[基于部分反硝化耦合厌氧氨氧化的低碳源城市污水处理深度脱氮特性]
[Advanced Nitrogen Removal Characteristics of Low Carbon Source Municipal Wastewater Treatment via Partial-denitrification Coupled with ANAMMOX].
作者信息
Ma Bin, Xu Xin-Xin, Gao Mao-Hong, Wei Yan, Peng Yong-Zhen
机构信息
National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, China.
School of Ecology and Environment, Hainan University, Haikou 570228, China.
出版信息
Huan Jing Ke Xue. 2020 Mar 8;41(3):1377-1383. doi: 10.13227/j.hjkx.201907135.
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 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.
部分反硝化耦合厌氧氨氧化是一种新型生物脱氮技术，有望显著减少城市污水深度脱氮所需的外部碳源投加量。本研究接种了厌氧氨氧化污泥，以考察部分反硝化/厌氧氨氧化反应器的深度脱氮性能和污泥特性。结果表明，接种厌氧氨氧化污泥可使部分反硝化/厌氧氨氧化反应器快速启动。出水总氮浓度为（4.82±1.84）mg·L，化学需氧量为2.19±0.08。反应器中粒径大于0.20 mm的污泥颗粒占86.16%。这意味着形成了颗粒污泥，有利于厌氧氨氧化菌在反应器中的良好留存。将部分反硝化耦合厌氧氨氧化应用于城市污水处理厂二沉池出水的深度脱氮，可降低外部碳源投加量和硝化所需的氧量。
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