MODELING IN FIXED BED COLUMN FOR BIOADSORPTION OF Cd2+ AND Pb2+ WITH COCOA SHELL

被引：1

作者：

Mayra Vera-Cabezas, Luisa ^{[1
]}

Bermejo-Campos, Daniel ^{[1
]}

Fernanda Uguna-Rosas, Maria ^{[1
]}

Garcia-Alvear, Nancy ^{[1
]}

Flores-Zamora, Marittza ^{[1
]}

Brazales, Diana ^{[1
]}

机构：

[1] Univ Cuenca, Ctr Estudios Ambientales, Apartado 01-01-168,Av 12 Abril & Agustin Cuevas, Cuenca, Provincia De Az, Ecuador

来源：

REVISTA INTERNACIONAL DE CONTAMINACION AMBIENTAL | 2018年 / 34卷 / 04期

关键词：

biosorbent; heavy metals; mathematical modeling; rupture curve; AQUEOUS-SOLUTIONS; REMOVAL; BIOSORPTION; NICKEL(II); IONS;

D O I：

10.20937/RICA.2018.34.04.05

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In this work the results of the biosorption of Pb+2 and Cd+2 with cocoa shell in fixed bed columns are presented. A hydrodynamic study was performed varying diameter and height of the column, as well as diameter and mass of biosorbent, to determine the best hydrodynamic conditions, which resulted in a flow through the column of 2.12 mL/min. Experimental data were adjusted to several models depending on the effluent volume, which describe the rupture curve for single component and two component systems. The removal percentages of Pb+2 and Cd+2 in single component systems are 91 and 90 %, respctively. In bicomponent systems (Pb+2-Cd+2) the removal percentages of lead and cadmium were 88 and 90 %, respectively. The dose-response model in bi and mono-component systems best reproduced the experimental rupture curves throughout the measured range.

引用

页码：611 / 620

页数：10

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