Work

Desenvolvimento de um método empregando quitosana para remoção de íons metálicos de águas residuárias

Year: 2007

Type: article

Abstract: In this work a method was developed for removing metallic ions from wastewaters by co-precipitation of Cu 2+ , Pb 2+ , Cd 2+ , Cr 3+ and Hg 2+ with chitosan and sodium hydroxide solution.Solutions of these metallic ions in the range from 0.55 to 2160 mg L -1 were added to chitosan dissolved in 0.05 mol L -1 HCl.For the co-precipitation of metal-chitosan-hydroxide a 0.17 mol L -1 NaOH solution was added until pH 8.5-9.5.A parallel study was carried out applying a 0.17 mol L -1 NaOH solution to precipitate those metallic ions.Also, a chitosan solid phase column was used for removing those metallic ions from wastewaters.

Source: Química Nova

DOI: 10.1590/s0100-40422007000400022

Authors: Bruno Campos Janegitz, Bruna Cláudia Lourenção, Karina Omuro Lupetti, Orlando Fatibello-Filho

Institutions: Universidade Federal de São Carlos, Universidade de São Paulo, Instituto de Química de São Carlos

Language: Portuguese

Topic: Adsorption and biosorption for pollutant removal

Subfield: Water Science and Technology

Field: Environmental Science

Domain: Physical Sciences

SDGs: Clean water and sanitation, Responsible consumption and production

Open Access status: gold

Estimated APC paid: $330