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学者姓名：彭永臻
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Abstract ：
To investigate methods for improving the simultaneous partial nitrification-anammox and denitrification (SNAD) process for landfill leachate treatment, this study prepared a biochar/nano zerovalent iron modified polyurethane biocarrier (BZPU), which was confirmed to have excellent nitrogen adsorption capacity. The BZPUfilled carrier biospheres were used as carrier filler in a biological aerated filter biofilm reactor (BAFBZPU), operated in parallel with a control reactor (BAFPU) under continuous influent conditions for 207 days to treat landfill leachate and successfully establish the SNAD process. The BAFBZPU achieved a nitrogen removal rate (NRR) of 0.76 kg N/(m3-d) and a total nitrogen removal rate (TNRE) of 92.0 %, which were 7.43 % and 4.53 % higher than that of the control group, respectively. Additionally, BAFBZPU showed faster start-up speed, better resistance to shock loading, and a lower protein/polysaccharide (PN/PS) ratio, further indicating a superior biofilm structure. The modified biocarrier also exhibited excellent nitrogen adsorption capacity, creating a favorable substrate microenvironment. The introduction of iron significantly promoted both anammox and denitrification processes, leading to the enrichment of related microbial strains and the acceleration of nitrogen conversion, which in turn significantly enhanced the overall SNAD process and nitrogen removal rate. The rational use of BZPU as a biocarrier can enhance the cost-effectiveness of the SNAD process and provide a new perspective for the treatment of landfill leachate.
Keyword ：
Landfill leachate Landfill leachate Novel carriers Novel carriers Biofilm Biofilm SNAD SNAD Mainstream anammox Mainstream anammox
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| GB/T 7714 | Wu, Lina , Tian, Yinghao , Liu, Yufan et al. Enhancement of simultaneous partial nitrification anammox and denitrification nitrogen removal and biofilm formation by novel biochar/ nano zerovalent iron modified polyurethane biocarrier for treatment of landfill leachate [J]. | CHEMICAL ENGINEERING JOURNAL , 2025 , 511 . |
| MLA | Wu, Lina et al. "Enhancement of simultaneous partial nitrification anammox and denitrification nitrogen removal and biofilm formation by novel biochar/ nano zerovalent iron modified polyurethane biocarrier for treatment of landfill leachate" . | CHEMICAL ENGINEERING JOURNAL 511 (2025) . |
| APA | Wu, Lina , Tian, Yinghao , Liu, Yufan , Xu, Jianda , Wang, Chenxu , Zhang, Linhao et al. Enhancement of simultaneous partial nitrification anammox and denitrification nitrogen removal and biofilm formation by novel biochar/ nano zerovalent iron modified polyurethane biocarrier for treatment of landfill leachate . | CHEMICAL ENGINEERING JOURNAL , 2025 , 511 . |
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Abstract ：
Nutrient removal from wastewater is crucial for global wastewater recycling and sustainable reuse. However, traditional methods for nitrogen and phosphorus removal face limitations in terms of energy consumption, operational complexity and environmental impact. Here we develop a floc management strategy to integrate anammox and enhanced biological phosphorus removal (EBPR) processes in a single-stage hybrid system (biofilms and flocs). This integrated approach resolves the conflicts between anammox and EBPR processes concerning ecological niche and solid retention time, enabling ultraefficient nitrogen and phosphorus removal efficiencies of 97.7 +/- 1.3% and 97.4 +/- 0.7%, respectively, in low-carbon municipal wastewater treatment. Notably, anammox benefitted from substrate competition with endogenous denitrification (both nitrite and nitrate) with floc loss, resulting in a significant enrichment of anammox bacteria in biofilms (12.5%) under mainstream conditions. Meanwhile, controlling floc concentrations at around 1,000 mg l-1 could maintain low polyphosphate levels in flocs, effectively addressing the additional phosphorus removal burden imposed by the enrichment of phosphorus-accumulating organisms in biofilms. This work offers a transformative solution to the long-standing challenge of integrating anammox and EBPR, paving the way for more sustainable and energy-efficient nutrient removal in wastewater treatment.
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| GB/T 7714 | Dan, Qiongpeng , Zhang, Qiong , Wang, Tong et al. Floc management enables integrated anammox and enhanced biological phosphorus removal for sustainable ultra-efficient nutrient removal [J]. | NATURE WATER , 2025 . |
| MLA | Dan, Qiongpeng et al. "Floc management enables integrated anammox and enhanced biological phosphorus removal for sustainable ultra-efficient nutrient removal" . | NATURE WATER (2025) . |
| APA | Dan, Qiongpeng , Zhang, Qiong , Wang, Tong , Wang, Hanbin , Peng, Yongzhen . Floc management enables integrated anammox and enhanced biological phosphorus removal for sustainable ultra-efficient nutrient removal . | NATURE WATER , 2025 . |
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Abstract ：
为探究低C/N城镇污水处理在无外加碳源的情况下实现深度脱氮除磷的效能，试验以实际城镇生活污水为处理对象，搭建了日处理规模为100 m~3·d~(-1)的A~2/O-BCO前置反硝化除磷中试，并从中试快速启动、工况调整与优化、微生物群落分析等角度进行研究.结果表明，通过先在A~2/O单元与BCO单元中分别富集聚磷菌与硝化菌，再增加硝化液回流以富集反硝化除磷菌（DPAOs）的方式，可实现A~2/O-BCO前置反硝化除磷中试的快速启动.A~2/O单元厌氧/缺氧/好氧容积比调整为3∶5∶1，硝化液回流比设定为250%时，缺氧段对磷去除率的平均值达到95%，平均出水PO_4~(3-)-P浓度小于0.2 mg·L~(-1)，出水TN小于11 mg·L~(-1).通过分子生物学分析发现，除磷菌（PAOs）与硝化菌丰度显著提高，Candidatus Accumulibacter的相对丰度从原始种泥的2%增加到14%，已被证实具有反硝化聚磷功能的Dechloromonas的相对丰度从原始种泥的2%增加到7%,BCO单元中的生物膜上，Nitrosomonas的相对丰度为5.91%,Nitrospira的相对丰度为7.58%.
Keyword ：
前置反硝化除磷 前置反硝化除磷 快速启动 快速启动 无外加碳源 无外加碳源 低C/N城镇污水 低C/N城镇污水 中试规模 中试规模
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| GB/T 7714 | 周庆国 , 苏健 , 陈东旭 et al. A~2/O-BCO前置反硝化除磷中试的启动与优化运行 [J]. | 环境科学学报 , 2024 , 44 (03) : 13-22 . |
| MLA | 周庆国 et al. "A~2/O-BCO前置反硝化除磷中试的启动与优化运行" . | 环境科学学报 44 . 03 (2024) : 13-22 . |
| APA | 周庆国 , 苏健 , 陈东旭 , 彭永臻 . A~2/O-BCO前置反硝化除磷中试的启动与优化运行 . | 环境科学学报 , 2024 , 44 (03) , 13-22 . |
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Abstract ：
Achieving stable and high-rate partial nitrification (PN) remains a worldwide technical conundrum in lowstrength mainstream conditions. This study successfully achieved ultrarapid mainstream PN within 8 days under a saturated dissolved oxygen (DO) supply strategy, reaching a record-breaking PN rate of over 1.0 kg N m(- 3) d(- 1) treating municipal wastewater. Stable PN was maintained for over 200 days with an ultrahigh nitrite accumulation ratio of 98.5 +/- 0.9 %, resilient to seasonal fluctuations in temperature (16.0-25.6 degrees C) and load (NH4+-N, 40-80 mg N/L). Kinetics revealed a remarkable 159.1-fold increase in the maximum activity ratio of ammonia-oxidizing bacteria (AOB) to nitrite-oxidizing bacteria (NOB). The faster response of AOB to saturated DO stimulated its highest activity difference with NOB, contributing to the AOB (Nitrosomonas oligotropha) boom and the elimination of NOB groups (-99.9 %). Our results highlight the importance of promoting AOB rather than solely focusing on NOB suppression for initiating and stabilizing high-rate mainstream PN.
Keyword ：
Dissolved oxygen Dissolved oxygen Mainstream wastewater Mainstream wastewater NOB elimination NOB elimination Nitrite accumulation Nitrite accumulation Ammonium oxidation rate Ammonium oxidation rate
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| GB/T 7714 | Dan, Qiongpeng , Li, Xiyao , Zhang, Fangzhai et al. Saturated dissolved oxygen-driven high-rate and ultrastable partial nitrification in municipal wastewater [J]. | BIORESOURCE TECHNOLOGY , 2024 , 413 . |
| MLA | Dan, Qiongpeng et al. "Saturated dissolved oxygen-driven high-rate and ultrastable partial nitrification in municipal wastewater" . | BIORESOURCE TECHNOLOGY 413 (2024) . |
| APA | Dan, Qiongpeng , Li, Xiyao , Zhang, Fangzhai , Du, Rui , Li, Jialin , Wang, Tong et al. Saturated dissolved oxygen-driven high-rate and ultrastable partial nitrification in municipal wastewater . | BIORESOURCE TECHNOLOGY , 2024 , 413 . |
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Abstract ：
Anammox-based processes are pivotal for elevating nitrogen removal efficiency in municipal wastewater treatment. This study established a novel HF-EPDA system combined in-situ hydrolytic fermentation (HF) with endogenous partial denitrification (EPD) and anammox. Slowly-biodegradable organic matter (SBOM) was degraded and transformed into endogenous polymers for driving production of sufficient nitrite by EPD, further promoted the nitrogen removal via anammox process. Processes above formed positive feedback, guaranteeing the robustness and recoverability of system. After a 92-day suspension during operation, advanced nitrogen removal was still achieved with excellent nitrogen removal efficiency of 95.84 +/- 1.73 %, treating with actual domestic wastewater and synthetic nitrate wastewater. Candidatus Brocadia and Candidatus Competibacter were dominant bacteria on biofilms responsible for the anammox and EPD process respectively, while the main hydrolytic fermentation organisms norank_o SBR1031 was enriched in floc sludge. This study highlights the reliable potential for expanding anammox application with simultaneous improvement of SBOM utilization.
Keyword ：
Slowly-biodegradable organic matter (SBOM) Slowly-biodegradable organic matter (SBOM) Anammox Anammox Hydrolytic fermentation (HF) Hydrolytic fermentation (HF) Endogenous partial denitrification (EPD) Endogenous partial denitrification (EPD)
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| GB/T 7714 | Xie, Chen , Li, Xiyao , Zhang, Qiong et al. Achieving advanced nitrogen removal with anammox and endogenous partial denitrification driven by efficient hydrolytic fermentation of slowly-biodegradable organic matter [J]. | BIORESOURCE TECHNOLOGY , 2024 , 414 . |
| MLA | Xie, Chen et al. "Achieving advanced nitrogen removal with anammox and endogenous partial denitrification driven by efficient hydrolytic fermentation of slowly-biodegradable organic matter" . | BIORESOURCE TECHNOLOGY 414 (2024) . |
| APA | Xie, Chen , Li, Xiyao , Zhang, Qiong , Zhang, Lujing , Cao, Xiaoxin , Peng, Yongzhen . Achieving advanced nitrogen removal with anammox and endogenous partial denitrification driven by efficient hydrolytic fermentation of slowly-biodegradable organic matter . | BIORESOURCE TECHNOLOGY , 2024 , 414 . |
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Abstract ：
For low carbon-to-nitrogen ratio municipal wastewater, full utilization of carbon sources is positive in reducing carbon emissions and carbon source addition. This study evaluated and proposed appropriate anaerobic duration control to improve nitrogen and phosphorus removal performance in Denitrifying Phosphorus Removal and Partial Denitrification coupled with Anammox (DPR-PDA) system. Excessive anaerobic duration resulted in wasted carbon source, anaerobic stage should be stopped after carbon source had been utilized. Hydraulic Retention Time-Anaerobic (HRT-An) of R1 was shortened from 5h to 0.56h, while R2 was maintained at 5h. The removal efficiency of nitrate (NO3-) were 91.7% in R1 and 71.5% in R2. Peak of NO2- accumulation (Peak-NO2--N) during denitrification in R1 was 4.5 times than in R2. Candidatus_Brocadia as anammox bacteria was self-enriched, the abundance in R1 was 4.67 times than in R2. This provided a practical guide for optimization of wastewater treatment processes and application of anammox technology.
Keyword ：
Anammox bacteria self-enrichment Anammox bacteria self-enrichment Anaerobic duration Anaerobic duration Nitrite accumulation Nitrite accumulation Carbon source utilization Carbon source utilization
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| GB/T 7714 | Su, Yunlong , Li, Xiyao , Wang, Jiao et al. Effect of anaerobic duration on nitrogen and phosphorus removal and carbon source utilization in integrated denitrifying phosphorus removal and partial denitrification coupled with anammox system [J]. | JOURNAL OF CLEANER PRODUCTION , 2024 , 474 . |
| MLA | Su, Yunlong et al. "Effect of anaerobic duration on nitrogen and phosphorus removal and carbon source utilization in integrated denitrifying phosphorus removal and partial denitrification coupled with anammox system" . | JOURNAL OF CLEANER PRODUCTION 474 (2024) . |
| APA | Su, Yunlong , Li, Xiyao , Wang, Jiao , Du, Rui , Xue, Xiaofei , Shi, Yanwei et al. Effect of anaerobic duration on nitrogen and phosphorus removal and carbon source utilization in integrated denitrifying phosphorus removal and partial denitrification coupled with anammox system . | JOURNAL OF CLEANER PRODUCTION , 2024 , 474 . |
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Abstract ：
Anaerobic ammonia oxidation (Anammox) exhibits promise for wastewater treatment, but the enrichment of anammox bacteria (AnAOB) in municipal wastewater treatment plants is a significant challenge. This study constructed a novel Anoxic-Anaerobic-Oxic An aerobic-Oxic (AAnO) process with a pure biofilm anoxic zone fed with actual fluctuating municipal wastewater and operated for six months to enrich AnAOB at ambient temperature. High- throughput sequencing (HTS), qPCR, and fluorescence in situ hybridization showed that AnAOB were successfully enriched in the anoxic biofilms, reaching 1.56 % relative abundance on day 75 detected by HTS. During the period from day 130 to day 186, the anammox process contributed to 55.8 +/- 19.2 % of the nitrogen removal in the anoxic zone. Phylogenetic analysis revealed this AnAOB species was closely related to Candidatus Brocadia fulgida. . This study provides technical support for the application of anammox in mainstream wastewater.
Keyword ：
Biofilm Biofilm Partial denitrification Partial denitrification Fluctuating municipal wastewater Fluctuating municipal wastewater Ambient temperature Ambient temperature
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| GB/T 7714 | Chen, Guo , Li, Jianwei , Zhang, Shujun et al. Novel Anoxic-Anaerobic-Oxic process successfully enriched anammox bacteria under actual municipal wastewater [J]. | BIORESOURCE TECHNOLOGY , 2024 , 412 . |
| MLA | Chen, Guo et al. "Novel Anoxic-Anaerobic-Oxic process successfully enriched anammox bacteria under actual municipal wastewater" . | BIORESOURCE TECHNOLOGY 412 (2024) . |
| APA | Chen, Guo , Li, Jianwei , Zhang, Shujun , Gao, Xiaoyu , Gu, Changkun , Lv, Xintao et al. Novel Anoxic-Anaerobic-Oxic process successfully enriched anammox bacteria under actual municipal wastewater . | BIORESOURCE TECHNOLOGY , 2024 , 412 . |
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Abstract ：
Challenges in obtaining stable nitrite have impeded the use of anammox in municipal wastewater treatment. This study explored the feasibility of using sludge fermentation products as carbon source and selective nitrification inhibitor to supply nitrite via partial nitrification (PN) and partial denitrification (PD). PD was initiated within 15 days, achieving nitrite transformation rate of over 90 % with a carbon/nitrogen ratio of 3 and a reaction time of 0.75 h. The dominant genus, Romboutsia, increased in relative abundance from 4.1 to 35 %. Organic acids in sludge fermentation products, like acetate (200 mg/L) and propionate (400 mg/L), selectively suppressed nitriteoxidizing bacteria (NOB) more than ammonia-oxidizing bacteria (AOB), leading to PN. Combining anaerobic exposure with sludge fermentation products addition achieved PN with over 80.0 % nitrite accumulation. AOB increased tenfold in the long term, significantly outpacing NOB growth. This strategy simplifies difficulty of anammox application and shows broad application potential in municipal wastewater treatment.
Keyword ：
Short-chain fatty acids Short-chain fatty acids Carbon source Carbon source Microbial community Microbial community Nitrification inhibitor Nitrification inhibitor Nitrite accumulation Nitrite accumulation
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| GB/T 7714 | Liu, Jinjin , Wang, Rui , Qiu, Shengjie et al. Feasibility of double nitrite supply through partial nitrification and partial denitrification driven by sludge fermentation [J]. | BIORESOURCE TECHNOLOGY , 2024 , 414 . |
| MLA | Liu, Jinjin et al. "Feasibility of double nitrite supply through partial nitrification and partial denitrification driven by sludge fermentation" . | BIORESOURCE TECHNOLOGY 414 (2024) . |
| APA | Liu, Jinjin , Wang, Rui , Qiu, Shengjie , Peng, Yi , Peng, Yongzhen . Feasibility of double nitrite supply through partial nitrification and partial denitrification driven by sludge fermentation . | BIORESOURCE TECHNOLOGY , 2024 , 414 . |
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Abstract ：
The anoxic zone serves as the core functional unit in municipal wastewater treatment plants (MWWTPs). Unfortunately, in most cases, the downstream range of the anoxic zone is severely lacking in available organic carbon and thus contributes little to the removal of nutrients. This undesirable range is termed the "carbon-restricted anoxic zone", representing an insurmountable drawback for traditional MWWTPs. This study uncovers a previously overlooked role for the carbon-restricted anoxic zone: a hotspot for anaerobic ammonium oxidation (anammox). In a continuous-flow pilot-scale plant treating municipal wastewater (55 m(3)/d), virgin biocarriers were introduced into the carbon-restricted anoxic zone (downstream 25% of the anoxic zone with BOD5 of 5.9 +/- 2.3 mg/L). During the 517-day monitoring, anammox bacteria highly self-enriched within the biofilms, with absolute and relative abundance reaching up to (9.4 +/- 0.1) x 10(9) copies/g-VSS and 6.17% (Candidatus Brocadia), respectively. N-15 isotopic tracing confirmed that anammox overwhelmingly dominated nitrogen metabolism, responsible for 92.5% of nitrogen removal. Following this upgrade, the contribution ratio of the carbon-restricted anoxic zone to total nitrogen removal increased from 9.2 +/- 4.1% to 19.2 +/- 4.2% (P < 0.001), while its N2O emission flux decreased by 84.5% (P < 0.001). These findings challenge stereotypes about the carbon-restricted anoxic zone and highlight the multiple environmental implications of this newfound anammox hotspot.
Keyword ：
Nitrogen removal Nitrogen removal Anammox Anammox Carbon-restrictedanoxic zone Carbon-restrictedanoxic zone Biofilm Biofilm Municipal wastewater treatment plants Municipal wastewater treatment plants
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| GB/T 7714 | Zhao, Qi , Zhang, Liang , Li, Jianwei et al. Carbon-Restricted Anoxic Zone as an Overlooked Anammox Hotspot in Municipal Wastewater Treatment Plants [J]. | ENVIRONMENTAL SCIENCE & TECHNOLOGY , 2023 , 57 (51) : 21767-21778 . |
| MLA | Zhao, Qi et al. "Carbon-Restricted Anoxic Zone as an Overlooked Anammox Hotspot in Municipal Wastewater Treatment Plants" . | ENVIRONMENTAL SCIENCE & TECHNOLOGY 57 . 51 (2023) : 21767-21778 . |
| APA | Zhao, Qi , Zhang, Liang , Li, Jianwei , Jia, Tipei , Deng, Liyan , Liu, Qiyu et al. Carbon-Restricted Anoxic Zone as an Overlooked Anammox Hotspot in Municipal Wastewater Treatment Plants . | ENVIRONMENTAL SCIENCE & TECHNOLOGY , 2023 , 57 (51) , 21767-21778 . |
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Abstract ：
The impact of temperature on the biological removal of hydrogen sulfide (H2S) from air is critical to its effective ap-plication in cold regions or seasons. This study investigated the effect of seasonal temperature variations (7-30 degrees C) on the H2S removal performance of a biotrickling filter system, with an effective H2S elimination capacity of 98.1 g/m3/h (removal efficiency = 83.1 %) achieved at temperatures of 10-12 degrees C. Biofilm growth was found to be accelerated by increased secretion of extracellular polymeric substances, enhanced biofilm adhesion capacity and relatively high levels of elemental sulfur accumulation, which help to retain heat within the filter bed under cold conditions. High-throughput sequencing showed that the psychrotolerant sulfur-oxidizing bacterium (SOB) Metallibacterium was gradually enriched (54.8 %) at temperatures below 15 degrees C. The major pathways of sulfur metab-olism under low temperature conditions were determined based on the detection of enzymes related to sulfur metab-olism. Finally, a strategy to enrich Metallibacterium was proposed to promote the application of biodesulfurization under low temperature conditions.
Keyword ：
Low temperature strategy Low temperature strategy H2S removal H2S removal Psychrotolerant SOB Psychrotolerant SOB Seasonal temperature variations Seasonal temperature variations
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| GB/T 7714 | Jia, Tipei , Zhang, Liang , Li, Xiyao et al. Characteristics of biotrickling filter system for hydrogen sulfide removal with seasonal temperature variations: A strategy for low temperature conditions [J]. | SCIENCE OF THE TOTAL ENVIRONMENT , 2023 , 857 . |
| MLA | Jia, Tipei et al. "Characteristics of biotrickling filter system for hydrogen sulfide removal with seasonal temperature variations: A strategy for low temperature conditions" . | SCIENCE OF THE TOTAL ENVIRONMENT 857 (2023) . |
| APA | Jia, Tipei , Zhang, Liang , Li, Xiyao , Zhao, Qi , Peng, Yongzhen , Sui, Jun et al. Characteristics of biotrickling filter system for hydrogen sulfide removal with seasonal temperature variations: A strategy for low temperature conditions . | SCIENCE OF THE TOTAL ENVIRONMENT , 2023 , 857 . |
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