摘要
难降解废水严重影响着生态环境和人们的健康安全,因此研究如何有效处理难降解废水极为紧迫。改性壳聚糖具有吸附容量高、成本较低、不产生二次污染等特点,且在处理含染料、重金属离子、油等难降解废水的研究中表现出良好的吸附效果,因此得到相关人员的广泛关注。基于现有对改性壳聚糖的研究,介绍了壳聚糖和改性壳聚糖的性能和特点,着重分析了壳聚糖与无机物负载的物理改性方法和接枝共聚法、交联法、复合改性法等的化学改性方法,根据改性壳聚糖在处理难降解废水中的应用,总结了其吸附机理,指出了未来研究方向。
The refractory wastewater seriously affects the ecological environment and people's health and safety.Therefore,it is extremely urgent to study how to effectively treat refractory wastewater.Modified chitosan has the characteristics of high adsorption capacity,low cost,no secondary pollution,etc.,and has shown good performance in the treatment of refractory wastewater containing dyes,heavy metal ions,oil and other pollutants.The adsorption effect has received wide attention from relevant personnel.Based on the existing research on modified chitosan,the performance and characteristics of chitosan and modified chitosan were introduced,the physical modification methods of chitosan and inorganic matter loading and the chemical modification methods of graft copolymerization,cross-linking,compound modification were emphatically analyzed.Based on the application of modified chitosan in the treatment of refractory wastewater,its adsorption mechanism was summarized,and the future research direction was pointed out.
作者
孟庆超
MENG Qing-chao(School of Municipal and Environmental Engineering,Shenyang Jianzhu University,Shenyang Liaoning 110168,China)
出处
《辽宁化工》
CAS
2022年第7期1016-1018,共3页
Liaoning Chemical Industry
关键词
改性壳聚糖
物理改性
化学改性
Modified chitosan
Physical modification
Chemical modification
