摘要
膨润土是重要的吸附剂种类之一,通过对其进行改性,可提高其吸附性能。壳聚糖含有羟基、氨基等极性基团,将其用于进行膨润土改性可提高膨润土的吸附性能,拓宽该类物质在水处理领域的应用范围。目前改性方法主要有有机改性和插层改性等,改性后的膨润土可用于印染废水、焦化废水和重金属废水的处理,也可以用于其他废水的处理等。本文对壳聚糖改性膨润土吸附剂的改性方法及改性后用作吸附剂进行了综述,提出了改性膨润土技术的发展方向。
Bentonite is one of the important adsorbents,which can be improved its adsorption performance by surface modification.Chitosan containing hydroxyl and amino and other polar groups, have been used for the modification of bentonite to improving the adsorption properties of bentonite and broaden the range of application of the adsorbent in wastewater treatment.The methods of modification include organic modification and intercalation modification in present.The modified bentonite have been used in the treatment of dyeing wastewater,coal carbonization wastewater,heavy metal sewage and other wastewater.In this paper,the modification methods of chitosan modified bentonite adsorbent and its modification as adsorbent were reviewed.
出处
《石油化工应用》
CAS
2017年第3期1-5,共5页
Petrochemical Industry Application
基金
国家自然科学基金"高结垢采油污水中假单胞菌属微生物表面矿化机理及对策研究"
项目编号:21376189
关键词
壳聚糖
膨润土
固体吸附剂
废水处理
chitosan
bentonite
solid adsorbent
wastewater treatment
