Remoção de íons Pb2+ de solução de bateria automotiva por caulinita modificada com óxido de manganês

Química Nova

Ercila Pinto Monteiro²  Genilson Pereira Santana¹ 

[1] ,Universidade Federal do Amazonas Instituto de Saúde e Biotecnologia de Coari Coari AM ,Brasil

关键词: kaolinite;    adsorbent;    heavy metal;   

DOI  :  10.1590/S0100-40422012000600016

来源: SciELO

【 摘 要 】

Nine absorbents were prepared using a mixture of Amazonian kaolinite and MnO2 at three temperatures (600, 700 and 900 ºC) in order to retain Pb2+ ions contained in the battery solutions. The batch experiments carried out with the batteries used water for 3 h and the kinetic isotherm was fitted with the pseudo-second order Lagergren equation. Findings show that synthesized adsorbents AD4, AD5 and AD7 performed well in reducing the Pb2+ ion content from 0.36 to 0.00 mg g-1. The better performance for removing the Pb2+ ions occurred for adsorbents synthesized in the temperature range from 600 to 700 ºC.

【 授权许可】

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