Utilização de solos locais para tratamento de efluentes do refino de petróleo contendo metais
Data(s) |
01/10/2007
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Resumo |
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. |
Formato |
text/html |
Identificador |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422007000500030 |
Idioma(s) |
pt |
Publicador |
Sociedade Brasileira de Química |
Fonte |
Química Nova v.30 n.5 2007 |
Palavras-Chave | #retention test #metal pollution #wastewater treatment |
Tipo |
journal article |