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Although a significant part of the waste is collected as commingled waste, much of it is recyclable if disposed of properly. Thus, separate deposition and collection plays an extremely important role today, more than ever, not only in terms of preventing pollution but also from the point of view of recycling as a driver of circular economy and of efficient use of resources. This work is focused on the development of compaction equipment to be applied to containers, which allows a more efficient approach to the process of collecting waste for recycling. As a management option, recycling depends on collective behavior which is based on individual acts. Therefore, individual use of plastic\/metal compaction systems can help meet recycling targets, even as a complement to conventional bins. Thus, herein a proposal is presented for a plastic\/metal collection station with a built-in compaction element that allows for the compacting of the separated waste, individually, in an easily accessible drawer. Sorting and compacting waste before collection will result in a reduction of the number of collection\/transport stops, which will also translate into higher energy efficiency, cost savings, optimization of the transported tons\/km ratio, and profitability.<\/jats:p>","DOI":"10.3390\/en15197351","type":"journal-article","created":{"date-parts":[[2022,10,8]],"date-time":"2022-10-08T04:04:56Z","timestamp":1665201896000},"page":"7351","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Reducing Volume to Increase Capacity\u2014Measures to Reduce Transport Energy for Recyclable Waste Collection"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8991-6768","authenticated-orcid":false,"given":"Adriano A.","family":"Santos","sequence":"first","affiliation":[{"name":"CIDEM, School of Engineering (ISEP), Polytechnic of Porto (P. Porto), Rua Dr. Ant\u00f3nio Bernardino de Almeida 431, 4249-015 Porto, Portugal"},{"name":"INEGI\u2014Institute of Science and Innovation in Mechanical and Industrial Engineering, 4200-465 Porto, Portugal"}]},{"given":"Ant\u00f3nio Ferreira","family":"da Silva","sequence":"additional","affiliation":[{"name":"CIDEM, School of Engineering (ISEP), Polytechnic of Porto (P. Porto), Rua Dr. Ant\u00f3nio Bernardino de Almeida 431, 4249-015 Porto, Portugal"},{"name":"INEGI\u2014Institute of Science and Innovation in Mechanical and Industrial Engineering, 4200-465 Porto, Portugal"}]},{"given":"Ant\u00f3nio","family":"Gouveia","sequence":"additional","affiliation":[{"name":"CIDEM, School of Engineering (ISEP), Polytechnic of Porto (P. Porto), Rua Dr. Ant\u00f3nio Bernardino de Almeida 431, 4249-015 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4202-5551","authenticated-orcid":false,"given":"Carlos","family":"Felgueiras","sequence":"additional","affiliation":[{"name":"CIETI\u2014School of Engineering (ISEP), Polytechnic of Porto (P. Porto), Rua Dr. Ant\u00f3nio Bernardino de Almeida 431, 4249-015 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2185-6401","authenticated-orcid":false,"given":"N\u00eddia","family":"Caetano","sequence":"additional","affiliation":[{"name":"CIETI\u2014School of Engineering (ISEP), Polytechnic of Porto (P. Porto), Rua Dr. Ant\u00f3nio Bernardino de Almeida 431, 4249-015 Porto, Portugal"},{"name":"LEPABE\u2014Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto (FEUP), R. Dr. Roberto Frias s\/n, 4200-465 Porto, Portugal"},{"name":"ALiCE\u2014Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2022,10,6]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"53","DOI":"10.56578\/jcgirm070105","article-title":"The Impact of COVID-19 in Malta and its Economy and Sustainable Strategies","volume":"7","author":"Grima","year":"2022","journal-title":"J. Corp. Gov. Insur. Risk Manag. (JCGIRM)"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"430","DOI":"10.1016\/j.egyr.2022.01.066","article-title":"Recyclable waste collection\u2014Increasing ecopoint filling capacity to reduce energy for transportation","volume":"8","author":"Santos","year":"2022","journal-title":"Energy Rep."},{"key":"ref_3","unstructured":"(2022, June 10). Carla Ferreira e Eug\u00e9nia Pereira da Costa. Trabalhar em Tempos de COVID-19: O Teletrabalho. Gabinete de Estrat\u00e9gia e Estudo, Minist\u00e9rio da Economia, Boletim Mensal de Economia Portuguesa, BMEP No. 06, 33\u201357, Available online: https:\/\/www.gee.gov.pt\/en\/docs\/doc-o-gee-2\/boletim-mensal-de-economia-portuguesa\/2021-12\/9399-bmep-n-06-2021\/file."},{"key":"ref_4","unstructured":"Clark, D. (2022, June 11). Percentage of People Usually Working from Home in Europe 2020, by Country. Economy. Available online: https:\/\/www.statista.com\/statistics\/879251\/employees-teleworking-in-the-eu\/2021."},{"key":"ref_5","unstructured":"(2022, August 04). Eurostat [lfsa_ehomp]. Employed Persons Working from Home as a Percentage of the Total Employment, by Sex, Age and Professional Status (%), Last Update: 4 July 2022. Available online: https:\/\/appsso.eurostat.ec.europa.eu\/nui\/show.do?dataset=lfsa_ehomp."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"7760","DOI":"10.1021\/acs.est.0c02178","article-title":"Duarte, and Teresa Rocha-Santos COVID-19 Pandemic Repercussions on the Use and Management of Plastics","volume":"54","author":"Joana","year":"2020","journal-title":"Environ. Sci. Technol."},{"key":"ref_7","unstructured":"(2022, August 04). Eurostat [env_waspac]. Time Series of Packaging Waste\u2014Packaging Waste Generated by Packaging Material, EU, 2009\u20132019. Available online: https:\/\/ec.europa.eu\/eurostat\/statistics-explained\/index.php?title=Packaging_waste_statistics#Waste_generation_by_packaging_material."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"894","DOI":"10.35808\/ersj\/2531","article-title":"The COVID-19 Pandemic and the Problem of Plastic Waste in the EU","volume":"24","author":"Baran","year":"2021","journal-title":"Eur. Res. Stud. J."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"126683","DOI":"10.1016\/j.cej.2020.126683","article-title":"Increased plastic pollution due to COVID-19 pandemic: Challenges and recommendations","volume":"405","author":"Prata","year":"2021","journal-title":"Chem. Eng. J."},{"key":"ref_10","unstructured":"Rodrigues, C., and Alves, J. (2022, May 25). Por um Oceano Limpo. Available online: https:\/\/www.publico.pt\/2018\/04\/22\/infografia\/por-umoceano-limpo-260#gs.V4WWxZv6."},{"key":"ref_11","doi-asserted-by":"crossref","unstructured":"Garnett, E., Balayannis, A., Hinchliffe, S., Davies, T., Gladding, T., and Nicholson, P. (2022). The work of waste during COVID-19: Logics of public, environmental, and occupational health. Crit. Public Health, in press.","DOI":"10.1080\/09581596.2022.2048632"},{"key":"ref_12","unstructured":"Parker, L. (2022, April 14). 91%: A Chocante Percentagem de Pl\u00e1stico que N\u00e3o \u00e9 Reciclado. National Geographic. Available online: https:\/\/www.natgeo.pt\/planeta-ou-plastico\/2017\/08\/91-chocante-percentagem-de-plastico-que-nao-e-reciclado."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"2013","DOI":"10.1016\/j.energy.2017.11.128","article-title":"Spencer Municipal solid waste management and waste-to-energy in the context of a circular economy and energy recycling in Europe","volume":"141","author":"Malinauskaite","year":"2017","journal-title":"Energy"},{"key":"ref_14","first-page":"100014","article-title":"Waste approach towards a sustainable waste management","volume":"3","author":"Awasthi","year":"2021","journal-title":"Resour. Environ. Sustain."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"802","DOI":"10.1016\/j.renene.2021.06.107","article-title":"A Review of Waste Management in Brazil and Portugal: Waste-to-Energy as Pathway for Sustainable Development","volume":"178","author":"Silva","year":"2021","journal-title":"Renew. Energy"},{"key":"ref_16","unstructured":"APA (2022, September 22). Relat\u00f3rio Anual Res\u00edduos Urbanos 2019, Available online: https:\/\/apambiente.pt\/sites\/default\/files\/_Residuos\/Producao_Gest%C3%A3o_Residuos\/Dados%20RU\/RARU%202019.pdf."},{"key":"ref_17","unstructured":"Instituto Nacional de Estat\u00edstica, I.P (2022, September 14). Estat\u00edsticas Do Ambiente 2020; Lisboa, Available online: https:\/\/www.ine.pt\/xportal\/xmain?xpid=INE&xpgid=ine_publicacoes&PUBLICACOESpub_boui=280813687&PUBLICACOESmodo=2."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"100735","DOI":"10.1016\/j.scp.2022.100735","article-title":"Social Receptiveness Analysis on Smart Waste Management\u2014A Case Study for Portugal","volume":"28","author":"Costa","year":"2022","journal-title":"Sustain. Chem. Pharm."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"70","DOI":"10.1016\/j.wasman.2021.12.020","article-title":"Performance and Its Determinants in the Portuguese Municipal Solid Waste Utilities","volume":"139","author":"Amaral","year":"2022","journal-title":"Waste Manag."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"e1700782","DOI":"10.1126\/sciadv.1700782","article-title":"Production, use, and fate of all plastics ever made","volume":"3","author":"Geyer","year":"2017","journal-title":"Sci. Adv."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"104798","DOI":"10.1016\/j.resconrec.2020.104798","article-title":"Recycling and management practices of plastic packaging waste towards a circular economy in South Korea","volume":"158","author":"Jang","year":"2020","journal-title":"Resour. Conserv. Recycl."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"5","DOI":"10.1007\/s11783-021-1439-x","article-title":"The Road to Sustainable Use and Waste Management of Plastics in Portugal","volume":"16","author":"Prata","year":"2021","journal-title":"Front. Environ. Sci. Eng."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"126977","DOI":"10.1016\/j.jclepro.2021.126977","article-title":"Metal recovery from municipal solid waste incineration fly ash as a tool of circular economy","volume":"302","author":"Lacko","year":"2021","journal-title":"J. Clean. Prod."},{"key":"ref_24","first-page":"102259","article-title":"Processing-structure-property correlation in additive friction stir deposited Ti-6Al-4V alloy from recycled metal chips","volume":"47","author":"Agrawal","year":"2021","journal-title":"Addit. Manuf."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"100142","DOI":"10.1016\/j.cscee.2021.100142","article-title":"Iqbal Plastic waste and its management strategies for environmental sustainability","volume":"4","author":"Evode","year":"2021","journal-title":"Case Stud. Chem. Environ. Eng."},{"key":"ref_26","unstructured":"Koch, L. (2022, April 13). Opini\u00e3o: Dia da Terra 2018: Acabemos Juntos com a Polui\u00e7\u00e3o do Pl\u00e1stico | Ambiente Magazine 2018. Available online: https:\/\/www.ambientemagazine.com\/opiniao-dia-da-terra-2018-acabemos-juntos-com-a-poluicao-do-plastico\/."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"108","DOI":"10.1016\/j.wasman.2016.11.032","article-title":"A case Study of packaging waste collection systems in Portugal- Part II: Environmental and economic analysis","volume":"61","author":"Pires","year":"2017","journal-title":"Waste Manag."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"13","DOI":"10.1016\/j.jenvman.2017.04.065","article-title":"Model for the separate collection of packaging waste in Portuguese low-performing recycling regions","volume":"216","author":"Oliveira","year":"2018","journal-title":"J. Environ. Manag."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"8","DOI":"10.3389\/frsc.2020.00008","article-title":"The cost of urban waste management: An empirical analysis of recycling patterns in Italy","volume":"2020","author":"Cialani","year":"2020","journal-title":"Front. Sustain. Cities"},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"101997","DOI":"10.1016\/j.jksus.2022.101997","article-title":"Evaluation of cost benefit analysis of municipal solid waste management systems","volume":"34","author":"Khan","year":"2022","journal-title":"J. King Saud Univ.\u2013Sci."},{"key":"ref_31","unstructured":"Eurostat (2022, August 04). Packaging Waste Statistics\u2014Recycling and Recovery Targets and Rates, Available online: https:\/\/ec.europa.eu\/eurostat\/statistics-explained\/index.php?title=Packaging_waste_statistics#Recycling_and_recovery_targets_and_rates."},{"key":"ref_32","unstructured":"PORDATA (2022, April 14). PORDATA\u2014Res\u00edduos de Embalagem Reciclados no Total de Res\u00edduos de Embalagem (%). Available online: https:\/\/www.pordata.pt\/en\/Europe\/Recycling+rate+of+packaging+waste+(percentage)-3428."},{"key":"ref_33","unstructured":"OVO (2022, April 14). Community Life Improver. OVO Solutions. Available online: http:\/\/www.ovosolutions.com\/pt\/index.php?page=produtos&categoria=1&subcategoria=4."},{"key":"ref_34","unstructured":"Rotovedras Plastic Technology (2022, June 12). Prote\u00e7\u00e3o Ambiental\u2014Contentor com Rodas. Available online: https:\/\/rotovedras.pt\/produtos\/contentor-com-rodas\/."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"137088","DOI":"10.1016\/j.scitotenv.2020.137088","article-title":"Strategy development in the framework of waste management","volume":"716","author":"Zorpas","year":"2020","journal-title":"Sci. Total Environ."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"120340","DOI":"10.1016\/j.jclepro.2020.120340","article-title":"Waste aroma profile in the framework of food waste management through household composting","volume":"257","author":"Agapios","year":"2020","journal-title":"J. Clean. Prod."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"439","DOI":"10.1177\/0734242X15574589","article-title":"Design of an innovative, ecological portable waste compressor for in-house recycling of paper, plastic and metal packaging waste","volume":"33","author":"Xevgenos","year":"2015","journal-title":"Waste Manag. Res."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"63","DOI":"10.4271\/2009-01-2363","article-title":"Testing of a Plastic Melt Waste Compactor Designed for Human Space Exploration Missions","volume":"4","author":"Pace","year":"2011","journal-title":"SAE Int. J. Aerosp."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"227","DOI":"10.1016\/j.tre.2015.02.019","article-title":"A Novel Methodology for Designing a Household Waste Collection System for Insular Zones","volume":"77","author":"Miranda","year":"2015","journal-title":"Transp. Res. Part E Logist. Transp. Rev."},{"key":"ref_40","unstructured":"(2022, April 14). Decreto-Lei 152-D\/2017. Di\u00e1rio da Rep\u00fablica n. 236\/2017, 2 Suplemento, Serie I de 2017-12-11. Available online: https:\/\/files.dre.pt\/1s\/2017\/12\/23602\/0008800135.pdf."},{"key":"ref_41","unstructured":"(2022, April 14). Decreto-Lei 178\/2006. Regime Geral da Gest\u00e3o de Res\u00edduos. In Di\u00e1rio da Rep\u00fablica No. 171\/2006. Serie I de 2006-09-05. Available online: https:\/\/files.dre.pt\/1s\/2006\/09\/17100\/65266545.pdf."},{"key":"ref_42","unstructured":"Ferreira, J.A.O. (2016). Optimiza\u00e7\u00e3o do Processo de Recolha de Res\u00edduos: Desenvolvimento de Ferramentas de Investiga\u00e7\u00e3o Operacional para o Problema de Orienta\u00e7\u00e3o de Equipas com Multi-restri\u00e7\u00f5es. [Ph.D. Thesis, Universidade do Minho]. Available online: https:\/\/repositorium.sdum.uminho.pt\/bitstream\/1822\/41574\/1\/TESE_Jo%C3%A3o%20Amaro%20Oliveira%20Ferreira_2015.pdf."},{"key":"ref_43","unstructured":"APA (2022, April 14). Dados Sobre Res\u00edduos Urbanos, Ag\u00eancia Portuguesa do Ambiente, Available online: https:\/\/apambiente.pt\/residuos\/dados-sobre-residuos-urbanos."},{"key":"ref_44","unstructured":"APA (2021, June 16). Relat\u00f3rio do Estado do Ambiente 2020\/21. Ag\u00eancia Portuguesa do Ambiente, Available online: https:\/\/sniambgeoviewer.apambiente.pt\/GeoDocs\/geoportaldocs\/rea\/REA2020\/REA2020.pdf."},{"key":"ref_45","unstructured":"APA (2022, June 16). Relat\u00f3rio Anual, Res\u00edduos Urbanos 2020 (outubor 2021), Available online: https:\/\/apambiente.pt\/sites\/default\/files\/_Residuos\/Producao_Gest%C3%A3o_Residuos\/Dados%20RU\/RARU%202020_V1.pdf."},{"key":"ref_46","unstructured":"Gouveia, A.S. (2020). Otimiza\u00e7\u00e3o de Ecopontos. [Master\u2019s Thesis, Instituto Superior de Engenharia do Porto (ISEP)]. Available online: https:\/\/recipp.ipp.pt\/handle\/10400.22\/16564."},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"92","DOI":"10.1007\/BF02978432","article-title":"Life cycle assessment of a plastic packaging recycling system","volume":"82","author":"Arena","year":"2003","journal-title":"Int. J. Life Cycle Assess."},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"69","DOI":"10.1177\/147776060402000106","article-title":"Environmental aspects of mechanical recycling of PE and PET: A life cycle assessment study","volume":"20","author":"Perugini","year":"2004","journal-title":"Prog. Rubber Plast. Recycl. Technol."},{"key":"ref_49","unstructured":"PERSU (2022, April 14). Plano Estrat\u00e9gico para os Res\u00edduos Urbanos (PERSU) Ag\u00eancia Portuguesa do Ambiente. Available online: https:\/\/apambiente.pt\/residuos\/plano-estrategico-para-os-residuos-urbanos-persu."}],"container-title":["Energies"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1996-1073\/15\/19\/7351\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T00:47:26Z","timestamp":1760143646000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1996-1073\/15\/19\/7351"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,10,6]]},"references-count":49,"journal-issue":{"issue":"19","published-online":{"date-parts":[[2022,10]]}},"alternative-id":["en15197351"],"URL":"https:\/\/doi.org\/10.3390\/en15197351","relation":{},"ISSN":["1996-1073"],"issn-type":[{"value":"1996-1073","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,10,6]]}}}