您的检索：
学者姓名：高景峰
精炼检索结果：
年份
成果类型
收录类型
来源
综合
合作者
语言
清除所有精炼条件
摘要 ：
The capacity and mechanism of heterotrophic nitrification-aerobic denitrification (HNAD) strain (H1) to remove carbon, nitrogen, disinfectants chloroxylenol (PCMX) and benzethonium chloride (BEC) were investigated in this study. PCMX was removed via metabolism and chemical oxygen demand co-metabolism process. BEC was eliminated through bacterial adsorption, which greatly inhibited the removal of other pollutants. Carbon source optimization tests revealed that glucose was the optimal carbon source for co-removal of pollutants under mixed disinfectants circumstances (PCMX + BEC). Comparing the groups without (G1) and with disinfectants (G2), the content of extracellular polymeric substances was higher, and hydrophobicity was enhanced under the hazardous conditions of G2. All the nitrogen metabolism functional genes in G2 were up-regulated, and the electron transport system activity was also improved. At the same time, G2 had lower reactive oxygen species content, which reduced the probability of resistance genes dissemination, but the abundance of most quantified resistance genes was elevated in G2. Toxicity assessment assays found a dramatic reduction in the virulence of G2's effluent compared with the mixed disinfectants. The results confirmed that H1 strain could be used to treat the disinfectant-containing wastewater, which may aid in the application of HNAD process.
关键词 ：
Extracellular polymeric substances Extracellular polymeric substances Heterotrophic nitrification-aerobic denitrifica- Heterotrophic nitrification-aerobic denitrifica- Resistance genes Resistance genes Co-metabolism Co-metabolism Mixed disinfectants Mixed disinfectants tion tion
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Guo, Yi , Gao, Jingfeng , Zhang, Yi et al. Will the removal of carbon, nitrogen and mixed disinfectants occur simultaneously: The key role of heterotrophic nitrification-aerobic denitrification strain [J]. | JOURNAL OF HAZARDOUS MATERIALS , 2024 , 480 . |
| MLA | Guo, Yi et al. "Will the removal of carbon, nitrogen and mixed disinfectants occur simultaneously: The key role of heterotrophic nitrification-aerobic denitrification strain" . | JOURNAL OF HAZARDOUS MATERIALS 480 (2024) . |
| APA | Guo, Yi , Gao, Jingfeng , Zhang, Yi , Xie, Tian , Wang, Qian , An, Jiawen . Will the removal of carbon, nitrogen and mixed disinfectants occur simultaneously: The key role of heterotrophic nitrification-aerobic denitrification strain . | JOURNAL OF HAZARDOUS MATERIALS , 2024 , 480 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Antibiotics and quaternary ammonium compounds (QACs) usually co-exist in wastewater treatment plants. Hence, three sequencing batch reactors were established and named as R1, R2 and R3, to investigate the effects of individual and combined exposure of different concentrations of ciprofloxacin (CIP) (0.2, 1.0 and 2.0 mg/L) and dialkyldimethyl ammonium compound (DADMAC) (0.4, 2.0 and 4.0 mg/L) on the performance, microbial community structures and resistance genes (RGs) in nitrifying system during 150 days. Results showed that CIP had a slight effect on ammonia oxidation activity, while 2.0 and 4.0 mg/L DADAMAC could obviously inhibit it, and the combination of CIP and DADMAC had a synergistic inhibitory effect. Besides, both CIP and DADMAC caused partial nitrification, and the order of nitrite accumulation rate was ranked as R3 > R2 > R1. The combination of CIP and DADMAC had an antagonistic effect on the increase of sludge particle size and alpha-Helix/ ( beta -Sheet + Random coil) was lowest in R3 (0.40). The combination of CIP and DADMAC synergistically stimulated most intracellular RGs in sludge, and the relative abundances of target RGs ( e.g. , qacEdelta1-01 , qacH-01 and qnrS ) at the end of operation in R3 were increased by 4.61 - 18.19 folds compared with those in CK, which were 1.34 - 5.57 folds higher than the R1 and R2. Moreover, the combination of CIP and DADMAC also promoted the transfer of RGs from sludge to water and enriched more potential hosts of RGs, further promoting the spread of RGs in nitrifying system. Thus, the combined pollution of CIP and DADMAC in wastewaters should attract more attentions.
关键词 ：
Nitrifying system Nitrifying system Intracellular and extracellular resistance genes Intracellular and extracellular resistance genes Dialkyldimethyl ammonium compound Dialkyldimethyl ammonium compound Combined pollution Combined pollution Ciprofloxacin Ciprofloxacin
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Xu, Hongxin , Gao, Jingfeng , Cui, Yingchao et al. The combination of ciprofloxacin and dialkyldimethyl ammonium compound synergistically proliferated intracellular resistance genes in nitrifying system [J]. | SCIENCE OF THE TOTAL ENVIRONMENT , 2024 , 930 . |
| MLA | Xu, Hongxin et al. "The combination of ciprofloxacin and dialkyldimethyl ammonium compound synergistically proliferated intracellular resistance genes in nitrifying system" . | SCIENCE OF THE TOTAL ENVIRONMENT 930 (2024) . |
| APA | Xu, Hongxin , Gao, Jingfeng , Cui, Yingchao , Wang, Zhiqi , Zhao, Yifan , Yuan, Yukun et al. The combination of ciprofloxacin and dialkyldimethyl ammonium compound synergistically proliferated intracellular resistance genes in nitrifying system . | SCIENCE OF THE TOTAL ENVIRONMENT , 2024 , 930 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Sucralose (SUC) is an artificial sweetener for everyday consumption and often co -exists with disinfectants such as triclosan (TCS) and dialkyldimethyl ammonium compound (DAC) in sewage. Considering their continuous accumulation in sewage, it is essential to understand the impacts of their single and combined stress on the evolution of resistance genes (RGs) and microorganisms. In this study, three sequencing batch reactors (SBRs) were established, which were added with SUC, disinfectant, SUC and disinfectant, respectively, and named SSBR, DSBR and SDSBR in turn. There were four stages in total, the first two stages and the latter two stages were set to explore the effects of co -exposure of SUC and single disinfectant (TCS), SUC and combined disinfectants (TCS and DAC) on nitrification system, respectively. SSBR showed excellent ammonia oxidation performance in the whole operation stages. Compared with DSBR, the microorganisms in SDSBR under the combined stress of SUC and TCS were less inhibited. TCS and DAC destroyed the ammonia oxidation performance of DSBR and SDSBR. Within 120 days, the removal efficiency of TCS reached 90 %. In SSBR, 1 mg/L SUC promoted the proliferation of RGs, especially induced free RGs in water (w-RGs) to maintain high abundance and persistence. Compared with single stress, the abundances of intracellular RGs in sludge were higher under the combined stress of SUC and TCS, and the risk of RGs transmission was greater. The combined stress of SUC and disinfectants (TCS and DAC) led to a higher enrichment of w-RGs, exacerbating the risk of w-RGs transmission.
关键词 ：
Triclosan Triclosan Single and combined stress Single and combined stress Sucralose Sucralose Quaternary ammonium compounds Quaternary ammonium compounds Extracellular and intracellular resistance genes Extracellular and intracellular resistance genes
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Zeng, Liqin , Gao, Jingfeng , Cui, Yingchao et al. Response of nitrification system to co-exposure of sucralose and single or combined disinfectants: Reducing damage to nitrification performance and aggravating the spread of intracellular resistance genes [J]. | CHEMICAL ENGINEERING JOURNAL , 2024 , 489 . |
| MLA | Zeng, Liqin et al. "Response of nitrification system to co-exposure of sucralose and single or combined disinfectants: Reducing damage to nitrification performance and aggravating the spread of intracellular resistance genes" . | CHEMICAL ENGINEERING JOURNAL 489 (2024) . |
| APA | Zeng, Liqin , Gao, Jingfeng , Cui, Yingchao , Zhao, Yifan , Guo, Yi , Yuan, Yukun et al. Response of nitrification system to co-exposure of sucralose and single or combined disinfectants: Reducing damage to nitrification performance and aggravating the spread of intracellular resistance genes . | CHEMICAL ENGINEERING JOURNAL , 2024 , 489 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
The heterotrophic nitrification-aerobic denitrification (HNAD) strain Exiguobacterium H1 (H1) was isolated in this study. The changes in nitrogen metabolism functions of H1 strain were discussed in presence of disinfectants chloroxylenol (PCMX) and benzethonium chloride (BEC) alone and combined pollution (PCMX+BEC). The H1 strain could use NH4+-N, NO2- -N and NO3 --N as nitrogen sources and had good nitrogen removal performance under conditions of C/N ratio 25, pH 5-8, 25-35 oC and sodium acetate as carbon. PCMX and BEC alone exhibited hormesis effects on H1 strain which promoted the growth of H1 strain at low concentrations but inhibited it at high concentrations, and combined pollution showed synergistic inhibitory on H1 strain. H1 strain owned a full nitrogen metabolic pathway according to functional genes quantification. PCMX encouraged nitrification process of H1, while BEC and combined pollution mostly blocked nitrogen removal. PCMX, but not BEC, mainly led to the enrichment of resistance genes. These findings will aid in systematic assessment of contaminant tolerance characteristics of HNAD strain and its application prospects.
关键词 ：
Heterotrophic nitrification-aerobic denitrifica- Heterotrophic nitrification-aerobic denitrifica- Hormesis effects Hormesis effects Resistance genes Resistance genes Chloroxylenol and benzethonium chloride Chloroxylenol and benzethonium chloride Oxidative stress Oxidative stress tion tion
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Guo, Yi , Gao, Jingfeng , Cui, Yingchao et al. Hormesis and synergistic effects of disinfectants chloroxylenol and benzethonium chloride on highly efficient heterotrophic nitrification-aerobic denitrification functional strain: From performance to mechanism [J]. | JOURNAL OF HAZARDOUS MATERIALS , 2024 , 476 . |
| MLA | Guo, Yi et al. "Hormesis and synergistic effects of disinfectants chloroxylenol and benzethonium chloride on highly efficient heterotrophic nitrification-aerobic denitrification functional strain: From performance to mechanism" . | JOURNAL OF HAZARDOUS MATERIALS 476 (2024) . |
| APA | Guo, Yi , Gao, Jingfeng , Cui, Yingchao , Zhao, Yifan , Ma, Biao , Zeng, Liqin et al. Hormesis and synergistic effects of disinfectants chloroxylenol and benzethonium chloride on highly efficient heterotrophic nitrification-aerobic denitrification functional strain: From performance to mechanism . | JOURNAL OF HAZARDOUS MATERIALS , 2024 , 476 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Dialkyldimethyl ammonium compound (DADMAC) is widely used in daily life as a typical disinfectant and often co-exists with the heavy metal zinc in sewage environments. This study investigated the effects of co-exposure to zinc (1 mg/L) and DADMAC (0.2-5 mg/L) on the performance, bacterial community, and resistance genes (RGs) in a partial sulfur autotrophic denitrification coupled with anaerobic ammonium oxidation (PSAD-Anammox) system in a sequencing batch moving bed biofilm reactor for 150 days. Co-exposure to zinc and low concentration (0.2 mg/L) DADMAC did not affect the nitrogen removal ability of the PASD-Anammox system, but increased the abundance and transmission risk of free RGs in water. Co-exposure to zinc and medium-to-high (2-5 mg/L) DADMAC led to fluctuations in and inhibition of nitrogen removal, which might be related to the enrichment of heterotrophic denitrifying bacteria dominated by Denitratisoma. Co-exposure to zinc and high concentration DADMAC (5 mg/L) stimulated the secretion of extracellular polymeric substances and increased the proliferation risk of intracellular RGs in sludge. This study provided insights into the application of PSADAnammox system and the ecological risks of wastewater containing zinc and DADMAC.
关键词 ：
Partial sulfur autotrophic denitrification coupled with Anammox Partial sulfur autotrophic denitrification coupled with Anammox Dialkyldimethyl ammonium compound Dialkyldimethyl ammonium compound Resistance genes Resistance genes Mobile genetic element Mobile genetic element Zinc Zinc
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Yuan, Yukun , Gao, Jingfeng , Wang, Zhiqi et al. Exposure to zinc and dialkyldimethyl ammonium compound alters bacterial community structure and resistance gene levels in partial sulfur autotrophic denitrification coupled with the Anammox process [J]. | JOURNAL OF HAZARDOUS MATERIALS , 2024 , 476 . |
| MLA | Yuan, Yukun et al. "Exposure to zinc and dialkyldimethyl ammonium compound alters bacterial community structure and resistance gene levels in partial sulfur autotrophic denitrification coupled with the Anammox process" . | JOURNAL OF HAZARDOUS MATERIALS 476 (2024) . |
| APA | Yuan, Yukun , Gao, Jingfeng , Wang, Zhiqi , Xu, Hongxin , Zeng, Liqin , Fu, Xiaoyu et al. Exposure to zinc and dialkyldimethyl ammonium compound alters bacterial community structure and resistance gene levels in partial sulfur autotrophic denitrification coupled with the Anammox process . | JOURNAL OF HAZARDOUS MATERIALS , 2024 , 476 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Benzethonium chloride (BZC) and methylparaben (MeP) are commonly added into cosmetics as preservatives, which are frequently detected in wastewater treatment plants. Different response patterns of denitrification system were proposed under single and combined exposure to BZC and MeP (0, 0.5, 5 mg/L) by evaluating system performance, functional genes, extracellular polymeric substance (EPS), cytotoxicity, microbial community structure and resistance genes (RGs). The inhibition effect of BZC on denitrification system was stronger than MeP, and the co-exposure of BZC and MeP showed synergistic effect, enhancing the inhibition effect of BZC single exposure. BZC and/or MeP could promote the diffusion of RGs in sludge, including intracellular RGs (siRGs) and extracellular RGs (se-RGs). Moreover, the single exposure of BZC and co-exposure of BZC and MeP increased the dissemination risks of RGs in water (w-RGs). IntI1 and tnpA-04, mobile genetic elements (MGEs), correlated positively with diverse RGs from different fractions. Notably, the spread of RGs through horizontal gene transfer mediated by MGEs and the flow of si-RGs into extracellular and water were observed in this study.
关键词 ：
Microbial community Microbial community Methylparaben Methylparaben Intracellular and extracellular resistance genes Intracellular and extracellular resistance genes Benzethonium chloride Benzethonium chloride Heterotrophic denitrification system Heterotrophic denitrification system
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Zhang, Ke , Gao, Jingfeng , Lu, Tianyi et al. Evolution of microbial community and resistance genes in denitrification system under single and combined exposure to benzethonium chloride and methylparaben [J]. | JOURNAL OF HAZARDOUS MATERIALS , 2024 , 480 . |
| MLA | Zhang, Ke et al. "Evolution of microbial community and resistance genes in denitrification system under single and combined exposure to benzethonium chloride and methylparaben" . | JOURNAL OF HAZARDOUS MATERIALS 480 (2024) . |
| APA | Zhang, Ke , Gao, Jingfeng , Lu, Tianyi , Wang, Yuxuan , Zhang, Jinming , An, Jiawen et al. Evolution of microbial community and resistance genes in denitrification system under single and combined exposure to benzethonium chloride and methylparaben . | JOURNAL OF HAZARDOUS MATERIALS , 2024 , 480 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
The proliferation of antibiotic resistant genes (ARGs) and antibiotic resistant bacteria (ARB) caused by antibiotic abuse has raised concerns about the global infectious-disease crisis. This study employed periodate (PI)/ferrate (VI) (Fe (VI)) system to disinfect Gram-negative ARB ( Escherichia coli DH5 alpha) and Gram-positive bacteria ( Bacillus subtilis ATCC6633). The PI/Fe (VI) system could inactivate 1 x 108 8 CFU/mL of Gram-negative ARB and Grampositive bacteria by 4.0 and 2.8 log in 30 min. Neutral and acidic pH, increase of PI dosage and Fe (VI) dosage had positive impacts on the inactivation efficiency of ARB, while alkaline solution and the coexistence of 10 mM Cl-,- , NO3-, 3- , SO42-and 4 2- and 20 mg/L humic acid had slightly negative impacts. The reactive species generated by PI/Fe (VI) system could disrupt the integrity of cell membrane and wall, leading to oxidative stress and lipid peroxidation. Intracellular hereditary substance, including DNA and ARGs (tetA), tetA ), would leak into the external environment through damaged cells and be degraded. The electron spin resonance analysis and quenching experiments indicated that Fe (IV)/Fe (V) played a leading role in disinfection. Meanwhile, PI/Fe (VI) system also had an efficient removal effect on sulfadiazine, which was expected to inhibit the ARGs transmission from the source.
关键词 ：
Antibiotic resistant bacteria Antibiotic resistant bacteria Disinfection Disinfection Antibiotic resistant genes Antibiotic resistant genes Ferrate (VI) Ferrate (VI) Periodate Periodate
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Chen, Hao , Gao, Jingfeng , Wang, Qian et al. The synergistic effect of periodate/ferrate (VI) system on disinfection of antibiotic resistant bacteria and removal of antibiotic resistant genes: The dominance of Fe (IV)/Fe (V) [J]. | JOURNAL OF HAZARDOUS MATERIALS , 2024 , 470 . |
| MLA | Chen, Hao et al. "The synergistic effect of periodate/ferrate (VI) system on disinfection of antibiotic resistant bacteria and removal of antibiotic resistant genes: The dominance of Fe (IV)/Fe (V)" . | JOURNAL OF HAZARDOUS MATERIALS 470 (2024) . |
| APA | Chen, Hao , Gao, Jingfeng , Wang, Qian , Liu, Ying , Wu, Lei , Fu, Xiaoyu et al. The synergistic effect of periodate/ferrate (VI) system on disinfection of antibiotic resistant bacteria and removal of antibiotic resistant genes: The dominance of Fe (IV)/Fe (V) . | JOURNAL OF HAZARDOUS MATERIALS , 2024 , 470 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Phenacetin (PNCT) belongs to one of the earliest synthetic antipyretics. However, impact of PNCT on nitrifying microorganisms in wastewater treatment plants and its potential microbial mechanism was still unclear. In this study, PN could be initiated within six days by PNCT anaerobic soaking treatment (8 mg/L). In order to improve the stable performance of PN, 21 times of PNCT aerobic soaking treatment every three days was conducted and PN was stabilized for 191 days. After PN was damaged, ten times of PNCT aerobic soaking treatment every three days was conducted and PN was recovered after once soaking, maintained over 88 days. Ammonia oxidizing bacteria might change the dominant oligotype to gradually adjust to PNCT, and the increase of abundance and activity of Nitrosomonas promoted the initiation of PN. For nitrite-oxidizing bacteria (NOB), the increase of Candidatus Nitrotoga and Nitrospira destroyed PN, but PN could be recovered after once aerobic soaking illustrating NOB was not resistant to PNCT. KEGG and COG analysis suggested PNCT might disrupt rTCA cycle of Nitrospira, resulting in the decrease of relative abundance of Nitrospira. Moreover, PNCT did not lead to the sharp increase of absolute abundances of antibiotic resistance genes (ARGs), and the risk of ARGs transmission was negligible.
关键词 ：
Soaking treatment Soaking treatment Antibiotic resistance genes Antibiotic resistance genes Rapid start-up Rapid start-up Stable maintenance Stable maintenance Partial nitrification Partial nitrification Phenacetin Phenacetin
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Zhang, Yi , Wu, Zejie , Gao, Yongqing et al. Phenacetin promoted the rapid start-up and stable maintenance of partial nitrification: Responses of nitrifiers and antibiotic resistance genes [J]. | SCIENCE OF THE TOTAL ENVIRONMENT , 2024 , 933 . |
| MLA | Zhang, Yi et al. "Phenacetin promoted the rapid start-up and stable maintenance of partial nitrification: Responses of nitrifiers and antibiotic resistance genes" . | SCIENCE OF THE TOTAL ENVIRONMENT 933 (2024) . |
| APA | Zhang, Yi , Wu, Zejie , Gao, Yongqing , Gao, Jingfeng , Bao, Fangbo , Zhao, Yifan et al. Phenacetin promoted the rapid start-up and stable maintenance of partial nitrification: Responses of nitrifiers and antibiotic resistance genes . | SCIENCE OF THE TOTAL ENVIRONMENT , 2024 , 933 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Whether it's necessary to extra chemical synthesis steps to modify nZVI in peroxymonosulfate (PMS) activation process are worth to further investigation. The 56 mg/L nZVI/153.65 mg/L PMS and 56 mg/L sulfidated nZVI (S-nZVI) (S/Fe molar ratio = 1:5)/153.65 mg/L PMS) processes could effectively attain 97.7% (with kobs of 3.7817 min(-1)) and 97.0% (with k(obs) of 3.4966 min(-1)) of the degradation of 20 mg/L sulfadiazine (SDZ) in 1 min, respectively. The nZVI/PMS system could quickly achieve 85.5% degradation of 20 mg/L SDZ in 1 min and effectively inactivate 99.99% of coexisting Pseudomonas. HLS-6 (5.81-log) in 30 min. Electron paramagnetic resonance tests and radical quenching experiments determined SO4 center dot-, HO center dot, O-1(2) and O-2(center dot-) were responsible for SDZ degradation. The nZVI/PMS system could still achieve the satisfactory degradation efficiency of SDZ under the influence of humic acid (exceeded 96.1%), common anions (exceeded 67.3%), synthetic wastewater effluent (exceeded 90.7%) and real wastewater effluent (exceeded 78.7%). The high degradation efficiency of tetracycline (exceeded 98.9%) and five common disinfectants (exceeded 96.3%) confirmed the applicability of the two systems for pollutants removal. It's no necessary to extra chemical synthesis steps to modify nZVI for PMS activation to remove both chemical and biological pollutants.
关键词 ：
Sulfadiazine degradation Sulfadiazine degradation Sulfidated modification Sulfidated modification Sulfadiazine resistance bacteria removal Sulfadiazine resistance bacteria removal Nanoscale zerovalent iron Nanoscale zerovalent iron Peroxymonosulfate Peroxymonosulfate
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Liu, Ying , Gao, Jingfeng , Wang, Qian et al. Efficient peroxymonosulfate activation by nanoscale zerovalent iron for removal of sulfadiazine and sulfadiazine resistance bacteria: Sulfidated modification or not [J]. | JOURNAL OF HAZARDOUS MATERIALS , 2024 , 469 . |
| MLA | Liu, Ying et al. "Efficient peroxymonosulfate activation by nanoscale zerovalent iron for removal of sulfadiazine and sulfadiazine resistance bacteria: Sulfidated modification or not" . | JOURNAL OF HAZARDOUS MATERIALS 469 (2024) . |
| APA | Liu, Ying , Gao, Jingfeng , Wang, Qian , Chen, Hao , Zhang, Yi , Fu, Xiaoyu . Efficient peroxymonosulfate activation by nanoscale zerovalent iron for removal of sulfadiazine and sulfadiazine resistance bacteria: Sulfidated modification or not . | JOURNAL OF HAZARDOUS MATERIALS , 2024 , 469 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
As a type of quaternary ammonium compounds, didodecyl dimethyl ammonium chloride (DADMAC C12) was frequently detected in wastewater treatment plants. Here, floc-based sequencing batch reactor (FSBR), granule -based SBR (GSBR) and biofilm SBR (BSBR) were fed with 0.5, 5 and 10 mg/L of DADMAC C12 for 120 d. Compared with floc sludge and granule sludge, biofilm had the strongest ability to resist the impact of DADMAC C12. Notably, in both FSBR and GSBR systems, 5 mg/L DADMAC C12 promoted denitrification sludge to become hydrophobic and compact due to an increase in alpha-Helix/(beta-Sheet+Random coil), consequently enhancing sludge granulation. Besides,high concentration of DADMAC C12 generally increased the abundances of MGEs in three denitrification systems, except extracellular MGEs in water. The variation of efflux pump ARGs was basically consistent with that of MGEs. The stimulation of DADMAC C12 also increased significantly the abundance of extracellular antibiotics deactivation ARGs in water in three denitrification systems. Besides, DADMAC C12 induced co-selection among various ARGs and promoted the proliferation and spread of sulfonamide ARGs in water.
关键词 ：
Extracellular and intracellular antibiotic Extracellular and intracellular antibiotic Denitrification system Denitrification system resistance genes resistance genes Didodecyl dimethyl ammonium chloride Didodecyl dimethyl ammonium chloride Three forms of sludge Three forms of sludge Microbial community structure Microbial community structure
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Zhao, Mingyan , Gao, Jingfeng , Cui, Yingchao et al. The effects of didodecyl dimethyl ammonium chloride on microbial communities and resistance genes in floc, granular and biofilm denitrification sludge [J]. | SCIENCE OF THE TOTAL ENVIRONMENT , 2024 , 906 . |
| MLA | Zhao, Mingyan et al. "The effects of didodecyl dimethyl ammonium chloride on microbial communities and resistance genes in floc, granular and biofilm denitrification sludge" . | SCIENCE OF THE TOTAL ENVIRONMENT 906 (2024) . |
| APA | Zhao, Mingyan , Gao, Jingfeng , Cui, Yingchao , Zhang, Haoran , Wang, Zhiqi , Zhang, Shujun et al. The effects of didodecyl dimethyl ammonium chloride on microbial communities and resistance genes in floc, granular and biofilm denitrification sludge . | SCIENCE OF THE TOTAL ENVIRONMENT , 2024 , 906 . |
| 导入链接 | NoteExpress RIS BibTex |
导出
| 数据： |
选中 到 |
| 格式： |
