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Lead remotion of automotive batteries recycling industry wastewater by the aquatic macrofit eichhornia crassipes

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Author(s): Marlise Schoenhals | Vanderlei Abele de Oliveira | Franciele Aní Caovilla Follador

Journal: Engenharia Ambiental : Pesquisa e Tecnologia
ISSN 1678-2178

Volume: 6;
Issue: 2;
Start page: 55;
Date: 2009;
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Keywords: Green house | Composting | Stabilization lagoon | Heavy metal

ABSTRACT
The objective of this work was to evaluate the efficiency of the lead absorption by the aquatic macrofit Eichhornia crassipes in the wastewater treatment of an automotive batteries recycling industry located at county of Paula de Freitas, state of Paraná, Brazil. For that, the relation of humid green mass of water hyacinth by solution volume was optimized and, in follow the method was employed in the industrial wastewater treatment. The results permitted to conclude that the lead and other metals (Fe, Cu, Zn e Cr) absorption efficiency depends straightly of the water hyacinth mass (g) by solution volume (L), being 40 and 50 g L-1 the more efficient relations showing equivalents results in wastewaters containing until 30 mg L-1 of contaminant. Factors as pH and temperature in the analyzed values no had an expressive influence. For the treatment of wastewater contaminated by lead of the small and mean industries which recycle automotive batteries, the utilization of water hyacinth is practicable in the optimized conditions. It´s necessary a refined study for the definition of the best alternative of treatment/final disposal of the water hyacinth biomass after the wastewater treatment.Key-words: green house, composting, stabilization lagoon, heavy metal.
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