中文关键词厌氧膜生物反应器(AnMBR)剩余污泥餐厨垃圾厌氧消化运行性能 英文关键词anaerobic membrane bioreactor (AnMBR)sewage sludgefood wasteanaerobic digestionperformance

作者	单位	E-mail
戴金金	华东师范大学生态与环境科学学院, 上海市城市化生态过程与生态恢复重点实验室, 上海 200241	13120652086@163.com
牛承鑫	华东师范大学生态与环境科学学院, 上海市城市化生态过程与生态恢复重点实验室, 上海 200241
潘阳	华东师范大学生态与环境科学学院, 上海市城市化生态过程与生态恢复重点实验室, 上海 200241
陆雪琴	华东师范大学生态与环境科学学院, 上海市城市化生态过程与生态恢复重点实验室, 上海 200241 崇明生态研究院, 上海 200062
甄广印	华东师范大学生态与环境科学学院, 上海市城市化生态过程与生态恢复重点实验室, 上海 200241 上海污染控制与生态安全研究院, 上海 200092	gyzhen@des.ecnu.edu.cn
郑朝婷	华东师范大学生态与环境科学学院, 上海市城市化生态过程与生态恢复重点实验室, 上海 200241
张瑞良	华东师范大学生态与环境科学学院, 上海市城市化生态过程与生态恢复重点实验室, 上海 200241
何欣昱	华东师范大学生态与环境科学学院, 上海市城市化生态过程与生态恢复重点实验室, 上海 200241

中文摘要 采用厌氧膜生物反应器（anaerobic membrane bioreactor，AnMBR）进行剩余污泥与餐厨垃圾的共消化，研究其有机物的去除特性、产气性能和微生物群落组成等运行性能.结果表明，反应器运行过程中有机负荷（organic loading rate，OLR，以VS计）稳定在0.59～0.64 kg·（m³·d）^-1，挥发性固体（volatile solids，VS）降解率由单消化17.5%上升至共消化40%，COD截留率为95.3%.消化液含固率提高了3.9倍，最终CH₄体积分数稳定在60%，CH₄产量（以COD_added计）为78.7 mL·g^-1.跨膜压差（transmembrane pressure，TMP）和平均Flux分别维持在-3.1～-2.7 kPa和0.106 L·（m²·h）^-1，膜污染较轻.16S rRNA微生物多样性分析表明，AnMBR内部厌氧消化细菌主要是Proteobacteria（变形菌门）、Bacteroidetes（拟杆菌门）和Cloacimonetes（阴沟单胞菌门），产甲烷菌中的优势菌科为Methanobacterium（甲烷杆菌科），优势菌属为Methanosaeta（甲烷鬃毛菌属）和Methanolinea（甲烷绳菌属）.这将为AnMBR处理污泥及其它高含固率废物流的稳定性和运行性能研究提供有力的理论参考依据，进而为生物质资源化和能源危机提供有效解决途径. 英文摘要 A laboratory-scale anaerobic membrane bioreactor (AnMBR) was used for the co-digestion of sewage sludge and food waste to investigate its organic matter removal characteristics, biogas production performance, and microbial community composition. The results showed that the degradation rate of volatile solids (VS) increased from 17.5% for a single digestion to 40% for the total digestion, and that the COD removal was 95.3% when the organic loading rate (OLR) was stabilized at 0.59-0.64 kg·(m³·d)^-1. The solids content of the digested sludge increased by a factor of 3.9. The final CH₄ content was 60% and the CH₄ yield was 78.7 mL·g^-1 of COD_added. The transmembrane pressure (TMP) and average flux were maintained at between -3.1 and -2.7 kPa and 0.106 L·(m²·h)^-1, respectively, and membrane fouling was not serious. According to an analysis of the microbial diversity using 16S rRNA, the anaerobic bacterium in the AnMBR were mainly phylum Proteobacteria, Bacteroidetes, and Cloacimonetes, and the dominant methanogens included the Methanobacterium family, Methanosaeta genus, and Methanolinea genus. This study provides a strong theoretical basis for research into the stability and performance of AnMBRs for the co-treatment of sludge and other high-solid waste streams, and provided an effective solution for biomass resource utilization and the energy crisis.

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