Ecology and the Environment, 247, pp. 69-79, 2020

[37] Sarmento dos Muchangos, L., Tokai, A., & Hanashima, A., Greenhouse gas emissions and cost assessments of municipal solid waste treatment and final disposal in Maputo City, Environment, Development and Sustainability, 21, 145–163, 2019.

[38] Scarlat, N., Motola, V., Dallemand, J. F., Monforti-Ferrario, F., & Mofor, L., Evaluation of energy potential of municipal solid waste from African urban areas, Renewable and Sustainable Energy Reviews, 50, 1269-1286, 2015

[39] Ragazzi, M., Maniscalco, M., Torretta, V., Ferronato, N., Rada, E.C. Anaerobic digestion as sustainable source of energy: A dynamic approach for improving the recovery of organic waste. Energy Procedia, 119, pp. 602-614, 2017.

[40] Andreottola, G., Ragazzi, M., Foladori, P., Villa, R., Langone, M., Rada, E.C. The unit integrated approach for OFMSW treatment. UPB Scientific Bulletin, Series C: Electrical Engineering, 74(1), pp. 19-26, 2012.

[41] Tas, A. and Belon, A. A Comprehensive Review of the Municipal Solid Waste Sector in Mozambique, Carbon Africa Limited, Nairobi, pp. 1-80, 2014.

[42] Dziedzic, K., Łapczynska-Kordon, B., Malinowski, M., Niemiec, M., Sikora, J. Impact of aerobic biostabilisation and biodrying process of municipal solid waste on minimisation of waste deposited in landfills. Chemical and Process Engineering, 36(4), pp. 381-394, 2015.

[43] Stan, C., Apostol, T., Paraschiv, G., Pásztai, Z. Two solutions for MSW treatment in view of landfill minimization and energy recovery maximization. UPB Scientific Bulletin, Series D: Mechanical Engineering, 76(4), pp. 247-256, 2014.

[44] Rada, E.C., Ragazzi, M., Badea, A. MSW Bio-drying: Design criteria from A 10 years research. UPB Scientific Bulletin, Series D: Mechanical Engineering, 4(3), pp. 209-216, 2012.