| EGSB反应器中颗粒污泥床工作状况及污泥性质研究 |
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| 引用本文： | 任洪强,丁丽丽,陈 坚,伦世仪. EGSB反应器中颗粒污泥床工作状况及污泥性质研究[J]. 环境科学研究, 2001, 14(3): 33-36 |
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| 作者姓名： | 任洪强 丁丽丽 陈 坚 伦世仪 |
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| 作者单位： | 无锡轻工大学环境生物技术研究室,江苏无锡 214036 |
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| 基金项目： | 山东大学国家微生物重点实验室开发项目 |
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| 摘 要： | 研究了处理低浓度有机废水的EGSB反应器中颗粒污泥床状况及颗粒污泥的性质，结果表明，液体表面上升流速(Vup)是影响EGSB反应器效能的重要参数，当进水COD为600～800mg/L时，较佳的液体表面上升流速(Vup)为1.5～4.5m/h，在此条件下，EGSB反应器COD负荷为24.5～25.7kg/(m3·d)，COD去除率大于85%；同时还发现，经过一定时间的运行后，反应器中颗粒污泥粒径分布、沉降速度、胞外聚合物(ECP)等性质都发生了明显变化，颗粒污泥的平均粒径由0.85mm增加到1.78mm，平均沉降速度由41.2m/h提高到83.2m/h，而胞外聚合物(ECP)的含量则由接种污泥的32.5mg/g增加到57.8mg/g。
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| 关 键 词： | 厌氧颗粒膨胀床(EGSB) 颗粒污泥 性质 低浓度废水 厌氧处理 |
| 文章编号： | 1001-6929(2001)03-0033-04 |
| 收稿时间： | 2000-05-25 |
Study on the Characteristics of Granular Sludge Bed and Granular Sludge in EGSB Reactor |
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| REN Hong-qiang,DING Li-li,CHEN Jian and LUN Shi-yi. Study on the Characteristics of Granular Sludge Bed and Granular Sludge in EGSB Reactor[J]. Research of Environmental Sciences, 2001, 14(3): 33-36 |
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| Authors: | REN Hong-qiang DING Li-li CHEN Jian LUN Shi-yi |
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| Affiliation: | Lab of Environmental Biotechnology, Wuxi University of Light Industry, Wuxi 214036, China |
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| Abstract: | The characteristics of granular sludge bed and granular sludge in EGSB reactor for treating wastewater were studied. The result signified that superficial liquid up-flow velocity was the key factor affecting the function of EGSB reactor. With influent superficial liquid up-flow velocity of 1.5～4.5 m/h and COD concentration of 600～800 mg/L,the organic loading rate of 24.5～25.7 kg COD/m3*d and COD removal rate of above 85% were attained.Besides,after some time of operation,the value of granular sedimentation rate was increased from 41.2 m/h to 83.2 m/h,the granular size from 0.85 mm to 1.78 mm,and the content of ECP from 32.5 mg/g to 57.8 mg/g. |
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| Keywords: | expanded granular sludge bed (EGSB) granular sludge characteristics low-concentration wastewater anaerobic treatment |
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