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Compost quality from biowaste treatment in West Africa

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datacite.subject.sdg11:Cidades e Comunidades Sustentáveispt_PT
dc.contributor.authorVaz, João Miguel
dc.contributor.authorFerreira, Célia
dc.contributor.authorPečkytė, J.
dc.contributor.authorTumaševičiūtė, R.
dc.date.accessioned2023-07-11T08:42:01Z
dc.date.available2023-07-11T08:42:01Z
dc.date.issued2015
dc.description9ª Jornadas Técnicas Internacionais de Resíduos, realizadas no IP de Viana do Castelo, de 14-16 setembro de 2015.pt_PT
dc.description.abstractComposting is generally considered as a cost effective waste management option for stabilising waste and produce a soil improver/organic fertilizer. Passive aerated open windrows is a typical low cost option feasible in in São Tomé and Principe (pop. 197 900), a small island state in West Africa. Here the European Union, in partnership with Instituto Camões, UCCLA and the local authority, invested in the waste management system upgrade. A composting plant integrated with biowaste collection has been working since 2013. In order to assess the composting process efficiency, a novelty in São Tomé on this scale, temperature was regularly measured and registered. The matured compost was analysed in Portuguese Laboratories, targeting parameters such as: humidity, pH, electrical conductivity, organic matter, macronutrients and heavy metals. The results are encouraging suggesting that composting is a good option for treating biowaste collected separately at households, central markets, supermarkets, rest homes, restaurants, municipal gardens…etc. Compost output has high C/N ratio and concentration of organic matter, thus evidencing agronomic value. However, some heavy metals (Cr, Ni) content are a matter of concern, and require further assessment in order to prevent their presence. Besides the financial benefits, composting allows saving natural resources by transforming biowaste into a product, reducing harmful impact of chemical fertilizers to soil. This article paves the way to further research and should encourage more experiences in this field, transforming waste into ready available compost.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.urihttp://hdl.handle.net/10400.2/14334
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationRAW - Recovering nutrients from wastes: eco-innovative solutions to transform waste into resources
dc.subjectCompostpt_PT
dc.subjectCompostingpt_PT
dc.subjectSão Tomé e Principept_PT
dc.subjectBiowastept_PT
dc.subjectNutrientspt_PT
dc.subjectWaste management in Africapt_PT
dc.titleCompost quality from biowaste treatment in West Africapt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleRAW - Recovering nutrients from wastes: eco-innovative solutions to transform waste into resources
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F100717%2F2014/PT
oaire.citation.conferencePlaceViana do Castelo, Portugalpt_PT
oaire.citation.title9ª Jornadas Técnicas Internacionais de Resíduospt_PT
person.familyNameFerreira
person.givenNameCélia
person.identifier.ciencia-id931E-FBDE-2098
person.identifier.orcid0000-0002-7456-2538
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
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relation.isAuthorOfPublication.latestForDiscoverye30010dd-0512-4da6-a0c9-910b47f18b4f
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