eprintid: 14361
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/43/61
datestamp: 2023-11-10 03:28:56
lastmod: 2023-11-10 03:28:56
status_changed: 2023-11-10 01:56:42
type: article
metadata_visibility: show
creators_name: Altowayti, W.A.H.
creators_name: Othman, N.
creators_name: Al-Gheethi, A.
creators_name: Dzahir, N.H.B.M.
creators_name: Asharuddin, S.M.
creators_name: Alshalif, A.F.
creators_name: Nasser, I.M.
creators_name: Tajarudin, H.A.
creators_name: Al-Towayti, F.A.H.
title: Adsorption of Zn2+ from synthetic wastewater using dried watermelon rind (D-WMR): An overview of nonlinear and linear regression and error analysis
ispublished: pub
keywords: zinc, adsorption; chemistry; Citrullus; isolation and purification; kinetics; pH; procedures; statistical model; thermodynamics; wastewater; water management, Adsorption; Citrullus; Hydrogen-Ion Concentration; Kinetics; Linear Models; Thermodynamics; Waste Water; Water Purification; Zinc
note: cited By 12
abstract: 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.
date: 2021
publisher: MDPI
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85118849673&doi=10.3390%2fmolecules26206176&partnerID=40&md5=066a3e03c619e75f3273e3f8a48a0e8a
id_number: 10.3390/molecules26206176
full_text_status: none
publication: Molecules
volume: 26
number: 20
refereed: TRUE
issn: 14203049
citation:   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