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Casca de ostra: tendĂȘncias recentes dos usos ambientais visando Ă economia circular
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Abstract(s)
A produção de ostras em aquacultura Ă© uma atividade econĂŽmica implantada em muitos paĂses e que, durante o processo produtivo e o consumo, gera enormes quantidades de casca de ostra, tornando-se um resĂduo importante. Este trabalho mapeia o uso ambiental desse resĂduo. Realizou-se o mapeamento patentĂĄrio na base Worldwide europeia, usando o software OrbitÂź e verificou-se que a China e a Coreia sĂŁo os paĂses com maior nĂșmero de patentes. As tecnologias mais apropriadas na utilização da casca de ostra sĂŁo in natura (74%), seguida por calcinada (11%) e por tratamentos quĂmicos (6,9%). Os usos ambientais frequentes compreendem o tratamento de ĂĄguas residuĂĄria (32,4%), a remoção de metais pesados (10,8%), o tratamento de corpos de ĂĄgua/qualidade da ĂĄgua (9,5%), o tratamento de gases (9,1%). Os usos evidenciam que as tecnologias focam essencialmente o reaproveitamento desse resĂduo como solução sustentĂĄvel e potenciadora de uma economia circular.
The production of oysters in aquaculture is an economic activity established in many countries, and during the production process and consumption, it generates huge quantities of oyster shell, becoming an important waste. This work maps the environmental use of this waste. Patent mapping was carried out on a Worldwide European basis, using the OrbitÂź software, and it shows that China and Korea are the countries with the highest number of patents. The most used technologies for oyster shell are in natura (74%), followed by calcination (11%) and chemical treatments (6.9%). The largest environmental uses included wastewater treatment (32.4%), removal of heavy metals (10.8%), treatment of water bodies/water quality (9.5%) and gas treatment (9.1%). The uses show that the technologies focus essentially on the reuse of this waste as a sustainable solution and enhance a circular economy.
The production of oysters in aquaculture is an economic activity established in many countries, and during the production process and consumption, it generates huge quantities of oyster shell, becoming an important waste. This work maps the environmental use of this waste. Patent mapping was carried out on a Worldwide European basis, using the OrbitÂź software, and it shows that China and Korea are the countries with the highest number of patents. The most used technologies for oyster shell are in natura (74%), followed by calcination (11%) and chemical treatments (6.9%). The largest environmental uses included wastewater treatment (32.4%), removal of heavy metals (10.8%), treatment of water bodies/water quality (9.5%) and gas treatment (9.1%). The uses show that the technologies focus essentially on the reuse of this waste as a sustainable solution and enhance a circular economy.
Description
Keywords
Casca de ostra Tratamento de ĂĄguas e esgotos Economia circular Oyster shell Water treatment and sewage Circular economy
Citation
Pessoa, K., Salgado, R., Mata, A. M. & Quintella, C. (2019). Casca de ostra: TendeÌncias recentes dos usos ambientais visando aÌ economia circular. Cadernos de ProspecçaÌo â Salvador, 12(4), p. 849-864