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Wu L, Wu Q, Xu J, Rong L, Yu X, Cai C, Huang X, Zou X. Responses of antibiotic resistance genes in the enhanced biological phosphorus removal system under various antibiotics: Mechanisms and implications. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:167247. [PMID: 37739079 DOI: 10.1016/j.scitotenv.2023.167247] [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: 06/30/2023] [Revised: 09/18/2023] [Accepted: 09/19/2023] [Indexed: 09/24/2023]
Abstract
The effects of antibiotics on the proliferation of antibiotic resistant genes (ARGs) in WWTPs have drawn great attention in recent years. The effects of antibiotics on ARGs in the enhanced biological phosphorus removal (EBPR) system and its mechanisms, however, are still not well understood. In this study, EBPR systems were constructed using activated sludge to investigate the effects of ten commonly detected antibiotics in the environment on the proliferation of ARGs and the mechanisms involved. The results showed that the total abundance of ARGs increased to varying degrees with the addition of different antibiotics (0.05 mmol/L), and the top 30 ARGs increased by 271.1 % to 370.0 %. Mobile genetic elements (MGEs), functional modules, and the bacteria community were consistently related to the changes in ARGs. Refractory antibiotics, in particular, have a stronger promoting effect on transduction in the EBPR system. The insertion sequence common region (ISCR) and transposon (Tnp) were identified as crucial factors in the proliferation of ARGs. Moreover, the risk of polyphosphate accumulating organisms (PAOs) carrying ARGs in the presence of antibiotics should not be ignored. Our findings emphasize the potential efficacy of employing strategies that target the reduction of MGEs, regulation of cellular communication, and management of microbial communities to effectively mitigate the risks associated with ARGs.
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Affiliation(s)
- Ligui Wu
- College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; School of Life Science, Jinggangshan University, Ji'an 343009, China
| | - Qiaofeng Wu
- College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Fuzhou Urban and Rural Construction Group Co. Ltd, Fuzhou 350007, China
| | - Jingcheng Xu
- College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Lingling Rong
- School of Life Science, Jinggangshan University, Ji'an 343009, China
| | - Xiaoli Yu
- School of Life Science, Jinggangshan University, Ji'an 343009, China
| | - Chen Cai
- College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Xiangfeng Huang
- College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
| | - Xiaoming Zou
- School of Life Science, Jinggangshan University, Ji'an 343009, China.
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Zhao B, Yang Y, Zhao C, Zhang C, Zhang Z, Wang L, Wang S, Wang J. Exploration of the metabolic flexibility of glycogen accumulating organisms through metatranscriptome analysis and metabolic characterization. J Environ Sci (China) 2023; 126:234-248. [PMID: 36503752 DOI: 10.1016/j.jes.2022.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 05/06/2022] [Accepted: 05/06/2022] [Indexed: 06/17/2023]
Abstract
Glycogen accumulating organisms (GAOs) are closely related to the deterioration of enhanced biological phosphorus removal systems. However, the metabolic mechanisms that drive GAOs remain unclear. Here, the two-thirds supernatant of a reactor were decanted following the anaerobic period to enrich GAOs. Long-term monitoring demonstrated that the system was stable and exhibited typical characteristics of GAOs metabolism. Acetate was completely consumed after 60 min of the anaerobic phase. The level of glycogen decreased from 0.20 to 0.14 g/gSS during the anaerobic phase, whereas the level of glycogen significantly increased to 0.21g/gSS at the end of the aerobic period. Moreover, there was almost no phosphate release and absorption in the complete periods, thus confirming the successful construction of a GAOs enrichment system. Microbial community analysis demonstrated that Ca. Contendobacter was among the core functional genera and showed the highest activity among all of the communities. Furthermore, our study is the first to identify the involvement of the ethyl-malonyl-CoA pathway in the synthesis of polyhydroxyvalerate via croR, ccr, ecm, mcd, mch and mcl genes. The Embden-Meyerhof-Parnas (EMP) pathway was preferentially used via glgP. Furthermore, the glyoxylate cycle was the main source of ATP under anaerobic conditions, whereas the tricarboxylic acid cycle provided ATP under aerobic conditions. aceA and mdh appeared to be major modulators of the glyoxylate pathway for controlling energy flow. Collectively, our findings not only revealed the crucial metabolic mechanisms in a GAOs enrichment system but also provided insights into the potential application of Ca. Contendobacter for wastewater treatment.
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Affiliation(s)
- Bin Zhao
- School of Environmental Science Engineering, Tiangong University, Tianjin 300387, China
| | - Yanping Yang
- School of Environmental Science Engineering, Tiangong University, Tianjin 300387, China; Department of Hygienic Toxicology and Environmental Hygiene, Tianjin Institute of Environmental and Operational Medicine, Tianjin 300201, China
| | - Chen Zhao
- Department of Hygienic Toxicology and Environmental Hygiene, Tianjin Institute of Environmental and Operational Medicine, Tianjin 300201, China
| | - Chunchun Zhang
- School of Environmental Science Engineering, Tiangong University, Tianjin 300387, China; Department of Hygienic Toxicology and Environmental Hygiene, Tianjin Institute of Environmental and Operational Medicine, Tianjin 300201, China
| | - Zhaohui Zhang
- School of Environmental Science Engineering, Tiangong University, Tianjin 300387, China
| | - Liang Wang
- School of Environmental Science Engineering, Tiangong University, Tianjin 300387, China
| | - Shang Wang
- Department of Hygienic Toxicology and Environmental Hygiene, Tianjin Institute of Environmental and Operational Medicine, Tianjin 300201, China.
| | - Jingfeng Wang
- Department of Hygienic Toxicology and Environmental Hygiene, Tianjin Institute of Environmental and Operational Medicine, Tianjin 300201, China.
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Fu C, Li Y, Zuo Y, Li B, Liu C, Liu D, Fu Y, Yin Y. Fabrication of lanthanum/chitosan co-modified bentonite and phosphorus removal mechanism from low-concentration landscape water. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2022; 86:1017-1033. [PMID: 36358043 DOI: 10.2166/wst.2022.251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
It is essential to solve the problem of phosphorus pollution in urban landscape water and reduce the degree of eutrophication. In this paper, lanthanum-modified bentonite (La-B) was prepared by high-temperature calcination and liquid-phase precipitation. Then La-B was modified with chitosan to prepare a low-cost environment-friendly functional material: lanthanum/chitosan co-modified bentonite (La-BC). It can reach the adsorption equilibrium within 30 min, and the maximum adsorption capacity is 15.5 mg/g (initial phosphate concentration 50 mg/L); when the target concentration is 2 mg/L, the removal rate can reach 98.5%. La-BC has a stronger anti-interference ability to common coexisting anions SO42-, HCO3-, NO3- and Cl- in the urban landscape water body. La-BC has excellent performance in weakly acidic to neutral water, and its pH applicable range has been improved, making it possible to apply in practical water. The fitting results show that the adsorption behavior conforms to the pseudo-second-order kinetic model and the Freundlich model. After 5 regenerations, the removal efficiency remained around 80%. In the actual water test results, the phosphate concentration can be controlled below 0.1 mg/L and the removal rate is above 75%. Due to its low cost and reusability, it has great potential in the practical application of phosphate removal from landscape water.
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Affiliation(s)
- Chengbin Fu
- School of Resources and Environment Engineering, Wuhan University of Technology, Wuhan, Hubei 430070, China E-mail:
| | - Ye Li
- School of Resources and Environment Engineering, Wuhan University of Technology, Wuhan, Hubei 430070, China E-mail:
| | - Yangyang Zuo
- School of Resources and Environment Engineering, Wuhan University of Technology, Wuhan, Hubei 430070, China E-mail:
| | - Bolin Li
- School of Resources and Environment Engineering, Wuhan University of Technology, Wuhan, Hubei 430070, China E-mail:
| | - Chang Liu
- School of Resources and Environment Engineering, Wuhan University of Technology, Wuhan, Hubei 430070, China E-mail:
| | - Dongxue Liu
- School of Resources and Environment Engineering, Wuhan University of Technology, Wuhan, Hubei 430070, China E-mail:
| | - Yan Fu
- School of Resources and Environment Engineering, Wuhan University of Technology, Wuhan, Hubei 430070, China E-mail:
| | - Yixin Yin
- School of Resources and Environment Engineering, Wuhan University of Technology, Wuhan, Hubei 430070, China E-mail:
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Yuan Q, Sui M, Qin C, Zhang H, Sun Y, Luo S, Zhao J. Migration, Transformation and Removal of Macrolide Antibiotics in The Environment: A Review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:26045-26062. [PMID: 35067882 DOI: 10.1007/s11356-021-18251-2] [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: 09/08/2021] [Accepted: 12/16/2021] [Indexed: 06/14/2023]
Abstract
Macrolide antibiotics (MAs), as a typical emerging pollutant, are widely detected in environmental media. When entering the environment, MAs can interfere with the growth, development and reproduction of organisms, which has attracted extensive attention. However, there are few reviews on the occurrence characteristics, migration and transformation law, ecotoxicity and related removal technologies of MAs in the environment. In this work, combined with the existing relevant research, the migration and transformation law and ecotoxicity characteristics of MAs in the environment are summarized, and the removal mechanism of MAs is clarified. Currently, most studies on MAs are based on laboratory simulation experiments, and there are few studies on the migration and transformation mechanism between multiphase states. In addition, the cost of MAs removal technology is not satisfactory. Therefore, the following suggestions are put forward for the future research direction. The migration and transformation process of MAs between multiphase states (such as soil-water-sediment) should be focused on. Apart from exploring the new treatment technology of MAs, the upgrading and coupling of existing MAs removal technologies to meet emission standards and reduce costs should also be concerned. This review provides some theoretical basis and data support for understanding the occurrence characteristics, ecotoxicity and removal mechanism of MAs.
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Affiliation(s)
- Qingjiang Yuan
- Qingdao Solid Waste Pollution Control and Resource Engineering Research Center, School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266520, China
| | - Meiping Sui
- Qingdao Solid Waste Pollution Control and Resource Engineering Research Center, School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266520, China
| | - Chengzhi Qin
- Qingdao Solid Waste Pollution Control and Resource Engineering Research Center, School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266520, China
| | - Hongying Zhang
- Qingdao Solid Waste Pollution Control and Resource Engineering Research Center, School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266520, China
| | - Yingjie Sun
- Qingdao Solid Waste Pollution Control and Resource Engineering Research Center, School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266520, China
| | - Siyi Luo
- Qingdao Solid Waste Pollution Control and Resource Engineering Research Center, School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266520, China
| | - Jianwei Zhao
- Qingdao Solid Waste Pollution Control and Resource Engineering Research Center, School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266520, China.
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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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Zhao J, Yuan Q, Sun Y, Zhang J, Zhang D, Bian R. Effect of fluoxetine on enhanced biological phosphorus removal using a sequencing batch reactor. BIORESOURCE TECHNOLOGY 2021; 320:124396. [PMID: 33212384 DOI: 10.1016/j.biortech.2020.124396] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/31/2020] [Accepted: 11/06/2020] [Indexed: 06/11/2023]
Abstract
In this work, the potential impact of emerging pollutant Fluoxetine (FLX) on enhanced biological phosphorus removal (EBPR) was systematically investigated using the sequencing batch reactor. The experimental results showed that even 200 μg/L FLX had no significant effect on EBPR during the short-term exposure. However, in the long-term exposure test, high dosage of FLX inhibited EBPR. 200 μg/L FLX induced biological phosphorus removal efficiency dropped to 71.3 ± 2.1%, significantly lower than that of the blank. The mechanism investigation showed that high concentration of FLX reduced anaerobic phosphorus release and oxic phosphorus absorption, and the consumption of organic matter during the anaerobic period. In addition, FLX decreased the synthesis of intracellular polymer polyhydroxyalkanoates (PHA), but promoted the metabolism of glycogen and polyhydroxyvalerate. FLX reduced the activity of key enzymes in EBPR and the relative abundance of Accumulibacter, but improved the relative abundance of Candidatus Competibacter.
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Affiliation(s)
- Jianwei Zhao
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, China; Qingdao Solid Waste Pollution Control and Resource Engineering Research Center, Qingdao 266033, China.
| | - Qingjiang Yuan
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, China; Qingdao Solid Waste Pollution Control and Resource Engineering Research Center, Qingdao 266033, China
| | - Yingjie Sun
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, China; Qingdao Solid Waste Pollution Control and Resource Engineering Research Center, Qingdao 266033, China
| | - Jing Zhang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, China; Qingdao Solid Waste Pollution Control and Resource Engineering Research Center, Qingdao 266033, China
| | - Dalei Zhang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, China; Qingdao Solid Waste Pollution Control and Resource Engineering Research Center, Qingdao 266033, China
| | - Rongxing Bian
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, China; Qingdao Solid Waste Pollution Control and Resource Engineering Research Center, Qingdao 266033, China
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Luo Y, Feng L, Jia R, Yang G, Yang Q, Mu J. Variation in microbial populations and antibiotic resistance genes in mariculture sediments in the present of the seaweed Ulva fasciata and under selective pressure of oxytetracycline. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 204:111114. [PMID: 32798752 DOI: 10.1016/j.ecoenv.2020.111114] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 07/29/2020] [Accepted: 07/31/2020] [Indexed: 06/11/2023]
Abstract
The widely distributed seaweed Ulva fasciata has nutrient absorption abilities and can be used in the bioremediation of polluted maricultural environments. This study explored microbial community and antibiotic resistance gene (ARG) variation in mariculture sediments in response to different trace levels (10, 100, and 500 μg L-1) of oxytetracycline (OTC) and the presence of Ulva fasciata. The increase in OTC level promoted nutrient (NO3_-N and PO43--P) removal mainly due to Ulva fasciata adsorption. The abundances of the Euryarchaeota and Planctomycetes phyla in sediments were positively related to the increase in OTC stress, while a negative correlation occurred for the Proteobacteria phylum via metagenomic analysis. Compared with the control system, the increase rates of total ARGs were 3.90%, 7.36% and 13.42% at the OTC levels of 10, 100 and 500 μg L-1, respectively. OTC stress mainly favoured the collateral enrichment of non-corresponding polypeptide and MLS ARGs, mainly due to the enrichment of the phyla Planctomycetes and Euryarchaeota by the synergistic effect of OTC and nutrients. The results of quantitative PCR with tetracycline resistance genes (TRGs) (tetO, tetT, tetPB, tetW and otrA) and a horizontal transfer gene (intl1) demonstrated that all of genes had much higher gene numbers in sediments after 3 months of OTC stress than in those without OTC stress, which was strongly related to the variation in the phyla Bacteroidetes, Gemmatimonadetes and Acidobacteria. The significant correlation between intl1 and the target TRGs is indicative of the important role of the horizontal transfer of integron-resistant genes in the spread of TRGs.
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Affiliation(s)
- Yuqin Luo
- Department of Environment Science and Engineering, Zhejiang Ocean University, Zhoushan, 316022, PR China
| | - Lijuan Feng
- Department of Environment Science and Engineering, Zhejiang Ocean University, Zhoushan, 316022, PR China.
| | - Rong Jia
- Department of Environment Science and Engineering, Zhejiang Ocean University, Zhoushan, 316022, PR China
| | - Guangfeng Yang
- Department of Environment Science and Engineering, Zhejiang Ocean University, Zhoushan, 316022, PR China
| | - Qiao Yang
- Department of Environment Science and Engineering, Zhejiang Ocean University, Zhoushan, 316022, PR China
| | - Jun Mu
- Department of Environment Science and Engineering, Zhejiang Ocean University, Zhoushan, 316022, PR China; School of Ecology and Environment, Hainan Tropical Ocean University, Sanya City, 572022, PR China
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Zhang X, Chen Z, Ma Y, Zhang N, Pang Q, Xie X, Li Y, Jia J. Response of Anammox biofilm to antibiotics in trace concentration: Microbial activity, diversity and antibiotic resistance genes. JOURNAL OF HAZARDOUS MATERIALS 2019; 367:182-187. [PMID: 30594718 DOI: 10.1016/j.jhazmat.2018.12.082] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 12/12/2018] [Accepted: 12/21/2018] [Indexed: 06/09/2023]
Abstract
Long-term impacts of two antibiotics-norfloxacin (NOR) and erythromycin (ERY) in trace concentration (1ug L-1) on Anammox biofilm were investigated. The specific Anammox activity (SAA) and dehydrogenase activity (DHA) of Anammox biofilm were detected by batch experiments, the microbial diversity was analyzed using high-throughput sequencing technology and the antibiotic resistance genes (ARGs) were measured by qPCR. Results showed that long-term NOR feeding decreased 30% SAA and 39.6% DHA, and also decreased the abundance of the OTUs related to autotrophic nitrogen removal, while ERY had slight impact on Anammox. Only two ARGs targeted to ERY (ermB, mphA) were detected in the two Anammox systems while those targeted to NOR (qnrA, qnrB, qnrD, and qnrS) were not detected. The relative expression of ermB to 16S rRNA increased from 2.08±0.32×10-4 to 3.53±1.18×10-4, and that of mphA increased to 5.00±0.48×10-4 from 4.48±1.32×10-5. The induced ARGs in the Anammox system help it resist the ERY shock.
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Affiliation(s)
- Xiaojing Zhang
- Henan Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China.
| | - Zhao Chen
- Henan Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China
| | - Yongpeng Ma
- Henan Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China; School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Nan Zhang
- Henan Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China
| | - Qi Pang
- Henan Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China
| | - Xuyang Xie
- Henan Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China
| | - Yingzhe Li
- Henan Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China
| | - Jinping Jia
- Henan Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China; School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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