[1]潘凯玲,魏钰轩,邱晨,等.有机物对泥膜复合PNA-MBBR挂膜启动的影响[J].中国给水排水,2024,40(9):69-76.
　PANKai-ling,WEIYu-xuan,QIUChen,et al.Effects of Organic Matter on Start-up of Sludge-Biofilm Hybrid Partial Nitritation Anammox in Moving Bed Biofilm Reactor[J].China Water & Wastewater,2024,40(9):69-76.
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有机物对泥膜复合PNA-MBBR挂膜启动的影响

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第40卷 期数: 2024年第9期 页码: 69-76 栏目: 出版日期: 2024-05-01
Title:
Effects of Organic Matter on Start-up of Sludge-Biofilm Hybrid Partial Nitritation Anammox in Moving Bed Biofilm Reactor
作者:
潘凯玲1,2， 魏钰轩1， 邱晨1， 郑志强1， 韩家乐1， 杜凯3， 刘振4， 唐明跃4， 毕学军1,2
（1.青岛理工大学 环境与市政工程学院，山东 青岛 266520；2.青岛理工大学 城镇污水处理与资源化国家地方联合工程中心，山东 青岛 266520；3.青岛市水务事业发展服务中心，山东 青岛 266071；4.青岛首创瑞海水务有限公司，山东 青岛 266011）
Author(s):
PAN　Kai-ling1，2， WEI　Yu-xuan1， QIU　Chen1， ZHENG　Zhi-qiang1， HAN　Jia-le1， DU　Kai3， LIU　Zhen4， TANG　Ming-yue4， BI　Xue-jun1，2
（1. School of Environmental and Municipal Engineering， Qingdao University of Technology， Qingdao 266520， China； 2. National and Local Joint Engineering Center for Urban Sewage Treatment and Resource Recycling， Qingdao University of Technology， Qingdao 266520， China； 3. Qingdao Water Affairs Development Service Center， Qingdao 266071， China； 4. Qingdao Capital Ruihai Water Co. Ltd.， Qingdao 266011， China）
关键词:
厌氧氨氧化;  有机碳源;  移动床生物膜反应器;  短程硝化;  微生物群落结构
Keywords:
anaerobic ammonium oxidation;  organic carbon;  moving bed biofilm reactor;  partial nitritation;  microbial community structure
摘要:
以活性污泥为种泥，投加空白悬浮载体，采用间歇曝气和低溶解氧的运行策略，探究进水有机物（R1的COD=500 mg/L，COD/N=1.25；R2用作对照，COD/N=0）对一体式泥膜复合短程硝化-厌氧氨氧化移动床生物膜反应器（PNA-MBBR）启动性能的影响。138 d的运行结果表明，R1的脱氮性能明显高于R2。R1的氮去除负荷（NRR）为0.23 kg/（m3·d），厌氧氨氧化的脱氮贡献率高达92.70%，而R2的NRR仅为0.06 kg/（m3·d）。在整个运行期间R1平均出水NO2--N浓度为87.42 mg/L，明显低于R2的154.87 mg/L，且R1填料中生物膜厚度为（351.76 ± 67.93） μm，远高于R2的（148.96 ± 44.48） μm。高通量测序结果表明有机物的存在改变了R1的微生物群落结构，其絮体污泥和生物膜样品的微生物多样性均低于R2。Nitrosomonas在R1中的相对丰度远低于R2，NOB只在R1和R2第一阶段样品中被检出。Thauera在R1中的相对丰度高于R2，但R2中的反硝化菌属多样性高于R1。可见，低COD/N进水条件可实现厌氧氨氧化与反硝化的有效耦合，有利于PNA-MBBR系统的快速启动和总氮去除。
Abstract:
The effects of organic matter (R1: COD=500 mg/L, COD/N=1.25； R2: control, COD/N=0) on the start-up performance of one-stage sludge-biofilm hybrid partial nitritation anammox moving bed biofilm reactor (PNA-MBBR) were investigated by adding blank suspension carrier. The results showed that the nitrogen removal performance of R1 reactor was obviously better than that of R2 reactor. The nitrogen removal rate (NRR) of R1 was 0.23 kg/(m3·d), and the nitrogen removal contribution of anammox was up to 92.70%, while the NRR in R2 was just 0.06 kg/(m3·d). During the whole operation period, the average effluent NO2--N concentration of R1 was 87.42 mg/L, which was much lower than that of R2 (154.87 mg/L). The biofilm thickness of R1 [(351.76±67.93) μm] was also significantly thicker than that of R2 [(148.96±44.48) μm]. High-throughput sequencing showed that organic matter affected the microbial community structure of R1. The microbial diversity of R2 was higher than in R1, no matter in floc or biofilm samples. The relative abundance of Nitrosomonas in R1 was lower than that in R2. NOB was only detected in the samples of R1 and R2 in phase 1. Thauera had a higher relative abundance in R1 than in R2, but the diversity of denitrifying bacteria in R1 was lower than in R2. These results indicated that the influent with low COD/N ratio was beneficial for the rapid start?up and nitrogen removal of PNA-MBBR system.

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更新日期/Last Update: 2024-05-01