Management of contaminated or potentially contaminated areas - The case of Fazenda de Itaqui drainage basin, surrounded by glazed ceramics industries in Santa Gertrudes, Brazil (preliminary results)

摘要

The region of Santa Gertrudes, situated 180 km from the city of Sao Paulo, Brazil, is responsible for about 50% of Brazilian production of glazed ceramics covering (about 16 millions m~2/month). Since some decades ago, the industries of this region have produced glaze and pigment/coloring wastes and part of these wastes had been inadequately disposed on soil and lakes or ponds of Fazenda de Itaqui drainage basin, causing their contamination. This work attempts to the studies that have been done by CETESB - Environmental Agency of state of Sao Paulo and USP - University of Sao Paulo. This research has contributed to understand the consequences of the industrialization into geochemical and hydrological-hydrogeological cycles of Fazenda de Itaqui drainage basin. All these situations and actions are included in the management of Santa Gertrudes - Cordeiropolis - Rio Claro ceramics industry region, which is a plan of contaminated or potentially contaminated area management, supported by CETESB (legal and state sphere), ceramics industries trade union of Santa Gertrudes and civil society, with the participation of universities (the scientific sphere). This interaction, involving the main social agents, is necessary to the interdisciplinary optics of the resolution of conflicting interests and environmental problems. The results presented in this paper are preliminary (first phase of the project) and include management techniques and actions, in parallel to the environmental diagnosis and monitoring of Fazenda de Itaqui drainage basin.