修饰壳聚糖微球用于含蛋白废水处理研究

采用反相悬浮法,以甲醛为预交联剂,环氧氯丙烷交联、氯乙酸羧化制备交联羧化壳聚糖微球,用红外光谱和扫描电镜对微球进行表征,并用于牛血清白蛋白的吸附研究。考察了吸附时间、溶液pH值、牛血清白蛋白的浓度、温度、氯化钠含量等因素对牛血清白蛋白吸附的影响。结果表明,羧化改性交联CTS微球不溶于酸和碱,对牛血清白蛋白具有良好的吸附性能,在pH5.0时,吸附在1h内可达平衡,吸附数据符合Langmuir等温方程。

Application of Modified Chitosan Microspheres to Treatment of BSA Containing Wastewater

To explore a new method to separate bovine serum albumin (BSA) from wastewater,a series of laboratory experiments were conducted,which consists of preparation of chitosan microsphere by an inverse phase suspension process,characterization of the microsphere structure by FTIR and SEM and finally,the parameters that affect adsorption of BSA on the prepared chitosan microspheres,such as adsorption time,pH and temperature,as well as initial concentrations of BSA and NaCl in the solution.The preparation process ...