| 螺旋升流式反应器系统较长泥龄时运行效果及其流态释因 |
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| 引用本文： | 季铁军,罗固源,王丹云,许晓毅,朱亮.螺旋升流式反应器系统较长泥龄时运行效果及其流态释因[J].化工学报,2007,58(10):2613-2618. |
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| 作者姓名： | 季铁军 罗固源 王丹云 许晓毅 朱亮 |
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| 作者单位： | 重庆大学 |
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| 摘 要： | 结合螺旋升流式反应器（SUFR）的特性，通过对比试验分析SUFR系统在较长泥龄时（主要在32 d左右）营养物去除的工艺特点。试验结果表明，SUFR系统（θc=32 d）出水COD和TN分别小于40 mg·L-1﹑10 mg·L-1，SUFR系统（θc=32 d）除磷率随着泥龄的延长有一定的下降,但出水TP一直稳定在1 mg·L-1内， SUFR系统（θc=32 d）的SOUR值为10～18 mg·g-1·h-1。流态模拟结果表明，SUFR系统中单元反应器的推流流态容积利用率为63%。这说明SUFR系统反应器以活塞流为主要特征的流态特性有助于减轻较长泥龄对污水处理的负影响。该系统具有更宽的泥龄适宜范围。
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| 关 键 词： | 螺旋升流式反应器 长泥龄 营养物去除 推流 |
| 文章编号： | 0438-1157（2007）10-2613-06 |
| 收稿时间： | 2006-11-1 |
| 修稿时间： | 2006-11-01 |
Effect of prolonged sludge age on biological nutrient removal in spiral up-flow reactor system and flow pattern interpretatio |
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| JI Tiejun,LUO Guyuan,WANG Danyun,XU Xiaoyi,ZHU Liang.Effect of prolonged sludge age on biological nutrient removal in spiral up-flow reactor system and flow pattern interpretatio[J].Journal of Chemical Industry and Engineering(China),2007,58(10):2613-2618. |
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| Authors: | JI Tiejun LUO Guyuan WANG Danyun XU Xiaoyi ZHU Liang |
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| Abstract: | Combined with the characteristics of spiral up flow reactor（SUFR）system, the nutrient removal of the SUFR system with a prolonged sludge age was analyzed through test comparison The operation of the SUFR system（θc=32 d）showed that the effluent COD was less than 40 mg·L-1 and the effluent TN was less than 10 mg·L-1The removal of TP in the SUFR system（θc=32 d）was less than 1 mg·L-1, although the decrease of TP removal coupled with a longer sludge age was observedThe specific oxygen utilization rate (SOUR) of the SUFR system（θc=32 d）was in the range of 10～18 mg·g-1·h-1The results of CFD simulation showed that the volume ratio of plug flow reactors in the flow model was estimated to be about 63%, showing that the major flow pattern of the spiral up flow reactor was plug flowIt was indicated that the negative effect of a longer sludge age was compensated by the hydraulic characteristics of the SUFR, which was similar to plug flow reactorThe optimal sludge age range of the SUFR system could be wider. |
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| Keywords: | spiral up-flow reactor prolonged sludge age nutrient removal plug flow |
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