Parametric and Kinetic Study of Nitrate Removal from Water by Modified Chitosan Composite Beads

Author:

,Jamka Zainab N.,Mohammed Wadood T.,

Abstract

The contamination of water bodies with harmful pollutants considers an aggravating global problem. The current research focuses on a developing efficient adsorbed for removing nitrate ions from aqueous solutions. The study proposed modified chitosan-zeolite composite beads to enhance the performance of the adsorption process. The zeolite was used to increase the surface area, and Zirconium was loaded on the beads to promote the selectivity for nitrate anions. The adsorption mechanism was assessed by characterizing the beads and sorbate adsorbed beads utilizing X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FTIR), Field Emission Scanning Electron Microscopy (FESEM), and analysis with an energy dispersive X-ray analyzer (EDX). The experiments were conducted in a batch system, and the effect of key parameters like contact time, initial nitrate anion concentration, and adsorbent dosage on the adsorption performance was investigated. The results demonstrated that the highest removal of nitrate ions was determined to be 95.42% at 0.2 g of Cs-Ze-Zr adsorbent with an initial concentration of 50 mg/L and a contact time of 120 minutes. The maximum adsorption capacity of the nitrate ions on the manufactured bead was 80.15 mg/g. In addition, among the Freundlich, Langmuir, and Temkin isotherms, the isotherm equilibrium data were consistent with a Freundlich isotherm model. The kinetic data for adsorption were satisfactorily fitted by a pseudo-first order. Subsequently, the results distinctly indicated that the proposed adsorbed (Cs-Ze-Zr) could be employed fruitfully in removing nitrate ions, demonstrated through the remarkable removal efficiency and adsorption capacity obtained in the study.

Publisher

Lviv Polytechnic National University

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3