| 基于ABR-MBR组合工艺不同进水C/N比对反硝化除磷性能的影响机制 |
| 摘要点击 1470 全文点击 548 投稿时间：2017-03-09 修订日期：2017-04-11 |
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| 中文关键词 ABR-MBR组合工艺 反硝化除磷 C/N比 影响因素 |
| 英文关键词 ABR-MBR combined process denitrifying phosphorus removal C/N ratio impact factor |
| 作者 | 单位 | E-mail | | 吴鹏 | 苏州科技大学环境科学与工程学院, 苏州 215009
江苏省水处理技术与材料协同创新中心, 苏州 215009 | wupengniu@126.com | | 程朝阳 | 苏州科技大学环境科学与工程学院, 苏州 215009
江苏省水处理技术与材料协同创新中心, 苏州 215009 | | | 沈耀良 | 苏州科技大学环境科学与工程学院, 苏州 215009
江苏省水处理技术与材料协同创新中心, 苏州 215009
江苏省环境科学与工程重点实验室, 苏州 215009 | | | 赵诗惠 | 苏州科技大学环境科学与工程学院, 苏州 215009
江苏省水处理技术与材料协同创新中心, 苏州 215009 | | | 吕亮 | 苏州科技大学环境科学与工程学院, 苏州 215009
江苏省水处理技术与材料协同创新中心, 苏州 215009 | |
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| 中文摘要 |
| 基于厌氧折流板反应器（ABR）微生物相分离及膜生物反应器（MBR）高效截留的特性，通过加设硝化液回流与污泥回流实现了ABR-MBR一体化反应器的循环联动，对连续流条件下调控进水COD浓度及COD/TN比条件下的反硝化除磷影响机制展开了研究.结果表明在5个不同进水C/N比下，ABR-MBR组合工艺最终出水溶解性PO43--P平均浓度分别为0.22、0.34、0.39、0.42和2.45 mg·L-1，低C/N比可获得更好的除磷效果，而C/N为4.8~6.0时，工艺对COD、TN和溶解性PO43--P去除率分别在87%、76%和93%以上.此外，在C/N为3.6~6.0时，ABR缺氧吸磷量与工艺对TN去除量呈良好的线性关系，提高进水C/N比有助于系统对TN的去除.最终获得进水C/N比为6时最有利于氮和磷的同步去除. |
| 英文摘要 |
| An ABR-MBR integrated reactor based on a combination of the anaerobic baffled reactor (ABR) with the microbial phase separation and membrane bioreactor (MBR) with high-effect entrapment was constructed and the circulation and interactivity of the combined process were examined by adding nitrate recycling and sludge reflux. By increasing the influent COD to adjust the COD/TN ratio, the influence of the mechanism on the denitrifying phosphorus removal performance under the condition of continuous-flow was investigated. The results showed that the average effluent concentration of soluble phosphorus under different influent C/N conditions were 0.22, 0.34, 0.39, 0.42, and 2.45 mg·L-1 and the low influent C/N ratio was beneficial to phosphate removal. When the influent C/N was 4.8-6.0, the average removal rates of COD, TN, and soluble PO43--P were more than 87%, 76%, and 93%. In addition, when the influent C/N ratio was 3.6-6.0, the removal of TN was proportional to the anoxic phosphorus uptake of ABR and conducive to the removal of TN after increasing the influent COD concentration. Higher C/N ratios of the influent improved the removal of TN at this stage. Finally, the C/N ratio of 6 was suggested to achieve the simultaneous removal of nitrogen and phosphorus. |
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