| 泥沙颗粒生长生物膜前后表面变化的实验研究 |
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| 引用本文： | 方红卫,赵慧明,何国建,陈明洪.泥沙颗粒生长生物膜前后表面变化的实验研究[J].水利学报,2008,39(Z2). |
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| 作者姓名： | 方红卫 赵慧明 何国建 陈明洪 |
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| 作者单位： | 清华大学水利系,清华大学水利系,清华大学水利系,北京农业大学土木水利学院 |
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| 基金项目： | 国家自然科学基金项目（10872110）;“十一五”国家科技支撑计划重点项目（2006BAB05B05-01） |
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| 摘 要： | 微生物吸附及生物膜的形成是自然界中普遍存在的现象之一，其对河道、水库等水体环境中泥沙颗粒形貌及性质的影响目前研究尚少。本文采用环境扫描电子显微镜观察泥沙颗粒生长生物膜前后的形貌情况，并用图像处理和梯度计算的方法对获得的灰度图片进行分析，发现颗粒的表面微形貌因生物膜的生成而发生较大变化。
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| 关 键 词： | 泥沙颗粒、表面形貌，生物膜，环境扫描电子显微镜，表面导数 |
| 收稿时间： | 2/9/2009 8:05:01 PM |
| 修稿时间： | 3/6/2010 12:43:09 AM |
Experiment of particles' morphology variation after biofilm growth on the sediment |
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| Fang Hongwei,and.Experiment of particles'' morphology variation after biofilm growth on the sediment[J].Journal of Hydraulic Engineering,2008,39(Z2). |
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| Authors: | Fang Hongwei and |
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| Affiliation: | Dept. of Hydraulic Engineering,,, |
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| Abstract: | Phenomenons of bacterial sorption and biofilm growth are an universal law in nature. However the research of its influence on sediment surface morphology and properties in aquatic environment has been largely ignored. In this paper, the environmental scanning electron microscope is used to capture the particle surface morphology variation after biofilm growth on sediment. The analysis of obtained gray images shows that the sediment surface morphology has changed greatly because of the biofilm growth. |
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| Keywords: | sediment surface morphology biofilm ESEM surface derivative |
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