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| 缺氧折流板反应器的流态及污泥颗粒运动分析 | |
| 引用本文： | 吴慧芳,孔火良,王世和.缺氧折流板反应器的流态及污泥颗粒运动分析[J].环境污染与防治,2009,31(4). |
| 作者姓名： | 吴慧芳 孔火良 王世和 |
| 作者单位： | 1. 南京工业大学环境学院,江苏,南京,210009 2. 南京农业大学资源与环境科学学院,江苏,南京,210095 3. 东南大学市政工程系,江苏,南京,210096 |
| 摘 要： | 采用缺氧折流板反应器(ABR)处理印染废水,当HRT为8 h时,ABR内的下向导流室雷诺数(Re)为1.1,上向漉反应室Re为0.1,均为层流.污泥颗粒经绕流运动分析.下向导流室污泥颗粒受到的绕流阻力和重力均向下,只有浮力向上,由于污泥颗粒密度大于流体的密度,此时重力大于浮力,污泥颗粒不能在下向导流室内稳定停留,即没有污泥层,与观察到的试验现象一致.在上向流反应室的污泥颗粒受到的绕绕阻力向上,重力与绕漉阻力、浮力处于动态平衡时的污泥颗粒的临界粒径(dcr)为85 μm. |
| 关 键 词： | 缺氧折流板反应器 流态 污泥颗粒 运动 |
Flow pattern and sludge movement in the anoxic baffled reactor |
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| Wu Hui fang,Kong Huoliang,Wang Shihe.Flow pattern and sludge movement in the anoxic baffled reactor[J].Environmental Pollution & Control,2009,31(4). | |
| Authors: | Wu Hui fang Kong Huoliang Wang Shihe |
| Affiliation: | 1.College of Environment;Nanjing University of Technology;Nanjing Jiangsu 210009;2.College of Resources and Environmental Sciences;Nanjing Agricultural University;Nanjing Jiangsu 210095;3.Department of Municipal Engineering;Southeast University;Nanjing Jiangsu 210096 |
| Abstract: | A lab size anoxic baffled reactor (ABR) was employed for treatment of the textile dyeing wastewater. Operating at a hydraulic retention time of 8 h,Reynolds numbers of the diversion and biochemical reaction sections were 1.1 and 0.1,respectively,indicating the flow there were laminar. The directions of resistance and gravity were downward,while the direction of buoyancy was upward. Since the sludge particles were heavier than water,the gravity was larger than buoyancy. As expected,the sludge particles were ... |
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| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
