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Title: Synthesis, characterization and performance validation of hybrid cation exchanger containing hydrated ferric oxide nanoparticles (HCIX-Fe) for lead removal from battery manufacturing wastewater
Authors: Chanthapon N.
Praipipat P.
Sarkar S.
Padungthon S.
Jaroenapibal P.
Published in: Proceedings of Key Engineering Materials
Abstract: This study is aimed to synthesize, characterize and validate the performance of a novel hybrid nano-adsorbent for selective removal of lead from a battery manufacturing wastewater. The hybrid nano-sorbent, named as HCIX-Fe, was prepared by impregnating hydrated Fe (III) oxide (HFO) nanoparticles inside polymeric cation exchange resin containing negatively charged sulfonic acid (-SO3-) fixed functional groups. HCIX-Fe was characterized by SEM-EDX and XRD to confirm the distribution and determination of phase of HFO dispersed inside the hybrid nano-sorbent. Fixed-bed column runs with HCIX-Fe beads were carried out using wastewater from a battery manufacturing plant. The wastewater had a pH of 1.8 and contained of 3.5 mg/L of Pb2+ coexisted with 250 mg/L Ca2+ ions. The results have shown that HCIX-Fe column could treat lead-contaminated water up to 6,500 bed volumes (BVs) before the occurrence of breakthrough concentration of 0.2 mg/L Pb2+ resulting in a removal capacity of 6.85 mg Pb2+/ml of the HCIX-Fe bed. Under similar condition, adsorbent columns with cation exchange resin (C100), granulated activated carbon (GAC) and granulated activated carbon impregnated with HFO (GAC-Fe), could treat the same wastewater only until 400, 900 and 1,500 BVs, respectively. When compared with the parent adsorbents, impregnation by HFO greatly enhanced the Pb2+ removal capacity of C100 and GAC by 1,625% and 167%, respectively. Both HFO and high density of sulfonic acid (-SO3-) in the host cation exchanger are individually capable of selective removal of Pb2+ ions; however the hybrid material demonstrated a synergistic effect for Pb2+ removal through the Donnan Membrane effect. Due to amphoteric behavior of HFO, the HCIX-Fe could be regenerated and reused with 10 BVs of 2% HNO3 and 1% FeCl3·6H2O solution. © 2017 Trans Tech Publications.
Citation: Proceedings of Key Engineering Materials, (2017), 67- 71
Issue Date: 2017
Publisher: Trans Tech Publications Ltd
Keywords: Adsorbent
Granular activated carbon
ISBN: 9783035710045
ISSN: 10139826
Author Scopus IDs: 57192207174
Author Affiliations: Chanthapon, N., Department of Environmental Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand
Praipipat, P., Department of Environmental Science, Khon Kaen University, Khon Kaen, 40002, Thailand, Research Center for Environmental and Hazardou
Funding Details: The authors are grateful to financial supports from Graduate School Khon Kaen University, the young researcher development project of Khon Kaen University; Coordinating Center for Thai Government Science and Technology Scholarship Students (CSTS), Nationa
Corresponding Author: Padungthon, S.; Department of Environmental Engineering, Khon Kaen UniversityThailand; email:
Appears in Collections:Conference Publications [CE]

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