Utilização de solos locais para tratamento de efluentes do refino de petróleo contendo metais


Autoria(s): Midugno,Rafael; Roisenberg,Ari; Viero,Antonio Pedro; Sanberg,Eduardo; Mirlean,Nicolai
Data(s)

01/10/2007

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