Compost quality from biowaste treatment in West Africa

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorVaz, João Miguel-
Autor(es): dc.creatorFerreira, Célia-
Autor(es): dc.creatorPečkytė, J.-
Autor(es): dc.creatorTumaševičiūtė, R.-
Data de aceite: dc.date.accessioned2025-08-21T15:16:21Z-
Data de disponibilização: dc.date.available2025-08-21T15:16:21Z-
Data de envio: dc.date.issued2023-07-11-
Data de envio: dc.date.issued2023-07-11-
Data de envio: dc.date.issued2015-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/10400.2/14334-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/10400.2/14334-
Descrição: dc.description9ª Jornadas Técnicas Internacionais de Resíduos, realizadas no IP de Viana do Castelo, de 14-16 setembro de 2015.-
Descrição: dc.descriptionComposting 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.-
Descrição: dc.descriptioninfo:eu-repo/semantics/publishedVersion-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Relação: dc.relationRAW - Recovering nutrients from wastes: eco-innovative solutions to transform waste into resources-
Palavras-chave: dc.subjectCompost-
Palavras-chave: dc.subjectComposting-
Palavras-chave: dc.subjectSão Tomé e Principe-
Palavras-chave: dc.subjectBiowaste-
Palavras-chave: dc.subjectNutrients-
Palavras-chave: dc.subjectWaste management in Africa-
Título: dc.titleCompost quality from biowaste treatment in West Africa-
Aparece nas coleções:Repositório Aberto - Universidade Aberta (Portugal)

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