| 污泥龄对除磷亚硝化颗粒系统的影响 |
| |
| 引用本文： | 李冬,刘博,王文琪,曹美忠,李帅,张杰.污泥龄对除磷亚硝化颗粒系统的影响[J].环境科学,2019,40(11):5048-5056. |
| |
| 作者姓名： | 李冬 刘博 王文琪 曹美忠 李帅 张杰 |
| |
| 作者单位： | 北京工业大学水质科学与水环境恢复工程北京市重点实验室,北京,100124;哈尔滨工业大学城市水资源与水环境国家重点实验室,哈尔滨,150090;北京工业大学水质科学与水环境恢复工程北京市重点实验室,北京100124;哈尔滨工业大学城市水资源与水环境国家重点实验室,哈尔滨150090 |
| |
| 基金项目： | 北京市青年拔尖团队项目 |
| |
| 摘 要： | 以低C/N比生活污水为研究对象,接种成熟除磷颗粒污泥,探究泥龄对中低温度下(14～21℃)除磷亚硝化颗粒污泥的影响.结果表明,常温下(20℃±1℃),泥龄为30 d,曝气量为5 L·(h·L)~(-1)可实现除磷颗粒污泥中AOB的富集,NAR达到90%以上.当温度降低到15℃,泥龄为40 d时除磷性能恶化,颗粒结构变松散并伴有丝状菌生成.相对充足的氧气使亚硝化失稳,NAR下降至22. 4%. NOB不具备迅速适应环境变化的能力,采取12 d厌氧饥饿加排泥的策略,削弱了NOB的相对活性,迅速恢复了除磷亚硝化性能.批次实验显示温度从20℃下降到15℃,聚磷菌仍能保持较高的氧利用率,但AOB的SOUR下降了18%,此时是温度而不是溶解氧浓度制约了氨氧化能力.控制泥龄为30 d,同时降低曝气量为4 L·(h·L)~(-1),实现了低温下(15℃±1℃)除磷亚硝化颗粒污泥系统的稳定运行.
|
| 关 键 词： | 除磷亚硝化颗粒污泥 污泥龄 亚硝化积累率 比耗氧速率 溶解氧 |
| 收稿时间： | 2019/5/13 0:00:00 |
| 修稿时间： | 2019/6/13 0:00:00 |
Effects of Solid Retention Time on the Phosphorus Removal and Nitrosation Granules System |
| |
| LI Dong,LIU Bo,WANG Wen-qi,CAO Mei-zhong,LI Shuai and ZHANG Jie.Effects of Solid Retention Time on the Phosphorus Removal and Nitrosation Granules System[J].Chinese Journal of Environmental Science,2019,40(11):5048-5056. |
| |
| Authors: | LI Dong LIU Bo WANG Wen-qi CAO Mei-zhong LI Shuai and ZHANG Jie |
| |
| Affiliation: | Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China,Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China,Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China,Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China,State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China and Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China;State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China |
| |
| Abstract: | |
| |
| Keywords: | phosphorus removal and nitrosation granules solid retention time(SRT) nitrite accumulation rate specific oxygen uptake rate dissolved oxygen |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《环境科学》浏览原始摘要信息 |
|
点击此处可从《环境科学》下载全文 |
|
