relation: https://khub.utp.edu.my/scholars/14361/
title: Adsorption of Zn2+ from synthetic wastewater using dried watermelon rind (D-WMR): An overview of nonlinear and linear regression and error analysis
creator: Altowayti, W.A.H.
creator: Othman, N.
creator: Al-Gheethi, A.
creator: Dzahir, N.H.B.M.
creator: Asharuddin, S.M.
creator: Alshalif, A.F.
creator: Nasser, I.M.
creator: Tajarudin, H.A.
creator: Al-Towayti, F.A.H.
description: Sustainable wastewater treatment is one of the biggest issues of the 21st century. Metals such as Zn2+ have been released into the environment due to rapid industrial development. In this study, dried watermelon rind (D-WMR) is used as a low-cost adsorption material to assess natural adsorbents� ability to remove Zn2+ from synthetic wastewater. D-WMR was characterized using scanning electron microscope (SEM) and X-ray fluorescence (XRF). According to the results of the analysis, the D-WMR has two colours, white and black, and a significant concentration of mesoporous silica (83.70). Moreover, after three hours of contact time in a synthetic solution with 400 mg/L Zn2+ concentration at pH 8 and 30 to 40 °C, the highest adsorption capacity of Zn2+ onto 1.5 g D-WMR adsorbent dose with 150 µm particle size was 25 mg/g. The experimental equilibrium data of Zn2+ onto D-WMR was utilized to compare nonlinear and linear isotherm and kinetics models for parameter determination. The best models for fitting equilibrium data were nonlinear Langmuir and pseudo-second models with lower error functions. Consequently, the potential use of D-WMR as a natural adsorbent for Zn2+ removal was highlighted, and error analysis indicated that nonlinear models best explain the adsorption data. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
publisher: MDPI
date: 2021
type: Article
type: PeerReviewed
identifier:   Altowayti, W.A.H. and Othman, N. and Al-Gheethi, A. and Dzahir, N.H.B.M. and Asharuddin, S.M. and Alshalif, A.F. and Nasser, I.M. and Tajarudin, H.A. and Al-Towayti, F.A.H.  (2021) Adsorption of Zn2+ from synthetic wastewater using dried watermelon rind (D-WMR): An overview of nonlinear and linear regression and error analysis.  Molecules, 26 (20).   ISSN 14203049     
relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85118849673&doi=10.3390%2fmolecules26206176&partnerID=40&md5=066a3e03c619e75f3273e3f8a48a0e8a
relation: 10.3390/molecules26206176
identifier: 10.3390/molecules26206176