A GREEN METHOD FOR THE REMOVAL OF ZINC(II) IONS FROM WASTEWATER USING MODIFED BIOPOLYMERS

IF 0.8 Q4 MATERIALS SCIENCE, BIOMATERIALS

Progress on Chemistry and Application of Chitin and its Derivatives Pub Date : 2021-09-30 DOI:10.15259/pcacd.26.009

C. Jeyaseelan, Antil Jain, R. Jugade

引用次数: 0

Abstract

Zinc pollution in wastewater is a global problem because it is highly toxic. Zinc is commonly used in industries that transfer the water containing zinc directly into water sources, leading to pollution. Exposure to a high level of zinc causes major health problems. This study evaluated the adsorption of zinc ions from aqueous system using modified biopolymers of chitosan by crosslinking with sulphates using the batch adsorption method; the concentration was determined using atomic absorption spectrophotometry. The sulphate cross-linked chitosan (SCC) was characterised by several method. The effects of various experimental parameters such as pH, contact time, concentration, adsorbent dosage and temperature were investigated. Under the optimised conditions, the percentage efficiency for the removal of zinc(II) was up to 85%. Freundlich and Langmuir isotherms were used to analyse the equilibrium adsorption data along with kinetic studies. Various thermodynamic parameters have also been reported.

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一种利用改性生物聚合物从废水中去除锌离子的绿色方法

废水中的锌污染是一个全球性的问题，因为它具有很高的毒性。锌通常用于工业，将含锌的水直接转移到水源中，导致污染。暴露在高水平的锌中会导致严重的健康问题。研究了改性壳聚糖生物聚合物与硫酸盐交联对水中锌离子的吸附性能;采用原子吸收分光光度法测定其浓度。采用多种方法对硫酸盐交联壳聚糖(SCC)进行了表征。考察了pH、接触时间、吸附剂浓度、吸附剂用量、温度等实验参数对吸附效果的影响。在优化条件下，锌(II)的去除率可达85%。采用Freundlich等温线和Langmuir等温线分析了平衡吸附数据和动力学研究。各种热力学参数也被报道。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Progress on Chemistry and Application of Chitin and its Derivatives MATERIALS SCIENCE, BIOMATERIALS-

CiteScore

1.10

自引率

16.70%

发文量

期刊介绍： Progress in the Chemistry and Application of Chitin and its Derivatives is an annual journal focused on all aspects of production, modification, enzymology and application of chitin and its many derivatives, including chitosan. The journal publishes full-length papers as well as invited reviews. To be considered, papers must present original research that has not been published or accepted for publication elsewhere. The language of the journal will be English.