The objective of this study was to verify how photovoltaic solar energy in Brazil has been approached in the scientific literature. Therefore, searches were carried out in the ScienceDirect database, using the words "Brazilian and photovoltaic and energy" and limited by the type "review" and "research". A total of 160 articles were found, four were discarded, leaving 156 articles. Among the 156 articles, within the adopted classification, research was carried out on technologies and equipment; hybrid or complementary generation systems; power generation using buildings; laws, rules, regulations, tariffs; Marketplace; residential use of photovoltaic energy; comparison between energy sources; environmental impacts; education and training; and studies for a better location for the implementation of photovoltaic plants. What emerged from the research was the wide variety of topics, but especially the proposals for the use of photovoltaic solar energy sources, such as, for example, in hydroelectric power plant reservoirs and weirs; in the structure of commercial, residential, public buildings; on the roof of homes; hybrid systems associated with other sources, such as wind power; and in technology parks.
PurposeThe purpose of the article is to analyze the chain of electrical and electronic equipment (EEE) and its waste (WEEE), within the product chain of Recicladora Urbana (Reurbi), and its interaction with the circular economy.Design/methodology/approachExploratory research with a qualitative approach, based on the study case method, was conducted. The following stages were carried out: definition of the study object; bibliographic survey; documentary survey; technical visit to Reurbi; contacts with experts; creation of research instruments and research execution.FindingsThe main recipients of remanufactured EEE are third sector organizations that run social programs and schools with few financial resources. Recycling firms receive parts and components from the WEEE handled by Reurbi.Research limitations/implicationsThe authors only addressed the WEEE reverse remanufacturing chain of Reurbi; therefore, the authors cannot extend the results to an industrial sector.Practical implicationsOne practical contribution is disclosing the remanufacturing processes of EEE and the recycling processes of its waste, fostered by the National Solid Waste Policy (PNRS), under a circular economy policy.Social implicationsThere is a large market potential for reverse logistics of WEEE and end-of-life EEE as a source of raw material, which is yet to be explored in Brazil, for creating new jobs and revenue.Originality/valueThe publication of articles with the main reflections from the results can provide new discussions and provide opportunities for new studies regarding the Brazilian Solid Waste Policy.
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Esforços consideráveis estão sendo realizados na introdução gradual de fontes de energias sustentáveis para satisfazer as necessidades futuras de energia. A energia desempenha um papel essencial na economia circular porque as atividades circulares, como o processamento de materiais, requerem energia e calor. O objetivo foi pesquisar na literatura se a geração e o uso de energia solar fotovoltaica poderão contribuir para com os preceitos de economia circular. Foram realizadas pesquisas na base de dados ScienceDirect utilizando-se as palavras “solar and energy and circular economy”, “photovoltaic and energy and circular economy” sendo encontrados 25 artigos. Os artigos foram classificados nos temas “geração e uso de energia solar fotovoltaica”; “recuperação de material dos equipamentos de geração de energia fotovoltaica” e “comparação com a geração de outras formas de energia”. Foram localizados quinze artigos sobre “geração e uso de energia solar fotovoltaica”, oito artigos sobre “recuperação de material dos equipamentos de geração de energia fotovoltaica” e dois artigos sobre “comparação com a geração de outras formas de energia”. Verificou-se na pesquisa que a energia solar fotovoltaica, seja na geração de energia considerada uma fonte limpa e renovável, uso ou por meio de seus resíduos tanto da produção dos equipamentos ou após a vida útil, é uma tecnologia que poderá contribuir com a economia circular.
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