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Journal of Environmental Sciences 2019年第7期31卷 214-224页

作者： Fangmin Chen Xiang Li Yan Yuan Yong Huang School of Environmental Science and Engineering Suzhou University of Science and Technology National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology

In order to reduce the amount of NO_3^-–N generated by the anammox process, and alleviate the competition between denitrification and anammox for NO_2^-–N in a single reactor, the preference of S^0 for reacting with coexisting NO_2^-–N and NO_3^-–N in the sulfur autotrophic denitrifying(SADN) process and the coupling effect of short-cut SADN and the anammox process were studied. The results showed that S^0 preferentially reacted with NO_3^-to produce NO_2^-–N, and then reacted with NO_2^-–N when NO_3^-–N was insufficient, which could effectively alleviate the competition between SADN bacteria(SADNB) and anammox bacteria(An AOB) for NO_2^-–N. After 170 days of operation, coupling between short-cut S^0-SADN and the anammox process was first successfully achieved. SADNB converted the NO_3^-–N generated by the anammox process into NO_2^-–N, which was once again available to An AOB. The total nitrogen removal efficiency eventually stabilized at over 95%, and the effluent NO_3^-–N was controlled within 10 mg/L, when high NH_4^+–N wastewater was treated by the anammox process. Microbial community analysis further showed that Candidatus Brocadia and Thiobacillus were the functional microorganisms for An AOB and SADNB.

关键词： anammox Sulfur autotrophic denitrification with S0 as electron donor (S0-SADN) Coupling Enhanced nitrogen removal

Spatiotemporal distributions and environmental drivers of diversity and community structure of nosZ-type denitrifiers and anammox bacteria in sediments of the Bohai Sea and North Yellow Sea, China

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Journal of Oceanology and Limnology 2019年第4期37卷 1211-1228页

作者： CAI Youjun ZHANG Xiaoli LI Guihao DONG Jun YANG Anjing WANG Guangyu ZHOU Xiaojian College of Environmental Sciences and Engineering Yangzhou University Yangzhou 225000 China Key Laboratory of Coastal Environmental Processes and Ecological Remendation Yantai Institute of Coastal Zone Research Chinese Academy of Sciences Yantai 264003 China University of Chinese Academy of Sciences Beijing 100049 China Shenzhen Lightsun Technology Co. Ltd. Shenzhen 518000 China Department of Bioengineering School of Marine Science and Technology Harbin Institute of Technology Weihai 264209 China

Denitrification and anammox processes are major nitrogen removal processes in coastal ecosystems. However, the spatiotemporal dynamics and driving factors of the diversity and community structure of involved functional bacteria have not been well illustrated in coastal environments, especially in human-dominated ecosystems. In this study, we investigated the distributions of denitrifiers and anammox bacteria in the eutrophic Bohai Sea and the northern Yellow Sea of China in May and November of 2012 by constructing clone libraries employing nosZ and 16S rRNA gene biomarkers. The diversity of nosZ-denitrifier was much higher at the coastal sites compared with the central sites, but not significant among basins or seasons. Alphaproteobacteria were predominant and prevalent in the sediments, whereas Betaproteobacteria primarily occurred at the site near the Huanghe (Yellow) River estuary. anammox bacteria Candidatus Scalindua was predominant in the sediments, and besides, Candidatus Brocadia and Candidatus Kuenenia were also detected at the site near the Huanghe River estuary that received strong riverine and anthropogenic impacts. Salinity was the most important in structuring communities of nosZ-denitrifier and anammox bacteria. Additionally, anthropogenic perturbations (e.g. nitrogen overloading and consequent high primary productivity, and heavy metal discharges) contributed significantly to shaping community structures of denitrifier and anammox bacteria, suggesting that anthropogenic activities would influence and even change the ecological function of coastal ecosystems.

关键词： nosZ-denitrifier anammox community structure distribution anthropogenic perturbations

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有机物对anammox反应影响的研究进展

环境工程 2022年第1期40卷 190-195页

作者：张秋莹李亮边笛东北大学资源与土木工程学院沈阳110819

anammox是一种新兴经济节能的生物脱氮技术,与经典的硝化反硝化脱氮相比,具有占地面积较小,无须曝气节约能耗等优点。有机物是实际废水中普遍存在的污染物,其存在会对anammox产生影响。通过梳理近年来国内外有关有机物对anammox影响的... 详细信息

anammox是一种新兴经济节能的生物脱氮技术,与经典的硝化反硝化脱氮相比,具有占地面积较小,无须曝气节约能耗等优点。有机物是实际废水中普遍存在的污染物,其存在会对anammox产生影响。通过梳理近年来国内外有关有机物对anammox影响的研究概况,归纳了有机物在促进和抑制anammox进程两方面的原因和机制,同时阐述了通过降低进水负荷、调节基质亚硝态氮浓度和投加物质解除有机物对厌氧氨氧化反应抑制的方法,以期为实现大规模anammox工艺脱氮提供一定的理论依据。

关键词： anammox 有机物脱氮率抑制解除

Complete Nitrogen Removal through Integrating anammox and Autotrophic Denitrification in an UASB Reactor

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China Petroleum Processing & Petrochemical Technology 2020年第1期22卷 111-117页

作者： Guo Yadong Bai Xue Yu Haitong Li Xuechen Zhao Chaocheng Liu Chunshuang College of New Energy China University of PetroleumQingdao 266580 College of Chemical Engineering China University of PetroleumQingdao 266580

Complete nitrogen removal was achieved through integrating anammox and autotrophic denitrification in an UASB *** total nitrogen(TN)removal rate increased stepwise from 0.46 to 0.94 kg-N/(m3·d),with an effluent TN concentration of below 3.0 mg-N/L *** process is relatively insensitive to the nitrite to ammonium ratio,achieving complete nitrogen removal when their ratio in the influent varied in the range of *** added S0 quantity in the system could be utilized to adjust the competition between autotrophic denitrifiers and anammox ***-throughput sequencing technology indicated that Candidatus_Kuenenia and Thiobacillus were the functional strains for anammox and autotrphic denitrification process,respectively,in the studied *** result provides a theoretical and technical basis for the large-scale application of anaerobic ammonium oxidation process.

关键词： complete nitrogen removal anammox elemental sulfur UASB

ABBR启动anammox工艺的性能及内部流场结构研究

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水处理技术 2023年第8期49卷 98-103,109页

作者：孟皓运红颖汪涛河北工业大学能源与环境工程学院天津市清洁能源利用与污染物控制重点实验室天津300401

厌氧氨氧化(anammox)作为一种新兴的污水生物脱氮技术,在目前的水处理行业受到了广泛的关注。反应器的选型对于该工艺的快速启动起着至关重要的作用,而通过Fluent流体仿真模拟软件考察不同反应器的内部流场结构,从流体动力学结合微生物... 详细信息

厌氧氨氧化(anammox)作为一种新兴的污水生物脱氮技术,在目前的水处理行业受到了广泛的关注。反应器的选型对于该工艺的快速启动起着至关重要的作用,而通过Fluent流体仿真模拟软件考察不同反应器的内部流场结构,从流体动力学结合微生物生长状态初步分析反应器构型对anammox工艺的强化机理。本研究采用厌氧折流板反应器(ABR)及在其基础上改进的厌氧折流板生物膜反应器(ABBR)启动anammox工艺,对比研究两种反应器启动anammox工艺的性能。反应器控制条件在温度为25℃,HRT为24 h,进水氨氮和NO_(2)^(-)-N质量浓度均为50 mg/L。ABR启动anammox工艺需要49 d,ABBR启动anammox工艺仅需35 d,启动成功时ABR和ABBR的总氮去除率分别为86.11%和89.79%。结果表明,ABBR相比于ABR表现出显著更好的anammox工艺启动性能。本研究再运用Fluent软件模拟两种反应器的内部流场结构。结果显示,相比于ABR,ABBR具有更加丰富的流线,且其内部流场具有更加明显的紊流效果。ABBR流场结构特性保证了更佳的传质效果,且ABBR内部形成的生物膜又显著提高反应器对anammox菌的截留能力,从而缩短了反应器的启动周期,同时提高anammox工艺脱氮效率。

关键词： anammox 启动性能 ABBR ABR 流场结构

有氧条件下anammox反应及其在HABR反应器中实现

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大连理工大学学报 2007年第3期47卷 338-343页

作者：石利军杨凤林张兴文大连理工大学环境与生命学院

为了深入研究厌氧氨氧化（anammox）新型生物脱氮工艺，减轻水体氮素污染，防止水体富营养化，用无纺布填料进行了anammox细菌的培养和富集，并通过批武实验研究了DO存在时anammox反应的可行性及其在HABR反应器中的运行性能．实验结果... 详细信息

为了深入研究厌氧氨氧化（anammox）新型生物脱氮工艺，减轻水体氮素污染，防止水体富营养化，用无纺布填料进行了anammox细菌的培养和富集，并通过批武实验研究了DO存在时anammox反应的可行性及其在HABR反应器中的运行性能．实验结果表明，在有氧条件下能够发生anammox反应，反应器中同时存在好氧氨氧化菌和厌氧氨氧化菌的协同作用．D0浓度为1．0～6．47mg／L时，anammox细菌活性较低，NH4^＋-N和NO2^--N降解速率分别为1．52mg／（L·h）和1．83mg／（L·h）；当D0浓度小于1．0mg／L时，anammox细菌活性升高，降解速率分别达到3．40mg／（L·h）和3．98mg／（L·h）．anammox工艺可以在HABR反应器中实现，受D0、温度等因素的影响，TN去除负荷较低，只有0．01kg／（m^3·d）．

关键词： anammox DO 无纺布填料 HABR反应器

S2-对anammox工艺处理低氨氮污水的影响研究

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S2-对ANAMMOX工艺处理低氨氮污水的影响研究

作者：陈新源湘潭大学

学位级别：硕士

市政污水、黑臭水体等低氨氮污水虽然氨氮浓度低,但其碳氮比失调、水量大且含S等多种污染物,使用传统脱氮技术实现氨氮和总氮达标仍有一定困难。厌氧氨氧化（anammox）是解决这种低碳氮比污水脱氮问题的理想技术,但该技术在实际运用过... 详细信息

市政污水、黑臭水体等低氨氮污水虽然氨氮浓度低,但其碳氮比失调、水量大且含S等多种污染物,使用传统脱氮技术实现氨氮和总氮达标仍有一定困难。厌氧氨氧化（anammox）是解决这种低碳氮比污水脱氮问题的理想技术,但该技术在实际运用过程中易受基质浓度、S等多种因素限制,因此,本文以碳氮比失调的低浓度氨氮污水作为研究对象,通过接种本课题组前期在高浓度氨氮进水条件下培养的厌氧氨氧化污泥,采用逐步降低进水基质浓度和缩短水力停留时间两步调控法,在低浓度氨氮进水条件下,成功启动了厌氧氨氧化反应器;在此基础上通过批次实验和连续实验研究了S对厌氧氨氧化菌脱氮过程的短期与长期影响;并从污泥形态、EPS含量及成分、Heme c含量、功能酶活性、微生物群落结构、功能基因表达等多层面解析了在低浓度氨氮进水条件下S对厌氧氨氧化脱氮的影响机理。主要结论如下:（1）经过200 d的启动与调控,在进水氨氮浓度为30 mg/L,亚硝态氮浓度为39 mg/L,水力停留时间（HRT）为1.6 h,相应的氮容积负荷（NLR）为1.044 kg N/m/d的条件下,厌氧氨氧化反应器可稳定运行,氨氮和总氮的去除率分别为93.0%、73.1%,总氮去除负荷（NRR）为0.763 kg N/m/d。厌氧氨氧化菌属Candidatus＿Brocadia是反应器中的优势菌。（2）短期影响实验表明,随着S浓度增大,对低氨氮厌氧氨氧化体系脱氮抑制越大,其IC为19.60 mg/L,Heme c含量降低。当S的浓度为2、5、10 mg/L时,氨氮去除速率下降,但48 h后去除率仍可达到100%;当S的浓度为20 mg/L时,48 h后氨氮的去除率降至71.50%,且HZS（联氨合成酶）、Ni R（亚硝酸盐还原酶）、HZO（联氨氧化酶）的浓度降低了30%左右,但菌群可通过提高EPS的分泌量来抵御S的影响;当S的浓度达到40 mg/L时,菌体明显受损,HZS、Ni R、HZO降低了60%以上,其中HZS受抑制最严重,达到68%,出水氨氮浓度升高。（3）长期影响实验表明,连续加入2、5、10 mg/L的S使总氮去除率（NRE）从74.56%上升至89.50%,氨氮去除率无明显变化,出水硝态氮浓度逐渐减低,同时EPS和Heme c的含量分别下降了39.01%、17.27%;当连续加入20 mg/L的S时,NRE下降至76.20%,氨氮去除率下降至87.90%,EPS和Heme c的含量分别下降了47.80%、44.43%。（4）长期加入S后,反应器中厌氧氨氧化与硫自养反硝化反应同时发生,Thiobacillus为主要的硫自养反硝化功能菌。当S浓度为5 mg/L时,厌氧氨氧化相关基因hzo和hzs A的表达丰度较未投加S时有所提高;当加入的S浓度达到20 mg/L时,厌氧氨氧化菌属Candidatus＿Brocadia的相对丰度从未投加S时的26.80%下降至18.15%,hzo和hzs A的表达丰度随S浓度的增加而明显下降,Thiobacillus的相对丰度从0.09%上升至11.01%,反硝化相关基因nir S、nar G的表达丰度持续升高。（5）当停止加入S后,硫自养反硝化现象减弱,厌氧氨氧化脱氮率上升,反应器中残留的单质硫对厌氧氨氧化过程无明显影响,表明小于20 mg/L的S对厌氧氨氧化脱氮的影响是可逆的。

关键词：低浓度氨氮污水 anammox S2- 硫自养反硝化功能基因

Gene abundances of AOA,AOB,and anammox controlled by groundwater chemistry of the Pearl River Delta,China

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China Geology 2021年第3期4卷 463-475页

作者： Kun Liu Xin Luo Jiu Jimmy Jiao Ji-dong Gu Ramon Aravena Department of Earth Sciences Faculty of ScienceThe University of Hong KongHong Kong 999077China Department of Ecology and Biodiversity School of Biological SciencesThe University of Hong KongHong Kong 999077China Department of Earth and Environmental Sciences University of WaterlooWaterloo N2L 3G1Canada China Institute of Geo-Environment Monitoring China Geological SurveyBeijing 100081China

Ammonia-oxidizing archaea(AOA),ammonia-oxidizing bacteria(AOB),and anaerobic ammonia-oxidation(anammox)bacteria are very important contributors to nitrogen cycling in natural *** gene abundances of these microbes were believed to be well relevant to N-cycling in groundwater systems,especially in the Pearl River Delta(PRD)groundwater with unique high intrinsic ammonia *** this research,20 sediment samples from two in the PRD were collected for porewater chemistry analysis and quantification of N-cycling related genes,including archaeal and bacterial amoA gene and anammox 16S ribosomal Ribonucleic Acid(rRNA)*** Polymerase Chain Reaction(qPCR)results showed that gene abundances of AOA,AOB,and anammox bacteria ranged from 3.13×10^(5)to 3.21×10^(7),1.83×10^(4)to 2.74×10^(6),and 9.27×10^(4)to 8.96×10^(6)copies/g in the sediment of the groundwater system,*** bacteria and AOA dominated in aquitards and aquifers,respectively,meanwhile,the aquitard-aquifer interfaces were demonstrated as ammonium-oxidizing hotspots in the aspect of gene *** abundances of nitrifiers were analyzed with geochemistry *** between gene numbers and environmental variables indicated that the gene abundances were impacted by hydrogeological conditions,and microbial-derived ammonium loss was dominated by AOA in the northwest PRD and by anammox bacteria in the southeast PRD.

关键词： anammox Ammonium oxidizing archaea(AOA) Ammonium oxidation bacteria(AOB) Aquitard Groundwater Hydrogeological survey engineering Pearl River Delta China

Insights into simultaneous anammox and denitrification system with short-term pyridine exposure: Process capability, inhibition kinetics and metabolic pathways

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Frontiers of Environmental Science & Engineering 2021年第6期15卷 485-498页

作者： Shuhan Li Xin Zhou Xiwei Cao Jiabo Chen College of Environmental Science and Engineering Taiyuan University of TechnologyTaiyuan 030024China Innovation Center for Postgraduate Education in Municipal Engineering of Shanxi Province Taiyuan 030024China

In-depth knowledge on the role of pyridine as a bottleneck restricting the successful application of anammox-based process treating refractory coking wastewater remains *** this study,the effect of short-term pyridine addition on a simultaneous anammox and denitrification(SAD)system fed with 25–150 mg/L pyridine was *** short-term operation showed that the highest total nitrogen(TN)removal efficiency was achieved at 25–50 mg/L of *** the pyridine addition increased,the contribution of the anammox pathway in nitrogen removal decreased from 99.3%to 79.1%,while the denitrification capability gradually *** specific anammox activity(SAA)at 150 mg/L pyridine decreased by 56.7%of the maximum *** modified non-competitive inhibition model indicated that the 50%inhibitory concentration(IC_(50))of pyridine on anammox was 84.18 mg/L and the substrate inhibition constant(Ki)of pyridine for self-degradation was 135.19 mg/L according to the Haldane ***,high-throughput sequencing confirmed the abundance of Candidatus Kuenenia as the amount of anammox species decreased,while the amounts of denitrifiers and pyridine degraders significantly increased as the pyridine stress ***,the possible pathways of nitrogen bioconversion and pyridine biodegradation in the SAD system were elucidated through metagenomic analysis and gas chromatography/mass spectrometry *** findings of this study enlarge the understanding of the removal mechanisms of complex nitrogenous pyridinecontaining wastewater treated by the SAD process.

关键词： anammox Inhibition Metabolic pathway Microbial community Pyridine SAD

局部包埋anammox活性填料启动生物滤池

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环境工程学报 2015年第8期9卷 3835-3840页

作者：陶慕翔王猛胡希佳尚海源杨宏北京工业大学北京市水质科学与水环境恢复重点实验室北京100124

以厌氧氨氧化细菌（AAOB）混培物、聚乙烯醇（PVA）、碳酸钙和粒径2～4 mm的颗粒活性炭作为主要包埋材料,制备出局部包埋anammox活性填料.研究了该填料在生物滤池启动过程中的运行效果.实验结果表明,局部包埋固定化技术可使生物滤池在... 详细信息

以厌氧氨氧化细菌（AAOB）混培物、聚乙烯醇（PVA）、碳酸钙和粒径2～4 mm的颗粒活性炭作为主要包埋材料,制备出局部包埋anammox活性填料.研究了该填料在生物滤池启动过程中的运行效果.实验结果表明,局部包埋固定化技术可使生物滤池在较高的水力负荷和高反冲洗强度条件下仍保持稳定的AAOB生物量,滤池中AAOB的比生长速率为0.0027 h-,经过包埋固定后AAOB的增殖过程不会受到不利的影响且活性恢复较快.滤池内存在反硝化与ANAM-MOX耦合的现象.通过监测进出水的pH值变化可快速判断anammox工艺脱氮负荷的变化情况.用Logistic模型模拟局部包埋anammox生物滤池细菌增殖规律相关性极强,相关系数R值达0.983.局部包埋固定化技术可以有效地固定AAOB,有助于解决AAOB在大规模工程应用中发生的细菌流失等问题,具有一定的应用前景.

关键词： anammox 固定化局部包埋生物滤池