Produção Nacional
Equilibrium and Kinetic Modelling of Adsorption: Evaluating the Performance of an Adsorbent in Softening Water for Irrigation and Animal Consumption
2019; Brazilian Society of Chemistry; Volume: 11; Issue: 6 Linguagem: Inglês
10.21577/1984-6835.20190123
ISSN1984-6835
AutoresAline Silva Ferreira, Antonébia A. Mota, Aldayr M. Oliveira, Francisco Idelbrando Lima Rodrigues, Sara N. Pacífico, José E. da Silva, B.T.O. Abagaro, Gilberto D. Saraiva, A.J. Ramiro de Castro, Raimundo Nonato Pereira Teixeira, V.O. Sousa Neto,
Tópico(s)Adsorption and biosorption for pollutant removal
ResumoCoconut bagasse, an agricultural solid waste, was used as a biosorbent for the removal of hardness after alkali treatment.The adsorption of Ca(II) was studied at pH 6.8.The analysis of the isotherms by the nonlinear model showed that the experimental data were best described by the Temkin model, which obtained a lower χ2 value.The maximum adsorption capacity by the Langmuir model was 30.20 mg.g -1 .The results using non-linear and linear methods to study equilibrium showed low discrepancy between them.The results show that the CHA adsorbent can be used for the removal of hardness from wastewater.
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