壳聚糖/粉煤灰/高岭土的制备及其处理活性蓝模拟印染废水的研究  

Preparation of composites of chitosan/fly ash/kaolin for treatment of simulated dyeing wastewaters containing reactive blue

作　　者：陈彰旭[1,2] 辛梅华[1] 李明春[1] 许剑鹏[2] 林俞敏[2] 

机构地区：[1]华侨大学材料科学与工程学院,环境友好功能材料教育部工程中心,厦门361021 [2]莆田学院环境与生命科学系,莆田351100

出　　处：《化工新型材料》2013年第10期165-168,共4页New Chemical Materials

基　　金：国家自然基金青年基金(21103095);福建省高校服务海西建设重点项目(2009HX11);福建省教育厅A类项目(JA12288);莆田市科技计划项目(2012G05);福建省大学生创新训练项目(CXCY1206);莆田学院大学生创新项目(20号)

摘　　要：研究了壳聚糖/粉煤灰/高岭土复合材料的制备及其处理活性蓝模拟印染废水的工艺条件,正交试验结果显示,影响因素的大小顺序:pH>投加量>搅拌时间>复合材料的配比,最佳工艺条件下,脱色率大于97%。复合材料对活性蓝模拟印染废水的吸附遵循Langmuir等温吸附式和准二级速率方程。壳聚糖/粉煤灰/高岭土复合材料可以重复使用,重复7次后,脱色率仍可达92.24%。该研究结果为工业上处理印染废水提供了一定的参考价值。Composite materials of chitosan/fly ash/kaolin were prepared and used for the adsorption of simulated dyeing wastewaters containing reactive blue. The results of the orthogonal experiment indicated that the effect on removal for reactive blue was in the following order： pH 〉 dosage 〉 stirring time 〉 type of composite materials. The decolorization rate could get to more than 97% under the optimum conditions of adsorption, The adsorption behaviors of the nanocomposite showed that the adsorption kinetics and isotherms were in good agreement with pseudo-second-order equation and the Langmuir equation, respectively. The material was recycled for seven times, the decolorization rate for reactive blue reached 92.24%. The absorption study revealed that the composite provided the potential for the treatment of printing and dyeing wastewater in the industry.

关 键 词：壳聚糖 复合材料 活性蓝 吸附等温式 动力学模型 

分 类 号：X791[环境科学与工程—环境工程]