1
|
Ping J, Dong Y, Xie L, Zhou Y, Zhang L, Huang Y, Liao L, Cheng W, Peng F, Song H. Effect of reactive oxygen species (ROS) produced by pyridine and quinoline on NH 4+-N removal under phenol stress: The shift of nitrification pathway and its potential mechanisms. WATER RESEARCH 2024; 267:122478. [PMID: 39316963 DOI: 10.1016/j.watres.2024.122478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Revised: 08/17/2024] [Accepted: 09/17/2024] [Indexed: 09/26/2024]
Abstract
Pyridine and quinoline are typical nitrogenous heterocyclic compounds with different structures that are found in coking wastewater. However, neither the corresponding mechanism nor its effect on the degradation of NH4+-N under phenol stress is known. In this study, the effects of pyridine and quinoline degradation on NH4+-N removal under phenol stress were evaluated using three lab-scale sequencing batch reactors. The average NH4+-N removal efficiencies of the reactors were 99.46 %, 88.86 %, and 98.64 %. With the increased concentration of pyridine and quinoline, NH4+-N and NO3--N accumulated to 58.37 mg/L and 141.37 mg/L, respectively, due to the lack of an electron donor and anaerobic environment. The addition of pyridine and quinoline significantly improved antioxidant response and altered the nitrification pathway. The nitrification process shifted from the mediation of amo and hao to the mediation of Ncd2 due to oxidative stress induced by pyridine and quinoline. Furthermore, oxidative stress interferes with the metabolism of carbon sources, resulting in decreased biomass. These results provide a new perspective for coking wastewater treatment processes.
Collapse
Affiliation(s)
- Jiapeng Ping
- Hubei Key Laboratory of Regional Development and Environmental Response, School of Resources and Environmental Science, Hubei University, Wuhan, 430062, China
| | - Yuji Dong
- Hubei Key Laboratory of Regional Development and Environmental Response, School of Resources and Environmental Science, Hubei University, Wuhan, 430062, China
| | - Liuan Xie
- Hubei Key Laboratory of Regional Development and Environmental Response, School of Resources and Environmental Science, Hubei University, Wuhan, 430062, China
| | - Yushan Zhou
- Hubei Key Laboratory of Regional Development and Environmental Response, School of Resources and Environmental Science, Hubei University, Wuhan, 430062, China
| | - Lihong Zhang
- Hubei Key Laboratory of Regional Development and Environmental Response, School of Resources and Environmental Science, Hubei University, Wuhan, 430062, China
| | - Yuxuan Huang
- Hubei Key Laboratory of Regional Development and Environmental Response, School of Resources and Environmental Science, Hubei University, Wuhan, 430062, China
| | - Lipei Liao
- Hubei Key Laboratory of Regional Development and Environmental Response, School of Resources and Environmental Science, Hubei University, Wuhan, 430062, China
| | - Wanli Cheng
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan, 430062, China; Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing, Ministry of Education, School of Chemical Engineering, Northwest University, Xi'an, 710069, China
| | - Fang Peng
- Hubei Key Laboratory of Regional Development and Environmental Response, School of Resources and Environmental Science, Hubei University, Wuhan, 430062, China; Key Laboratory for Quality Control of Characteristic Fruits and Vegetables of Hubei Province, College of Life, Science and Technology, Hubei Engineering University, Xiaogan, 432000, China
| | - Huiting Song
- Hubei Key Laboratory of Regional Development and Environmental Response, School of Resources and Environmental Science, Hubei University, Wuhan, 430062, China; State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan, 430062, China.
| |
Collapse
|
2
|
Liu Z, Jiang B, Sun Z. Mechanism of self-supporting montmorillonite composite material for bio-enhanced degradation of chlorotetracycline: Electron transfer and microbial response. BIORESOURCE TECHNOLOGY 2024; 404:130928. [PMID: 38838830 DOI: 10.1016/j.biortech.2024.130928] [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: 04/29/2024] [Revised: 05/27/2024] [Accepted: 06/02/2024] [Indexed: 06/07/2024]
Abstract
The efficient degradation of antibiotics holds significant implications for mitigating environmental pollution. This study synthesized a montmorillonite chitosan composite material (MMT-CS) using the gel template method. Subsequently, a bio-enhanced reactor was constructed to facilitate the degradation of chlorotetracycline (CTC). The addition of MMT-CS composite material enables the degradation of different concentrations of CTC. MMT-CS, a conductive carrier, effectively promotes microbial adhesion and boosts the metabolic activity of functional microorganisms. Additionally, it facilitates the maintenance of microbial activity under CTC pressure by promoting the secretion of extracellular polymeric substances, increasing critical enzyme activity, and enhancing the electron transfer capacity within the system. In this MMT-CS bio-enhanced process, Paracoccus (11.4%) and Bacillus (3.9%) are utilized as essential bacteria genes. The results of metabolic pathways prediction indicated significant enhancements in membrane-transport, nucleotide-metabolism, replication-repair, and lipid-metabolism. Thus, the developed self-supporting MMT-CS bio-enhanced process ensured the stability of the system during the removal of antibiotics.
Collapse
Affiliation(s)
- Zhibin Liu
- Department of Environmental Engineering, Beijing University of Technology, Beijing 100124, PR China; National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, PR China
| | - Bingyu Jiang
- Department of Environmental Engineering, Beijing University of Technology, Beijing 100124, PR China; National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, PR China
| | - Zhirong Sun
- Department of Environmental Engineering, Beijing University of Technology, Beijing 100124, PR China; National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, PR China.
| |
Collapse
|
3
|
Peng Y, Xiao X, Ren B, Zhang Z, Luo J, Yang X, Zhu G. Biological activity and molecular mechanism of inactivation of Microcystis aeruginosa by ultrasound irradiation. JOURNAL OF HAZARDOUS MATERIALS 2024; 468:133742. [PMID: 38367436 DOI: 10.1016/j.jhazmat.2024.133742] [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: 10/13/2023] [Revised: 02/05/2024] [Accepted: 02/05/2024] [Indexed: 02/19/2024]
Abstract
Harmful algal blooms (HABs) significantly impact on water quality and ecological balance. Ultrasound irradiation has proven to be an effective method for algal control. Nevertheless, the molecular mechanisms underlying the inactivation of M. aeruginosa by ultrasound are still unknown. In this study, the physiological activity and molecular mechanism of algal cells exposed to different frequencies of ultrasound were studied. The results indicated a pronounced inhibition of algal cell growth by high-frequency, high-dose ultrasound. Moreover, with increasing ultrasound dosage, there was a higher percentage of algal cell membrane ruptures. SEM and TEM observed obvious disruptions in membrane structure and internal matrix. Hydroxyl radicals generated by high-frequency ultrasound inflicted substantial cell membrane damage, while increased antioxidant enzyme activities fortified cells against oxidative stress. Following 2 min of ultrasound irradiation at 740 kHz, significant differential gene expression occurred in various aspects, including energy metabolism, carbohydrate metabolism, and environmental information processing pathways. Moreover, ultrasound irradiation influenced DNA repair and cellular apoptosis, suggesting that the algal cells underwent biological stress to counteract the damage caused by ultrasound. These findings reveal that ultrasound irradiation inactivates algae by destroying their cell structures and metabolic pathways, thereby achieving the purpose of algal suppression.
Collapse
Affiliation(s)
- Yazhou Peng
- College of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Xiang Xiao
- College of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Bozhi Ren
- College of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, China.
| | - Zhi Zhang
- College of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Jun Luo
- Changsha Economic and Technical Development Zone Water Purification Engineering Co., Ltd, Changsha 410100, China
| | - Xiuzhen Yang
- College of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Guocheng Zhu
- College of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| |
Collapse
|
4
|
Castellano-Hinojosa A, Gallardo-Altamirano MJ, González-Martínez A, González-López J. Novel insights into the impact of anticancer drugs on the performance and microbial communities of a continuous-flow aerobic granular sludge system. BIORESOURCE TECHNOLOGY 2024; 394:130195. [PMID: 38081471 DOI: 10.1016/j.biortech.2023.130195] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 12/08/2023] [Accepted: 12/09/2023] [Indexed: 02/04/2024]
Abstract
Anticancer drugs are frequently found in domestic wastewater, but knowledge of their impacts on wastewater treatment processes is limited. The effects of three levels of concentrations (low, medium, and high) of three anticancer drugs on physicochemical parameters and prokaryotic communities of a continuous-flow aerobic granular sludge (AGS) system were examined. Drugs at medium and high concentrations reduced the removal of total nitrogen and organic matter during the first 15 days of operation by approximately 15-20 % compared to a control, but these effects disappeared afterward. Removal efficiencies of drugs were in the range of 51.2-100 % depending on the concentration level. Drugs at medium and high concentrations reduced the abundance and diversity and altered the composition of prokaryotic communities. Specific taxa were linked to variations in performance parameters after the addition of the drugs. This study provides improved knowledge of the impacts of anticancer drugs in AGS systems operated in continuous-flow reactor.
Collapse
Affiliation(s)
- Antonio Castellano-Hinojosa
- Department of Microbiology, Institute of Water Research, University of Granada, C/Ramon y Cajal, 4, Granada 18071, Spain.
| | - Manuel J Gallardo-Altamirano
- Department of Microbiology, Institute of Water Research, University of Granada, C/Ramon y Cajal, 4, Granada 18071, Spain
| | - Alejandro González-Martínez
- Department of Microbiology, Institute of Water Research, University of Granada, C/Ramon y Cajal, 4, Granada 18071, Spain
| | - Jesús González-López
- Department of Microbiology, Institute of Water Research, University of Granada, C/Ramon y Cajal, 4, Granada 18071, Spain
| |
Collapse
|
5
|
Liu S, Wu J, Hu Z, Jiang M. Changes in microbial community during hydrolyzed sludge reduction. Front Microbiol 2023; 14:1239218. [PMID: 37720154 PMCID: PMC10502510 DOI: 10.3389/fmicb.2023.1239218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 08/21/2023] [Indexed: 09/19/2023] Open
Abstract
In this study, the effects of different enzymes (lysozyme, α-amylase and neutral protease) on sludge hydrolysis efficiency and microbial community in sequencing batch reactor (SBR) were introduced. The results showed that the hydrolysis efficiencies of the three enzymes were 48.5, 22.5 and 31%, respectively, compared with the accumulated sludge discharge of the blank control group. However, it has varying degrees of impact on the effluent quality, and the denitrification and phosphorus removal effect of the system deteriorates. The lysozyme that achieves the optimal sludge hydrolysis effect of 48.5% has the greatest impact on the chemical oxygen demand (COD), total nitrogen (TN), and nitrate nitrogen (NO3--N) of the effluent. The sludge samples of the control group and the groups supplemented with different enzyme preparations were subjected to high-throughput sequencing. It was found that the number of OTUs (Operational Taxonomic Units) of the samples was lysozyme > α-amylase > blank control > neutral protease. Moreover, the abundance grade curve of the sludge samples supplemented with lysozyme and α-amylase was smoother, and the community richness and diversity were improved by lysozyme and α-amylase. The species diversity of the sludge supplemented with lysozyme and neutral protease was great, and the community succession was obvious. The introduction of enzymes did not change the main microbial communities of the sludge, which were mainly Proteobacteria, Actinobacteria and Bacteroidetes. The effects of three enzyme preparations on sludge reduction and microbial diversity during pilot operation were analyzed, the gap in microbial research was filled, which provided theoretical value for the practical operation of enzymatic sludge reduction.
Collapse
Affiliation(s)
- Shaomin Liu
- School of Earth and Environment, Anhui University of Science and Technology, Huainan, China
- State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines (Anhui University of Science and Technology), Huainan, China
| | - Jiating Wu
- School of Earth and Environment, Anhui University of Science and Technology, Huainan, China
- State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines (Anhui University of Science and Technology), Huainan, China
| | - Ziyan Hu
- School of Earth and Environment, Anhui University of Science and Technology, Huainan, China
- State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines (Anhui University of Science and Technology), Huainan, China
| | - Mengyu Jiang
- School of Earth and Environment, Anhui University of Science and Technology, Huainan, China
- State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines (Anhui University of Science and Technology), Huainan, China
| |
Collapse
|
6
|
Naraginti S, Kuppusamy S, Lavanya K, Zhang F, Liu X. Sunlight-driven intimately coupled photocatalysis and biodegradation (SDICPB): A sustainable approach for enhanced detoxification of triclosan. CHEMOSPHERE 2023:139210. [PMID: 37315856 DOI: 10.1016/j.chemosphere.2023.139210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/20/2023] [Accepted: 06/11/2023] [Indexed: 06/16/2023]
Abstract
Triclosan is considered as recalcitrant contaminant difficult to degrade from the contaminated wastewater. Thus, promising, and sustainable treatment method is necessary to remove triclosan from the wastewater. Intimately coupled photocatalysis and biodegradation (ICPB) is an emerging, low-cost, efficient, and eco-friendly method for the removal of recalcitrant pollutants. In this study BiOI photocatalyst coated bacterial biofilm developed at carbon felt for efficient degradation and mineralization of triclosan was studied. Based on the characterization of BiOI prepared using methanol had lower band gap 1.85 eV which favors lower recombination of electron-hole pair and higher charge separation which ascribed to enhanced photocatalytic activity. ICPB exhibits 89% of triclosan degradation under direct sunlight exposure. The results showed that production of reactive oxygen species hydroxyl radical and superoxide radical anion played crucial role in the degradation of triclosan into biodegradable metabolites further the bacterial communities mineralized the biodegradable metabolites into water and carbon dioxide. The confocal laser scanning electron microscope results emphasized that interior of the biocarrier shows a large number of live bacterial cells existing in the photocatalyst-coated carrier, where the little toxic effect on bacterial biofilm occurred on the exterior of the carrier. The extracellular polymeric substances characterization result remarkable confirms that which could act as sacrificial agent of photoholes further helped by preventing the toxicity to the bacterial biofilm from the reactive oxygen species and triclosan. Hence, this promising approach can be a possible alternative method for the wastewater treatment polluted with triclosan.
Collapse
Affiliation(s)
| | - Sathishkumar Kuppusamy
- School of Physics and Electronic Information, Yan'an University, Yan'an, 716000, China; Rhizosphere Biology Laboratory, Department of Microbiology, Bharathidasan University, Tiruchirappalli, 620 024, Tamil Nadu, India
| | - Kubendiran Lavanya
- Department of Environmental Science, School of Life Sciences, Periyar University, Salem, Tamil Nadu, 636 011, India
| | - Fuchun Zhang
- School of Physics and Electronic Information, Yan'an University, Yan'an, 716000, China.
| | - Xinghui Liu
- School of Physics and Electronic Information, Yan'an University, Yan'an, 716000, China; Department of Materials Physics, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMTS), Thandalam, Chennai, 602105, Tamilnadu, India.
| |
Collapse
|
7
|
Chawley P, Jagadevan S. Biodegradation of quinoline by Nitrosomonas mobilis Ms1 through nitrification: A mechanistic study. Biochem Eng J 2023. [DOI: 10.1016/j.bej.2023.108933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
|