Utilização de solos locais para tratamento de efluentes do refino de petróleo contendo metais
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2007Tipo
Outro título
Employment of local soils for treatment of metal-bearing wastewater from petroleum refinement
Assunto
Abstract
The employment of local soils for extraction of metallic elements was evaluated through batch tests to treat wastewaters generated in a petroleum refinery plant in southern Brazil. Clay and organic carbon content and clay mineralogy provide these soils, in principle, with moderate metal retention capacity. The following retention order was established: Cr3+ > Pb2+ > Cu2+ > Hg2+ > Cd2+, with total amount of metals retained varying from 36 to 65 meq kg-1. The results show the high efficiency of l ...
The employment of local soils for extraction of metallic elements was evaluated through batch tests to treat wastewaters generated in a petroleum refinery plant in southern Brazil. Clay and organic carbon content and clay mineralogy provide these soils, in principle, with moderate metal retention capacity. The following retention order was established: Cr3+ > Pb2+ > Cu2+ > Hg2+ > Cd2+, with total amount of metals retained varying from 36 to 65 meq kg-1. The results show the high efficiency of local soils for extracting metals from liquid effluents through sorption and precipitation processes under acid pH conditions. ...
Contido em
Química nova. São Paulo. Vol. 30, n. 5 (set./out. 2007), p. 1215-1217
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Nacional
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Artigos de Periódicos (39774)Ciências Exatas e da Terra (6068)
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