固定化细菌对废水中低浓度铅离子的吸附规律研究  

Studies on the Adsorption of Plumbum by Immobilization Bacteria

作　　者：郭鹏[1] 王瑾[2] 康春莉[2] 郭平[2] 高红杰[2] 

机构地区：[1]吉林燃料乙醇有限责任公司,吉林132101 [2]吉林大学环境与资源学院,长春130012

出　　处：《科学技术与工程》2008年第11期2910-2913,共4页Science Technology and Engineering

基　　金：国家自然科学基金(20077011);吉林大学创新基金(419070200046);博士后基金(20060390900)资助

摘　　要：系统研究了固定化细菌对废水中低浓度铅离子的最佳吸附条件。结果表明:固定化细菌对铅离子的最佳吸附条件是:吸附平衡时间为2h,pH值为6,吸附温度为40℃,离子浓度为1μmol/L;镉离子的存在能够影响固定化细菌对铅离子的吸附。Langmuir与Freundlich方程均适合描述固定化细菌吸附铅离子的热力学过程,Langmuir方程能更好地描述其吸附规律。The best condition of adsorption of plumbum ions by immobilized bacteria was systematically studied The results indicated that the adsorbent temperature is 40℃, mium ions. The thermodynamic best adsorption condition is that ions concentration is 1 μmol/L; study indicated that both Langm adsorbent balance time is 2 hour, pH value is 6, the adsorption was influenced by existence of cad- uir and Frendlich equation can describe the equilibrium of immobilized bacteria adsorb plumbum ions, and the Langmuir equation is better.

关 键 词：固定化 细菌 吸附 铅 

分 类 号：X705[环境科学与工程—环境工程]