Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Removal of Pb2+ from Aqueous Media by Adsorption onto a Novel Coconut-Based Polyurethane-Activated Carbon Composite in a Fixed-Bed Column: Experimental Design and Breakthrough Curves Modelling

Rubie Mae D. Fernandez
,
Renz John R. Estrada
,
Tomas Ralph B. Tomon
ORCID logo ,
Roger Jr. G. Dingcong
,
Ruben F. Amparado Jr.
ORCID logo ,
Rey Y. Capangpangan
ORCID logo ,
Roberto M. Malaluan
,
Gerard G. Dumancas
ORCID logo ,
Alona A. Lubguban
,
Arnold C. Alguno
ORCID logo ,
Hernando P. Bacosa
,
Arnold A. Lubguban
* ORCID logo
Version 1 : Received: 5 September 2023 / Approved: 5 September 2023 / Online: 6 September 2023 (03:11:09 CEST)

A peer-reviewed article of this Preprint also exists.

Fernandez, R.M.D.; Estrada, R.J.R.; Tomon, T.R.B.; Dingcong, R.G., Jr.; Amparado, R.F., Jr.; Capangpangan, R.Y.; Malaluan, R.M.; Dumancas, G.G.; Lubguban, A.A.; Alguno, A.C.; Bacosa, H.P.; Lubguban, A.A. Experimental Design and Breakthrough Curve Modeling of Fixed-Bed Columns Utilizing a Novel 3D Coconut-Based Polyurethane-Activated Carbon Composite Adsorbent for Lead Sequestration. Sustainability 2023, 15, 14344. Fernandez, R.M.D.; Estrada, R.J.R.; Tomon, T.R.B.; Dingcong, R.G., Jr.; Amparado, R.F., Jr.; Capangpangan, R.Y.; Malaluan, R.M.; Dumancas, G.G.; Lubguban, A.A.; Alguno, A.C.; Bacosa, H.P.; Lubguban, A.A. Experimental Design and Breakthrough Curve Modeling of Fixed-Bed Columns Utilizing a Novel 3D Coconut-Based Polyurethane-Activated Carbon Composite Adsorbent for Lead Sequestration. Sustainability 2023, 15, 14344.

Abstract

This study presents a novel polyurethane-activated carbon composite (PACC) as an effective and sustainable adsorbent for treating lead-ion-contaminated waters. The PACC was characterized using SEM-EDX, FTIR, BET, XRD, and TGA to evaluate its physicochemical and thermal properties. Furthermore, the PACC was employed in an experimental column adsorption setup to investigate its adsorption performance and to develop a dynamic method suitable for industrial implementation. Parameters such as bed height (50, 100, 150 mm), flow rate (4, 6, 8 mL min-1), pH (2, 4, 6), and initial metal ion concentrations (10, 50, 100 mg L-1) were examined. The experimental data exhibited strong agreement with the Thomas and Yoon-Nelson models (R2 ≥ 0.96), indicating efficient adsorption mechanisms. Remarkably, the depleted adsorbent has the potential for facile regeneration without substantial loss in capacity. The PACC demonstrated excellent adsorption performance for lead ions in aqueous solutions in a fixed-bed column system. Thus, the novel PACC material holds potential for scalable application in industrial settings to address water pollution challenges, especially in regions with uncontrolled effluent discharge.

Keywords

polyurethane foam; activated carbon; adsorption; lead; heavy metals

Subject

Engineering, Chemical Engineering

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Download PDF

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.

Leave a public comment
Send a private comment to the author(s)
* All users must log in before leaving a comment
Views 0
Downloads 0
Comments 0
Metrics 0
Get PDF Cite Share 0
Bookmark BibSonomy Mendeley Reddit Delicious
×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.