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学者姓名：樊晓燕
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Abstract ：
To enhance efficiency and reduce energy consumption, novel nitrogen processes based on partial nitrification (PN) have been developed, and the stable operation of PN is the core. Although some previous studies have achieved PN under specific operational conditions, the natural formation of stable PN in sequencing batch biofilm reactors (SBBRs) and the microbial mechanism are still unclear. In this study, interestingly, stable PN was naturally achieved with nitrite accumulation rate (NAR) of 89 +/- 5 % and 81 +/- 7 % and maintained for almost 60 days and 40 days in the two SBBRs. Biofilm morphology and microbial composition differed from the suspended sludge. The tightly bound extracellular polymeric substances (TB-EPS) showed the most significant changes, as both systems contained aromatic proteins and soluble by-products. Biofilm had higher microbial diversity, and rare taxa (RT) were crucial for community stability based on full-scale classification. The shared genera of biofilm and suspended sludge in both SBBRs included Micropruina, Paracoccus, and Amaricoccus, with Lacunisphaera as key genera in biofilm. Topological analysis highlighted the role of conditional rare taxa (CRT) and RT connectors in network connectivity. The relative abundance of ammonia-oxidizing bacteria (AOB) and denitrification bacteria (DNB) gradually increased as the system operated, while nitrite-oxidizing bacteria (NOB) decreased. Paracoccus (DNB) had a significant proportion and notable changes. The primary functional genes were denitrification-related (nosZ, norC, nasAB). These results provide comprehensive insights into the mechanism of PN in SBBR systems.
Keyword ：
Abundant-rare and shared genera Abundant-rare and shared genera Microbial community Microbial community Interactions of functional genera and genes Interactions of functional genera and genes Partial nitrification Partial nitrification Sequencing batch biofilm reactor (SBBR) Sequencing batch biofilm reactor (SBBR)
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| GB/T 7714 | Fan, Xiao-Yan , Niu, Yue , Li, Xing et al. Microbial mechanism of naturally formed stable partial nitrification in sequencing batch biofilm reactors [J]. | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2025 , 13 (3) . |
| MLA | Fan, Xiao-Yan et al. "Microbial mechanism of naturally formed stable partial nitrification in sequencing batch biofilm reactors" . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 13 . 3 (2025) . |
| APA | Fan, Xiao-Yan , Niu, Yue , Li, Xing , Cao, Shen-Bin , Zheng, Meng-Yuan , Zhou, Shi-Long . Microbial mechanism of naturally formed stable partial nitrification in sequencing batch biofilm reactors . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2025 , 13 (3) . |
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Abstract ：
Intensive marine aquaculture generates complex pollutants, including nutrients and, threatening marine ecosystems. Biological treatments are effective but vulnerable to disruptions, especially during typhoons, which alter water quality and microbial communities. This study examined a mariculture tailwater (MTW) treatment system in Hainan over a year, focusing on seasonal performance in nutrient and ARGs removal, microbial community dynamics, impacts of environmental changes on functional microorganisms, and interactions of hosts of antibiotic resistance genes. The system effectively removed NH4+-N (63.74-94.73%) during non-typhoon seasons, but typhoons disrupted its nutrient pollutant reduction performance. The proportion of microorganisms involved in nitrogen and phosphorus removal decreased by changes of salinity in typhoon events. Antibiotic resistance genes relative abundances were enriched due to typhoon disaster. The majority antibiotic resistance genes in the system were associated with beta-lactam resistance (4.37 x 104-8.73 x 104). Rare bacterial taxa showed the strongest tolerance in all taxa to typhoon conditions. Archaeal community compositions were sensitive to these disturbances. Disperal limitation and heterogeneous selection were key drivers in bacterial and archaeal community assemblies. Microorganisms and antibiotic resistance genes often co-occurred in non-typhoon seasons. Vibrio was identified as a key potential host of antibiotic resistance genes in both seasons. This study highlights the disruptive effect of typhoons on the stability of MTW treatment systems.
Keyword ：
Antibiotic resistance genes Antibiotic resistance genes Bacterial and archaeal response Bacterial and archaeal response Typhoon disaster Typhoon disaster Potential hosts Potential hosts Mariculture tailwater treatment Mariculture tailwater treatment
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| GB/T 7714 | Zhao, Jun-Ru , Li, Xing , Yang, Yan-Ling et al. Impact of typhoon on nutrient contaminants, antibiotic resistance genes and microbial communities in mariculture tailwater treatment system [J]. | ENVIRONMENTAL RESEARCH , 2025 , 273 . |
| MLA | Zhao, Jun-Ru et al. "Impact of typhoon on nutrient contaminants, antibiotic resistance genes and microbial communities in mariculture tailwater treatment system" . | ENVIRONMENTAL RESEARCH 273 (2025) . |
| APA | Zhao, Jun-Ru , Li, Xing , Yang, Yan-Ling , Fan, Xiao-Yan . Impact of typhoon on nutrient contaminants, antibiotic resistance genes and microbial communities in mariculture tailwater treatment system . | ENVIRONMENTAL RESEARCH , 2025 , 273 . |
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Abstract ：
Antibiotic resistance genes (ARGs) as emerging contaminants, often co-occur with mobile genetic elements (MGEs) and are prevalent in drinking water treatment plants (DWTPs). In this study, the characteristics of freeliving (FL) and particle-associated (PA) ARGs associated with bacterial communities were investigated along two processes within a full-scale DWTP. A total of 13 ARGs and two MGEs were detected. FL-ARGs with diverse subtypes and PA-ARGs with high abundances displayed significantly different structures. PA-MGEs showed a strong positive correlation with PA-ARGs. Chlorine dioxide disinfection achieved 1.47-log reduction of FL-MGEs in process A and 0.24-log reduction of PA-MGEs in process B. Notably, PA-fraction virtually disappeared after treatment, while blaTEM, sul2, mexE, mexF and IntI1 of FL-fraction remained in the finished water. Moreover, Acinetobacter lwoffii (0.04 % - 45.58 %) and Acinetobacter schindleri (0.00 % - 18.54 %) dominated the 16 pathogens, which were more abundant in FL than PA bacterial communities. PA bacteria exhibited a more complex structure with more keystone species than FL bacteria. MGEs contributed 20.23 % and 19.31 % to the changes of FL-ARGs and PA-ARGs respectively, and water quality was a key driver (21.73 %) for PA-ARGs variation. This study provides novel insights into microbial risk control associated with size-fractionated ARGs in drinking water.
Keyword ：
Size-fractionated antibiotic resistance genes Size-fractionated antibiotic resistance genes Mobile genetic elements Mobile genetic elements Environmental factors Environmental factors Pathogenic species Pathogenic species Treatment process Treatment process
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| GB/T 7714 | Li, Na , Fan, Xiao-Yan , Li, Xing . Unveiling the characteristics of free-living and particle-associated antibiotic resistance genes associated with bacterial communities along different processes in a full-scale drinking water treatment plant [J]. | JOURNAL OF HAZARDOUS MATERIALS , 2024 , 476 . |
| MLA | Li, Na et al. "Unveiling the characteristics of free-living and particle-associated antibiotic resistance genes associated with bacterial communities along different processes in a full-scale drinking water treatment plant" . | JOURNAL OF HAZARDOUS MATERIALS 476 (2024) . |
| APA | Li, Na , Fan, Xiao-Yan , Li, Xing . Unveiling the characteristics of free-living and particle-associated antibiotic resistance genes associated with bacterial communities along different processes in a full-scale drinking water treatment plant . | JOURNAL OF HAZARDOUS MATERIALS , 2024 , 476 . |
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Abstract ：
The effect of combined antibiotics exposure on nitrogen removal, microbial community as-sembly and proliferation of antibiotics resistance genes (ARGs) is a hotspot in activated sludge system. However, it is unclear that how the historical antibiotic stress affects the subsequent responses of microbes and ARGs to combined antibiotics. In this study, the ef-fects of combined sulfamethoxazole (SMX) and trimethoprim (TMP) pollution on activated sludge under legacy of SMX or TMP stress with different doses (0.005-30 mg/L) were inves-tigated to clarify antibiotic legacy effects. Nitrification activity was inhibited under higher level of combined exposure but a high total nitrogen removal (-70%) occurred. Based on the full-scale classification, the legacy effect of past antibiotic stress had a marked effect on community composition of conditionally abundant taxa (CAT) and conditionally rare or abundant taxa (CRAT). Rare taxa (RT) were the keystone taxa in the microbial network, and the responses of hub genera were also affected by the legacy of antibiotic stress. Nitrifying bacteria and genes were inhibited by the antibiotics and aerobic denitrifying bacteria (Pseu-domonas, Thaurea and Hydrogenophaga) were enriched under legacy of high dose, as were the key denitrifying genes (napA, nirK and norB). Furthermore, the occurrences and co-selection relationship of 94 ARGs were affected by legacy effect. While, some shared hosts (eg., Cit-robacter) and hub ARGs (eg., mdtD, mdtE and acrD) were identified. Overall, antibiotic legacy could affect responses of activated sludge to combined antibiotic and the legacy effect was stronger at higher exposure levels. (c) 2022 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
Keyword ：
Legacy effect Legacy effect Full-scale classification Full-scale classification Antibiotics Antibiotics Combined pollution Combined pollution Antibiotic resistance genes (ARGs) Antibiotic resistance genes (ARGs)
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| GB/T 7714 | Zhang, Zhong-Xing , Fan, Xiao-Yan , Li, Xing et al. Effects of combined antibiotics on nitrification, bacteria and antibiotic resistance genes in activated sludge: Insights from legacy effect of antibiotics [J]. | JOURNAL OF ENVIRONMENTAL SCIENCES , 2023 , 131 : 96-110 . |
| MLA | Zhang, Zhong-Xing et al. "Effects of combined antibiotics on nitrification, bacteria and antibiotic resistance genes in activated sludge: Insights from legacy effect of antibiotics" . | JOURNAL OF ENVIRONMENTAL SCIENCES 131 (2023) : 96-110 . |
| APA | Zhang, Zhong-Xing , Fan, Xiao-Yan , Li, Xing , Zhao, Jun-Ru . Effects of combined antibiotics on nitrification, bacteria and antibiotic resistance genes in activated sludge: Insights from legacy effect of antibiotics . | JOURNAL OF ENVIRONMENTAL SCIENCES , 2023 , 131 , 96-110 . |
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Abstract ：
Rainwater recycling is a hot issue in recent years, but polypropylene (PP) module as a new type of rainwater storage facility has not received extensive attention. This study investigated the impact of rainwater pollution level, storage time (ST) and operation mode (alternate replenishment of rainwater and reclaimed water) on the pollutants removal performance and bacterial community characteristics of PP module. Chemical oxygen de-mand (COD) removal efficiency increased from 24.58%-26.52% to 33.23%-42.23% with prolonged ST. Oper-ation mode changed the purification performance, but the COD removal efficiencies in rainwater and reclaimed water were always above 28% and 42%, respectively. Operation mode exhibited the greatest impact on bacterial community structure, followed by rainwater quality and ST. The bacterial community classification in biofilm was different from that in water, but Klebsiella was always the dominant genus. Conditionally rare and abundant taxa (CRAT) and conditionally rare taxa (CRT) were identified as the hub taxa of biofilm-network and water -network, respectively. The potential pathogens in biofilm exhibited more complex interactions with non-pathogenic taxa than those in water. Klebsiella pneumoniae was the most dominant species and identified as the hub potential pathogen together with Escherichia coli in both networks. Bacterial communities in biofilm and water were significantly correlated with COD removal efficiency. These results elucidate the biological function and risk of PP module, and provide a reference for the optimization and operation management of the rainwater reuse system.
Keyword ：
Storage time Storage time Operation mode Operation mode Water quality Water quality Full-scale classification Full-scale classification Polypropylene rainwater module Polypropylene rainwater module Molecular ecological network Molecular ecological network
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| GB/T 7714 | Li, Na , Li, Xing , Fan, Xiao-Yan . Polypropylene module as a new type of tank for rainwater storage and cleaner production: Purification efficacy, bacterial community microecology and potential pathogens characteristics [J]. | JOURNAL OF CLEANER PRODUCTION , 2023 , 384 . |
| MLA | Li, Na et al. "Polypropylene module as a new type of tank for rainwater storage and cleaner production: Purification efficacy, bacterial community microecology and potential pathogens characteristics" . | JOURNAL OF CLEANER PRODUCTION 384 (2023) . |
| APA | Li, Na , Li, Xing , Fan, Xiao-Yan . Polypropylene module as a new type of tank for rainwater storage and cleaner production: Purification efficacy, bacterial community microecology and potential pathogens characteristics . | JOURNAL OF CLEANER PRODUCTION , 2023 , 384 . |
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Abstract ：
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 . |
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Abstract ：
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 . |
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Abstract ：
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 . |
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Abstract ：
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 . |
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Abstract ：
This study aimed to explore the impacts of ciprofloxacin (CIP, 0.05-40 mg/L) and copper (3 mg/L) combined pollution on nitrification, microbial community and antibiotic resistance genes (ARGs) in activated sludge system during stress-and post-effect periods. Higher CIP concentration inhibited nitrification and an average of 50% total nitrogen removal occurred under 40 mg/L of CIP pressure. The stress-and post-effects on bacterial diversity and structure were obviously distinct. Abundant genera were more sensitive to combined pollution than rare genera based on full-scale classification and conditionally rare or abundant taxa were keystone taxa in their interactions. Ammonia oxidation genes were inhibited under high CIP level, but some aerobic denitrifying bacteria (Thauera, Comamonas and Azoarcus) and key genes increased. 96 ARG subtypes were detected with complex positive relationships and their potential hosts (abundant-rare-functional genera) changed in two periods. This study highlights the different stress-and post-effects of combined pollution on activated sludge.
Keyword ：
Stress Stress and post-effects and post-effects Potential hosts Potential hosts Ciprofloxacin Ciprofloxacin Full-scale classification Full-scale classification Antibiotic resistance genes Antibiotic resistance genes
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| GB/T 7714 | Zhao, Jun-Ru , Fan, Xiao-Yan , Li, Xing et al. Impact of ciprofloxacin and copper combined pollution on activated sludge: Abundant-rare taxa and antibiotic resistance genes [J]. | BIORESOURCE TECHNOLOGY , 2022 , 349 . |
| MLA | Zhao, Jun-Ru et al. "Impact of ciprofloxacin and copper combined pollution on activated sludge: Abundant-rare taxa and antibiotic resistance genes" . | BIORESOURCE TECHNOLOGY 349 (2022) . |
| APA | Zhao, Jun-Ru , Fan, Xiao-Yan , Li, Xing , Gao, Yu-Xi , Zhang, Zhong-Xing . Impact of ciprofloxacin and copper combined pollution on activated sludge: Abundant-rare taxa and antibiotic resistance genes . | BIORESOURCE TECHNOLOGY , 2022 , 349 . |
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