• 关键词：厌氧膜生物反应器  厌氧氨氧化  耦合  甲烷回收  自养脱氮

• 基金项目：国家重点研发计划（No.2017YFE0127300）；陕西省重点研发计划国际合作项目（No.2018KWZ-06）；陕西省创新团队项目（No.2019TD-025）

• 杨舒茗
• 西安建筑科技大学, 环境与市政工程学院, 西安 710055

• 雷振
• 西安建筑科技大学, 环境与市政工程学院, 西安 710055

• 黄兴园
• 西安建筑科技大学, 环境与市政工程学院, 西安 710055

• 王俊
• 西安建筑科技大学, 环境与市政工程学院, 西安 710055

• 李倩
• 西安建筑科技大学, 环境与市政工程学院, 西安 710055

• 陈荣
• 西安建筑科技大学, 环境与市政工程学院, 西安 710055

• 摘要：本研究分别启动了厌氧膜生物反应器（anaerobic membrane bioreactor，AnMBR）和部分亚硝化-厌氧氨氧化反应器（Partial Nitrification/Anammox，PN/A），两者达到稳态后耦合为"AnMBR+PN/Anammox"新系统，实现前段有机质甲烷化、后段自养脱氮的污水处理目的.耦合系统运行结果表明：化学需氧量（chemical oxygen demand，COD）在AnMBR的去除率为96%，其中80.3%的COD在此段转化为CH₄，Anammox内一定的反硝化作用进一步强化了COD去除，系统COD总去除率达97%以上；氮污染物经AnMBR处理后均以NH₄⁺-N形态存在，再经PN/A处理后，总氮（total nitrogen，TN）平均去除率达78%；系统出水COD和TN值分别低于13和11 mg·L^-1.因此，AnMBR-Anammox耦合系统在同步实现污水甲烷回收、自养脱氮、低碳氮排放方面具有显著优势，本研究结果为开发AnMBR-Anammox耦合新工艺提供了理论依据.

• Abstract：This study set-up an anaerobic membrane bioreactor (AnMBR) and a partial nitrification-anaerobic ammonia oxidation reactor (PN/Anammox), separately, and then two system were coupled to the "AnMBR+PN/Anammox" to achieve organics removal in AnMBR and post-autotrophic denitrification in PN/A. Results show that the COD removal efficiency in AnMBR was 96%, 80.3% of which was converted into CH₄. The total COD removal efficiency of the coupled system exceeded 97% due to the denitrification in PN/A unit. AnMBR converted nitrogen pollutants into NH₄⁺-N because of ammoniation. After PN/A treatment, the average TN removal efficiency was 78%. The COD and TN concentrations in effluent were lower than 13 and 11 mg·L^-1, respectively. The AnMBR-Anammox coupled system has significant advantages in simultanous wastewater methane recovery, autotrophic nitrogen removal and low carbon/nitrogen emission. The results of this study provide a theoretical basis for the development of the new AnMBR-Anammox coupling process.

• Key words：AnMBR  anammox  coupling process  biogas recovery  autotrophic nitrogen removal

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