Evaluation des impacts environnementaux et des risques associés : Etude de cas sur le gisement de Fer de Bekisopa, Madagascar

D. L. Rakotonirina M.; T. Razakamanana; D. Razafindrazanakolona A. D.; E. Ramanampisoa V.; Pius T. Mpiana; Jean Paul Koto-Te-Nyiwa Ngbolua; B. Robijaona Rahelivololoniaina

doi:10.59228/

Environmental impact assessment and associated risks: A case study of the iron deposit at Bekisopa, Madagascar

Authors

D. L. Rakotonirina M. Université de Fianarantsoa, Institut Supérieur des Sciences et Technologies, Fianarantsoa, Madagascar Author
T. Razakamanana Université de Toliara, Ecole Doctorale Géosciences, Physique, Chimie de l'Environnement et Systèmes HôtesPathogènes (GPCEHP), Toliara, Madagascar Author
D. Razafindrazanakolona A. D. Université de Fianarantsoa, Ecole Doctorale Géochimie et Chimie Médicinale (Géochimed), Fianarantsoa, Madagascar Author
E. Ramanampisoa V. Faculté des Sciences, Université de Fianarantsoa, Fianarantsoa, Madagascar Author
Pius T. Mpiana Université de Kinshasa, Faculté des Sciences & Technologies, Département des Chimie, Kinshasa, République Démocratique du Congo Author
Jean Paul Koto-Te-Nyiwa Ngbolua Université de Kinshasa, Faculté des Sciences & Technologies, Département de Biologie, Kinshasa, République Démocratique du Congo Author
B. Robijaona Rahelivololoniaina Université d’Antananarivo, Ecole Doctorale, Génie des Procédés et des Systèmes Industriels, Agricoles et Alimentaires (GPSIAA), Antananarivo, Madagascar ; Laboratoire de Valorisation des Ressources Naturelles, Antananarivo, Madagascar Author

DOI:

https://doi.org/10.59228/

Keywords:

Bekisopa, iron deposit, environmental impacts, mitigation, risks

Abstract

The study analyses the environmental impacts of mining the Bekisopa iron ore deposit, using a precise methodology. It identifies the direct impacts, focusing on the physical, atmospheric and aquatic spheres, in particular the risks associated with mine tailings and waste. In accordance with the MECIE decree (1997), the study highlights the consequences throughout the mining cycle. It anticipates and prevents risks, from the degradation of ecosystems to the alteration of water resources. Impacts and risks are classified by receiving environment, with an assessment of their quality. Recommendations are put forward for mitigating impacts and risks, focusing on minimising mining waste and its treatment, and engaging local stakeholders to raise awareness of the environmental issues involved in mining the Bekisopa iron ore deposit.