摘要
围绕天然纤维素的资源化利用和水体重金属治理问题,在传统废水重金属处理方法的基础上,基于天然纤维素的结构特点,展开介绍了改性纤维素吸附剂。综述了天然纤维素改性方法以及改性纤维素吸附剂对于水体中重金属离子的去除效果。通过文献可知:利用化学法从天然原料中提取纤维素的同时对纤维素进行化学改性,制备阳离子型纤维素吸附剂,既能高效地,有选择性地处理水体中的Cu、Zn、Hg、Cr、Cd等主要重金属阳离子,并且能减少化学药剂的使用量和使用种类,降低成本,简化处理工序,避免二次污染,实现循环利用。
This paper focuses on the resource utilization of natural cellulose and the treatment of heavy metals in water bodies.Based on the traditional methods for the treatment of heavy metals in wastewater,the modified cellulose adsorbent is introduced based on the structural characteristics of natural cellulose.The modification methods of natural cellulose and the effect of modified cellulose adsorbent on the removal of heavy metal ions in water bodies are reviewed.It is clear from the literature that the use of chemical methods to extract cellulose from natural raw materials while chemically modifying the cellulose to prepare cationic cellulose adsorbents can efficiently and selectively treat the major heavy metal cations such as Cu,Zn,Hg,Cr and Cd in water bodies,as well as reduce the amount and type of chemicals used,lower costs,simplify the treatment process,avoid secondary pollution and achieve recycling.
作者
王英
哈斯
Wang Ying;Ha Si(Couege of Chemistry and Environment,Hohhot Minzu College,Hohhot 010051,China)
出处
《山东化工》
CAS
2023年第4期79-81,共3页
Shandong Chemical Industry
基金
内蒙古自治区高等学校科学研究项目(No.NJZZ21055)。
关键词
改性纤维素
重金属
吸附剂
modified cellulose
heavy metal
adsorbent
