A aqÃicultura como alternativa de reabilitaÃÃo ambiental para Ãreas mineradas na RegiÃo Metropolitana do Recife â RMR e Goiana/PE

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

Currently, the Mineral Industry seeks to support the sector in models of social and environmental sustainability, because of conservation policies and increasing social demands. To this end, with complex environmental management systems that enable the creation of appropriate conditions (recovery) for future use (rehabilitation) of the exploited area (degraded). Among the various alternatives for environmental remediation for flooded pits from the raging in the open, highlighting the aquaculture comes up in Brazil and the world. For the areas of study (Recife Metropolitan Region - RMR and Goiana/PE city) this reality can be proved by the survey about the planning of environmental recovery expected in RDAPs (Recovery of Degraded Area Plan) mining, where aquaculture is contemplated in 19% of the RMR RDAPs miners and 43% of the city of Goiana/PE RDAPs, between the years 2003 and 2007. Thus, this work (Dissertation) is a preliminary analysis of viable alternatives for aquaculture aimed at the rehabilitation of mined areas of aggregates (sand, clay and crushed stone) located in the study areas, through sustainable reuse of pits, seeing the insertion social (generation of employment &income) of the communities surrounding and/or riverine. In summary, the alternatives of aquaculture likely to environmental remediation for areas of study are classified acording to the level of preliminary feasibility, considering the natural limitations (abiotic, biotic and social) and technology available. For the geological own vocation, the megrims of the RMR and Goiana/PE are favourable as the technical and economic feasibility for deployment of fish and shrimp farming, marine and fresh-water. The cultivation of marine fish and shrimps is economically viable only for coastal megrims. The oyster farming is more suitable for beds of rivers dredged in estuarine areas. Concerning the clay mines, fish and shrimp farming with fresh-water species may be viable, however, cultivation of marine organisms there is no economic viability. The absence of quarries near the coast makes the use of pits to marine fish and shrimp farming. The oyster farming is inadvisable for them. When it comes to freshwater fish farming and freshwater shrimp farming, flooded pits and flooded quarries of the MRR present themselves in favour of the deployment of aquaculture projects. Because of the issues mentioned above, one can conclude that the aquaculture arises as a sustainable use of sequential and productive soil in the areas of study

ASSUNTO(S)

environmental rehabilitation engenharia de minas aqÃicultura mineraÃÃo de agregados aquaculture reabilitaÃÃo ambiental aggregates mining

ACESSO AO ARTIGO

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