Waste pickers (WPs) are essential for the circular economy and sustainability, as they help cities and producers fulfil their responsibilities, promoting recycling. However, they are usually not recognised and remunerated, despite their integration being widely advocated in the literature. Still, research is needed to identify different integration formats, actors and results worldwide, which is the aim of this article. A systematic literature review following Preferred Reporting Items for Systematic review and Meta-Analysis (PRISMA) was conducted, including journal articles and grey literature. Sixty-three documents were selected, of which 78% were about Latin America, and one unique case was from a high-income country, Canada. Integration interventions were divided into eight categories according to their characteristics: household selective collection and sorting programmes; payment for environmental services; relocation from dumpsites; extended producer responsibility systems; purchasing systems; services for the private sector; individual hiring and individual support. The results show few cases with payment for the service provided (39%) and focused on individuals instead of groups (11%). Although progress has been made, these initiatives can still be improved. This article defines the concept of WP integration and offers recommendations for enhancing outcomes. These results provide decision-makers with a range of strategies to be prepared for more inclusive waste management.
ABIHPEC (2022) Dê a mão para o futuro – Reciclagem, trabalho e renda. Relatório anual 2021. Available at: https://www.maosprofuturo.org.br/publicacoes (accessed 3 November 2024).
AnantakrishnanL (2021) Exploring Opportunities for Waste Pickers in EPR: SWaCH Cooperative’s System for Multi-Layered Packaging. June. Available at: http://globalrec.org/epr (accessed 3 November 2024).
4.
AparcanaS (2017) 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 Management61: 593–607.
5.
AparcanaSSalhoferS (2013) Application of a methodology for the social life cycle assessment of recycling systems in low income countries: Three Peruvian case studies. International Journal of Life Cycle Assessment18: 1116–1128.
6.
BarnesKBlaauwDSchenckR, et al (2022) Buyback centres in Cape Town: The key integration point between formal and informal sectors in the waste economy of the Western Cape. GeoJournal87: 2051–2065.
7.
BhaskarAChikarmaneP (2012) The story of waste and its reclaimers: organising waste collectors for better lives and livelihoods. The Indian Journal of Labour Economics55: 595–619.
8.
BiernackiPWaldorfD (1981) Snowball sampling: Problems and techniques of chain referral sampling. Sociological Methods & Research10: 141–163.
BullaJPRendonMTrencJE (2021) Policing the stigma in our waste: What we know about informal waste pickers in the global north. Local Environment26: 1299–1312.
11.
CanoNS de SLIacovidouERutkowskiEW (2022) Typology of municipal solid waste recycling value chains: A global perspective. Journal of Cleaner Production336: 130386.
12.
CarenzoSSorrocheS (2021) The politics of waste picking: Reflections from the upscaling of a co-management model for recyclable waste in Buenos Aires (Argentina). Géocarrefour95(1). DOI: 10.4000/geocarrefour.16682.
13.
CastroAMRC deSchalchV (2022) Initiatives for integration, inclusion, and formalisation of waste pickers in waste management systems worldwide: a systematic review protocol. OSF. Available at: https://osf.io/nvcyb/ (accessed 29 January 2023).
14.
CataldoNLOyinlolaMSigdelS, et al (2024) Waste management in Nepal: Characterization and challenges to promote a circular economy. Circular Economy and Sustainability4: 439–457.
15.
CherfemCO (2015) Boas práticas de gestão de resíduos sólidos urbanos e de logística reversa com a inclusão de catadoras e de catadores de materiais recicláveis. Rio de Janeiro. Available at: https://repositorio.ipea.gov.br/handle/11058/7487 (accessed 3 November 2024).
Conselho Nacional do Ministério Público (2014) Catadores de materiais recicláveis: Um encontro nacional. Brasília: Conselho Nacional do Ministério Público. Available at: https://www.cnmp.mp.br/portal/images/Livro_Catadores_WEB.pdf (accessed 9 February 2025).
18.
CookECanoNS de SLVelisCA (2024) Informal recycling sector contribution to plastic pollution mitigation: A systematic scoping review and quantitative analysis of prevalence and productivity. Resources, Conservation and Recycling206: 107588.
19.
DemajorovicJCairesEFGonçalvesLNdaS, et al (2014) Integrando empresas e cooperativas de catadores em fluxos reversos de resíduos sólidos pós-consumo: o caso Vira-Lata. Cadernos EBAPE.BR12: 513–532.
20.
DiasALSLangeLCMagalhãesAS (2022) Application of a ‘Recycling Exchange’ instrument to compensate waste pickers in Brazil via a first payment for urban environmental services programme. Waste Management and Research40: 892–904.
21.
Department of Environment, Forestry and Fisheries and Department of Science and Innovation (2020) Waste picker integration guideline for South Africa: Building the recycling economy and improving livelihoods through integration of the informal sector. Pretoria: Department of Environment, Forestry and Fisheries and Department of Science and Innovation. Available at: https://wasteroadmap.co.za/wp-content/uploads/2021/02/Waste-Picker-Integration-Guidelines.pdf (accessed 9 February 2025).
22.
DiasSM (2016) Waste pickers and cities. Environment and Urbanization28: 375–390.
EstradaMGalvinMMaassenA, et al (2022) Catalysing urban transformation through women’s empowerment in cooperative waste management: The SWaCH initiative in Pune, India. Local Environment28: 852–866.
25.
EtimEChoedronKTAjaiO, et al (2024) Systematic review of factors influencing household food waste behaviour: Applying the theory of planned behaviour. Waste Management and Research43: 803–827.
Exchange-Rates (n.d.) Trusted Currency Converter for Accurate Exchange Rates. Available at: https://www.exchange-rates.org/ (accessed 22 May 2025).
28.
FidelisRColmeneroJC (2018) Evaluating the performance of recycling cooperatives in their operational activities in the recycling chain. Resources, Conservation and Recycling130: 152–163.
29.
FidelisRMarco-FerreiraAAntunesLC, et al (2020) Socio-productive inclusion of scavengers in municipal solid waste management in Brazil: Practices, paradigms and future prospects. Resources, Conservation and Recycling154: 104594.
30.
FigueiredoFFSilveiraRM da CSilvaPVO da (2020) A produção acadêmica sobre a inclusão sócio-produtiva de catadores de recicláveis no Brasil. GEOgraphia22: a43321.
31.
FrançaSA de SBarrosRT de V (2024) Coleta seletiva em alguns municípios do estado do Pará, Brasil. Novos Cadernos NAEA27: 139–162.
GallMWienerMChagasdeOliveiraC, et al (2020) Building a circular plastics economy with informal waste pickers: Recyclate quality, business model, and societal impacts. Resources, Conservation and Recycling156: 104685.
35.
GiovanniniMHuybrechtsB (2017) How inclusive is inclusive recycling? Recyclers’ perspectives on a cross-sector partnership in Santiago de Chile. Local Environment22: 1497–1509.
Gómez-MaldonadoAOspina-EspitaLCRodríguez-LesmesP, et al (2023) Barriers and opportunities for waste pickers within solid waste management policy in Colombia. Waste Management163: 1–11.
GutberletJCarenzoS (2020) Waste pickers at the heart of the circular economy: A perspective of inclusive recycling from the global south. Worldwide Waste: Journal of Interdisciplinary Studies3: 6.
40.
GutberletJCarenzoSKainJH, et al (2017) Waste picker organizations and their contribution to the circular economy: Two case studies from a Global South Perspective. Resources6: 52.
41.
GutberletJMantovani MartinianodeAzevedoAMoraisL, et al (2023) Social movements in the context of crisis: waste picker organizations as collaborative public partners in the context of the COVID-19 pandemic. Environment and Urbanization35: 255–274.
42.
GutberletJSorrocheSMartins BaederA, et al (2021) Waste pickers and their practices of insurgency and environmental stewardship. Journal of Environment and Development30: 369–394.
43.
GutiérrezRA (2020) A troubled collaboration: Cartoneros and the PRO administrations in Buenos Aires. Latin American Politics and Society62: 97–120.
44.
HartmannC (2018) Waste picker livelihoods and inclusive neoliberal municipal solid waste management policies: The case of the La Chureca garbage dump site in Managua, Nicaragua. Waste Management71: 565–577.
45.
HartmannCHegelCBoampongO (2022) The forgotten essential workers in the circular economy? Waste picker precarity and resilience amidst the COVID-19 pandemic. Local Environment27: 1272–1286.
46.
Hidalgo-CrespoJAmaya-RivasJLRibeiroI, et al (2023) Informal waste pickers in guayaquil: Recycling rates, environmental benefits, main barriers, and troubles. Heliyon9: e19775.
47.
HigginsJPTThomasJChandlerJ, et al. (eds) (2024) Cochrane handbook for systematic reviews of interventions. Version 6.5 (updated August 2024). Cochrane. Available at: https://www.training.cochrane.org/handbook (accessed 5 February 2025).
IPEA (2010) Pesquisa sobre pagamento por serviços ambientais urbanos para gestão de resíduos sólidos. Brasília. Available at: https://repositorio.ipea.gov.br/handle/11058/7968 (accessed 3 November 2024).
53.
JagadaleSR (2024) Unleashing the true potential of a social enterprise: Constructive engagement and integrative justice model in the Indian subsistence context-future direction?Journal of Macromarketing44: 668–678.
54.
JagadaleSRSantosNJC (2022) Constructively engaging exploitive waste management in India: The case of Paryavaran Mitra and its justice motivated effort at empowering rag-picking women. Journal of Macromarketing42: 191–213.
55.
KingMFGutberletJ (2013) Contribution of cooperative sector recycling to greenhouse gas emissions reduction: A case study of Ribeirão Pires, Brazil. Waste Management33: 2771–2780.
56.
KristantoGAKemalaDNandhitaPAC (2022) Challenges confronting waste pickers in Indonesia: An on-field analysis. Waste Management and Research40: 1381–1389.
57.
LimaLRGutierrezRFGenerosoAL, et al (2024) Challenges and opportunities for waste picker cooperatives during the COVID-19 pandemic: A comparative case study of 3 cooperatives in Sao Paulo State, Brazil. Journal of Material Cycles and Waste Management26: 2254–2264.
58.
LimaMRP (2018) Paradoxos da formalização: a inclusão social dos catadores de recicláveis a partir do caso do encerramento do aterro de Jardim Gramacho (RJ). Horizontes Antropológicos24: 145–180.
59.
LimaNS de SManciniSD (2017) Integration of informal recycling sector in Brazil and the case of Sorocaba City. Waste Management and Research35: 721–729.
MaielloA (2022) In, out or beyond? Waste pickers and policy networks: A story from Jardim Gramacho (Rio de Janeiro). Sustainability14: 16977.
62.
ManziMSantanaJSMarchiCMDF (2022) ‘Accumulation by appropriation’: The integration of recyclable-waste collector cooperatives in Salvador, Brazil, and the right to the city. Environment and Planning D: Society and Space40: 683–705.
63.
MirandaITPFidelisRFidelis DA deS, et al (2020) The integration of recycling cooperatives in the formal management of municipal solid waste as a strategy for the circular economy – The case of Londrina, Brazil. Sustainability12: 1–22.
64.
MoherDShamseerLClarkeM, et al (2016) Preferred reporting items for systematic review and meta-analysis protocols (PRISMA-P) 2015 statement. Revista Espanola de Nutricion Humana y Dietetica20: 148–160.
65.
MoraisJCorderGGolevA, et al (2022) Global review of human waste-picking and its contribution to poverty alleviation and a circular economy. Environmental Research Letters17: 063002.
66.
Movimento de Pimpadores (2022) Pesquisa Cataki 2022: Contexto de catadores autônomos e impacto do Cataki em São Paulo, Rio de Janeiro e Belo Horizonte. Available at: https://apoie.pimpmycarroca.com/pesquisacataki2022 (accessed 26 July 2024).
67.
NevilleLCortésLFT (2023) Waste pickers’ formalisation from Bogotá to Cartagena de Indias: Dispossession and Socio-Economic Enclosures In Two Colombian Cities. Sustainability15: 9047.
68.
NguyenNTCollinsACollinsCM (2024) Trends and patterns in the application of co-production, co-creation, and co-design methods in studies of green spaces: A systematic review. Environmental Science and Policy152: 103642.
69.
OroskiFA (2025) Understanding food surplus: Challenges and strategies for reducing food waste – A mini-review. Waste Management & Research 0(0). DOI: 10.1177/0734242X251320878.
70.
OuzzaniMHammadyHFedorowiczZ, et al (2016) Rayyan-a web and mobile app for systematic reviews. Systematic Reviews5: 210.
71.
PageMJMcKenzieJEBossuytPM, et al (2021) The PRISMA 2020 statement: An updated guideline for reporting systematic reviews. BMJ372: n71.
PastorLJSubramanianVCucurachiS, et al (2024) Caste, mistrust and municipal inaction: The interwoven barriers for the integration of waste pickers in India. Journal of Environmental Management356: 120513.
74.
PaulJGArce-JaqueJRavenaN, et al (2012) Integration of the informal sector into municipal solid waste management in the Philippines – What does it need?Waste Management32: 2018–2028.
75.
PolettoMMori PRdeSchneiderVE, et al (2016) Urban solid waste management in Caxias do Sul/Brazil: practices and challenges. Journal of Urban and Environmental Engineering10: 50–56.
76.
RateauMTovarL (2019) Formalization of wastepickers in Bogota and Lima: Recognize, regulate, and then integrate?EchoGéo47: 16614.
77.
RendonMEspluga-TrencJVerdJM (2021) Assessing the functional relationship between the formal and informal waste systems: A case-study in Catalonia (Spain). Waste Management131: 483–490.
78.
RethlefsenMLKirtleySWaffenschmidtS, et al (2021) PRISMA-S: An extension to the PRISMA statement for reporting literature searches in systematic reviews. Systematic Reviews10: 39.
79.
RibeiroPSdaCRutkowskiEWRezendeS (2021) Negotiations and conflict in the implementation of a waste pickers’ cooperative: A sociology of translation approach. Sustainability13: 12809.
80.
RolkerHEislerMCardenasL, et al (2022) Food waste interventions in low-and-middle-income countries: A systematic literature review. Resources, Conservation and Recycling186: 106534.
81.
RosaldoM (2022) Dilemmas of co-production: How street waste pickers became excluded from inclusive recycling in São Paulo. Latin American Politics and Society64: 67–92.
RutkowskiJE (2020) Inclusive packaging recycling systems: Improving sustainable waste management for a circular economy. Detritus13: 29–46.
84.
RutkowskiJERutkowskiEW (2015) Expanding worldwide urban solid waste recycling: The Brazilian social technology in waste pickers inclusion. Waste Management and Research33: 1084–1093.
85.
SakamotoJLCano NS deSLOliveira JFD de, et al (2021) How much for an inclusive and solidary selective waste collection? A Brazilian study case. Local Environment26: 985–1007.
86.
SamsonM (2020) Whose frontier is it anyway? Reclaimer integration and the battle over Johannesburg’s waste-based commodity frontier. Capitalism Nature Socialism31(4): 60–75.
87.
SamsonMKadyamadareGNdlovuL, et al (2022) ‘Wasters, agnostics, enforcers, competitors, and community integrators’: Reclaimers, S@S, and the five types of residents in Johannesburg, South Africa. World Development150: 105733.
88.
SantanaALLangeLCMagalhãesAS (2022) O impacto do instrumento econômico Bolsa Reciclagem orientado aos catadores de materiais recicláveis sobre o mercado da reciclagem do vidro no estado de Minas Gerais. Engenharia Sanitaria e Ambiental27: 737–747.
89.
SantiagoCDOliveiraEZPugliesiE (2016) Desafio da inserção dos catadores de materiais recicláveis nas políticas municipais de resíduos sólidos. Revista Espacios37: 6.
90.
SchenckRViljoenKBlaauwD (2021) Precarious, more precarious, most precarious? The quality of life of waste pickers in the Karoo. Social Work (South Africa)57: 302–319.
91.
SekhwelaMMSamsonM (2020) Contested understandings of Reclaimer Integration – Insights from a failed Johannesburg Pilot Project. Urban Forum31: 21–39.
92.
SenaLGCalixtoLMGalavoteT, et al (2023) Gestão de resíduos domiciliares: Uma análise sistêmica sob a ótica da sustentabilidade financeira de municípios e rendimentos de catadores de materiais recicláveis no Brasil. urbe. Revista Brasileira de Gestão Urbana15: e20220212.
93.
SholankeDGutberletJ (2022) Call for participatory waste governance: Waste management with informal recyclers in Vancouver. Journal of Environmental Policy and Planning24: 94–108.
94.
SilvaPF daBesenGRRibeiroH (2021) Payment for environmental services for waste pickers: Systematic literature mapping. Energy and Environment Research11: 54–70.
95.
SimanRRYamaneLHBaldamR de L, et al (2020) Governance tools: Improving the circular economy through the promotion of the economic sustainability of waste picker organizations. Waste Management105: 148–169.
96.
SiwawaV (2024) Effect of the ICT-enabled reclaimer system on the informal waste recycling system in Cape Town, South Africa: The Regenize model. Electronic Journal of Information Systems in Developing Countries91: e12345.
97.
SteuerBLiH (2022) An effective system for recovering recyclable waste from households in China: Ant Recovery’s bottom-up scheme in Changchun city. Waste Management139: 352–361.
TsakonaMRučevskaIDiasSM, et al (2022) A Seat at the Table The Role of the Informal Recycling Sector in Plastic Pollution Reduction, and Recommended Policy Changes. Available at: https://www.grida.no/publications/863 (accessed 3 November 2024).
VelisC (2024) Which ‘Just Transition’ futures for waste pickers – Via plastic pollution mitigation?Waste Management and Research42: 433–435.
102.
VelisCAHardestyBDCottomJW, et al (2022) Enabling the informal recycling sector to prevent plastic pollution and deliver an inclusive circular economy. Environmental Science and Policy138: 20–25.
103.
VelisCAWilsonDCRoccaO, et al (2012) An analytical framework and tool (‘InteRa’) for integrating the informal recycling sector in waste and resource management systems in developing countries. Waste Management and Research 30(suppl 1): 43–66.
104.
VERBI Software (2021) MAXQDA 2022 [computer software]. Berlin, Germany: VERBI Software.
105.
VillalbaL (2020) Recent evolution of the informal recycling sector in Argentina within the ‘popular economy’: Measuring its impact through a case study in Tandil (Buenos Aires). Waste Management and Research38: 1037–1046.
106.
VoukkaliIPapamichaelILoiziaP, et al (2023) Waste metrics in the framework of circular economy. Waste Management and Research41: 1741–1753.
107.
WilsonKSKootbodienTMadeF, et al (2022) Men and women waste pickers on landfills in Johannesburg, South Africa: Divergence in health, and socioeconomic status. International Archives of Occupational and Environmental Health95: 351–363.
108.
WittmerJ (2023) ‘I salute them for their hardwork and contribution’: Inclusive urbanism and organizing women recyclers in Ahmedabad, India. Urban Geography44: 1911–1930.
YamaneLHSimanRRDutraRM de S (2023) Assessment and perception of occupational risks in waste picker organizations: A portrait of waste pickers situation after formal integration. Detritus22: 13.
111.
YohannesTYuJJonahK, et al (2024) A bibliographic review on anthropogenic climate change and drought. Environmental Science and Policy160: 103830.
112.
YoshidaYSitasNMannettiL, et al (2024) Beyond Academia: A case for reviews of gray literature for science-policy processes and applied research. Environmental Science and Policy162: 103882.
113.
ZisopoulosFKSteuerBAbussafyR, et al (2023) Informal recyclers as stakeholders in a circular economy. Journal of Cleaner Production415: 137894.
114.
ZolnikovTRFurioFCruvinelV, et al (2021) A systematic review on informal waste picking: Occupational hazards and health outcomes. Waste Management126: 291–308.
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