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学者姓名：彭永臻
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Abstract ：
The direct integration of anammox process into municipal wastewater treatment has caused widespread concern, but the lack of anammox seeds limited its real application. This study successfully cultivated anammox granules (322.0 mu m) from conventional activated sludge treating municipal wastewater. Through ultra -low floc sludge retention times of 8d, nitrifiers on flocs were eliminated and partial nitrification was realized. Furthermore, highly bacteria -enriched granules were initially formed, with Nitrosomonas and Ca. Competibacter 4 -fold higher than that of flocs. Specific staining results revealed the microbial interaction with Ca. Brocadia, considering that Ca. Competibacter and Nitrosomonas correspondingly identified in the inner and outer layers of granules. The percentage of Ca. Brocadia present on the granules increased substantially from 0.0 % to 3.0 %, accompanied by a nitrogen removal rate of 0.3 kg & sdot;m � 3 & sdot;d- 1. Our findings revealed a valuable reference for the anammox bacteria in -situ enrichment under mainstream conditions, which provides theoretical guidance for anammox-based processes practical application.
Keyword ：
Mainstream anammox Mainstream anammox Microbial segregation Microbial segregation Real municipal wastewater Real municipal wastewater Granular sludge Granular sludge Discharging flocs Discharging flocs
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| GB/T 7714 | Feng, Wanyi , Zhang, Qiong , Li, Jialin et al. Novel anammox granules formation from conventional activated sludge for municipal wastewater treatment through flocs management [J]. | BIORESOURCE TECHNOLOGY , 2024 , 396 . |
| MLA | Feng, Wanyi et al. "Novel anammox granules formation from conventional activated sludge for municipal wastewater treatment through flocs management" . | BIORESOURCE TECHNOLOGY 396 (2024) . |
| APA | Feng, Wanyi , Zhang, Qiong , Li, Jialin , Duan, Chenxue , Peng, Yongzhen . Novel anammox granules formation from conventional activated sludge for municipal wastewater treatment through flocs management . | BIORESOURCE TECHNOLOGY , 2024 , 396 . |
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Abstract ：
In this study, a SNAD-SBBR process was implemented to achieve ammonia removal and carbon reduction of mature landfill leachate under extremely low dissolved oxygen conditions (0.051 mg/L) for a continuous operation of 266 days. The process demonstrated excellent removal performance, with ammonia nitrogen removal efficiency reaching 100 %, total nitrogen removal efficiency reaching 87.56 %, and an average removal rate of 0.180 kg/(m(3)center dot d). The recalcitrant organic compound removal efficiency reached 34.96 %. Nitrogen mass balance analysis revealed that the Anammox process contributed to approximately 98.1 % of the nitrogen removal. Candidatus Kuenenia achieved a relative abundance of 1.49 % in the inner layer of the carrier. In the SNAD-SBBR system, the extremely low DO environment created by the highly efficient partial nitrification stage enabled the coexistence of AnAOB, denitrifying bacteria, and Nitrosomonas, synergistically achieving ammonia removal and carbon reduction. Overall, the SNAD-SBBR process exhibits low-cost and high-efficiency characteristics, holding tremendous potential for landfill leachate treatment.
Keyword ：
Mainstream Anammox Mainstream Anammox Landfill leachate Landfill leachate Microbial community Microbial community SNAD SNAD Extremely low DO Extremely low DO
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| GB/T 7714 | Wu, Lina , Yin, Jian , Zhang, Yulin et al. Nitrogen removal and carbon reduction of mature landfill leachate under extremely low dissolved oxygen conditions by simultaneous partial nitrification anammox and denitrification [J]. | BIORESOURCE TECHNOLOGY , 2024 , 401 . |
| MLA | Wu, Lina et al. "Nitrogen removal and carbon reduction of mature landfill leachate under extremely low dissolved oxygen conditions by simultaneous partial nitrification anammox and denitrification" . | BIORESOURCE TECHNOLOGY 401 (2024) . |
| APA | Wu, Lina , Yin, Jian , Zhang, Yulin , Luo, Anteng , Tian, Yinghao , Liu, Yufan et al. Nitrogen removal and carbon reduction of mature landfill leachate under extremely low dissolved oxygen conditions by simultaneous partial nitrification anammox and denitrification . | BIORESOURCE TECHNOLOGY , 2024 , 401 . |
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Abstract ：
Realizing the quick enrichment and development of denitrifying phosphorus accumulating organisms (DPAOs) in actual household wastewater and industrial nitrate wastewater has significant research significance. In this study, a novel operation mode of anaerobic-oxic-anoxic (AOA) was adopted to successfully realize the enrichment and cultivation of DPAOs in urban domestic wastewater. Adjusting influent COD to PO43--P ratio, shortening the aerobic time and decreasing the aeration volume were conducive to select DPAOs in microbial populations. The system was operated for 180 days and the DPAOs were well enriched during the stable operation with the percentage of Dechloromonas increased to 5.1 %. Accordingly, the effluent PO43--P was < 0.3 mg P/L, the removal efficiency of phosphorus was 96.9 % and the removal efficiency of nitrate was 92.5 %. Above all, DPR can be successfully applied to AOA systems with good phosphorus removal performance.
Keyword ：
microorganisms microorganisms Denitrifying phosphorus accumulating Denitrifying phosphorus accumulating AOA operation AOA operation Endogenous denitrification Endogenous denitrification Municipal wastewater Municipal wastewater Denitrifying phosphorus removal Denitrifying phosphorus removal
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| GB/T 7714 | Li, Zixin , Li, Xiyao , Wang, Hanbin et al. Achieving synchronous and highly efficient removal of nitrogen and phosphorus by rapid enrichment and cultivation denitrifying phosphorus accumulating organisms in anaerobic-oxic-anoxic operation mode [J]. | BIORESOURCE TECHNOLOGY , 2024 , 396 . |
| MLA | Li, Zixin et al. "Achieving synchronous and highly efficient removal of nitrogen and phosphorus by rapid enrichment and cultivation denitrifying phosphorus accumulating organisms in anaerobic-oxic-anoxic operation mode" . | BIORESOURCE TECHNOLOGY 396 (2024) . |
| APA | Li, Zixin , Li, Xiyao , Wang, Hanbin , Peng, Yongzhen . Achieving synchronous and highly efficient removal of nitrogen and phosphorus by rapid enrichment and cultivation denitrifying phosphorus accumulating organisms in anaerobic-oxic-anoxic operation mode . | BIORESOURCE TECHNOLOGY , 2024 , 396 . |
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Abstract ：
A promising technology for partial nitritation/anammox (PN/A) processes to treat ammonium wastewater is integrated fixed-film activated sludge (IFAS). For practical applications, achieving efficient enrichment of anammox bacteria (AnAOB) remains a challenge. In this study, membranes were temporarily used to separate solid and liquid components to induce changes in the mixed liquor suspended solids of the flocs. With membrane separation, AnAOB proliferated rapidly with a seven-fold increase in the maximum specific growth rate (mu) (from 0.009 to 0.072 d-1) and a three-fold increase in the nitrogen removal rate (from 0.91 to 3.20 kg N/(m3 & sdot;d)). Moreover, microbial community analysis showed significant changes in bacterial species richness and diversity with and without membrane separation. Overall, the regulation of flocs significantly influenced the microbial community structure of both flocs and biofilms leading to improved nitrogen removal efficiency in the IFAS-PN/ A system.
Keyword ：
IFAS IFAS Biofilm Biofilm Autotrophic nitrogen removal Autotrophic nitrogen removal Membrane separation Membrane separation Microbial community Microbial community
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| GB/T 7714 | Yang, Mengqi , Li, Jialin , Li, Zhaoyang et al. Enhancing anammox bacteria enrichment in integrated fixed-film activated sludge partial nitritation/anammox process via floc retention control [J]. | BIORESOURCE TECHNOLOGY , 2024 , 391 . |
| MLA | Yang, Mengqi et al. "Enhancing anammox bacteria enrichment in integrated fixed-film activated sludge partial nitritation/anammox process via floc retention control" . | BIORESOURCE TECHNOLOGY 391 (2024) . |
| APA | Yang, Mengqi , Li, Jialin , Li, Zhaoyang , Peng, Yongzhen , Zhang, Liang . Enhancing anammox bacteria enrichment in integrated fixed-film activated sludge partial nitritation/anammox process via floc retention control . | BIORESOURCE TECHNOLOGY , 2024 , 391 . |
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Abstract ：
Introducing carbon sources to achieve nitrogen removal from mature landfill leachate not only increases the costs and carbon emissions but also inhibits the activity of autotrophic bacteria. Thus, this study constructed a double anammox system that combines partial nitrification-anammox (PNA) and endogenous partial denitrificationanammox (EPDA) within an integrated fixed-film activated sludge (IFAS) reactor. In this system, PNA primarily contributes to nitrogen removal pathways, achieving a nitrite accumulation rate of 98.23%. The production of extracellular polymer substances (EPS) in the IFAS reactor is stimulated by introducing co-fermentation liquid. Through the utilization of EPS, the system effectively achieves EPDA with the nitrite transformation rate of 97.20%. Under the intermittent aeration operation strategy, EPDA combined with PNA and anammox in the oxic and anoxic stages enhanced the nitrogen removal efficiency of the system to 99.70 +/- 0.12%. The functional genus Candidatus kuenenia became enriched in biofilm sludge, while Thauera and Nitrosomonas predominated in floc sludge.
Keyword ：
Intermittent aeration Intermittent aeration Extracellular polymeric substances Extracellular polymeric substances Partial nitrification-anammox Partial nitrification-anammox Endogenous partial denitrification-anammox Endogenous partial denitrification-anammox Mature landfill leachate Mature landfill leachate
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| GB/T 7714 | Wang, Zhaozhi , Liang, Haoran , Yan, Ying et al. Stimulating extracellular polymeric substances production in integrated fixed-film activated sludge reactor for advanced nitrogen removal from mature landfill leachate via one-stage double anammox [J]. | BIORESOURCE TECHNOLOGY , 2024 , 391 . |
| MLA | Wang, Zhaozhi et al. "Stimulating extracellular polymeric substances production in integrated fixed-film activated sludge reactor for advanced nitrogen removal from mature landfill leachate via one-stage double anammox" . | BIORESOURCE TECHNOLOGY 391 (2024) . |
| APA | Wang, Zhaozhi , Liang, Haoran , Yan, Ying , Li, Xiyao , Zhang, Qiong , Peng, Yongzhen . Stimulating extracellular polymeric substances production in integrated fixed-film activated sludge reactor for advanced nitrogen removal from mature landfill leachate via one-stage double anammox . | BIORESOURCE TECHNOLOGY , 2024 , 391 . |
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Abstract ：
The stringent effluent quality standards in wastewater treatment plants (WWTPs) can effectively mitigate environmental issues such as eutrophication by reducing the discharge of nutrients into water environments. However, the current wastewater treatment process often struggles to achieve advanced nutrient removal while also saving energy and reducing carbon consumption. The first full-scale anaerobic/aerobic/anoxic (AOA) system was established with a wastewater treatment scale of 40,000 m3/d. Over one year of operation, the average TN and TP concentration in the effluent of 7.53 +/- 0.81 and 0.37 +/- 0.05 mg/L was achieved in low TN/COD (C/ N) ratio (average 5) wastewater treatment. The post-anoxic zones fully utilized the internal carbon source stored in pre-anaerobic zones, removing 41.29 % of TN and 36.25 % of TP. Intracellular glycogen (Gly) and proteins in extracellular polymeric substances (EPS) served as potential drivers for post-anoxic denitrification and phosphorus uptake. The sludge fermentation process was enhanced by the long anoxic hydraulic retention time (HRT) of the AOA system. The relative abundance of fermentative bacteria was 31.66 - 55.83 %, and their fermentation metabolites can provide additional substrates and energy for nutrient removal. The development and utilization of internal carbon sources in the AOA system benefited from reducing excess sludge production, energy conservation, and advanced nutrient removal under carbon-limited. The successful full-scale validation of the AOA process provided a potentially transformative technology with wide applicability to WWTPs.
Keyword ：
Advanced nitrogen removal Advanced nitrogen removal Anaerobic/aerobic/anoxic Anaerobic/aerobic/anoxic Internal carbon sources Internal carbon sources Wastewater treatment Wastewater treatment Energy saving Energy saving Full-scale Full-scale
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| GB/T 7714 | Gao, Xinjie , Zhang, Liang , Liu, Jinjin et al. First application of the novel anaerobic/aerobic/anoxic (AOA) process for advanced nutrient removal in a wastewater treatment plant [J]. | WATER RESEARCH , 2024 , 252 . |
| MLA | Gao, Xinjie et al. "First application of the novel anaerobic/aerobic/anoxic (AOA) process for advanced nutrient removal in a wastewater treatment plant" . | WATER RESEARCH 252 (2024) . |
| APA | Gao, Xinjie , Zhang, Liang , Liu, Jinjin , Zhang, Yong , Peng, Yongzhen . First application of the novel anaerobic/aerobic/anoxic (AOA) process for advanced nutrient removal in a wastewater treatment plant . | WATER RESEARCH , 2024 , 252 . |
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Abstract ：
Removing nitrogen and phosphorus from low ratio of chemical oxygen demand to total nitrogen and temperature municipal wastewater stays a challenge. In this study, a pilot-scale anaerobic/aerobic/anoxic sequencing batch reactor (A/O/A-SBR) system first treated 15 m 3 /d actual municipal wastewater at 8.1 - 26.4 degrees C for 224 days. At the temperature of 15.7 degrees C, total nitrogen in influent and effluent were 45.5 and 10.9 mg/L, and phosphorus in influent and effluent were 3.9 and 0.1 mg/L. 16 s RNA sequencing results showed the relative abundance of Competibacter and Tetrasphaera raised to 1.25 % and 1.52 %. The strategy of excessive, no and normal sludge discharge enriched and balanced the functional bacteria, achieving an endogenous denitrification ratio more than 43.3 %. Sludge reduction and short aerobic time were beneficial to energy saving contrast with a Beijing municipal wastewater treatment. This study has significant implications for the practical application of the AOASBR process.
Keyword ：
Low temperature Low temperature Biological nitrogen and phosphorus removal Biological nitrogen and phosphorus removal Efficient wastewater treatment Efficient wastewater treatment Endogenous denitrification Endogenous denitrification Save energy Save energy
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| GB/T 7714 | Gu, Changkun , Li, Xiyao , Zhang, Shujun et al. Advanced nitrogen and phosphorus removal in pilot-scale anaerobic/ aerobic/anoxic system for municipal wastewater in Northern China [J]. | BIORESOURCE TECHNOLOGY , 2024 , 399 . |
| MLA | Gu, Changkun et al. "Advanced nitrogen and phosphorus removal in pilot-scale anaerobic/ aerobic/anoxic system for municipal wastewater in Northern China" . | BIORESOURCE TECHNOLOGY 399 (2024) . |
| APA | Gu, Changkun , Li, Xiyao , Zhang, Shujun , Li, Jianwei , Gao, Xiaoyu , Chen, Guo et al. Advanced nitrogen and phosphorus removal in pilot-scale anaerobic/ aerobic/anoxic system for municipal wastewater in Northern China . | BIORESOURCE TECHNOLOGY , 2024 , 399 . |
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Abstract ：
The two -sludge anoxic dephosphation (DEPHANOX) process frequently encounters the challenge of elevated effluent ammonia levels in practical applications. In this study, the anaerobic ammonium oxidation (anammox) biofilm was introduced into the DEPHANOX system, transforming it into a three -sludge system, enabling synchronous nitrogen and phosphorus elimination, particularly targeting ammonia. Despite a chemical oxygen demand/total nitrogen ratio of 4.3 +/- 0.8 in the actual municipal wastewater and 4.5 h of aeration, the effluent total nitrogen was 13.7 mg/L, lower than the parallel wastewater treatment plant. Additionally, the effluent ammonia reduced to 5.1 +/- 2.5 mg/L. Notably, denitrifying phosphorus removal and anammox were coupled in the anoxic zone, yielding 74.5 % nitrogen and 87.8 % phosphorus removal. 16S rRNA gene sequencing identified denitrifying phosphorus -accumulating organisms primarily in floc sludge (Saprospiraceae 7.07 %, Anaerolineaceae 1.95 %, Tetrasphaera 1.57 %), while anammox bacteria inhabited the biofilm (Candidatus Brocadia 4.00 %). This study presents a novel process for efficiently treating municipal wastewater.
Keyword ：
Partial denitrification Partial denitrification Anammox Anammox Biological nutrient removal Biological nutrient removal Biofilm Biofilm
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| GB/T 7714 | Gao, Xiaoyu , Zhang, Qiong , Zhang, Shujun et al. Novel three-sludge municipal wastewater treatment process coupling denitrifying phosphorus removal with anaerobic ammonium oxidation [J]. | BIORESOURCE TECHNOLOGY , 2024 , 399 . |
| MLA | Gao, Xiaoyu et al. "Novel three-sludge municipal wastewater treatment process coupling denitrifying phosphorus removal with anaerobic ammonium oxidation" . | BIORESOURCE TECHNOLOGY 399 (2024) . |
| APA | Gao, Xiaoyu , Zhang, Qiong , Zhang, Shujun , Li, Jianwei , Gu, Changkun , Chen, Guo et al. Novel three-sludge municipal wastewater treatment process coupling denitrifying phosphorus removal with anaerobic ammonium oxidation . | BIORESOURCE TECHNOLOGY , 2024 , 399 . |
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Abstract ：
Higher nitrite accumulation, which is challenging to achieve reliably, is always sought to obtain better nitrogen removal performance in traditional partial nitritation-anammox (PN/A) process. This study developed a modified PN/A process by introducing nitrite-oxidizing bacteria and endogenous metabolism. Advanced nitrogen removal performance of 95.5 % was achieved at a low C/N ratio of 2.7 under nitrite accumulation ratio (NAR) fluctuations. Higher nitrate accumulation at lower NAR (70 - 40 %) resulted in superior anammox contribution (60 - 75 %) and nitrogen removal performance (93 - 98 %). This was attributed to the higher nitrogen removal efficiency of the post-anoxic endogenous partial denitrification coupling anammox process, although the PN/A process occurring first possessed a faster anammox rate of 2.0 mg NH 4 + -N /(g VSS & sdot; h). The introduction of nitrate allowed more nitrite flow to anammox, promoting a high enrichment of anammox bacteria ( Ca. Brocadia, 0.3 % to 2.8 %). This study provides new insights into the practical application of the PN/A process.
Keyword ：
Ammonium oxidation Ammonium oxidation Low-strength wastewater Low-strength wastewater Nitrite accumulation ratio Nitrite accumulation ratio Mainstream anammox Mainstream anammox Endogenous partial denitrification Endogenous partial denitrification
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| GB/T 7714 | Dan, Qiongpeng , Wang, Tong , Li, Jianwei et al. Enhanced anammox performance under lower nitrite accumulation in modified partial nitritation-anammox (PN/A) process [J]. | BIORESOURCE TECHNOLOGY , 2024 , 406 . |
| MLA | Dan, Qiongpeng et al. "Enhanced anammox performance under lower nitrite accumulation in modified partial nitritation-anammox (PN/A) process" . | BIORESOURCE TECHNOLOGY 406 (2024) . |
| APA | Dan, Qiongpeng , Wang, Tong , Li, Jianwei , Zhang, Qiong , Peng, Yongzhen . Enhanced anammox performance under lower nitrite accumulation in modified partial nitritation-anammox (PN/A) process . | BIORESOURCE TECHNOLOGY , 2024 , 406 . |
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Abstract ：
Anaerobic/Aerobic/Anoxic (AnOA) n OA) process utilizes endogenous denitrification to remove nitrogen. However, low endogenous denitrification activity critically restricts its application owing to insufficient carbon sources. In this study, a novel control strategy employing anaerobic/aerobic/anoxic/aerobic/anoxic (AOAOA) mode was introduced to treat low Carbon/Nitrogen (C/N) ratio municipal wastewater over 262 days. The concentration of total inorganic nitrogen (TIN) was only 3.9 +/- 2.0 mg/L in the effluent, with a high nitrogen removal efficiency (NRE) of 94.3 %. The relative abundance of Candidatus Competibacter increased from 1.2 % to 2.3 %, ensuring an efficient endogenous denitrification process. Additionally, Candidatus Brocadia enriched from 0.02 % to 0.6 %, contributing to 63.1 % nitrogen removal during the anoxic stage in Phase III. This study presents a promising approach for enhancing endogenous denitrification and anammox in the AnOA n OA process, contributing to sustainable wastewater treatment.
Keyword ：
Efficient wastewater treatment Efficient wastewater treatment Low C/N ratio Low C/N ratio AOAOA mode AOAOA mode Mainstream Mainstream EPDA system EPDA system
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| GB/T 7714 | Shi, Xialian , Liu, Jinjin , Wu, You et al. Novel control strategy employing anaerobic/aerobic/anoxic/aerobic/ anoxic mode to enhance endogenous denitrification and anammox for municipal wastewater treatment [J]. | BIORESOURCE TECHNOLOGY , 2024 , 414 . |
| MLA | Shi, Xialian et al. "Novel control strategy employing anaerobic/aerobic/anoxic/aerobic/ anoxic mode to enhance endogenous denitrification and anammox for municipal wastewater treatment" . | BIORESOURCE TECHNOLOGY 414 (2024) . |
| APA | Shi, Xialian , Liu, Jinjin , Wu, You , Wu, Ke , Peng, Yongzhen . Novel control strategy employing anaerobic/aerobic/anoxic/aerobic/ anoxic mode to enhance endogenous denitrification and anammox for municipal wastewater treatment . | BIORESOURCE TECHNOLOGY , 2024 , 414 . |
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