Geotechnical Engineering Journal of the SEAGS & AGSSEA ISSN 0046-5828
Vol. 46 No.4 December 2015
Reclamation project of a Brownfield site at Rio de Janeiro State, Brazil
M.C. Barbosa, A.R.M. Barboza de Oliveira and M.E.S. Marques
ABSTRACT: The paper presents the geotechnical solution proposed for remediation and further redevelopment of a Brownfield site from a bankrupted zinc processing industry. All installations were abandoned without a post closure technical plan, including a 1.2 million cubic meters mineral waste pile inside a 260,000 m2 liquid waste pond. Both structures were settled upon a soft clay deposit contaminated with Zn and Cd. The technical solution proposed involved the complete drainage of the liquid pond, accompanied by on site treatment, a hydraulic barrier of pump & treat wells and the construction of an engineered waste containment facility using the mineral solid waste as compacted earth fill material combined to geosynthetic products.
KEYWORDS: Contaminated soil, Waste containment, Soft clay, Reinforcement with geosynthetics
