Cu adsorption in fixed bed column with three different influent concentration

Huang‐Mu Lo ,Min-Hsin Liu,Fang-Cheng Lo,Hsung-Ying Chiu,Kae‐Long Lin

doi:10.1051/e3sconf/201912003003

Abstract

Heavy metals from the electroplating wastewater might cause environmental pollution if not well treated. Generally, carbon adsorption might be used for the final step for further trace metals removal. This study investigated the heavy metal Cu adsorption in the fixed bed column with 1, 10 and 100 mg/L influent concentration. Results showed that KAB decreased as influent Cu concentration increased from 1 to 100 mg/L while N0 increased as influent concentration increased from 1 to 100 mg/L as can be found in Adams-Bohart model. R2 was found between 0.8579 and 0.9182. In Thomas model. KTH and q0 showed the similar trend as KAB and N0 in the Adams-Bohart model. KTH decreased as influent Cu concentration increased from 1 to 100 mg/L. q0 increased as influent Cu concentration increased from 1 to 100 mg/L. R2 of regression model was found between 0.9065 and 0.9836. In Yoon-Nelson model. KYN increased as influent Cu concentration increased from 1 to 100 mg/L while τ decreased as influent Cu concentration increased from 1 to 100 mg/L. Results showed that the three models of Adams-Bohart model, Thmoas model and The Yoon-Nelson model were suitable for the description of Cu adsorption by activated carbon.

Highlights

Heavy metals such as Cd, Cr, Cu, Ni, Pb and Zn in the wastewater effluent might cause the environmental and health risks if not appropriately treated [1,2,3]
Organic pollutants and metals adsorption were investigated by batch and fixed bed column to understand the removal of contaminants
Kavand et al [17] reported the adsorption of heavy metal ions including lead (Pb2+), Cadmium (Cd2+) and Nickel (Ni2+) onto a commercial activated carbon (AC) in single and multi-component aqueous fixed bed column

Summary

Introduction

Heavy metals such as Cd, Cr, Cu, Ni, Pb and Zn in the wastewater effluent might cause the environmental and health risks if not appropriately treated [1,2,3]. Organic pollutants and metals adsorption were investigated by batch and fixed bed column to understand the removal of contaminants. Chao et al [13] reported the biosorption of heavy metals on citrus maxima peel, passion fruit shell, and sugarcane bagasse for copper(II), cadmium(II), nickel(II), and lead(II) metal ion removal in a fixed-bed column. Chatterjee et al [14] reported adsorptive removal of potentially toxic metals (cadmium, copper, nickel and zinc) by chemically treated laterite: Single and multicomponent batch and column study. Kavand et al [17] reported the adsorption of heavy metal ions including lead (Pb2+), Cadmium (Cd2+) and Nickel (Ni2+) onto a commercial activated carbon (AC) in single and multi-component aqueous fixed bed column.

Materials and methods

Results and discussion

Conclusions