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Tang Z, Liu H, Wang Y, Wang Q, Zhang L, An F, Chen Y. Impacts of cefalexin on nitrite accumulation, antibiotic degradation, and microbial community structure in nitrification systems. JOURNAL OF HAZARDOUS MATERIALS 2024; 478:135430. [PMID: 39178773 DOI: 10.1016/j.jhazmat.2024.135430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 07/30/2024] [Accepted: 08/03/2024] [Indexed: 08/26/2024]
Abstract
The intensive use of various antibiotics for clinical and agricultural purposes has resulted in their widespread use in wastewater treatment plants. However, little research has been conducted on the effects of antibiotics on nitrite accumulation, antibiotic degradation pathways, or the microbial community structure in nitrification systems. In this study, a laboratory-scale sequencing batch reactor was used to treat wastewater containing cefalexin (CFX) at different doses (5, 10, 15, and 20 mg/L). The results showed that the nitrification performance was gradually inhibited with increasing CFX concentration. Ammonia-oxidizing bacteria (AOB) are more tolerant to CFX than nitrite-oxidizing bacteria (NOB). Under 15 mg/L of CFX, NOB were completely suppressed, whereas AOB were partially inhibited, as evidenced by an ammonium removal efficiency of 60 % and a 90 % of nitrite accumulation ratio. The partial nitritation was achieved. CFX can be degraded into 2-hydroxy-3phenylpyrazine and cyclohexane through bacterial co-metabolism, and CFX degradation gradually diminishes with decreasing nitrification performance. The abundance of Nitrospira gradually decreased with increasing CFX concentration. Ferruginibacter, Hydrogenophaga, Thauera, and Pseudoxanthomonas were detected at relative abundances of 13.2 %, 0.4 %, 0.9 %, and 1.3 %, respectively, indicating their potential roles in antibiotic degradation. These findings provide insight into the interactions between antibiotics and microbial communities, which are beneficial for a better understanding of antibiotic degradation in nitrification systems.
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Affiliation(s)
- Zhiqiang Tang
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China; Technical Center of Sewage Treatment Industry in Gansu, Lanzhou 730070, China
| | - Hong Liu
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China; Technical Center of Sewage Treatment Industry in Gansu, Lanzhou 730070, China
| | - Yunxia Wang
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China; Technical Center of Sewage Treatment Industry in Gansu, Lanzhou 730070, China
| | - Qi Wang
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China; Technical Center of Sewage Treatment Industry in Gansu, Lanzhou 730070, China
| | - Li Zhang
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China; Technical Center of Sewage Treatment Industry in Gansu, Lanzhou 730070, China
| | - Fangjiao An
- School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China
| | - Yongzhi Chen
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China; Technical Center of Sewage Treatment Industry in Gansu, Lanzhou 730070, China.
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2
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Zhou Z, Huang F, Chen L, Liu F, Wang B, Tang J. Effects of antibiotics on microbial nitrogen cycling and N 2O emissions: A review. CHEMOSPHERE 2024; 357:142034. [PMID: 38615962 DOI: 10.1016/j.chemosphere.2024.142034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 03/31/2024] [Accepted: 04/11/2024] [Indexed: 04/16/2024]
Abstract
Sulfonamides, quinolones, tetracyclines, and macrolides are the most prevalent classes of antibiotics used in both medical treatment and agriculture. The misuse of antibiotics leads to their extensive dissemination in the environment. These antibiotics can modify the structure and functionality of microbial communities, consequently impacting microbial-mediated nitrogen cycling processes including nitrification, denitrification, and anammox. They can change the relative abundance of nirK/norB contributing to the emission of nitrous oxide, a potent greenhouse gas. This review provides a comprehensive examination of the presence of these four antibiotic classes across different environmental matrices and synthesizes current knowledge of their effects on the nitrogen cycle, including the underlying mechanisms. Such an overview is crucial for understanding the ecological impacts of antibiotics and for guiding future research directions. The presence of antibiotics in the environment varies widely, with significant differences in concentration and type across various settings. We conducted a comprehensive review of over 70 research articles that compare various aspects including processes, antibiotics, concentration ranges, microbial sources, experimental methods, and mechanisms of influence. Antibiotics can either inhibit, have no effect, or even stimulate nitrification, denitrification, and anammox, depending on the experimental conditions. The influence of antibiotics on the nitrogen cycle is characterized by dose-dependent responses, primarily inhibiting nitrification, denitrification, and anammox. This is achieved through alterations in microbial community composition and diversity, carbon source utilization, enzyme activities, electron transfer chain function, and the abundance of specific functional enzymes and antibiotic resistance genes. These alterations can lead to diminished removal of reactive nitrogen and heightened nitrous oxide emissions, potentially exacerbating the greenhouse effect and related environmental issues. Future research should consider diverse reaction mechanisms and expand the scope to investigate the combined effects of multiple antibiotics, as well as their interactions with heavy metals and other chemicals or organisms.
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Affiliation(s)
- Zikun Zhou
- MOE Key Laboratory of Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang, Sichuan, PR China
| | - Fuyang Huang
- MOE Key Laboratory of Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang, Sichuan, PR China.
| | - Linpeng Chen
- Key Laboratory of Groundwater Conservation of MWR, China University of Geosciences (Beijing), Beijing, PR China
| | - Fei Liu
- Key Laboratory of Groundwater Conservation of MWR, China University of Geosciences (Beijing), Beijing, PR China
| | - Bin Wang
- MOE Key Laboratory of Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang, Sichuan, PR China.
| | - Jie Tang
- College of Environment and Civil Engineering, Chengdu University of Technology, Chengdu, Sichuan, PR China
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Yang JH, Fu JJ, Jia ZY, Geng YC, Ling YR, Fan NS, Jin RC. Microbial response and recovery strategy of the anammox process under ciprofloxacin stress from pure strain and consortia perspectives. ENVIRONMENT INTERNATIONAL 2024; 186:108599. [PMID: 38554504 DOI: 10.1016/j.envint.2024.108599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 03/19/2024] [Accepted: 03/21/2024] [Indexed: 04/01/2024]
Abstract
Ciprofloxacin (CIP) poses a high risk of resistance development in water environments. Therefore, comprehensive effects and recovery strategies of CIP in anaerobic ammonia oxidation (anammox) process were systematically elucidated from consortia and pure strains perspectives. The anammox consortia was not significantly affected by the stress of 10 mg L-1 CIP, while the higher concentration (20 mg L-1) of CIP caused a dramatic reduction in the nitrogen removal performance of anammox system. Simultaneously, the abundances of dominant functional bacteria and corresponding genes also significantly decreased. Such inhibition could not be mitigated by the recovery strategy of adding hydrazine and hydroxylamine. Reducing nitrogen load rate from 5.1 to 1.4 kg N m-3 d-1 promoted the restoration of three reactors. In addition, the robustness and recovery of anammox systems was evaluated using starvation and shock strategies. Simultaneously, antibiotic resistance genes and key metabolic pathways of anammox consortia were upregulated, such as carbohydrate and energy metabolisms. In addition, 11 pure stains were isolated from the anammox system and identified through phylogenetic analysis, 40 % of which showed multidrug resistance, especially Pseudomonas. These findings provide deep insights into the responding mechanism of anammox consortia to CIP stress and promote the application of anammox process for treating wastewater containing antibiotics.
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Affiliation(s)
- Jun-Hui Yang
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Jin-Jin Fu
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Zi-Yu Jia
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Yin-Ce Geng
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Yi-Rong Ling
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Nian-Si Fan
- School of Engineering, Hangzhou Normal University, Hangzhou 310018, China; Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China.
| | - Ren-Cun Jin
- School of Engineering, Hangzhou Normal University, Hangzhou 310018, China; Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
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Qin Y, Wei Q, Chen R, Jiang Z, Qiu Y, Jiang Y, Li L. Roles of red mud-based biochar carriers in the recovery of anammox activity: characteristics and mechanisms. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:20488-20498. [PMID: 38376779 DOI: 10.1007/s11356-024-32263-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 01/26/2024] [Indexed: 02/21/2024]
Abstract
Anaerobic ammonium oxidation (anammox) sludge is easily deactivated in the process of treating ammonia-laden wastewater. To investigate an effective recovery method, red mud-based biochar carriers (RMBC) were prepared and added to a deactivated anammox reactor; the operation of this reactor had been interrupted for 6 months with starvation and low temperature. The deactivated sludge with added RMBC was recovered rapidly after 31 days, with the specific anammox activity rapidly increasing to 0.84 g N/(g VSS∙day), and the recovery efficiency of nitrogen removal rate increased by four times compared to the unadded control. The granulation degree and extracellular polymeric substances secretion of the anammox sludge with the added RMBC were significantly higher than that of the control group. In addition, a large number of spherical anammox bacteria were observed moored at the porous channels of RMBC, and the copy numbers of functional genes of anammox bacteria were approximately twice that of the control group. Hence, RMBC is a potential sludge activator, and it can provide a "house" to protect anammox bacteria, enhance the metabolic activity and the agglomerative growth of anammox bacteria, and synergistically achieve rapid recovery of deactivated anammox sludge.
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Affiliation(s)
- Yongli Qin
- School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin, 541004, China
| | - Qiaoyan Wei
- School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin, 541004, China
| | - Ruihong Chen
- School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin, 541004, China
| | - Zhicheng Jiang
- School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin, 541004, China
| | - Yuchen Qiu
- School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin, 541004, China
| | - Yongrong Jiang
- School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin, 541004, China.
| | - Li Li
- School of Electronic Engineering and Automation, Guilin University of Electronic Technology, Guilin, 541004, China
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Zhao Y, Gao J, Wang Z, Zhang Y, Zhao M, Zhang H, Yuan Y. Successive exposure to traditional disinfectants and quaternary ammonium compounds enhances resistance genes expression and co-selection in biofilm-based partial nitrification-anammox systems. WATER RESEARCH 2023; 247:120760. [PMID: 37897997 DOI: 10.1016/j.watres.2023.120760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 09/30/2023] [Accepted: 10/18/2023] [Indexed: 10/30/2023]
Abstract
Quaternary ammonium compounds (QACs) are recommended disinfectants with surfactant properties, surpassing triclosan (TCS) and chloroxylenol (PCMX). Given the transition from traditional disinfectants, it is essential to investigate their impacts on biological nitrogen removal systems and the fate of resistance genes (RGs). In this study, three biofilm-based partial nitrification-anammox (PN/A) systems were established. A reactor named PD was successively exposed to 1 mg/L PCMX and 3 mg/L dioctadecyldimethylammonium chloride (DODMAC, a common QACs). A reactor named TD was successively exposed to 1 mg/L TCS and 3 mg/L DODMAC. A reactor named CD served as a control with only 3 mg/L DODMAC exposure. Results indicated that the total nitrogen removal performance of CD deteriorated markedly with DODMAC exposure compared to that of PD and TD. This phenomenon correlated closely with variations in RGs and their co-selection patterns. Pre-exposure to PCMX or TCS increased the abundance of RGs in the extracellular DNA of the PN/A biofilm, but reduced RGs abundances in the extracellular DNA of water. The tolerance of the PN/A system to successive exposure to the two disinfectants may be strengthened through co-selection of QACs RGs (qacEdelta1-01, qacEdelta1-02, qacH-01 and qacH-02) and mobile genetic elements (intI1 and tnpA-04). Furthermore, potential hosts of RGs are crucial for maintaining PN/A performance. Accumulation of extracellular polymeric substances, reactive oxygen species, and lactate dehydrogenase plays vital roles in the accumulation and transmission of RGs within the PN/A system.
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Affiliation(s)
- Yifan Zhao
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Jingfeng Gao
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China.
| | - Zhiqi Wang
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Yi Zhang
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Mingyan Zhao
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Haoran Zhang
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Yukun Yuan
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
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Zhang QQ, Yu Y, Liu JZ, Fu WJ, Quan JY, Chen Y, Zhao JQ, Wang S, Jin RC. Evaluation the role of soluble microbial products for denitrification sludge characteristic under starvation stress. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 882:163319. [PMID: 37030357 DOI: 10.1016/j.scitotenv.2023.163319] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 03/18/2023] [Accepted: 04/02/2023] [Indexed: 06/01/2023]
Abstract
Physiological changes with the assist role of soluble microbial products (SMP) of preserved denitrifying sludge (DS) undergoing long-term stress of starvation under different storage temperature is extremely important. In this study, SMP extracted from DS were added into DS in starvation condition under room temperature (15-20 °C), 4 °C and -20 °C with three different bio-augmentation phases of 10, 15 and 30 days. Experimental results showed that added SMP in room temperature was optimal for preservation of DS under starvation stress with optimized dosage of 2.0 mL mL-1 sludge and bio-augmentation phase of 10 d. SMP was more effective in maintaining the specific denitrification activity of DS, and it was nearly boosted to 94.1 % of control one due to assist of 2 times SMP addition with 10 days interval of each. Under assist of SMP, extracellular polymeric substances (EPS) secretion was enhanced as the defense layer to withstand starvation stress, and the protein may be utilized as an alternative substrate to gain energy, accelerate electron transport and transfer during denitrification process. This investigation revealed the feasibility of SMP as an economical and robust strategy for preservation of DS.
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Affiliation(s)
- Qian-Qian Zhang
- School of Water and Environment, Chang'an University, Xi'an 710054, China; Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang'an University, Xi'an 710054, China.
| | - Yan Yu
- School of Water and Environment, Chang'an University, Xi'an 710054, China
| | - Jin-Ze Liu
- School of Water and Environment, Chang'an University, Xi'an 710054, China
| | - Wen-Jing Fu
- School of Water and Environment, Chang'an University, Xi'an 710054, China
| | - Jin-Yang Quan
- School of Water and Environment, Chang'an University, Xi'an 710054, China
| | - Ying Chen
- School of Water and Environment, Chang'an University, Xi'an 710054, China; Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang'an University, Xi'an 710054, China
| | - Jian-Qiang Zhao
- School of Water and Environment, Chang'an University, Xi'an 710054, China; Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang'an University, Xi'an 710054, China
| | - Sha Wang
- College of Environment and Life Sciences, Weinan Normal University, Weinan 714099, Shaanxi, China
| | - Ren-Cun Jin
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
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Chen X, Liu L, Bi Y, Meng F, Wang D, Qiu C, Yu J, Wang S. A review of anammox metabolic response to environmental factors: Characteristics and mechanisms. ENVIRONMENTAL RESEARCH 2023; 223:115464. [PMID: 36773633 DOI: 10.1016/j.envres.2023.115464] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/18/2023] [Accepted: 02/08/2023] [Indexed: 06/18/2023]
Abstract
Anaerobic ammonium oxidation (anammox) is a promising low carbon and economic biological nitrogen removal technology. Considering the anammox technology has been easily restricted by environmental factors in practical engineering applications, therefore, it is necessary to understand the metabolic response characteristics of anammox bacteria to different environmental factors, and then guide the application of the anammox process. This review presented the latest advances of the research progress of the effects of different environmental factors on the metabolic pathway of anammox bacteria. The effects as well as mechanisms of conventional environmental factors and emerging pollutants on the anammox metabolic processes were summarized. Also, the role of quorum sensing (QS) mediating the bacteria growth, gene expression and other metabolic process in the anammox system were also reviewed. Finally, interaction and cross-feeding mechanisms of microbial communities in the anammox system were discussed. This review systematically summarized the variations of metabolic mechanism response to the external environment and cross-feeding interactions in the anammox process, which would provide an in-depth understanding for the anammox metabolic process and a comprehensive guidance for future anammox-related metabolic studies and engineering applications.
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Affiliation(s)
- Xiaoying Chen
- School of Environmental and Municipal Engineering, Tianjin Chengjian University, Jinjing Road 26, Tianjin, 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Jinjing Road 26, Tianjin, China
| | - Lingjie Liu
- School of Environmental and Municipal Engineering, Tianjin Chengjian University, Jinjing Road 26, Tianjin, 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Jinjing Road 26, Tianjin, China
| | - Yanmeng Bi
- School of Environmental and Municipal Engineering, Tianjin Chengjian University, Jinjing Road 26, Tianjin, 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Jinjing Road 26, Tianjin, China
| | - Fansheng Meng
- School of Environmental and Municipal Engineering, Tianjin Chengjian University, Jinjing Road 26, Tianjin, 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Jinjing Road 26, Tianjin, China
| | - Dong Wang
- School of Environmental and Municipal Engineering, Tianjin Chengjian University, Jinjing Road 26, Tianjin, 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Jinjing Road 26, Tianjin, China
| | - Chunsheng Qiu
- School of Environmental and Municipal Engineering, Tianjin Chengjian University, Jinjing Road 26, Tianjin, 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Jinjing Road 26, Tianjin, China
| | - Jingjie Yu
- School of Environmental and Municipal Engineering, Tianjin Chengjian University, Jinjing Road 26, Tianjin, 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Jinjing Road 26, Tianjin, China
| | - Shaopo Wang
- School of Environmental and Municipal Engineering, Tianjin Chengjian University, Jinjing Road 26, Tianjin, 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Jinjing Road 26, Tianjin, China.
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Zhang Y, Wang G, Liu H, Dai X. Application of spray-dried erythromycin fermentation residue as a soil amendment: antibiotic resistance genes, nitrogen cycling, and microbial community structure. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:20547-20557. [PMID: 36255578 DOI: 10.1007/s11356-022-23361-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 09/26/2022] [Indexed: 06/16/2023]
Abstract
Erythromycin fermentation residue (EFR) after spray drying could be reused as a soil amendment. However, the effects of spray-dried EFR on antibiotic resistance genes (ARGs), nitrogen cycling, and microbial community structure in soil are rarely reported. In this study, a pot experiment was conducted by adding spray-dried EFR to soil. For the application of 1.0% spray-dried EFR, the residual erythromycin (ERY) could be rapidly removed with the half-life of 22.2 d; the total relative abundance of ARGs increased at first, but decreased to the initial level of the control group in the end; genes related to ammonium assimilation (glnA, gltB, gltD), ammonification (gdhA, gudB, cynT, cynS, ncd2), denitrification (narI, narG, narH), assimilatory nitrate reduction (nirA, nasA), and dissimilatory nitrate reduction (nirD) were enriched; soil microbial community structure presented temporary variation. Network analysis showed significant negative correlations between ARGs and nitrogen cycling genes. The addition of 6.0% spray-dried EFR resulted in the amplification of ARGs and inhibition of nitrogen cycling. This work provides new insights into the effects of spray-dried EFR on ARGs, nitrogen cycling, and microbial community structure within the fertilized soil.
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Affiliation(s)
- Yanxiang Zhang
- School of Environmental and Material Engineering, Yantai University, Yantai, 264005, Shandong, China
| | - Gang Wang
- School of Environmental and Material Engineering, Yantai University, Yantai, 264005, Shandong, China
| | - Huiling Liu
- School of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China.
| | - Xiaohu Dai
- School of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
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9
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Lai X, Li X, Song J, Yuan H, Duan L, Li N, Wang Y. Nitrogen loss from the coastal shelf of the East China Sea: Implications of the organic matter. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 854:158805. [PMID: 36113798 DOI: 10.1016/j.scitotenv.2022.158805] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 08/17/2022] [Accepted: 09/12/2022] [Indexed: 06/15/2023]
Abstract
Organic matter is a critical factor which regulates nitrogen loss pathways of denitrification and anammox for microbes in marine ecosystems. However, only a little attention has been paid to contrasting studies on denitrification and anammox in sandy and muddy sediments, especially in the coastal continental shelf dominated by sandy sediments. This study determined the bulk properties and associated microbial nitrogen transformation processes of surface sediments in the East China Sea coastal shelf, with the aim of gaining insight into the interaction of nitrogen loss with organic matter at the molecular level. The results illustrate that nitrogen loss dominates in organic-rich muddy sediments, and its denitrification rate (14.39 nmol N g-1 h-1) and anammox rate (2.73 nmol N g-1 h-1) are greater than those of sandy sediments (denitrification rate = 5.55 nmol N g-1 h-1, anammox rate = 1.57 nmol N g-1 h-1). Furthermore, determination of the mean summed ladderanes shows higher anammox generated in the muddy sediments with a value of 167.78 ng g-1dw. Quantitative analysis demonstrated that organic-rich muddy sediments enhanced the copy number of the denitrifying functional gene nosZ and anammox functional gene hzsB. We inferred that the greater rate of nitrogen loss in muddy sediments was due to the coupling relationship between anammox and denitrification. Overall, the community distribution and abundance of denitrifying bacteria and anammox bacteria changed intricately under the influence of organic matter. Moreover, this study further improves the understanding of nitrogen loss pathways and mechanistic factors from sediments.
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Affiliation(s)
- Xiaoshuang Lai
- Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Ecology and Environmental Sciences, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; University of Chinese Academy of Sciences, Beijing, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, China
| | - Xuegang Li
- Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Ecology and Environmental Sciences, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; University of Chinese Academy of Sciences, Beijing, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, China.
| | - Jinming Song
- Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Ecology and Environmental Sciences, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; University of Chinese Academy of Sciences, Beijing, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, China.
| | - Huamao Yuan
- Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Ecology and Environmental Sciences, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; University of Chinese Academy of Sciences, Beijing, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, China
| | - Liqin Duan
- Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Ecology and Environmental Sciences, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; University of Chinese Academy of Sciences, Beijing, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, China
| | - Ning Li
- Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Ecology and Environmental Sciences, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; University of Chinese Academy of Sciences, Beijing, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, China; Public Technology Service Center, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
| | - Yingxia Wang
- Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Ecology and Environmental Sciences, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; University of Chinese Academy of Sciences, Beijing, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, China; Public Technology Service Center, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
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10
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Zhang QQ, Liu N, Liu JZ, Yu Y, Fu WJ, Zhao JQ, Jin RC. Decoding the response of complete autotrophic nitrogen removal over nitrite (CANON) performance and microbial succession to hydrazine and hydroxylamine: Linking performance to mechanism. BIORESOURCE TECHNOLOGY 2022; 363:127948. [PMID: 36108938 DOI: 10.1016/j.biortech.2022.127948] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 09/05/2022] [Accepted: 09/07/2022] [Indexed: 06/15/2023]
Abstract
The influence of hydrazine (N2H4) and hydroxylamine (NH2OH) on performance and microbial community structures of complete autotrophic nitrogen removal over nitrite (CANON) process were assessed in this study. Experimental results demonstrated that CANON process was successfully started up and got total nitrogen removal efficiency (TNRE) of 53.6 % ± 9.8 % and 56.4 % ± 6.5 % under 1.0 and 0.5 mg L-1 N2H4 and NH2OH, respectively. N2H4 and NH2OH promoted activity of ammonia-oxidizing bacteria (AOB) and anaerobic ammonium oxidation bacteria (AnAOB), and inhibited activity of nitrite-oxidizing bacteria (NOB). Meanwhile, the stable operation of CANON process could be maintained without N2H4 auxiliary. While, performance assisted by NH2OH was fluctuated without NH2OH addition, suggesting that both N2H4 and NH2OH had a persistent and reversible inhibition on NOB. This study reveals new insights into influence of N2H4 and NH2OH on CANON performance.
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Affiliation(s)
- Qian-Qian Zhang
- School of Water and Environment, Chang'an University, Xi'an 710054, China; Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang'an University, Xi'an 710054, China.
| | - Ning Liu
- School of Water and Environment, Chang'an University, Xi'an 710054, China
| | - Jin-Ze Liu
- School of Water and Environment, Chang'an University, Xi'an 710054, China
| | - Yan Yu
- School of Water and Environment, Chang'an University, Xi'an 710054, China
| | - Wen-Jing Fu
- School of Water and Environment, Chang'an University, Xi'an 710054, China
| | - Jian-Qiang Zhao
- School of Water and Environment, Chang'an University, Xi'an 710054, China; Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang'an University, Xi'an 710054, China
| | - Ren-Cun Jin
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
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11
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Bi Z, Song G, Sun X. Deciphering antibiotic resistance genes and microbial community of anammox consortia under sulfadiazine and chlortetracycline stress. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 234:113343. [PMID: 35259594 DOI: 10.1016/j.ecoenv.2022.113343] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 02/18/2022] [Accepted: 02/20/2022] [Indexed: 06/14/2023]
Abstract
The responses of anammox consortia to typical antibiotics sulfadiazine (SDZ) and chlortetracycline (CTC) were evaluated on the aspects of general performance, microbial activity, diversity and abundance of antibiotic resistance genes (ARGs), and microbial host of ARGs in anammox system. Results showed the anammox consortia had a stable performance and great resistance to 10 mg/L of SDZ, while 1 mg/L of CTC induced an unrecoverable inhibitory influence on nitrogen removal performance and anammox activity without any special treatment. The absolute abundances of anammox functional genes (nirS, hzsA and hdh) were stimulated by the acclimation to SDZ stress, however, they were much lower than the initial levels under CTC stress. In anammox consortia, ARGs comprised 18 types (94 subtypes) derived from over 20 genera. Strikingly, the anammox bacteria (AnAOB) "Ca. Brocadia" occupied 46.81% of the SDZ resistance genes (sul1 and sul2) and 38.63% of CTC resistance genes (tetX, tetG and rpsJ), and thus were identified as the dominant antibiotic resistance bacteria (ARB). Therefore, harboring the corresponding ARGs by AnAOB could be the primary protective mechanism to interpret the resistance of anammox consortia to antibiotics stress. Meanwhile, co-occurring of ARGs in anammox consortia suggested the synergistic cooperation of different ARGs could be an essential strategy to alleviate the SDZ and CTC stress. The present study proposed a new interpretation of possible mechanism that cause antibiotic resistance of anammox consortia.
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Affiliation(s)
- Zhen Bi
- School of Environment Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China.
| | - Ge Song
- School of Environment Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China.
| | - Xiaoming Sun
- Department of General Surgery, Suzhou Wuzhong People's Hospital, Suzhou 215128, China.
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12
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Wang D, Huang K, He X, Zhang XX, Meng Y. Varied interspecies interactions between anammox and denitrifying bacteria enhanced nitrogen removal in a single-stage simultaneous anammox and denitrification system. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 813:152519. [PMID: 34968587 DOI: 10.1016/j.scitotenv.2021.152519] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 12/08/2021] [Accepted: 12/14/2021] [Indexed: 05/05/2023]
Abstract
The simultaneous anammox and denitrification (SAD) system has received growing interest for the enhanced nitrogen removal, while the ecological traits of microbial community including spatial distribution characteristics, assembly processes and interspecies interactions have not been fully unraveled. The present study applied metagenomics and ecological analysis methods to gain the ecological traits of microbial communities in the SAD system across different organic substrate loadings. Results showed that organic matter significantly affected the bioreactor performance, and the optimal total nitrogen removal efficiency reached 93.4 ± 0.7% under the COD concentrations of 180 ± 18.2 mg/L. Functional organisms including Candidatus Brocadia (3.9%), Denitratisoma (1.6%), Dokdonella (4.4%) and Thauera (4.6%) obviously enriched under the optimal organic loading conditions. Moreover, microbial communities were significantly governed by deterministic process under high organic concentrations, and the denitrifying organisms displayed important ecological roles in the communities. Although anammox bacteria obviously enriched at the middle of bioreactor, it possessed the highest expression activities at both bottom and middle sites. Denitrifying bacteria that enriched at the bottom sites strongly achieved nitrate reduction and provided nitrite for anammox bacteria, while these organisms trended to compete nitrite with anammox bacteria at the middle site. These findings highlight the importance of microbial ecology in the SAD systems, which may expand our understanding of the synergistic patterns between anammox and denitrifying bacteria.
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Affiliation(s)
- Depeng Wang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China; State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Kailong Huang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China; Nanjing Jiangdao Institute of Environmental Research Co., Ltd., Nanjing 210019, China
| | - Xiwei He
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Xu-Xiang Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Yabing Meng
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China.
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13
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Xu X, Liu S, Zeng M, Li H, Du T, Wu N, Sun J, Hao L. Deciphering response effect and underlying mechanism of anammox-based nitrogen removal process under exposures to different antibiotics via big data analysis. BIORESOURCE TECHNOLOGY 2022; 347:126674. [PMID: 35007738 DOI: 10.1016/j.biortech.2022.126674] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/30/2021] [Accepted: 01/01/2022] [Indexed: 06/14/2023]
Abstract
Recently, little research has been devoted to the systematic investigation regarding the effect of different antibiotics on anammox-based system and its underlying mechanism. In this study, a critical inhibition concentration to the anammox-based system was obtained: 2, 0.5 and 5 mg/L for OTC, TC and SM, respectively. However, SPM had no significant inhibition. Furthermore, Exp model and Monod model were capable to describe the inhibition period, while Gauss model was suitable for the recovery period. A universal machine learning model could accurately predict the NRR (R2 over 0.9), especially when biomass information data was introduced. As a qualitative analysis, the inhibition effect of TC and OTC was strongest. The abundance of nitrogen functional genes was negatively correlated with antibiotics, while antibiotic resistance genes showed the opposite trend. Overall, the inhibition ratios of OTC, TC, SPM and SM on anammox process were calculated to be 91%, 82%, 50% and 30%, respectively.
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Affiliation(s)
- Xinxin Xu
- College of Marine and Environmental Sciences, Tianjin University of Science & Technology, 300457 Tianjin, China
| | - Shuang Liu
- College of Marine and Environmental Sciences, Tianjin University of Science & Technology, 300457 Tianjin, China
| | - Ming Zeng
- College of Marine and Environmental Sciences, Tianjin University of Science & Technology, 300457 Tianjin, China.
| | - Hongli Li
- College of Marine and Environmental Sciences, Tianjin University of Science & Technology, 300457 Tianjin, China
| | - Tingting Du
- College of Marine and Environmental Sciences, Tianjin University of Science & Technology, 300457 Tianjin, China
| | - Nan Wu
- College of Engineering and Technology, Tianjin Agricultural University, Tianjin 300384, China
| | - Juanjuan Sun
- College of Marine and Environmental Sciences, Tianjin University of Science & Technology, 300457 Tianjin, China
| | - Linlin Hao
- College of Marine and Environmental Sciences, Tianjin University of Science & Technology, 300457 Tianjin, China
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14
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Gamoń F, Cema G, Ziembińska-Buczyńska A. The influence of antibiotics on the anammox process - a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:8074-8090. [PMID: 34845633 PMCID: PMC8776664 DOI: 10.1007/s11356-021-17733-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 11/20/2021] [Indexed: 04/15/2023]
Abstract
Anaerobic ammonium oxidation (anammox) is one of the most promising processes for the treatment of ammonium-rich wastewater. It is more effective, cheaper, and more environmentally friendly than the conventional process currently in use for nitrogen removal. Unfortunately, anammox bacteria are sensitive to various substances, including heavy metals and organic matter commonly found in the wastewater treatment plants (WWTPs). Of these deleterious substances, antibiotics are recognized to be important. For decades, the increasing consumption of antibiotics has led to the increased occurrence of antibiotics in the aquatic environment, including wastewater. One of the most important issues related to antibiotic pollution is the generation and transfer of antibiotic resistance bacteria (ARB) and antibiotic resistance genes (ARGs). Here, we will discuss the effect of short- and long-term exposure of the anammox process to antibiotic pollutants; with a special focus on the activity of the anammox bacteria, biomass properties, community structures, the presence of antibiotic resistance genes and combined effect of antibiotics with other substances commonly found in wastewater. Further, the defense mechanisms according to which bacteria adapt against antibiotic stress are speculated upon. This review aims to facilitate a better understanding of the influence of antibiotics and other co-pollutants on the anammox process and to highlight future avenues of research to target gaps in the knowledge.
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Affiliation(s)
- Filip Gamoń
- Environmental Biotechnology Department, Silesian University of Technology, Akademicka 2A, 44-100, Gliwice, Poland.
| | - Grzegorz Cema
- Environmental Biotechnology Department, Silesian University of Technology, Akademicka 2A, 44-100, Gliwice, Poland
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15
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Huang DQ, Fu JJ, Li ZY, Fan NS, Jin RC. Inhibition of wastewater pollutants on the anammox process: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 803:150009. [PMID: 34492484 DOI: 10.1016/j.scitotenv.2021.150009] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 08/24/2021] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
The anaerobic ammonium oxidation (anammox) process has been recognized as an efficient nitrogen removal technology. However, anammox bacteria are susceptible to surrounding environments and different pollutants, which limits the extensive application of the anammox process worldwide. Numerous researchers investigate the effects of various pollutants on the anammox process or bacteria, and related findings have also been reviewed with the focused on their inhibitory effects on process performance and microbial community. This review systemically summarized the recent advances in the inhibition, mechanism and recovery process of traditional and emerging pollutants on the anammox process over a decade, such as organics, metals, antibiotics, nanoparticles, etc. Generally, low-concentration pollutants exhibited a promotion on the anammox activity, while high-concentration pollutants showed inhibitory effects. The inhibitory threshold concentration of different pollutants varied. The combined effects of multipollutant also attracts more attentions, including synergistic, antagonistic and independent effects. Additionally, remaining problems and research needs are further proposed. This review provides a foundation for future research on the inhibition in anammox process, and promotes the proper operation of anammox processes treating different types of wastewaters.
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Affiliation(s)
- Dong-Qi Huang
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Jin-Jin Fu
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Zi-Yue Li
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Nian-Si Fan
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China.
| | - Ren-Cun Jin
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
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16
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Guan A, Qi W, Peng Q, Zhou J, Bai Y, Qu J. Environmental heterogeneity determines the response patterns of microbially mediated N-reduction processes to sulfamethoxazole in river sediments. JOURNAL OF HAZARDOUS MATERIALS 2022; 421:126730. [PMID: 34388921 DOI: 10.1016/j.jhazmat.2021.126730] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 07/09/2021] [Accepted: 07/21/2021] [Indexed: 05/28/2023]
Abstract
The widespread occurrence of antibiotics in aquatic ecosystems leads to potential ecological risks to organisms, in turn affecting microbially mediated processes. Here, we investigated the response of dominant N-reduction processes to the frequently detected antibiotic sulfamethoxazole (SMX) along the Chaobai River with regional environmental heterogeneity, including denitrification, anaerobic ammonium oxidation (anammox), dissimilatory nitrate reduction to ammonium (DNRA), and nitrous oxide (N2O) release. We found two divergent SMX response patterns for denitrification in contrasting scenarios of geochemical properties. In the context of low nitrate and carbon, SMX weakened denitrification with a slightly stimulation first. Whereas SMX directly inhibited denitrification when nitrate and carbon were sufficient. High SMX concentration suppressed anammox (26-72%) and DNRA activities (48-84%) via restraining the activities of anammox and DNRA bacteria. Notably, SMX increased the contribution of denitrification to N-reduction at the expense of DNRA to N-reduction, leading to a shift in nitrogen conversion towards denitrification. Additionally, SMX stimulated N2O emission (up to 91%) due to superior restraint on process of N2O reduction to N2 and an incline for N-reduction towards denitrification, thereby exacerbating greenhouse effect. Our results advance the understanding of how nitrogen cycling is affected by SMX in aquatic ecosystems with environmental heterogeneity.
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Affiliation(s)
- Aomei Guan
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Weixiao Qi
- Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China.
| | - Qiang Peng
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiemin Zhou
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yaohui Bai
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Jiuhui Qu
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
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17
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Zuo X, Suo P, Li Y, Xu Q. Diversity and distribution of antibiotic resistance genes associated with road sediments transported in urban stormwater runoff. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 292:118470. [PMID: 34748884 DOI: 10.1016/j.envpol.2021.118470] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 10/24/2021] [Accepted: 11/04/2021] [Indexed: 06/13/2023]
Abstract
Recently, increasing attention has been paid to antibiotic resistance genes (ARGs) in urban stormwater runoff. However, there were little data on the diversity and distribution of ARGs associated with road sediments transported in runoff. The investigation of ARGs diversity showed that sulfonamide resistance genes (sul2 and sul3) occupied 61.7%-82.3% of total ARGs in runoff. The analysis of ARGs distribution in particulate matter (PM) implied that both tetQ and trbC existed mainly in PM with size of 150-300 μm, but other ARGs and mobile genetic elements (MGEs) were dominant in PM with size <75 μm. The discussion of potential hosts indicated that target genes (ermF, blaOXA1/blaOXA30, ermC, qnrA, sul2, tnpA-01, intI2, tetW, intI1, sul3, trbC) had the strongest subordinate relationship with Proteobacteria at phylum level and Enterobacter at genus level. The effect evaluation of ARGs distribution suggested that 13 kinds of ARGs were positively correlated with Pr/PS and Zeta potential, resulting in the more ARGs in PM with smaller size (<75 μm).
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Affiliation(s)
- XiaoJun Zuo
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China; Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Joint Laboratory of Atmospheric Pollution Control, Nanjing, 210044, China.
| | - PengCheng Suo
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China; Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Joint Laboratory of Atmospheric Pollution Control, Nanjing, 210044, China
| | - Yang Li
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China; Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Joint Laboratory of Atmospheric Pollution Control, Nanjing, 210044, China
| | - Qiangqiang Xu
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China; Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Joint Laboratory of Atmospheric Pollution Control, Nanjing, 210044, China
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18
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Madeira CL, de Araújo JC. Inhibition of anammox activity by municipal and industrial wastewater pollutants: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 799:149449. [PMID: 34371406 DOI: 10.1016/j.scitotenv.2021.149449] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/29/2021] [Accepted: 07/30/2021] [Indexed: 06/13/2023]
Abstract
The use of the anammox process for nitrogen removal has gained popularity across the world due to its low energy consumption and waste generation. Anammox reactors have been used to treat ammonium-rich effluents such as chemical, pharmaceutical, semiconductor, livestock, and coke oven wastewater. Recently, full-scale installations have been implemented for municipal wastewater treatment. The efficiency of biological processes is susceptible to inhibitory effects of pollutants present in wastewater. Considering the increasing number of emerging contaminants detected in wastewater, the impacts of the different types of pollutants on anammox bacteria must be understood. This review presents a compilation of the studies assessing the inhibitory effects of different wastewater pollutants towards anammox activity. The pollutants were classified as antibiotics, aromatics, azoles, surfactants, microplastics, organic solvents, humic substances, biodegradable organic matter, or metals and metallic nanoparticles. The interactions between the pollutants and anammox bacteria have been described, as well as the interactions between different pollutants leading to synergistic effects. We also reviewed the effects of pollutants on distinct species of anammox bacteria, and the main toxicity mechanisms leading to irreversible loss of anammox activity have been identified. Finally, we provided an analysis of strategies to overcome the inhibitory effects of wastewater pollutants on the nitrogen removal performance. We believe this review will contribute with essential information to assist the operation and design of anammox reactors treating different types of wastewaters.
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Affiliation(s)
- Camila Leite Madeira
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Av. Antonio Carlos 6627, 31270-901 Belo Horizonte, MG, Brazil.
| | - Juliana Calábria de Araújo
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Av. Antonio Carlos 6627, 31270-901 Belo Horizonte, MG, Brazil.
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19
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Xu X, Du T, Guo D, Jiang X, Zeng M, Wu N, Wang C, Zhang Z. Deciphering and predicting anammox-based nitrogen removal process under oxytetracycline stress via kinetic modeling and machine learning based on big data analysis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 796:148980. [PMID: 34274673 DOI: 10.1016/j.scitotenv.2021.148980] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 07/06/2021] [Accepted: 07/07/2021] [Indexed: 06/13/2023]
Abstract
Anaerobic ammonium oxidation (anammox) is an advanced nitrogen removal process that is widely used in the nitrogen removal of various antibiotic containing wastewaters due to its high efficiency and energy saving characteristics. However, as a widely used antibiotic, the inhibitory effect of oxytetracycline (OTC) on anammox is unclear. In this study, the effect of OTC on the anammox-based nitrogen removal process was revealed by kinetic model and machine learning models. Statistical analysis showed that anammox started to be inhibited when the OTC concentration reached 2 mg/L. The inhibition and recovery periods were simulated under OTC stress. During the inhibition period, the R2 fitted by Exp model was higher, and the simulated maximum nitrogen removal rate (NRR) was between 0.47 and 17.05 kg/(m3·d). During the recovery period, both Boltzmann and Gauss models fit well. In addition, the machine learning model of the artificial neural network predicted the NRR more accurately, indicating that the importance of environmental factors was lower than the effluent parameters. Spearman correlation analysis showed that the NRR was negatively correlated with OTC under both short-term and long-term OTC stress. Furthermore, the hydraulic retention time and water quality parameters played an important role in the short-term and long-term experiment, respectively. Finally, redundancy analysis demonstrated that the abundance of nitrogen functional genes, such as hydrazine dehydrogenase, nitrite/nitric oxide oxidoreductase and hydrazine synthase, was negatively correlated with the amount of OTC, while antibiotic resistance genes showed the opposite trend.
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Affiliation(s)
- Xinxin Xu
- College of Marine and Environmental Sciences, Tianjin University of Science & Technology, 300457 Tianjin, China
| | - Tingting Du
- College of Marine and Environmental Sciences, Tianjin University of Science & Technology, 300457 Tianjin, China
| | - Du Guo
- College of Marine and Environmental Sciences, Tianjin University of Science & Technology, 300457 Tianjin, China
| | - Xinye Jiang
- College of Marine and Environmental Sciences, Tianjin University of Science & Technology, 300457 Tianjin, China
| | - Ming Zeng
- College of Marine and Environmental Sciences, Tianjin University of Science & Technology, 300457 Tianjin, China.
| | - Nan Wu
- College of Engineering and Technology, Tianjin Agricultural University, Tianjin 300384, China
| | - Chang Wang
- College of Marine and Environmental Sciences, Tianjin University of Science & Technology, 300457 Tianjin, China
| | - Zongpeng Zhang
- Fukai Diwo (Tianjin) Environmental Protection Technology Co., Ltd, 300457 Tianjin, China
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20
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Tian M, Wang H, Li X, Li D, Zhou Z, Li B. Efficiency of hybrid systems enhanced with different sludge ratios in improving resistance to short-term low temperatures. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 297:113398. [PMID: 34346393 DOI: 10.1016/j.jenvman.2021.113398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 06/23/2021] [Accepted: 07/24/2021] [Indexed: 06/13/2023]
Abstract
Complete autotrophic nitrogen removal over nitrite (CANON) is used in wastewater treatment. However, the performance of the CANON system significantly decreases at low temperatures; thus, a new strategy to improve the resistance of the CANON system is required. To investigate the impact of sludge ratio control (high-granule, equivalent, and high-floc systems) on the resistance of CANON to low temperatures, and their recovery after restoring to normal temperature, the nitrogen removal performance of hybrid systems with different ratios was evaluated. The equivalent system had the lowest nitrite accumulation rate and highest nitrogen removal rate. Anaerobic ammonia oxidation was the rate-limiting step of each system, and hzs was the rate-limiting gene. The higher anaerobic ammonium oxidizing bacteria (AAOB) abundance and hzs expression levels resulted in an equivalent system with better resistance and recovery to short-term low temperatures at the gene level.
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Affiliation(s)
- Mengyuan Tian
- School of Resource and Environmental Engineering, Wuhan University of Technology, Wuhan, Hubei, 430070, China
| | - Heng Wang
- School of Resource and Environmental Engineering, Wuhan University of Technology, Wuhan, Hubei, 430070, China
| | - Xiang Li
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, Jiangsu, 215009, China
| | - Dongqing Li
- Department of Microbiology, Wuhan University School of Basic Medical of Science, Wuhan, Hubei, 430000, China
| | - Zhi Zhou
- Lyles School of Civil Engineering and Division of Environmental and Ecological Engineering, Purdue University, West Lafayette, IN, 47907, United States
| | - Bolin Li
- School of Resource and Environmental Engineering, Wuhan University of Technology, Wuhan, Hubei, 430070, China.
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21
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Fan NS, Fu JJ, Huang DQ, Ma YL, Lu ZY, Jin RC, Zheng P. Resistance genes and extracellular proteins relieve antibiotic stress on the anammox process. WATER RESEARCH 2021; 202:117453. [PMID: 34320444 DOI: 10.1016/j.watres.2021.117453] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 07/12/2021] [Accepted: 07/17/2021] [Indexed: 06/13/2023]
Abstract
The anaerobic ammonium oxidation (anammox) process is regarded as a promising approach to treat antibiotic-containing wastewater. Therefore, it is urgent to elucidate the effects of various antibiotics on the anammox process. Moreover, the mechanism of extracellular polymeric substance (EPS) as protective barriers to relieve antibiotic stress remain unclear. Therefore, the single and combined effects of erythromycin (ETC) and sulfamethoxazole (SMZ), and interactions between EPS and antibiotics were investigated in this study. Based on a 228-day continuous flow experiment, high concentrations of ETC and SMZ had significant inhibitory effects on the nitrogen removal performance of the anammox process, with the abundances of corresponding antibiotic resistance genes (ARGs) increasing. In addition, the combined inhibitory effect of the two antibiotics on the anammox process was more significant and longer-lasting than that of the single. However, the anammox process was able to quickly recover from deterioration. The tolerance of anammox granules to the stress of low-concentration antibiotics was probably attributed to the increase in ARGs and secretion of EPS. Molecular docking simulation results showed that proteins in EPS could directly bind with SMZ and ETC at the sites of GLU-307, HYS-191, ASP-318 and THR-32, respectively. These findings improved our understanding of various antibiotic effects on the anammox process and the interaction mechanism between antibiotics and proteins in EPS.
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Affiliation(s)
- Nian-Si Fan
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Jin-Jin Fu
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Dong-Qi Huang
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Yuan-Long Ma
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Zheng-Yang Lu
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Ren-Cun Jin
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China.
| | - Ping Zheng
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
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22
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Wang Y, Ji XM, Jin RC. How anammox responds to the emerging contaminants: Status and mechanisms. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 293:112906. [PMID: 34087646 DOI: 10.1016/j.jenvman.2021.112906] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 05/11/2021] [Accepted: 05/26/2021] [Indexed: 06/12/2023]
Abstract
Numerous researches have been carried out to study the effects of emerging contaminants in wastewater, such as antibiotics, nanomaterials, heavy metals, and microplastics, on the anammox process. However, they are fragmented and difficult to provide a comprehensive understanding of their effects on reactor performance and the metabolic mechanisms in anammox bacteria. Therefore, this paper overviews the effects on anammox processes by the introduced emerging contaminants in the past years to fulfill such knowledge gaps that affect our perception of the inhibitory mechanisms and limit the optimization of the anammox process. In detail, their effects on anammox processes from the aspects of reactor performance, microbial community, antibiotic resistance genes (ARGs), and functional genes related to anammox and nitrogen transformation in anammox consortia are summarized. Furthermore, the metabolic mechanisms causing the cell death of anammox bacteria, such as induction of reactive oxygen species, limitation of substrates diffusion, and membrane binding are proposed. By offering this review, the remaining research gaps are identified, and the potential metabolic mechanisms in anammox consortia are highlighted.
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Affiliation(s)
- Ye Wang
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 311121, China
| | - Xiao-Ming Ji
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 311121, China.
| | - Ren-Cun Jin
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 311121, China.
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23
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Zhang QQ, Qian H, Li PY, Zhao JQ, Sun YQ, Jin RC. Insight into the evolution of microbial community and antibiotic resistance genes in anammox process induced by copper after recovery from oxytetracycline stress. BIORESOURCE TECHNOLOGY 2021; 330:124945. [PMID: 33735733 DOI: 10.1016/j.biortech.2021.124945] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 02/28/2021] [Accepted: 03/02/2021] [Indexed: 06/12/2023]
Abstract
The influence of copper ion (Cu2+) on anaerobic ammonium oxidation (anammox) performance and microbial community structures after oxytetracycline (OTC) stress recovery were assessed. Experimental results demonstrated that anammox performance were stressed by 1.0 mg L-1 Cu2+ and inhibitions were reversible with total nitrogen removal rate higher than 3.08 ± 0.2 kg N m-3 d-1. The residual OTC in the anammox sludge could combine with Cu2+ introduced and thereby retarded inhibition on performance in the presence of 2.0 mg L-1 Cu2+. Moreover, the positive relation of dominant bacterium Ca. Anammoxoglobus with the abundance of functional genes and parts of antibiotic resistance genes were observed, suggesting that regain of performance was the results of the gradual domestication of latent resistant species after inhibition. This investigation reveals new insights into resistance of anammox performance for Cu2+ and OTC.
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Affiliation(s)
- Qian-Qian Zhang
- School of Water and Environment, Chang'an University, Xi'an 710054, China; Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang'an University, Xi'an 710054, China
| | - Hui Qian
- School of Water and Environment, Chang'an University, Xi'an 710054, China; Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang'an University, Xi'an 710054, China
| | - Pei-Yue Li
- School of Water and Environment, Chang'an University, Xi'an 710054, China; Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang'an University, Xi'an 710054, China
| | - Jian-Qiang Zhao
- School of Water and Environment, Chang'an University, Xi'an 710054, China; Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang'an University, Xi'an 710054, China
| | - Ya-Qiao Sun
- School of Water and Environment, Chang'an University, Xi'an 710054, China; Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang'an University, Xi'an 710054, China
| | - Ren-Cun Jin
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China.
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24
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Lu ZY, Fu JJ, Ma YL, Jin RC, Fan NS. Response of anammox granules to the simultaneous exposure to macrolide and aminoglycoside antibiotics: Linking performance to mechanism. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 286:112267. [PMID: 33667820 DOI: 10.1016/j.jenvman.2021.112267] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/11/2021] [Accepted: 02/22/2021] [Indexed: 06/12/2023]
Abstract
Antibiotic pollution is becoming increasingly severe due to its extensive use. The potential application of the anaerobic ammonium oxidation (anammox) process in the treatment of wastewater containing antibiotics has attracted much attention. As common antibiotics, spiramycin (SPM) and streptomycin (STM) are widely used to treat human and animal diseases. However, their combined effects on the anammox process remain unknown. Therefore, this study systematically evaluated the response of the anammox process to both antibiotics. The half maximal inhibitory concentrations of SPM and STM were determined. The continuous-flow anammox system could adapt to SPM and STM at low concentrations, while antibiotics at high concentrations exhibited inhibitory effects. When the concentrations reached 5 mg L-1 SPM and 50 mg L-1 STM, the nitrogen removal efficiency dramatically decreased and then rapidly recovered within 8 days. Correspondingly, the abundances of dominant bacteria and genes also changed with antibiotic concentrations. In general, the anammox process showed a stable performance and a high resistance to SPM and STM, suggesting that acclimatization by elevating the concentrations was beneficial for the anammox process to obtain resistance to different antibiotics with high concentrations. This study provides guidance for the stable operation of anammox-based biological treatment of antibiotics containing wastewater.
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Affiliation(s)
- Zheng-Yang Lu
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 311121, China
| | - Jin-Jin Fu
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 311121, China
| | - Yuan-Long Ma
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 311121, China
| | - Ren-Cun Jin
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 311121, China
| | - Nian-Si Fan
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 311121, China.
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25
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Zhang QQ, Ji XM, Tian GM, Jin RC. Evolution of microbial community and antibiotic resistance genes in anammox process stressed by oxytetracycline and copper. BIORESOURCE TECHNOLOGY 2021; 319:124106. [PMID: 32949830 DOI: 10.1016/j.biortech.2020.124106] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 08/31/2020] [Accepted: 09/03/2020] [Indexed: 06/11/2023]
Abstract
The individual and combined impacts of copper ion (Cu2+) and oxytetracycline (OTC) on anaerobic ammonium oxidation (anammox) performance and its self-recovery process were examined. Experimental results showed that the anammox performance and activity of anammox bacteria were inhibited by 1.0 mg L-1 OTC, Cu2+ and OTC + Cu2+, and both single and combined inhibitions were reversible. The abundance of functional genes and parts of antibiotic resistance genes (ARGs) were positively related to the dominant bacterium Ca. Kuenenia, implying that the recovery of the performance was associated with the progressive induction of potentially resistant species after inhibition. The above outcomes illustrated that anammox bacteria were stressed by metals and antibiotics, but they still could remove nitrogen at a rate higher than 20.6 ± 0.8 kg N m-3 d-1, providing guidance for engineering applications of anammox processes.
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Affiliation(s)
- Qian-Qian Zhang
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China; Department of Environmental Engineering, School of Water and Environment, Chang'an University, Xi'an 710061, China; Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China
| | - Xiao-Ming Ji
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Guang-Ming Tian
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China
| | - Ren-Cun Jin
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China.
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26
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Ozumchelouei EJ, Hamidian AH, Zhang Y, Yang M. A critical review on the effects of antibiotics on anammox process in wastewater. REV CHEM ENG 2020. [DOI: 10.1515/revce-2020-0024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Abstract
Anaerobic ammonium oxidation (anammox) has recently become of significant interest due to its capability for cost-effective nitrogen elimination from wastewater. However, anaerobic ammonia-oxidizing bacteria (AnAOB) are sensitive to environmental changes and toxic substances. In particular, the presence of antibiotics in wastewater, which is considered unfavorable to the anammox process, has become a growing concern. Therefore, it is necessary to evaluate the effects of these inhibitors to acquire information on the applicability of the anammox process. Hence, this review summarizes our knowledge of the effects of commonly detected antibiotics in water matrices, including fluoroquinolone, macrolide, β-lactam, chloramphenicol, tetracycline, sulfonamide, glycopeptide, and aminoglycoside, on the anammox process. According to the literature, the presence of antibiotics in wastewater could partially or completely inhibit anammox reactions, in which antibiotics targeting protein synthesis or DNA replication (excluding aminoglycoside) were the most effective against the AnAOB strains.
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Affiliation(s)
- Elnaz Jafari Ozumchelouei
- School of Chemical Engineering , University College of Engineering, University of Tehran , Tehran , Iran
| | - Amir Hossein Hamidian
- Department of Environmental Science and Engineering, Faculty of Natural Resources , University of Tehran , Karaj , Iran
| | - Yu Zhang
- State Key Laboratory of Environmental Aquatic Chemistry , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, P.R. China
- University of Chinese Academy of Sciences , Beijing 100049, P.R. China
| | - Min Yang
- Department of Environmental Science and Engineering, Faculty of Natural Resources , University of Tehran , Karaj , Iran
- State Key Laboratory of Environmental Aquatic Chemistry , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, P.R. China
- University of Chinese Academy of Sciences , Beijing 100049, P.R. China
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27
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Pekyavas G, Dereli RK, Yangin-Gomec C. Comparative assessment of modeling and experimental data of ammonia removal from pre-digested chicken manure. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2020; 55:1333-1338. [PMID: 32684079 DOI: 10.1080/10934529.2020.1794206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 06/25/2020] [Accepted: 06/25/2020] [Indexed: 06/11/2023]
Abstract
The aim of this study was to interpret the development of Anammox activity by a mathematical model in an UASB reactor -originally inoculated with methanogenic granules- at which Anammox progress has been also experimentally observed while treating chicken manure digestate. Since ammonium is derived from anaerobic degradation of nitrogenous compounds in chicken manure similar to any other nitrogen-rich organic wastes; the reactor was operated intentionally at favorable conditions [i.e.; with external nitrite source for NH4 +:NO2 -≅1.0] in order to make Anammox process to prevail as operation continued. Results indicated significant ammonia removals (60% on average) although influent concentration was gradually increased up to 200 mg L-1. A modeling exercise has been undertaken to investigate the performance of the laboratory scale UASB reactor. In this scope, the experimental results were modeled by using Mantis2 model within GPS-X 6.5 simulation software that included several built in libraries. Accordingly, effluent chemical oxygen demand (COD) and total ammonia nitrogen (TAN) concentrations could be predicted with reasonably good accuracy demonstrating successful calibration. The regression coefficient (R2 ) and mean relative absolute error (MRAE) parameters were found as 0.66 and 16% and 0.70 and 19%, respectively.
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Affiliation(s)
- Goksen Pekyavas
- Department of Environmental Engineering, Istanbul Technical University, Maslak, Istanbul, Turkey
| | - R Kaan Dereli
- Department of Environmental Engineering, Istanbul Technical University, Maslak, Istanbul, Turkey
- School of Chemical and Bioprocess Engineering, University College Dublin, Belfield, Dublin 4, Ireland
| | - Cigdem Yangin-Gomec
- Department of Environmental Engineering, Istanbul Technical University, Maslak, Istanbul, Turkey
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28
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Cheng YF, Li GF, Ma WJ, Xue Y, Liu Q, Zhang ZZ, Jin RC. Resistance of anammox granular sludge to copper nanoparticles and oxytetracycline and restoration of performance. BIORESOURCE TECHNOLOGY 2020; 307:123264. [PMID: 32244076 DOI: 10.1016/j.biortech.2020.123264] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 03/18/2020] [Accepted: 03/20/2020] [Indexed: 06/11/2023]
Abstract
Nanoparticles and antibiotics, the two most frequently detected emerging pollutants from different wastewater sources, are eventually discharged into wastewater treatment plants. In this study, the widely used materials CuNPs and oxytetracycline (OTC) were selected as target pollutants to investigate their joint effects on anaerobic ammonium oxidation (anammox). The results indicated that the environmental concentration slightly inhibited the performance of the reactors, while the performance rapidly deteriorated within a week under high-level combined shocks (5.0 mg L-1 CuNPs and 2.0 mg L-1 OTC). After the second shock (2.5 mg L-1 CuNPs and 2.0 mg L-1 OTC), the resistance of anammox bacteria was enhanced, with an elevated relative abundance of Candidatus Kuenenia and absolute abundance of hzsA, nirS, and hdh. Moreover, the extracellular polymeric substance (EPS) content and specific anammox activity (SAA) showed corresponding changes. Improved sludge resistance was observed with increasing CuNP and OTC doses, which accelerated the recovery of performance.
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Affiliation(s)
- Ya-Fei Cheng
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Gui-Feng Li
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Wen-Jie Ma
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Yuan Xue
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Qi Liu
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Zheng-Zhe Zhang
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Ren-Cun Jin
- Laboratory of Water Pollution Remediation, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China.
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29
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Response and Adaptation of Microbial Community in a CANON Reactor Exposed to an Extreme Alkaline Shock. ARCHAEA-AN INTERNATIONAL MICROBIOLOGICAL JOURNAL 2020; 2020:8888615. [PMID: 32694931 PMCID: PMC7351368 DOI: 10.1155/2020/8888615] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/27/2020] [Accepted: 06/04/2020] [Indexed: 01/06/2023]
Abstract
Responses of a microbial community in the completely autotrophic nitrogen removal over nitrite (CANON) process, which was shocked by a pH of 11.0 for 12 h, were investigated. During the recovery phase, the performance, anaerobic ammonia oxidation (anammox) activity, microbial community, and correlation of bacteria as well as the influencing factors were evaluated synchronously. The performance of the CANON process deteriorated rapidly with a nitrogen removal rate (NRR) of 0.13 kg·m-3·d-1, and Firmicutes, spore-forming bacteria, were the dominant phyla after alkaline shock. However, it could self-restore within 107 days after undergoing four stages, at which Planctomycetes became dominant with a relative abundance of 64.62%. Network analysis showed that anammox bacteria (Candidatus Jettenia, Kuenenia, and Brocadia) were positively related to some functional bacteria such as Nitrosomonas, SM1A02, and Calorithrix. Canonical correspondence analysis presented a strong correlation between the microbial community and influencing factors during the recovery phase. With the increase of nitrogen loading rate, the decrease of free nitrous acid and the synergistic effects, heme c content, specific anammox activity (SAA), NRR, and the abundance of dominant genus increased correspondingly. The increase of heme c content regulates the quorum sensing system, promotes the secretion of extracellular polymeric substances, and further improves SAA, NRR, and the relative abundance of the dominant genus. This study highlights some implications for the recovery of the CANON reactor after being exposed to an alkaline shock.
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Zhang QQ, Bai YH, Wu J, Xu LZJ, Zhu WQ, Tian GM, Zheng P, Xu XY, Jin RC. Microbial community evolution and fate of antibiotic resistance genes in anammox process under oxytetracycline and sulfamethoxazole stresses. BIORESOURCE TECHNOLOGY 2019; 293:122096. [PMID: 31493731 DOI: 10.1016/j.biortech.2019.122096] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 08/27/2019] [Accepted: 08/29/2019] [Indexed: 06/10/2023]
Abstract
The microbial community characteristics, functional and antibiotic resistance genes (ARGs), anammox performance under individual and combined oxytetracycline (OTC) and sulfamethoxazole (SMX) were tested under environmentally relevant levels. The results showed that anammox performance was inhibited when the OTC or SMX concentration increased from 0.5 to 1.0 mg L-1. The absolute abundance of tetX in OTC (3.03 × 106 copies mg-1), SMX (2.80 × 106 copies mg-1) and OTC + SMX (2.03 × 106 copies mg-1) was the highest and one more order of magnitude higher than that of tetG, tetM, intI1, or sul2. The anammox performance in the presence of OTC or SMX was lower than that sum of their independent effects. The enrichment of sludge resistomes with prolonged exposure time and increasing OTC and SMX doses might be due to succession of bacterial hosts and potential elevation of ARGs by horizontal transfer.
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Affiliation(s)
- Qian-Qian Zhang
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China; Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China
| | - Yu-Hui Bai
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Jing Wu
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Lian-Zeng-Ji Xu
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Wei-Qin Zhu
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Guang-Ming Tian
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China
| | - Ping Zheng
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China
| | - Xiang-Yang Xu
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China
| | - Ren-Cun Jin
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China.
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