| 引用本文: | 李冬,苏庆岭,梁瑜海,吴青,张杰.CANON颗粒污泥高效脱氮及处理生活污水实验研究[J].哈尔滨工业大学学报,2015,47(8):79.DOI:10.11918/j.issn.0367-6234.2015.08.016 |
| LI Dong,SU Qingling,LIANG Yuhai,WU Qing,ZHANG Jie.Efficient nitrogen removal from domestic wastewater by CANON granular sludge[J].Journal of Harbin Institute of Technology,2015,47(8):79.DOI:10.11918/j.issn.0367-6234.2015.08.016 |
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| 摘要: |
| 为研究全程自养脱氮(CANON)颗粒污泥高效脱氮及处理生活污水的可行性,应用SBR反应器,首先在高氨氮条件下,通过搅拌快速启动CANON颗粒污泥,然后通过提高污泥质量浓度短时间内快速提升脱氮效能,最后研究了该工艺在生活污水中应用的可行性.结果表明：CANON颗粒污泥在40 d内成功启动,126 d颗粒粒径为760 μm,负荷达1.01 kg/(m3d),多糖与蛋白质比值变化与粒径增长相关；通过外加颗粒污泥,77 d内总氮去除负荷迅速提高到3.22 kg/(m3d)；在处理生活污水实验中实现了氮素和有机物的同步去除,可以有效应用于常温生活污水脱氮. |
| 关键词: 全程自养脱氮 颗粒污泥 高效脱氮 生活污水 胞外聚合物 断面上升气速 |
| DOI：10.11918/j.issn.0367-6234.2015.08.016 |
| 分类号:X703.1 |
| 基金项目:国家自然科学基金(51222807)；国家科技重大专项-水专项(2012ZX07202-005)；北京市长城学者支持计划项目. |
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| Efficient nitrogen removal from domestic wastewater by CANON granular sludge |
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LI Dong1, SU Qingling1, LIANG Yuhai1,WU Qing1, ZHANG Jie1,2
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（1. Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering (Beijing University of Technology), 100124 Beijing, China; 2. State Key Laboratory of Urban Water Resource and Environment (Harbin Institute of Technology), 150090 Harbin, China）
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| Abstract: |
| The feasibility of CANON granular sludge for efficient nitrogen removal from domestic wastewater was investigated in SBR. Firstly, CANON granular sludge was started by stirring under high ammonia concentration conditions, then granular sludge was increasingly added to improve the performance of nitrogen removal. Finally, the feasibility for domestic wastewater treating was investigated. The results show that CANON granular sludge could start-up within 40 days, the size of granular sludge reached 760 μm and the total nitrogen removal rate reached 1.01 kg/(m3d) within 126 days. A linear relationship between the ratio of polysaccharide and protein and the particle size growth was found. The total nitrogen removal rate increased rapidly to 3.22 kg/(m3d) within 77 days by adding granular sludge. Simultaneous removal of nitrogen and COD proved that the CANON granular sludge could be applied as an efficient approach for treating domestic wastewater. |
| Key words: CANON granular sludge efficient nitrogen removal domestic wastewater EPS section rising gas velocity |
