| 基于短程反硝化厌氧氨氧化的低碳源城市污水深度脱氮特性 |
| 摘要点击 1705 全文点击 623 投稿时间：2019-07-16 修订日期：2019-10-18 |
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| 中文关键词 城市污水 短程反硝化 厌氧氨氧化(ANAMMOX) 深度脱氮 颗粒污泥 |
| 英文关键词 municipal wastewater partial-denitrification ANAMMOX advanced nitrogen removal granular sludge |
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| 中文摘要 |
| 短程反硝化厌氧氨氧化是一种新型生物脱氮技术，应用于城市污水深度脱氮有望大幅降低外碳源投加量.本研究接种厌氧氨氧化污泥，考察了短程反硝化厌氧氨氧化的深度脱氮性能与污泥特性.结果表明，接种厌氧氨氧化污泥可迅速启动短程反硝化厌氧氨氧化系统，在进水COD/TN为2.19±0.08时，出水TN浓度为（4.82±1.84）mg·L-1，实现了低碳源污水深度脱氮.系统粒径大于0.20 mm的污泥占86.16%，污泥实现了颗粒化，有助于厌氧氨氧化菌在系统内的有效持留.将短程反硝化厌氧氨氧化深度脱氮应用于城市污水处理厂二沉池出水深度脱氮，可降低外碳源投加量，同时可降低污水处理厂硝化池耗氧量. |
| 英文摘要 |
| Partial-denitrification coupled with ANAMMOX is a novel biological nitrogen removal technology, which is expected to significantly reduce the external carbon source dosage for advanced nitrogen removal from municipal wastewater. In this study, ANAMMOX sludge was inoculated to investigate advanced nitrogen removal performance and sludge characteristics in a partial-denitrification/ANAMMOX reactor. The results showed that inoculation of ANAMMOX sludge could quickly start the partial-denitrification/ANAMMOX reactor. The effluent total nitrogen concentrations were (4.82±1.84) mg·L-1 with a chemical oxygen demand of 2.19±0.08. Sludge particles larger than 0.20 mm accounted for 86.16% in the reactor. This meant that granular sludge was formed, which was conducive to good retention of ANAMMOX bacteria in the reactor. The external carbon source dosage and the oxygen requirement for nitrification can be reduced by applying partial-denitrification coupled with ANAMMOX to advanced nitrogen removal from the effluent of secondary clarifier in municipal wastewater treatment plants. |
