摘要
首次利用聚丙烯酰胺与壳聚糖形成的互融聚合物网络凝胶固定非活性的铜绿假单胞菌,并研究了这种新型的固定化微生物颗粒对Cu2+的吸附特性。该固定化微生物吸附剂表现出较好的吸附性能,对Cu2+的吸附很迅速,在40min内吸附基本达到平衡。对吸附动力学及平衡的研究表明,Cu2+在固定化微生物吸附剂上的吸附过程符合准二级动力学方程,吸附平衡符合Langmuir模型。
Semi-interpenetrating polymer network hydrogel based on polyacrylamide and chitosan was prepared to immobilize non-active P. aeruginosa. The immobilized P. aeruginosa beads were used to adsorb copper （Ⅱ）, and the novel biosorbent showed good adsorption performance. Copper （Ⅱ） biosorption was fast and equilibrium was attained within 40min. It was found that overall biosorption process was best described by pseudo-second-order kinetic model. Equilibrium data were well described by Langmuir adsorption isotherm.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2008年第11期41-44,共4页
Environmental Science & Technology
