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学者姓名：樊晓燕
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摘要 ：
The construction of aerobic denitrification (AD) systems in an antibiotic-stressed environment is a serious challenge. This study investigated strategy of cyclic stress with concentration gradient (5-30 mg/L) of sulfamethoxazole (SMX) in a sequencing batch reactor (SBR), to achieve operation of AD. Total nitrogen removal efficiency of system increased from about 10 % to 95 %. Original response of abundant-rare genera to antibiotics was changed by SMX stress, particularly conditionally rare or abundant taxa (CRAT). AD process depends on synergistic effect of heterotrophic nitrifying aerobic denitrification bacteria (Paracoccus, Thauera, Hypomicrobium, etc). AmoABC, napA, and nirK were functionally co-expressed with multiple antibiotic resistance genes (ARGs) (acrR, ereAB, and mdtO), facilitating AD process. ARGs and TCA cycling synergistically enhance the antioxidant and electron transport capacities of AD process. Antibiotic efflux pump mechanism played an important role in operation of AD. The study provides strong support for regulating activated sludge to achieve in situ AD function.
关键词 ：
Cyclic stress Cyclic stress Sulfamethoxazole Sulfamethoxazole Aerobic denitrification Aerobic denitrification Microecology Microecology Antibiotic resistance genes Antibiotic resistance genes
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| GB/T 7714 | Fan, Xiao-Yan , Zhang, Zhong-Xing , Li, Xing et al. Microecology of aerobic denitrification system construction driven by cyclic stress of sulfamethoxazole [J]. | BIORESOURCE TECHNOLOGY , 2024 , 402 . |
| MLA | Fan, Xiao-Yan et al. "Microecology of aerobic denitrification system construction driven by cyclic stress of sulfamethoxazole" . | BIORESOURCE TECHNOLOGY 402 (2024) . |
| APA | Fan, Xiao-Yan , Zhang, Zhong-Xing , Li, Xing , Liu, Yuan-Kun , Cao, Shen-Bin , Geng, Wen-Nian et al. Microecology of aerobic denitrification system construction driven by cyclic stress of sulfamethoxazole . | BIORESOURCE TECHNOLOGY , 2024 , 402 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Low temperatures limit the denitrification wastewater in activated sludge systems, but this can be mitigated by addition of redox mediators (RMs). Here, the effects of chlorophyll (Chl), 1,2-naphthoquinone-4-sulfonic acid (NQS), humic acid (HA), and riboflavin (RF), each tested at three concentrations, were compared for denitrification performance at low temperature, by monitoring the produced extracellular polymeric substances (EPS), and characterizing microbial communities and their metabolic potential. Chl increased the denitrification rate most, namely 4.12 -fold compared to the control, followed by NQS (2.62 -fold increase) and HA (1.35 -fold increase), but RF had an inhibitory effect. Chl promoted the secretion of tryptophan-like and tyrosine -like proteins in the EPS and aided the conversion of protein from tightly bound EPS into loosely bound EPS, which improved the material transfer efficiency. NQS, HA, and RF also altered the EPS components. The four RMs affected the microbial community structure, whereby both conditionally abundant taxa (CAT) and conditionally rare or abundant taxa (CRAT) were key taxa. Among them, CRAT members interacted most with the other taxa. Chl promoted Flavobacterium enrichment in low -temperature activated sludge systems . In addition, Chl promoted the abundance of nitrate reduction genes narGHI and napAB and of nitrite reduction genes nirKS , norBC , and nosZ . Moreover, Chl increased abundance of genes involved in acetate metabolism and in the TCA cycle, thereby improving carbon source utilization. This study increases our understanding of the enhancement of lowtemperature activated sludge by RMs, and demonstrates positive effects, in particular by Chl.
关键词 ：
Redox mediators Redox mediators Low temperature Low temperature Extracellular polymers Extracellular polymers Microbial community composition Microbial community composition Denitrification Denitrification
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| GB/T 7714 | Fan, Xiao-Yan , Wang, Ya-Bao , Cao, Shen -Bin et al. Redox mediator chlorophyll accelerates low-temperature biological denitrification with responses of extracellular polymers and changes in microbial community composition [J]. | SCIENCE OF THE TOTAL ENVIRONMENT , 2024 , 926 . |
| MLA | Fan, Xiao-Yan et al. "Redox mediator chlorophyll accelerates low-temperature biological denitrification with responses of extracellular polymers and changes in microbial community composition" . | SCIENCE OF THE TOTAL ENVIRONMENT 926 (2024) . |
| APA | Fan, Xiao-Yan , Wang, Ya-Bao , Cao, Shen -Bin , Zhang, Xiao-Han , Geng, Wen-Nian . Redox mediator chlorophyll accelerates low-temperature biological denitrification with responses of extracellular polymers and changes in microbial community composition . | SCIENCE OF THE TOTAL ENVIRONMENT , 2024 , 926 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Antibiotic resistance genes (ARGs) and mobile genetic elements (MGEs) in secondary effluent from wastewater treatment plants (WWTPs) have a size-fractionated character and conventional processes have difficulties in removing ARGs and MGEs. Therefore, this study aimed to explore the removal efficiency, removal mechanism and regeneration potential of size-fractionated ARGs and MGEs by vacuum ultraviolet (VUV)-activated peroxymonosulfate (PMS) and ascertain their potential hosts in secondary effluent. The proportion of particle-associated (PA)-ARGs and PA-MGEs was 85.07 %, followed by free-living (FL) fraction (14.91 %) and cell-free (CF) fraction (0.02 %). More than 95.00 %similar to 99.99 % of ARGs and MGEs in PA- and CF- fractions were removed by VUV/PMS, but the average removal efficiency of FL-ARGs and FL-MGEs was 66.15 %. Compared to the regeneration potential of PA- and CF-ARGs and MGEs (0.02 < C/C-0 < 5.27), the regeneration occurred mainly in FL-ARGs and FL-MGEs (0.08 < C/C-0 < 24.06). OH was the dominant radical (16.810 x 10(-6) mol/L) in VUV/PMS for the removal of size-fractionated ARGs and MGEs from the secondary effluent, while SO4- (4.478 x 10(-6) mol/L) played a supporting role in the system based on the quenching experiment, electron paramagnetic resonance spectrometer and probe experiments. Based on full-scale classification, conditionally rare or abundant taxa (CRAT) were the core potential hosts in PA-, FL- and CF- fractions, while rare taxa (RT) and conditionally rare taxa (CRT) potential hosts were more diverse in the three fractions. This study suggests that VUV/PMS can effectively remove size-fractionated ARGs and MGEs from secondary effluent and thereby obviously reduce their dissemination risk to receiving water bodies, providing technical support for the engineering application of VUV/PMS in full-scale WWTPs.
关键词 ：
Size-fractionated antibiotic resistance genes Size-fractionated antibiotic resistance genes Vacuum ultraviolet-activated perox-ymonosulfate Vacuum ultraviolet-activated perox-ymonosulfate Full-scale classification Full-scale classification Potential hosts Potential hosts Secondary effluent Secondary effluent
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| GB/T 7714 | Fan, Xiao-Yan , Xu, Shi-Long , Li, Xing et al. Efficient removal of size-fractionated antibiotic resistance genes (ARGs) in WWTPs secondary effluent by vacuum ultraviolet (VUV) activated potassium peroxymonosulfate (PMS) [J]. | CHEMICAL ENGINEERING JOURNAL , 2024 , 487 . |
| MLA | Fan, Xiao-Yan et al. "Efficient removal of size-fractionated antibiotic resistance genes (ARGs) in WWTPs secondary effluent by vacuum ultraviolet (VUV) activated potassium peroxymonosulfate (PMS)" . | CHEMICAL ENGINEERING JOURNAL 487 (2024) . |
| APA | Fan, Xiao-Yan , Xu, Shi-Long , Li, Xing , Zhou, Zhi-Wei , Gao, Yu-Xi , Zhao, Jun-Ru et al. Efficient removal of size-fractionated antibiotic resistance genes (ARGs) in WWTPs secondary effluent by vacuum ultraviolet (VUV) activated potassium peroxymonosulfate (PMS) . | CHEMICAL ENGINEERING JOURNAL , 2024 , 487 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Quorum sensing inhibitors (QSIs) are considered as potentially promising alternatives to antibiotics, while their compound effects on activated sludge nitrification system are not known. This study aimed to investigate interactions among abundant-rare genera, functional genes, and antibiotic resistance genes (ARGs) under QSI (2(5 H)-furanone) and antibiotic (ofloxacin) compound stress, their post-effect, and signaling molecule effect in activated sludge nitrification system. High concentrations compound stress inhibited nitrification and increased total nitrogen removal to 76.84%. Extracellular polymeric substances (EPS) content tended to decrease with increasing compound stress concentrations, and post-effect promoted EPS secretion, while signaling molecule effect promoted protein content more significantly. Microbial community structure of conditionally abundant taxa was significantly altered under compound stress. Conditionally rare or abundant taxa was the core taxa and showed abundant positive correlations with rare taxa. High concentrations compound stress promoted the proliferation of specific nitrogen removal functional genera such as Mesorhizobium, Hydrogenophaga and Rhodococcus, the expression of denitrification functional genes such as nosZ and napAB and occurrences of ARGs. Strong co-expressions were observed among specific ARGs subtypes and functional genes, especially with denitrification functional genes, and further promoted by post-effect and signaling molecule effect, which could enhance microbial resistance to stress. Microbial communities and ARGs had significant effects on nitrogen removal performance, and together explained 21.80% of change. This study emphasized contributions of component interactions in maintaining performance.
关键词 ：
Antibiotic resistance genes Antibiotic resistance genes Quorum sensing inhibitors Quorum sensing inhibitors Microbial community Microbial community Co-expression Co-expression Compound stress Compound stress
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| GB/T 7714 | Fan, Xiao-Yan , Geng, Wen-Nian , Li, Xing et al. Responses of activated sludge to quorum sensing inhibitor and antibiotic compound stress: Interactions among abundant-rare genera, functional genes, and antibiotic resistance genes [J]. | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2024 , 12 (2) . |
| MLA | Fan, Xiao-Yan et al. "Responses of activated sludge to quorum sensing inhibitor and antibiotic compound stress: Interactions among abundant-rare genera, functional genes, and antibiotic resistance genes" . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 12 . 2 (2024) . |
| APA | Fan, Xiao-Yan , Geng, Wen-Nian , Li, Xing , Liu, Yuan-Kun , Cao, Shen-Bin , Zhang, Xiao-Han et al. Responses of activated sludge to quorum sensing inhibitor and antibiotic compound stress: Interactions among abundant-rare genera, functional genes, and antibiotic resistance genes . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2024 , 12 (2) . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
In marine recirculating aquaculture systems (RAS), the prolonged initiation of biological nitrification and the proliferation of potential pathogens due to high salinity pose challenges. A combined biofiltration system (ceramic rings (CR) - granular activated carbon (GAC) - ultrafiltration (UF) process) was implemented in an actual marine RAS for selenotoca multifasciata. The research spans 200 days, focusing on ammonia nitrogen and dissolved organic matter (DOM) removal, membrane fouling, and microbial communities. Results showed that fast nitrification start-up achieved by the CR-GAC-UF process within 21 days under low ammonia concentrations with a daily ammonia removal efficiency of 91.7 %. UV254 and CODMn maintained at 0.05 +/- 0.01 cm( -1) and 1.34 +/- 0.03 mg/L, in line with the stable removal of humic-like substances and soluble microbial products. UF membranes maintained low fouling with fluxes at 15 LHM and the protein/polysaccharide ratios in extracellular polymeric substances (EPS) were stable below 0.5. Specific dominant bacterial genera facilitate DOM removal such as Xanthomarina, Idiomarina and Hyphomicrobium were recognized. Candidatus_Nitrosopumilus, Nitrosomonas_sp. and Nitrospira sp. ENR4 were detected as the core nitrifiers in CR-GAC-UF process, which were closely related to the amoABC, hao and nxrA genes (p < 0.05). The multi -stage barrier of CR-GAC-UF process maintains low heterotrophic plate counts (3 +/- 1 CFU/mL) and reduces potential pathogens in steps. Taken together, this study provides a theoretical basis for the wider application of marine RAS.
关键词 ：
Marine recirculating aquaculture systems Marine recirculating aquaculture systems Extracellular polymeric substances Extracellular polymeric substances Microbial community Microbial community Biosecurity Biosecurity Ultrafiltration Ultrafiltration
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| GB/T 7714 | Liu, Wenlu , Yang, Yanling , Li, Xing et al. Enhanced biofiltration coupled with ultrafiltration process in marine recirculating aquaculture system: Fast start-up of nitrification and long-term performance [J]. | JOURNAL OF WATER PROCESS ENGINEERING , 2024 , 58 . |
| MLA | Liu, Wenlu et al. "Enhanced biofiltration coupled with ultrafiltration process in marine recirculating aquaculture system: Fast start-up of nitrification and long-term performance" . | JOURNAL OF WATER PROCESS ENGINEERING 58 (2024) . |
| APA | Liu, Wenlu , Yang, Yanling , Li, Xing , Fan, Xiaoyan . Enhanced biofiltration coupled with ultrafiltration process in marine recirculating aquaculture system: Fast start-up of nitrification and long-term performance . | JOURNAL OF WATER PROCESS ENGINEERING , 2024 , 58 . |
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摘要 ：
一种通过高浓度群体感应抑制剂胁迫实现异养硝化‑好氧反硝化高效脱氮的方法，属于污水生物处理领域。该方法包括4个阶段：第1阶段为活性污泥的培养；第2阶段为高浓度群体感应抑制剂胁迫阶段，选用2(5H)‑呋喃酮，将30mg/L‑80mg/L的2(5H)‑呋喃酮作用于活性污泥系统实现异养硝化‑好氧反硝化高效脱氮；第3阶段为群体感应抑制剂胁迫的后效应阶段；第4阶段利用异养硝化‑好氧反硝化高效脱氮的活性污泥在低温条件下强化普通活性污泥的脱氮作用。本发明能够在胁迫阶段达到85％以上的总氮去除率，后效应阶段仍能维持70％以上的总氮去除，降低了细菌耐药性的产生，对低温等恶劣环境具备一定抗冲击能力。
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| GB/T 7714 | 樊晓燕 , 耿文念 , 张晓晗 et al. 一种通过高浓度群体感应抑制剂胁迫实现异养硝化-好氧反硝化高效脱氮的方法 : CN202310283569.2[P]. | 2023-03-21 . |
| MLA | 樊晓燕 et al. "一种通过高浓度群体感应抑制剂胁迫实现异养硝化-好氧反硝化高效脱氮的方法" : CN202310283569.2. | 2023-03-21 . |
| APA | 樊晓燕 , 耿文念 , 张晓晗 , 王亚宝 . 一种通过高浓度群体感应抑制剂胁迫实现异养硝化-好氧反硝化高效脱氮的方法 : CN202310283569.2. | 2023-03-21 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
一种叶绿素强化低温活性污泥生物反硝化效能的方法，属于污水生物处理技术领域，该方法利用天然氧化还原介体叶绿素电子传递的作用，加速了电子供体(乙酸钠)的电子向电子受体(硝态氮)的转移，有效地提高了低温活性污泥系统的反硝化速率和总氮去除率。该方法包括三个步骤：1)氧化还原介体投加剂量的确定；2)低温活性污泥的基础驯化；3)低温氧化还原介体的强化驯化。通过叶绿素的电子传递作用，低温下活性污泥系统的反硝化速率提高1.37～3.94倍，总氮去除率提高4.47％～60.71％。本发明所采用的氧化还原介体叶绿素为天然存在，可为解决现有活性污泥系统冬季反硝化效率低、运行成本高的问题提供一定的技术指导。
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| GB/T 7714 | 樊晓燕 , 王亚宝 , 张晓晗 et al. 一种叶绿素强化低温活性污泥生物反硝化效能的方法 : CN202310325514.3[P]. | 2023-03-29 . |
| MLA | 樊晓燕 et al. "一种叶绿素强化低温活性污泥生物反硝化效能的方法" : CN202310325514.3. | 2023-03-29 . |
| APA | 樊晓燕 , 王亚宝 , 张晓晗 , 耿文念 . 一种叶绿素强化低温活性污泥生物反硝化效能的方法 : CN202310325514.3. | 2023-03-29 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
一种抗生素胁迫记忆驱动好氧颗粒污泥适于医药废水脱氮的方法，属于污水生物脱氮领域。具体为：首先在一体序批式反应器中接种活性污泥，然后通过抗生素浓度梯度循环胁迫策略驱动活性污泥产生胁迫记忆，富集活性污泥中脱氮功能细菌并提升其对抗生素的耐受能力，随后进一步增加抗生素浓度梯度循环胁迫次数，将反应器中絮状活性污泥转化为好氧颗粒污泥脱氮系统，最终当反应器总氮去除率维持在95％以上时，成功实现适于医药废水处理的好氧颗粒污泥高效脱氮系统的建立。本发明突破了现有的医药废水处理过度依赖于废水处理工艺耦合叠加的现状，降低了医药废水高效稳定脱氮工艺开发和维护的难度，提高了工程应用的可行性。
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| GB/T 7714 | 樊晓燕 , 张忠兴 , 王亚宝 et al. 一种抗生素胁迫记忆驱动好氧颗粒污泥适于医药废水脱氮的方法 : CN202310084829.3[P]. | 2023-01-28 . |
| MLA | 樊晓燕 et al. "一种抗生素胁迫记忆驱动好氧颗粒污泥适于医药废水脱氮的方法" : CN202310084829.3. | 2023-01-28 . |
| APA | 樊晓燕 , 张忠兴 , 王亚宝 , 耿文念 , 张晓晗 . 一种抗生素胁迫记忆驱动好氧颗粒污泥适于医药废水脱氮的方法 : CN202310084829.3. | 2023-01-28 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
一种基于复合污染预胁迫提高低温下活性污泥体系硝化速率的方法，属于污水生物处理领域。该方法分为四个阶段：一，活性污泥的培养；二，中温条件下10mg/L三氯咔唑和1mg/L纳米四氧化三铁对活性污泥体系的预胁迫基础驯化；三，中低温条件下5mg/L三氯咔唑和1mg/L纳米四氧化三铁对活性污泥体系的预胁迫强化驯化；四，预胁迫活性污泥体系在低温条件下的运行。经过两个阶段驯化的活性污泥体系在低温条件下的运行阶段中硝化速率提高。提高了活性污泥体系在低温环境下运行时的硝化速率，并且使活性污泥系统对复合污染有一定的抗冲击性，为污水处理厂在冬季低温环境下高效脱氮提供技术支持。
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| GB/T 7714 | 樊晓燕 , 张晓晗 , 耿文念 et al. 一种基于复合污染预胁迫提高低温下活性污泥体系硝化速率的方法 : CN202310477667.X[P]. | 2023-04-27 . |
| MLA | 樊晓燕 et al. "一种基于复合污染预胁迫提高低温下活性污泥体系硝化速率的方法" : CN202310477667.X. | 2023-04-27 . |
| APA | 樊晓燕 , 张晓晗 , 耿文念 , 王亚宝 . 一种基于复合污染预胁迫提高低温下活性污泥体系硝化速率的方法 : CN202310477667.X. | 2023-04-27 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
一种真空紫外/过硫酸氢钾耦合高级氧化去除抗生素抗性基因的方法与调控系统，属于污水处理技术领域。调控系统包括提升泵、投药泵、混合装置、进水阀、进水泵、耦合反应器、硫酸根检测仪、出水阀、回流管、回流阀、PLC调控装置、以及连接上述装置的管道，根据耦合反应器出水硫酸根(SO42‑)浓度的变化，采用循序处理阶段、循环处理阶段和强化处理阶段的精细化调控，实现了不同类型抗生素抗性基因的高效去除，同时真空紫外/过硫酸氢钾耦合高级氧化法反应条件温和，反应时间短，相关工艺可作为新型绿色高效污水处理技术应用于城市污水处理厂二级出水，为控制二级出水抗生素抗性基因污染提供技术支持。
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| GB/T 7714 | 李星 , 徐是龙 , 樊晓燕 et al. 一种真空紫外/过硫酸氢钾耦合高级氧化去除抗生素抗性基因的方法与调控系统 : CN202211022045.X[P]. | 2022-08-24 . |
| MLA | 李星 et al. "一种真空紫外/过硫酸氢钾耦合高级氧化去除抗生素抗性基因的方法与调控系统" : CN202211022045.X. | 2022-08-24 . |
| APA | 李星 , 徐是龙 , 樊晓燕 , 高玉玺 , 赵君如 , 张忠兴 . 一种真空紫外/过硫酸氢钾耦合高级氧化去除抗生素抗性基因的方法与调控系统 : CN202211022045.X. | 2022-08-24 . |
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