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| 改良型多级A/O-MBR组合工艺对低C/N比生活污水的强化除磷 | |
| 引用本文： | 郑凯,张子贤,吴勇,王万红,武福平.改良型多级A/O-MBR组合工艺对低C/N比生活污水的强化除磷[J].化工进展,2021,40(3):1675-1680. |
| 作者姓名： | 郑凯 张子贤 吴勇 王万红 武福平 |
| 作者单位： | 1.兰州交通大学环境与市政工程学院，甘肃 兰州 730070;2.甘肃省黄河水环境重点实验室，甘肃 兰州 730070;3.中国市政工程中南设计研究总院有限公司，湖北 武汉 430000 |
| 基金项目： | 国家重点研发计划(2016YFC0400703);甘肃省重点研发计划(17YF1NA056);国家自然科学基金(51768031) |
| 摘 要： | 采用多级厌氧/耗氧膜生物反应器（A/O-MBR）组合工艺对低C/N比生活污水进行处理时，存在总磷（TP）处理不达标的问题。通过改变污泥回流位置并增加内回流的改良型多级A/O-MBR组合工艺强化除磷，探究该工艺对低C/N比生活污水中TP的去除效果，并通过污泥静态分析研究其污泥反硝化除磷机理。结果表明，改良型多级A/O-MBR组合工艺对TP去除效果良好，平均去除率达到了86.36%，同时对化学需氧量（COD）、总氮（TN）及氨氮去除效果良好，均达到一级A排放标准。该工艺提高了聚磷菌及反硝化聚磷菌的比例，有效强化了对TP的去除。 |
| 关 键 词： | 多级厌氧/耗氧膜生物反应器 生活污水 低C/N比 反硝化除磷 |
| 收稿时间： | 2020-05-20 |
Improved multi-stage A/O-MBR combination process for removal of phosphorus of low C/N ratio domestic sewage |
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| ZHENG Kai,ZHANG Zixian,WU Yong,WANG Wanhong,WU Fuping.Improved multi-stage A/O-MBR combination process for removal of phosphorus of low C/N ratio domestic sewage[J].Chemical Industry and Engineering Progress,2021,40(3):1675-1680. | |
| Authors: | ZHENG Kai ZHANG Zixian WU Yong WANG Wanhong WU Fuping |
| Affiliation: | 1.School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, Gansu, China 2.Key laboratory of Yellow River Water Environment in Gansu Province, Lanzhou 730070, Gansu, China 3.Central and Southern China Municipal Engineering Design & Research Institute Co. , Ltd. , Wuhan 430000, Hubei, China |
| Abstract: | When the low-C/N ratio domestic sewage is treated by the multi-stage A/O-MBR combination process, there is a problem that the TP removal rate is low. The removal of the phosphorus is enhanced by the improved multi-stage A/O-MBR combination process of increasing internal reflux. The removal effect of modified multi-stage A/O-MBR combination process on TP in low C/N ratio domestic sewage was studied. The mechanism of removal of modified multi-stage A/O-MBR combined process sludge denitrifying phosphorus was investigated by static analysis of sludge. The results showed that the improved multi-stage A/O-MBR combination process had good TP removal efficiency with the average removal rate of 86.36%. At the same time, the effects of COD, TN and nitrogen removal were good, and all reached the first-class A emission standard. The proportion of polyphosphate bacteria and denitrifying phosphorus accumulating bacteria were increased by the improved multi-stage A/O-MBR combination process, and the removal effect of TP by the combined process was strengthened. |
| Keywords: | multi-level A/O-MBR domestic sewage low C/N ratio denitrifying phosphorus removal |
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