| 剩余污泥回流至初沉池对A/O污水处理系统的影响 |
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| 引用本文： | 陈爱朝,张炯,钱亚芬,范南屏. 剩余污泥回流至初沉池对A/O污水处理系统的影响[J]. 中国给水排水, 2007, 23(12): 93-95 |
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| 作者姓名： | 陈爱朝 张炯 钱亚芬 范南屏 |
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| 作者单位： | 1. 杭州市排水有限公司,四堡污水处理厂,浙江,杭州,310020
2. 浙江省建设厅,城市建设处,浙江,杭州,310025 |
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| 摘 要： | 基于静态模拟试验结果，进行了将A／O处理工艺中二沉池剩余污泥按比例回流至初沉池的生产性试验，运行结果显示，这一措施能明显提高初沉池的沉淀效率，且当剩余污泥的回流比例为40％～60％时，初沉池对SS、COD等去除效果最佳，同时可提高A／O池进水的可生化性及处理能力，并降低浓缩池出泥含水率。该工艺运行稳定，可有效降低污水处理厂的总体运行成本。
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| 关 键 词： | 污水处理 A/O工艺 剩余污泥回流 初沉池 |
| 文章编号： | 1000-4602（2007）12-0093-03 |
| 修稿时间： | 2006-12-27 |
Influence of Excess Sludge Return to Primary Sedimentation Tank on A/O Sewage Treatment System |
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| CHEN Ai-chao,ZHANG Jiong,QIAN Ya-fen,FAN Nan-ping. Influence of Excess Sludge Return to Primary Sedimentation Tank on A/O Sewage Treatment System[J]. China Water & Wastewater, 2007, 23(12): 93-95 |
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| Authors: | CHEN Ai-chao ZHANG Jiong QIAN Ya-fen FAN Nan-ping |
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| Affiliation: | 1. Sibao Sewage Treatment Plant, Hangzhou Drainage Co. Ltd., Hangzhou 310020, China; 2. Urban Construction Division, Zhejiang Construction Department, Hangzhou 310025, China |
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| Abstract: | Based on the static simulation experiment, a full-scale test was conducted by returning in proportion excess activated sludge from secondary sedimentation tank to primary sedimentation tank in A/O process. The result shows that the efficiency of primary sedimentation tank can be obviously increased, and when the returned sludge ratio is between 40% and 60%, the removal effect of pollutants is the best. At the same time, the biodegradability of the influent and treatment capacity of the secondary treatment can be improved, and the water content of sludge from sludge thickener can be reduced. The process operates steadily and can effectively decrease the total operation cost of sewage treatment plant. |
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| Keywords: | sewage treatment A/O process excess sludge return primary sedimentation tank |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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