固定化细菌吸附铜、锌和镍最佳包埋条件的确定  

To Confirm the Optimal Entrapping Condition of the Immobilized Bacteria Beads Which Adsorbs Cuprum、Zinc and Nickel

作　　者：郭平[1] 郎兴华 郭鹏[3] 康春莉[1] 高红杰[1] 

机构地区：[1]吉林大学环境与资源学院环境科学系,长春130012 [2]辽宁省环境科学研究院,沈阳110031 [3]吉林燃料乙醇有限责任公司,吉林132101

出　　处：《环境保护科学》2009年第1期9-11,共3页Environmental Protection Science

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

摘　　要：以聚乙烯醇和海藻酸钠为包埋剂,将细菌进行包埋固定后,以吸附铜、锌和镍的能力为考察指标,从机械强度、传质性和耐酸性等方面综合考虑确定了固定化小球最佳配方。按照此最佳配方进行吸附能力验证实验,结果发现,该固定化小球对铜、锌和镍的吸附量分别达到0.9025mg/g、0.8635mg/g和0.5317mg/g,且机械强度、传质性和耐酸性都较好。In this study, two materials, namely, polyvinyl alcohol（PVA） and sodium alginate were used as entrapping agent to produce immobilized bacteria beads. The ability of adsorbing cuprum,zinc and nickel were taken as the review criterion, and comprehensively considering the aspects of the mechanical strength, penetrability and acid proof ect. , then the optimal conditions of entrapping were chosen. According to the optimal conditions of entrapping, the verification experiments were combined to carry OrL As a result, it was found that the capacity of the immobilized bacteria beads adsorbing cuprum, zinc and nickel separately attained to 0. 9025mg/g, 0. 8635mg/g and 0. 5317mg/g, and it was also observed that the mechanical strength, penetrahility and acid proof were preferable.

关 键 词：聚乙烯醇 固定化 细菌 铜 锌 镍 

分 类 号：X52[环境科学与工程—环境工程] TS278[轻工技术与工程—农产品加工及贮藏工程]