包埋微生物载体的结构与性能研究  

Structure and properties of gel-embedded microbe carriers

作　　者：李宗慧[1] 刘金泉[1] 赵雪莲[1] 屈佳玉[1] 孟胜[1] 

机构地区：[1]桑德集团有限公司,北京101102

出　　处：《现代化工》2012年第11期45-47,共3页Modern Chemical Industry

基　　金：国家水体污染控制与治理科技重大专项(2012ZX07318001);北京市科技计划项目(Z111100058911002)

摘　　要：对凝胶包埋型硝化菌载体LQ-1的溶胀-扩散性能、力学性能、硝化性能及储存性能等进行了全面考察,载体内部形成了互相贯穿的5μm左右的通孔结构,85%压缩比时压缩强度达0.48 MPa,10 min扩散进程完成95%以上,25℃时4 h氨氮去除量为58.1 mg/L,5℃时硝化菌以较低工作效率状态存活,储存45 d硝化性能保持率在90%以上。The swelling-diffusion behavior, mechanical performance, nitrification activity and storability of gel- embedded bio-carriers LQ-1 for nitrifying bacteria are studied in this study. The results show that the interpenetrating holing-through structure （about 5 μm） is formed in the immobilized nitrifying bacteria cubes. When the compression rate is 85% ,the compressive stress reaches 0. 49 MPa. More than 95% of the diffusion process can be completed in 10 minutes. Immobilized nitrifying bacteria can survive less efficiently in 5℃. Nitrification activity keeps above 90% after 45 days.

关 键 词：固定化微生物载体 硝化菌 凝胶包埋 环境扫描电镜 

分 类 号：Q819[生物学—生物工程]