Exploitations minières et politiques de gestion environnementale : utilisation de l'expertise canadienne en fermeture de mines pour le site de l'ancienne mine d'uranium de l'INB à Caldas (Minas Gerais, Brésil)
|Authors:||Peres Menezes, Mônica|
|Abstract:||Mining has been historically recognized as one of the most important sources of economic activity in the world. Environmental hazards are intrinsically related to this activity. New environmental policies and mining technologies are continually being discussed in many countries. Nowadays acid mine drainage and other waste streams are the biggest challenges for the worldwide mining industry. The generation of acid drainage at the uranium mine from the brazilian governmental company INB has been recognized as an environmental hazard to the Poços de Caldas region. Despite all the political and technological steps taken by this company, the environmental impacts are still a problem at the uranium mine. With the goal of solving the problems resulting from acid mine drainage in the mining sector, Canada has developed many policies and research programs. Some technological alternatives have been implemented and evaluated by the canadian government and mining companies. These alternatives are not yet 100% efficient and are not long-terme solutions. Monitoring for many years or centuries will be necessary. However, the environmental performance of the the canadian mining sector is notably better than brazilian mining sector. Consequently, all the steps realized by the canadian government and mining industry can be a good example to the brazilian mining sector. Some technological alternatives developed in Canada to minimize acid mine drainage generation can be evaluated by the brazilian government and applied to the environmental management of the INB uranium mine. The development of international environmental policies is also an important tool to minimize environmental problems in some countries whith limited capacity to invest in environmental technologies.|
|Document Type:||Thèse de doctorat|
|Open Access Date:||11 April 2018|
|Collection:||Thèses et mémoires|
All documents in CorpusUL are protected by Copyright Act of Canada.