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Bioaccumulation of Heavy Metals in Aquatic and Terrestrial Vegetation Tissues in Areas of Environmental Liabilities

Lizardo Cahuana and Osvaldo Aduvire
Wednesday, November 7, 2018
First presented: 
Planning for Closure 2018
Published paper

Considering that mining environmental liabilities are those installations, effluents, emissions, remains or deposits of waste produced by old abandoned mining operations that constitute a permanent and potential risk to the health of the population, the surrounding ecosystem and property. Therefore, they constitute one of the main sources of contamination by toxic elements, among them, the mobilization of metallic load in the acid drainages produced by the oxidation of sulfides. These discharges with contributions of heavy metals represent a potential risk of accumulation in the tissues of the surrounding plant species in areas of location of mining environmental liabilities.
The present work focuses on evaluating the bioaccumulation of heavy metals in the tissues of aquatic vegetation (macrophytes), mainly in species such as: Anomobryum prostratum, Marchantia Polymorpha L. and Bryophyta sp., and terrestrial vegetation in species such as: Stipa mucronata, Festuca dolichophylla and Cortaderia sp., in areas surrounding old abandoned mining facilities.
The actions of remediation of Mining Environmental Liabilities in Peru, allows to undertake studies to evaluate the effect of the bioaccumulation of metals in macrophyte species induced by the different concentrations of heavy metals present in the water column, in the case of terrestrial vegetation is evaluated the bioaccumulative effect of these due to the effect of the metals present in the soil.

Feature Author

Osvaldo Aduvire

Dr. Osvaldo Aduvire is a consultant with more than 30 years of experience in mining and environmental projects conducting environmental impact assessment, closure plans and design of acid water treatment plants. Osvaldo has a vast experience in technical-economic evaluation of mining projects, evaluation of occupational and environmental risks, geomechanical characterization of rock masses, design and reclamation of waste dumps and landfills, EIAs for mining and civil work projects, characterization of the acid/base generation potential of waste rock and mine waste, design of mining operations, sizing of machinery, geochemical characterization of mine effluents and pit lakes, passive treatment of acidic waters, application of bio-engineering to reclamation works, and preparation of mine closure plans.

Osvaldo Aduvire (Specialist in Geochemistry and Mine Clousure)
SRK Lima
SRK Australia