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| 聚乙烯醇-海藻酸钠固定Microbacterium sp. S2-4的微环境分析 | |
| 引用本文： | 李海波,杨瑞崧,李培军,巩宗强,孙丽娜,孙铁珩.聚乙烯醇-海藻酸钠固定Microbacterium sp. S2-4的微环境分析[J].生态学杂志,2007,26(1):16-20. |
| 作者姓名： | 李海波 杨瑞崧 李培军 巩宗强 孙丽娜 孙铁珩 |
| 作者单位： | 1. 沈阳大学沈阳环境工程重点实验室,沈阳,110044 2. 上海交通大学环境科学与工程学院,上海,200030 3. 沈阳大学沈阳环境工程重点实验室,沈阳,110044;中国科学院沈阳应用生态研究所,沈阳,110016 4. 中国科学院沈阳应用生态研究所,沈阳,110016 |
| 基金项目： | 国家重点基础研究发展计划(973计划);辽宁省教育厅资助项目 |
| 摘 要： | 以聚乙烯醇(polyvinyl alcohol,PVA)和海藻酸钠(sodium alginates,Na·Alg)作为包埋载体,以五硼酸铵和氯酸铁、氯酸铝溶液作为交联剂,固定微杆菌Microbacterium sp. S2-4,制备得到固定化球形颗粒.利用扫描电子显微镜(SEM)分析了在去除污染地表水COD过程中固定化球形颗粒的微环境变化,指出物理阻隔、吸附和种群排斥联合作用是固定化微环境对不利外界环境的主要屏蔽机理;同时还指出了通过该方法制备得到的固定化颗粒存在的结构缺陷. |
| 关 键 词： | 固定化微生物 微环境 屏蔽 扫描电子显微镜 污染地表水 |
| 文章编号： | 1000-4890（2007）01-0016-05 |
| 收稿时间： | 2006-06-08 |
| 修稿时间： | 2006-07-16 |
Micro-environmental analysis of polyvinyl alcohol- and sodium alginate immobilized Microbacterium sp. S2-4 granules |
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| LI Hai-bo,YANG Rui-song,LI Pei-jun,GONG Zong-qiang,SUN Li-na,SUN Tie-heng.Micro-environmental analysis of polyvinyl alcohol- and sodium alginate immobilized Microbacterium sp. S2-4 granules[J].Chinese Journal of Ecology,2007,26(1):16-20. | |
| Authors: | LI Hai-bo YANG Rui-song LI Pei-jun GONG Zong-qiang SUN Li-na SUN Tie-heng |
| Abstract: | With polyvinyl alcohol and sodium alginate as immobilizing carriers, and borate ammonium, ferrite chlorate and aluminum chlorate as cross-linking reagents, the spherical granules of immobilized Microbacterium sp. S_2-4 were prepared, and their microenvironmental changes in the process of COD- removing from contaminated surface water were studied by scanning electron microscope (SEM). The results indicated that physical block, adsorption, and the expulsion by predominant microbial populations were the main factors shielding the positive effects of the granules. Some structural disfigurements of the immobilized granules were pointed out. |
| Keywords: | immobilized microbe micro-environment shielding scanning electron microscope contaminated surface water |
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