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Huang X, Cai M, Yan L, Xiao R, Mu Y, Ren Y. Assessment of air pollutant O 3 pulmonary exposure using a bronchus-on-chip model coupling with atmospheric simulation chamber. JOURNAL OF HAZARDOUS MATERIALS 2025; 486:137106. [PMID: 39764952 DOI: 10.1016/j.jhazmat.2025.137106] [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: 08/30/2024] [Revised: 12/26/2024] [Accepted: 01/01/2025] [Indexed: 03/12/2025]
Abstract
Heavy air pollution is now a serious public health issue. Many studies have shown strong connections between ozone (O3) with the occurrence and development of various respiratory diseases. However, the exact mechanism is still a matter of debate. In this work, we developed a human bronchial epithelial cells (HBECs) chip that differentiates different functional cell groups of ciliated, goblet, and club cells to model the pulmonary bronchial barrier function. Concurrently, we designed an Atmospheric-Biochemical-Chip reactor (ABC-reactor), a system that could simulate different levels of O3 and particle matter. Coupling the HBECs-on-chip model with ABC-reactor, we investigated the effects of O3 at 400 ppbv and 200 ppbv on the pulmonary bronchial barrier. Our results showed that O3 at 400 ppbv severely disrupted the bronchial barrier and upregulated the expression of pro-inflammatory cytokines. However, 200 ppbv of O3 did not cause severe barrier impairment but induced cellular dysfunction, apoptosis, and reduced immune response. These suggest that bronchial trauma does exist at 200 ppbv of O3 but is not easily detected by the body due to the reduced inflammatory response. However, more research is needed to understand if the trauma induced by 200 ppbv of O3 is reversible and the interaction mechanism between O3 and PM2.5.
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Affiliation(s)
- Xuanming Huang
- Laboratory of Atmospheric Environment and Pollution Control (LAEPC), Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Min Cai
- Laboratory of Atmospheric Environment and Pollution Control (LAEPC), Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Lei Yan
- Beijing Daxiang Biotech Co., Ltd, Beijing 100191, China
| | - Rongrong Xiao
- Beijing Daxiang Biotech Co., Ltd, Beijing 100191, China
| | - Yujing Mu
- Laboratory of Atmospheric Environment and Pollution Control (LAEPC), Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yangang Ren
- Laboratory of Atmospheric Environment and Pollution Control (LAEPC), Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China.
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2
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Xue S, Guo G, Gao J, Zhang Y, Marhaba T, Zhang W. Optimizing Nanobubble Production in Ceramic Membranes: Effects of Pore Size, Surface Hydrophobicity, and Flow Conditions on Bubble Characteristics and Oxygenation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2025; 41:3592-3602. [PMID: 39873749 DOI: 10.1021/acs.langmuir.4c04781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2025]
Abstract
Precise control of nanobubble size is essential for optimizing the efficiency and performance of nanobubble applications across diverse fields, such as agriculture, water treatment, and medicine. Producing fine bubbles, including nanobubbles, is commonly achieved by purging gas through porous media, such as ceramic or polymer membranes. Many operational factors and membrane properties can significantly influence nanobubble production and characteristics. This study examines how membrane pore size, surface hydrophobicity, and gas/water flow conditions affect nanobubble size and concentration. Findings reveal that reducing the ceramic membrane pore size from 200 to 10 nm slightly decreased the mean nanobubble diameter from 115 to 89 nm. Furthermore, membranes with a hydrophilic outer surface and hydrophobic pore surface generated smaller nanobubbles with higher concentrations in water. Additionally, a high water cross-flow rate (e.g., >1 L·min-1) increased the nanobubble concentration, though bubble size remained unaffected. In contrast, the gas flow rate had a more pronounced effect. Increasing the gas flow rate from 0.5 to 12 L·min-1 significantly raised the nanobubble concentration from 3.09 × 108 to 1.24 × 109 bubbles·mL-1 while reducing the mean bubble diameter from 100 to 79 nm. An interfacial force model was applied to analyze bubble detachment at the membrane pore outlet, considering factors such as gas flow/pressure, surface tension, and shear forces from the water flow. These findings offer valuable insights into the mechanisms governing nanobubble generation via gas injection through porous membranes.
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Affiliation(s)
- Shan Xue
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, 323 Martin Luther King Blvd., Newark, New Jersey 07102, United States
- PureNanotech Inc. 239 New Rd A 104, Parsippany, New Jersey 07054, United States
| | - Guangyu Guo
- Brisea International Development Inc., 239 New Rd A315, Parsippany, New Jersey 07054, United States
| | - Jianan Gao
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, 323 Martin Luther King Blvd., Newark, New Jersey 07102, United States
| | - Yihan Zhang
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, 323 Martin Luther King Blvd., Newark, New Jersey 07102, United States
| | - Taha Marhaba
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, 323 Martin Luther King Blvd., Newark, New Jersey 07102, United States
| | - Wen Zhang
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, 323 Martin Luther King Blvd., Newark, New Jersey 07102, United States
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3
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Zhang Y, Xue S, Li Y, Tao Y, Liu C, Marhaba T, Zhang W. Nanobubble-enabled foam fractionation to remove algogenic odorous micropollutants. WATER RESEARCH 2024; 267:122540. [PMID: 39357160 DOI: 10.1016/j.watres.2024.122540] [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: 04/02/2024] [Revised: 09/24/2024] [Accepted: 09/26/2024] [Indexed: 10/04/2024]
Abstract
Due to climate change and environmental pollution, natural lakes and reservoir water suffer increasingly serious algal blooms and associated water quality problems due to the presence of algal or algogenic organic matter (AOM) such as algal odour and toxins. Effective removal of these micropollutants, especially in the event of algal blooms, is critical to aesthetic values of water bodies, drinking water security and human health. The study investigated the removal efficiency of two common odorous compounds, trans-1,10-dimethyl-trans-9-decalol (geosmin) and 2-Methylisoborneol (2-MIB), using foam fractionation enabled by air nanobubbles with addition of two common cationic and anionic surfactants, sodium dodecyl sulfate (SDS) and cetyltrimethylammonium bromide (CTAB), to enhance foaming ability and stability. The results showed that the cationic surfactant (i.e., CTAB), a low pH, and high ionic strength significantly promoted the removal of geosmin and 2-MIB. For example, the removal tests using the synthetic water determined that the conditions of pH = 7, [CTAB] = 20 mg·L-1 and IS = 10 mM as NaCl resulted in both the highest geosmin removal rate of 91.81% and highest 2-MIB removal rate of 85.0%. The removal of two odorous compounds in real lake water was evaluated, which yielded removal rates of 83.2% for geosmin and 48.1% for 2-MIB, highlighting the minor inhibition from water matrixes on the removal performances. Compared to microbubbles, nanobubbles enabled greater surface areas of foam and higher removal efficiencies. The study provided new insights into the use of foam fractionation with air nanobubbles to enhance the removal of odorous compounds from impaired water and mitigate the negative environmental and health impacts of harmful algal blooms (HABs).
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Affiliation(s)
- Yihan Zhang
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, 323 Martin Luther King Blvd, Newark, NJ 07102, USA
| | - Shan Xue
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, 323 Martin Luther King Blvd, Newark, NJ 07102, USA
| | - Yang Li
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China
| | - Yi Tao
- Guangdong Provincial Engineering Research Center for Urban Water Recycling and Environmental Safety, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, PR China
| | - Changqing Liu
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, PR China
| | - Taha Marhaba
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, 323 Martin Luther King Blvd, Newark, NJ 07102, USA
| | - Wen Zhang
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, 323 Martin Luther King Blvd, Newark, NJ 07102, USA.
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4
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Fan X, Fu Q, Liu G, Jia H, Dong X, Li YF, Cui S. Applying molecular oxygen for organic pollutant degradation: Strategies, mechanisms, and perspectives. ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY 2024; 22:100469. [PMID: 39262838 PMCID: PMC11387708 DOI: 10.1016/j.ese.2024.100469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 07/26/2024] [Accepted: 07/29/2024] [Indexed: 09/13/2024]
Abstract
Molecular oxygen (O2) is an environmentally friendly, cost-effective, and non-toxic oxidant. Activation of O2 generates various highly oxidative reactive oxygen species (ROS), which efficiently degrade pollutants with minimal environmental impact. Despite extensive research on the application of O2 activation in environmental remediation, a comprehensive review addressing this topic is currently lacking. This review provides an informative overview of recent advancements in O2 activation, focusing on three primary strategies: photocatalytic activation, chemical activation, and electrochemical activation of O2. We elucidate the respective mechanisms of these activation methods and discuss their advantages and disadvantages. Additionally, we thoroughly analyze the influence of oxygen supply, reactive temperature, and pH on the O2 activation process. From electron transfer and energy transfer perspectives, we explore the pathways for ROS generation during O2 activation. Finally, we address the challenges faced by researchers in this field and discuss future prospects for utilizing O2 activation in pollution control applications. This detailed analysis enhances our understanding and provides valuable insights for the practical implementation of organic pollutant degradation.
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Affiliation(s)
- Xiaohu Fan
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin, 150030, China
- Research Center for Eco-Environment Protection of Songhua River Basin, Northeast Agricultural University, Harbin, 150030, China
| | - Qiang Fu
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin, 150030, China
- Research Center for Eco-Environment Protection of Songhua River Basin, Northeast Agricultural University, Harbin, 150030, China
| | - Guorui Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Hongliang Jia
- IJRC-PTS, College of Environmental Science and Engineering, Dalian Maritime University, Dalian, 116026, China
| | - Xiaolong Dong
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin, 150030, China
- Research Center for Eco-Environment Protection of Songhua River Basin, Northeast Agricultural University, Harbin, 150030, China
| | - Yi-Fan Li
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin, 150030, China
- Research Center for Eco-Environment Protection of Songhua River Basin, Northeast Agricultural University, Harbin, 150030, China
| | - Song Cui
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin, 150030, China
- Research Center for Eco-Environment Protection of Songhua River Basin, Northeast Agricultural University, Harbin, 150030, China
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5
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Sharma H, Nirmalkar N, Zhang W. Nanobubbles produced by nanopores to probe gas-liquid mass transfer characteristics. J Colloid Interface Sci 2024; 665:274-285. [PMID: 38531273 DOI: 10.1016/j.jcis.2024.03.080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 02/27/2024] [Accepted: 03/11/2024] [Indexed: 03/28/2024]
Abstract
HYPOTHESIS This study tested the hypothesis of how the nanopore size of membranes and how the surface charge of nanobubbles responds to its pinch-off from the nanopore. This study also tested the hypothesis that nanobubbles that remain in solution after production may increase the dissolved oxygen content in water. EXPERIMENTS The effect of membrane pore size, hydrodynamic conditions (gas and liquid flow rates), and physicochemical parameters (pH and temperature) on volumetric mass transfer coefficient (kLa) for oxygen nanobubbles formed by the nanopore diffusion technique was investigated. This study experimentally determined the kLa by carefully removing the dissolved oxygen by nitrogen purging from nanobubble suspension to examine the sole contribution of nanobubble dissolution in water to the reaeration. RESULTS Scaling estimates indicate that the nanobubble pinch-off radius and nanopore radius have a power-law correlation and that nanobubble size declines with the nanopore size. This is in line with our experimental results. The surface charge of nanobubbles delays its pinch-off at the gas-liquid interface. Nanobubbles offered 3-4 times higher kLa than microbubbles. Standard oxygen transfer efficiency in water was found to be 78%, significantly higher than that in microbubbles. However, dissolving stable nanobubbles in water does not considerably increase dissolved oxygen levels.
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Affiliation(s)
- Harsh Sharma
- Department of Chemical Engineering, Indian Institute of Technology Ropar, Rupnagar-140001, India
| | - Neelkanth Nirmalkar
- Department of Chemical Engineering, Indian Institute of Technology Ropar, Rupnagar-140001, India.
| | - Wen Zhang
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
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6
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Borsky L, Yecheskel Y, Rogers NMK, Ran N, Herzberg M, Zucker I. Nanobubble transport in porous media: Towards agro- and environmental applications. CHEMOSPHERE 2024; 360:142451. [PMID: 38801904 DOI: 10.1016/j.chemosphere.2024.142451] [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: 04/22/2024] [Revised: 05/24/2024] [Accepted: 05/25/2024] [Indexed: 05/29/2024]
Abstract
Nanobubbles have been increasingly used in various applications involving porous media, such as groundwater remediation and irrigation. However, the fundamental scientific knowledge regarding the interactions between nanobubbles and the media is still limited. The interactions can be repulsive, attractive, or inert, and can involve reversible or irreversible attachment as well as destructive mechanisms. Specifically, the stability and mobility of nanobubbles in porous media is expected to be dependent on the dynamic conditions and the physicochemical properties of the porous media, solutions, and nanobubbles themselves. In this study, we investigated how changes in solution chemistry (pH, ionic strength, and valence) and media characteristics (size and wettability) affect the size and concentration of nanobubbles under dynamic conditions using column experiments. Quartz crystal microbalance with dissipation monitoring provided a deeper understanding of irreversible and elastic nanobubbles' interactions with silica-coated surfaces. Our findings suggest that nanobubbles are less mobile in solutions of higher ionic strength and valence, acidic pH and smaller porous media sizes, while the wettability of porous media has a negligible influence on the retention of nanobubbles. Overall, our findings provide insights into the underlying mechanisms of nanobubble interactions and suggest potential strategies to optimize their delivery in various applications.
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Affiliation(s)
- Lina Borsky
- School of Mechanical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv, 69978, Israel.
| | - Yinon Yecheskel
- School of Mechanical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv, 69978, Israel; Porter School of Earth and Environmental Studies, Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 69978, Israel.
| | - Nicholas M K Rogers
- School of Mechanical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv, 69978, Israel.
| | - Noya Ran
- Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sde Boker Campus, Israel.
| | - Moshe Herzberg
- Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sde Boker Campus, Israel.
| | - Ines Zucker
- School of Mechanical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv, 69978, Israel; Porter School of Earth and Environmental Studies, Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 69978, Israel.
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7
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Ren W, Sands M, Han X, Tsipursky M, Irudayaraj J. Hydrogel-Based Oxygen and Drug Delivery Dressing for Improved Wound Healing. ACS OMEGA 2024; 9:24095-24104. [PMID: 38854553 PMCID: PMC11154931 DOI: 10.1021/acsomega.4c03324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 05/08/2024] [Accepted: 05/15/2024] [Indexed: 06/11/2024]
Abstract
Herein, we propose a Carbopol hydrogel-based oxygen nanodelivery "nanohyperbaric" system as a wound dressing material for an enhanced wound healing process. Oxygen nanobubbles (ONBs) were used to supply oxygen, and collagenase was added in the gel as a drug model. Both oxygen and collagenase would benefit the wound healing process, and the Carbopol hydrogel serves as the matrix to load ONBs and collagenase in the wound dressing. The obtained ONB-embedded Carbopol hydrogel with collagenase (ONB-CC) could provide 12.08 ± 0.75 μg of oxygen from 1 mL of ONB-CC and exhibited a notable capacity to prolong the oxygen holding for up to 3 weeks and maintained the enzymatic activity of collagenase at more than 0.05 U per 0.1 mL of ONB-CC for up to 17 days. With HDFa cells, the ONB-CC did not show a notable effect on the cell viability. In a scratch assay, the oxygen from ONBs or collagenase aided cell migration; further, the ONB-CC induced the most obvious scratch closure, indicating an improvement in wound healing as a cocktail in the ONB-CC. The mRNA expression further demonstrated the effectiveness of the ONB-CC. Studies in rats with punched wounds treated with the ONB-CC dressing showed improved wound closure. Histopathological images showed that the ONB-CC dressing enhanced re-epithelization and formation of new blood vessels and hair follicles. The proposed ONB-CC has excellent potential as an ideal wound dressing material to accelerate wound healing by integration of multiple functions.
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Affiliation(s)
- Wen Ren
- Department
of Bioengineering, University of Illinois
at Urbana−Champaign, Urbana, Illinois 61801, United States
- Biomedical
Research Center in Mills Breast Cancer Institute, Carle Foundation Hospital, Champaign, Illinois 61801, United States
| | - Mia Sands
- Department
of Bioengineering, University of Illinois
at Urbana−Champaign, Urbana, Illinois 61801, United States
- Biomedical
Research Center in Mills Breast Cancer Institute, Carle Foundation Hospital, Champaign, Illinois 61801, United States
| | - Xiaoxue Han
- Department
of Bioengineering, University of Illinois
at Urbana−Champaign, Urbana, Illinois 61801, United States
- Biomedical
Research Center in Mills Breast Cancer Institute, Carle Foundation Hospital, Champaign, Illinois 61801, United States
| | - Michael Tsipursky
- Vitreo-Retinal
Surgery, Ophthalmology Department, Carle
Foundation Hospital, Champaign, Illinois 61802, United States
- Carle-Illinois
College of Medicine, Champaign, Illinois 61820, United States
- Revive
Biotechnology, Inc., EnterpriseWorks, 60 Hazelwood Drive, Champaign, Illinois 61820, United States
| | - Joseph Irudayaraj
- Department
of Bioengineering, University of Illinois
at Urbana−Champaign, Urbana, Illinois 61801, United States
- Biomedical
Research Center in Mills Breast Cancer Institute, Carle Foundation Hospital, Champaign, Illinois 61801, United States
- Carle-Illinois
College of Medicine, Champaign, Illinois 61820, United States
- Beckman
Institute, Carl Woese Institute of Genomic Biology, & Micro and
Nanotechnology Laboratory, University of
Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
- Cancer Center
at Illinois (CCIL), University of Illinois
at Urbana−Champaign, Urbana, Illinois 61801, United States
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8
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Rafryanto AF, Ramadina ZDP, Nur’aini S, Arrosyid BH, Zulfi A, Rochman NT, Noviyanto A, Arramel. High Recovery of Ceramic Membrane Cleaning Remediation by Ozone Nanobubble Technology. ACS OMEGA 2024; 9:11484-11493. [PMID: 38496990 PMCID: PMC10938438 DOI: 10.1021/acsomega.3c08379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 02/11/2024] [Accepted: 02/13/2024] [Indexed: 03/19/2024]
Abstract
The persistent issue of ceramic membrane fouling poses significant challenges to its widespread implementation. To address this concern, ozone nanobubbles (ozone-NBs) have garnered attention due to their remarkable mass transfer efficiency. In this investigation, we present a novel ozone-NB generator system to effectively clean a fouled ceramic membrane that is typically employed in the dye industry. The surface characteristics of the ceramic membrane underwent significant alterations, manifesting incremental changes in surface roughness and foulant accumulation reduction, as evidenced in atomic force microscopy, scanning electron microscopy, X-ray fluorescence, and energy-dispersive spectroscopy. Remarkably, the sequential 4 h cleaning process demonstrates an effective outcome leading to an almost 2-fold enhancement in the membrane flux. The initial fouled state of 608 L/h/m2 increased to 1050 L/h/m2 in the 4 h state with a recovery of 50%. We propose such membrane performance improvement governed by the ozone-NBs with a size distribution of 213.2 nm and a zeta potential value of -20.26 ± 0.13 mV, respectively. This effort showcases a substantial innovative and sustainable technology approach toward proficient foulant removal in water treatment applications.
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Affiliation(s)
- Ande F. Rafryanto
- Nano
Center Indonesia, Jl. Raya Serpong, South Tangerang, Banten 15314, Indonesia
- Department
of Chemical Engineering, Imperial College
London, South Kensington
Campus, London SW72AZ, U.K.
| | - Zakia D. P. Ramadina
- Nano
Center Indonesia, Jl. Raya Serpong, South Tangerang, Banten 15314, Indonesia
| | - Syarifa Nur’aini
- Nano
Center Indonesia, Jl. Raya Serpong, South Tangerang, Banten 15314, Indonesia
| | - Bagas H. Arrosyid
- Nano
Center Indonesia, Jl. Raya Serpong, South Tangerang, Banten 15314, Indonesia
| | - Akmal Zulfi
- Nano
Center Indonesia, Jl. Raya Serpong, South Tangerang, Banten 15314, Indonesia
- Research
Center for Environmental and Clean Technology, National Research and Innovation Agency (BRIN), Komplek BRIN Cisitu, Bandung 40135, Indonesia
| | - Nurul T. Rochman
- Nano
Center Indonesia, Jl. Raya Serpong, South Tangerang, Banten 15314, Indonesia
- Research
Center for Advanced Materials, National
Research and Innovation Agency, South Tangerang, Banten 15314, Indonesia
| | - Alfian Noviyanto
- Nano
Center Indonesia, Jl. Raya Serpong, South Tangerang, Banten 15314, Indonesia
- Department
of Mechanical Engineering, Faculty of Engineering, Mercu Buana University, Jl. Meruya Selatan, Kebun Jeruk, Jakarta 11650, Indonesia
| | - Arramel
- Nano
Center Indonesia, Jl. Raya Serpong, South Tangerang, Banten 15314, Indonesia
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9
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Zeng Y, Wang H, Liang D, Yuan W, Shen Y, Shen Z, Gu Q. Shape- and polymer-considered simulation to unravel the estuarine microplastics fate. JOURNAL OF HAZARDOUS MATERIALS 2024; 461:132679. [PMID: 37793263 DOI: 10.1016/j.jhazmat.2023.132679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/18/2023] [Accepted: 09/29/2023] [Indexed: 10/06/2023]
Abstract
Environmental microplastics (MPs) constitute various sizes, polymers, and shape components. In estuaries, such differences are related to the reliability of assessing the seaward fate of MPs, aggregation hotspots, and ecological risks. This study sets the MP particle mass gradient using the shape factor and size probability density function to categorically estimate the MP load in the surface layer of the Yangtze River Estuary (YRE), which is the largest contributor of plastics to the sea. During the high plastic input period in July, the optimized estimated MP load through the surface layer of the YRE was 9766 kg/month, which was overestimated by 821 kg/month based on the empirical average particle mass. While tracking MP transport classified by shape and polymer type, the resuspension of MPs that accumulate in the intertidal zone cannot be neglected. The average relative error of the simulation was as low as 19.6% after including the abovementioned factors. Finally, the simulation results of the sensitive regions were extracted to assess the new MP risk index, which considers shape, abundance, and polymer type. By introducing these essential tools, this study helps to understand the fate of riverine MPs entering estuaries, where valuable opportunities for removing MPs exist before they spread to the oceans.
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Affiliation(s)
- Yichuan Zeng
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China; College of Environment, Hohai University, Nanjing 210098, China
| | - Hua Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China; College of Environment, Hohai University, Nanjing 210098, China.
| | - Dongfang Liang
- Department of Engineering, University of Cambridge, Cambridge CB2 1PZ, UK
| | - Weihao Yuan
- Nanjing Institute of Environmental Science, Ministry of Ecology and Environment, Nanjing 210042, China
| | - Yuhan Shen
- Dept. of Civil, Environmental and Geomatic Engineering, University College London, London WC1E 6BT, UK
| | - Zilin Shen
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China; College of Environment, Hohai University, Nanjing 210098, China
| | - Qihui Gu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China; College of Environment, Hohai University, Nanjing 210098, China
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10
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Xue S, Gao J, Liu C, Marhaba T, Zhang W. Unveiling the potential of nanobubbles in water: Impacts on tomato's early growth and soil properties. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 903:166499. [PMID: 37634716 DOI: 10.1016/j.scitotenv.2023.166499] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 06/21/2023] [Accepted: 08/21/2023] [Indexed: 08/29/2023]
Abstract
Nanobubbles (NBs) in water have been proven to improve plant growth and seed germination, potentially reducing both water and fertilizer consumption. To unravel the promotion mechanism of NBs on plant growth, this study investigated the characteristics of NBs in tap water and their impacts on tomato's early growth, soil chemical properties, enzymatic activity and electrochemical properties of plant roots. Oxygen NBs (ONBs) were found to increase the seed germination by 10 % and plant growth by 30 %-50 % (e.g., stem and diameter), whereas nitrogen NBs (NNBs) only had a significant promotion (7 %-34 %) on plant height. Additionally, compared to control group, irrigation with ONBs increased the peroxidase activities by 500 %-1000 % in tomato leaves, which may increase the expression of genes for peroxidase and promote cell proliferation and plant growth. Moreover, electrical impedance spectroscopy (EIS) revealed that the ONBs could reduce the interfacial impedance due to the increased active surface area and electrical conductivity of root.
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Affiliation(s)
- Shan Xue
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Jianan Gao
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Changqing Liu
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, China
| | - Taha Marhaba
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Wen Zhang
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA.
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11
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Yan D, Xue S, Zhang Z, Xu G, Zhang Y, Gao J, Zhang W. Air nanobubble water improves plant uptake and tolerance toward cadmium in phytoremediation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 337:122577. [PMID: 37722479 DOI: 10.1016/j.envpol.2023.122577] [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: 06/22/2023] [Revised: 09/12/2023] [Accepted: 09/16/2023] [Indexed: 09/20/2023]
Abstract
Heavy metal contamination continues to be a persistent environmental problem. To address this issue, this study evaluated the impact of air nanobubbles (NBs) in water on the uptake of heavy metals by Alternanthera philoxeroides (A. philoxeroides), a common aquatic plant in China known for its rapid growth, strong vitality, and high capacity for heavy metal remediation. This study found that diluted air NBs (25% concentration) boosted cadmium uptake of A. philoxeroides by 17.39%. They also enhanced plant growth (25-50%) and photosynthetic pigments (10-20%) even at low cadmium levels (0.1 mM). Furthermore, the incorporation of 25% air NBs has been demonstrated to significantly amplify the performance of key antioxidant enzymes, such as superoxide dismutase and catalase, alongside heightened levels of crucial antioxidants such as malondialdehyde. This heightened activity of antioxidant defenses offers a compelling explanation for the potential amelioration of cadmium toxicity and concurrent enhancements in overall plant growth rates. Notably, a comprehensive analysis utilizing the excitation emission matrix-parallel factor analysis (EEM-PARAFAC) technique has revealed alterations in the composition of rhizosphere dissolved organic matter due to the presence of NBs. This ncomposition change of the rhizosphere dissolved organic mattermposition has subsequently exerted an influence on plant complexation processes and the subsequent uptake of cadmium. This study demonstrates that the strategic implementation of air NBs in water systems holds the potential to significantly enhance the plant's ability to detoxify cadmium and improve the uptake of heavy metals during phytoremediation processes.
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Affiliation(s)
- Dajiang Yan
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, 250101, China
| | - Shan Xue
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, 323 Martin Luther King Blvd., Newark, NJ, 07102, USA
| | - Zhibin Zhang
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, 250101, China.
| | - Guodong Xu
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, 250101, China
| | - Yanhao Zhang
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, 250101, China
| | - Jianan Gao
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, 323 Martin Luther King Blvd., Newark, NJ, 07102, USA
| | - Wen Zhang
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, 323 Martin Luther King Blvd., Newark, NJ, 07102, USA.
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12
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Chae S, Kim MS, Kim JH, Fortner JD. Nanobubble Reactivity: Evaluating Hydroxyl Radical Generation (or Lack Thereof) under Ambient Conditions. ACS ES&T ENGINEERING 2023; 3:1504-1510. [PMID: 37854075 PMCID: PMC10581208 DOI: 10.1021/acsestengg.3c00124] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/25/2023] [Accepted: 05/26/2023] [Indexed: 10/20/2023]
Abstract
Nanobubble (NB) generation of reactive oxygen species (ROS), especially hydroxyl radical (·OH), has been controversial. In this work, we extensively characterize NBs in solution, with a focus on ROS generation (as ·OH), through a number of methods including degradation of ·OH-specific target compounds, electron paramagnetic resonance (EPR), and a fluorescence-based indicator. Generated NBs exhibit consistent physical characteristics (size, surface potential, and concentration) when compared with previous studies. For conditions described, which are considered as high O2 NB concentrations, no degradation of benzoic acid (BA), a well-studied ·OH scavenger, was observed in the presence of NBs (over 24 h) and no EPR signal for ·OH was detected. While a positive fluorescence response was measured when using a fluorescence probe for ·OH, aminophenyl fluorescein (APF), we provide an alternate explanation for the result. Gas/liquid interfacial characterization indicates that the surface of a NB is proton-rich and capable of inducing acid-catalyzed hydrolysis of APF, which results in a false (positive) fluorescence response. Given these negative results, we conclude that NB-induced ·OH generation is minimal, if at all, for conditions evaluated.
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Affiliation(s)
- Seung
Hee Chae
- Department
of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Ave., New Haven, Connecticut 06520, United States
| | - Min Sik Kim
- Department
of Environmental Engineering and Soil Environment Research Center, Jeonbuk National University, Jeonju, Jeollabukdo 54896, Republic of Korea
| | - Jae-Hong Kim
- Department
of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Ave., New Haven, Connecticut 06520, United States
| | - John D. Fortner
- Department
of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Ave., New Haven, Connecticut 06520, United States
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13
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Wang T, Yang X, Li Z, Chen W, Wen X, He Y, Ma C, Yang Z, Zhang C. MeHg production in eutrophic lakes: Focusing on the roles of algal organic matter and iron-sulfur-phosphorus dynamics. JOURNAL OF HAZARDOUS MATERIALS 2023; 457:131682. [PMID: 37270963 DOI: 10.1016/j.jhazmat.2023.131682] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 05/20/2023] [Accepted: 05/21/2023] [Indexed: 06/06/2023]
Abstract
The mechanisms by which eutrophication affects methylmercury (MeHg) production have not been comprehensively summarized, which hinders accurately predicting the MeHg risk in eutrophic lakes. In this review, we first discussed the effects of eutrophication on biogeochemical cycle of mercury (Hg). Special attentions were paid to the roles of algal organic matter (AOM) and iron (Fe)-sulfur (S)-phosphorus (P) dynamics in MeHg production. Finally, the suggestions for risk control of MeHg in eutrophic lakes were proposed. AOM can affect in situ Hg methylation by stimulating the abundance and activities of Hg methylating microorganisms and regulating Hg bioavailability, which are dependent on bacteria-strain and algae species, the molecular weight and composition of AOM as well as environmental conditions (e.g., light). Fe-S-P dynamics under eutrophication including sulfate reduction, FeS formation and P release could also play crucial but complicated roles in MeHg production, in which AOM may participate through influencing the dissolution and aggregation processes, structural order and surface properties of HgS nanoparticles (HgSNP). Future studies should pay more attention to the dynamics of AOM in responses to the changing environmental conditions (e.g., light penetration and redox fluctuations) and how such variations will subsequently affect MeHg production. The effects of Fe-S-P dynamics on MeHg production under eutrophication also deserve further investigations, especially the interactions between AOM and HgSNP. Remediation strategies with lower disturbance, greater stability and less cost like the technology of interfacial O2 nanobubbles are urgent to be explored. This review will deepen our understanding of the mechanisms of MeHg production in eutrophic lakes and provide theoretical guidance for its risk control.
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Affiliation(s)
- Tantan Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Xu Yang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Zihao Li
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Wenhao Chen
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Xin Wen
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Yubo He
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Chi Ma
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Zhongzhu Yang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Chang Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China.
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14
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Agarwal K, Trivedi M, Ohl CD, Nirmalkar N. On Nanobubble Dynamics under an Oscillating Pressure Field during Salting-out Effects and Its DLVO Potential. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:5250-5262. [PMID: 37014662 DOI: 10.1021/acs.langmuir.2c03085] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
We have investigated the origin, stability, and nanobubble dynamics under an oscillating pressure field followed by the salting-out effects. The higher solubility ratio (salting-out parameter) of the dissolved gases and pure solvent nucleates nanobubbles during the salting-out effect, and the oscillating pressure field enhances the nanobubble density further as solubility varies linearly with gas pressure by Henry's law. A novel method for refractive index estimation is developed to differentiate nanobubbles and nanoparticles based on the scattering intensity of light. The electromagnetic wave equations have been numerically solved and compared with the Mie scattering theory. The scattering cross-section of the nanobubbles was estimated to be smaller than the nanoparticles. The DLVO potentials of the nanobubbles predict the stable colloidal system. The zeta potential of nanobubbles varied by generating nanobubbles in different salt solutions, and it is characterized by particle tracking, dynamic light scattering, and cryo-TEM. The size of nanobubbles in salt solutions was reported to be higher than that in pure water. The novel mechanical stability model is proposed by considering both ionic cloud and electrostatic pressure at the charged interface. The ionic cloud pressure is derived by electric flux balance, and it is found to be twice the electrostatic pressure. The mechanical stability model for a single nanobubble predicts the existence of stable nanobubbles in the stability map.
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Affiliation(s)
- Kalyani Agarwal
- Department of Chemical Engineering, Indian Institute of Technology, Ropar 140001, India
| | - Mohit Trivedi
- Department of Chemical Engineering, Indian Institute of Technology, Ropar 140001, India
| | - Claus-Dieter Ohl
- Otto-von-Guericke University Magdeburg, Faculty of Natural Sciences, Institute for Physics, Department Soft Matter, Universitaetsplatz 2, Magdeburg 39106, Germany
| | - Neelkanth Nirmalkar
- Department of Chemical Engineering, Indian Institute of Technology, Ropar 140001, India
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15
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Kakiuchi K, Kozuka T, Mase N, Miyasaka T, Harii N, Takeoka S. Do Ultrafine Bubbles Work as Oxygen Carriers? LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:1354-1363. [PMID: 36649623 DOI: 10.1021/acs.langmuir.2c01209] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Fine bubbles (FBs) are bubbles with sizes less than 100 μm and are divided into ultrafine bubbles (UFBs, < 1 μm) and microbubbles (MBs, 1-100 μm) depending on their size. Although FB aeration is known as a more efficient way than macrobubble aeration to increase the oxygen level in unoxygenated water, few reports have demonstrated whether dispersed UFBs work as oxygen carriers or not. Furthermore, oxygen supersaturation is one of the attractive characteristics of FB dispersion, but the reason is yet to be revealed. In this study, we evaluated the relationship between the FBs, especially UFB concentration, and oxygen content in several situations to reveal the two questions. The FB concentration and oxygen content were examined using particle analyzers and our developed oxygen measurement method, which can measure the oxygen content in FB dispersion, respectively. First, in the evaluations of the oxygen dispersion from UFBs with respect to the surrounding oxygen level, UFBs did become neither small nor diminish even in degassed water. Second, the changes in UFBs and oxygen content upon storage temperature and the existence of a lid during storage were evaluated, and there was no correlation between them. It means UFBs contribute little to the oxygen content in UFB dispersion. Furthermore, the oxygen content in the UFB dispersion decreased over time identically as that of the oxygen-supersaturated water with little UFBs. Third, we evaluated the relationship between FB concentration and oxygen content during FB generation by measuring them simultaneously. The results showed that dispersed MB and UFB concentrations did not account for the supersaturation of the FB dispersion. From the result, it was revealed that 100-200 nm of UFBs themselves did not work as oxygen carriers, and the oxygen supersaturation in FB dispersions was due to the supersaturated state of dissolved oxygen that was prepared during the FB generation process.
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Affiliation(s)
- Kenta Kakiuchi
- Faculty of Science and Engineering, Waseda University (TWIns), 162-8480Tokyo, Japan
| | - Tomoki Kozuka
- Department of Engineering, Graduate School of Integrated Science and Technology, Shizuoka University, 432-8561Shizuoka, Japan
| | - Nobuyuki Mase
- Department of Engineering, Graduate School of Integrated Science and Technology, Shizuoka University, 432-8561Shizuoka, Japan
- Research Institute of Green Science and Technology, Shizuoka University, 432-8561Shizuoka, Japan
| | - Takehiro Miyasaka
- Department of Human Environmental Science, Shonan Institute of Technology, 251-8511Fujisawa, Kanagawa, Japan
| | - Norikazu Harii
- Department of Community and Family Medicine, Faculty of Medicine, University of Yamanashi, 409-3898Yamanashi, Japan
| | - Shinji Takeoka
- Faculty of Science and Engineering, Waseda University (TWIns), 162-8480Tokyo, Japan
- Research Institute for Science and Engineering, Waseda University, 169-8555Tokyo, Japan
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16
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Tegladza ID, Lin G, Liu C, Gu X. Control of crystal nucleation, size and morphology using micro−/nanobubbles as green additives – a review. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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17
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Fan W, Li Y, Lyu T, Yu J, Chen Z, Jarvis P, Huo Y, Xiao D, Huo M. A modelling approach to explore the optimum bubble size for micro-nanobubble aeration. WATER RESEARCH 2023; 228:119360. [PMID: 36402060 DOI: 10.1016/j.watres.2022.119360] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 10/19/2022] [Accepted: 11/12/2022] [Indexed: 06/16/2023]
Abstract
Bubble aeration has been widely applied in water/wastewater treatment, however its low gas utilization rate results in high energy consumption. Application of micro-nanobubbles (MNB) has emerged as a process with the potential to significantly increase gas utilisation due to their high relative surface area and high gas-liquid mass transfer efficiency. In this study, we demonstrate through calibrated models that MNB of an optimum bubble size can shrink and burst at or below the water surface enabling (1) all encapsulated gas to thoroughly dissolve in water, and (2) the bursting of nanobubbles to potentially generate free radicals. Through the understanding of MNB dimensional characteristics and bubble behaviour in water, a dynamic model that integrated force balance (i.e. buoyancy force, gravity, drag force, Basset force and virtual mass force), and mass transfer was developed to describe the rising velocity and radius variation of MNB along its upward trajectory. Unlike for conventional millimetre-sized bubbles, intensive gas dissolution of MNBs led to radius reduction for small bubbles, while a large initial radius triggers bubble swelling. The initial water depth was also crucial, where greater depth could drive the potential for bubble shrinkage so that they were more liable to contract. For example, the optimum bubble size of air (42-194 μm) and oxygen (127-470 μm) MNB that could achieve complete gas transfer (100% gas utilisation) for a range of specific water depths (0.5-10 m) were calculated. The modelling results for microbubbles (10-530 μm) were well validated by the experimental data (R2>0.85). However, the validation of the modelling results for nanobubble (<1 μm) aeration requires further study due to a lack of available empirical data. In this study, the proposed model and analysis provided new insights into understanding bubble dynamics in water and offered fundamental guidance for practitioners looking to upgrade bubble aeration system.
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Affiliation(s)
- Wei Fan
- School of Environment, Northeast Normal University, 2555 Jingyue Street, Changchun 130117, China
| | - Yuhang Li
- School of Environment, Northeast Normal University, 2555 Jingyue Street, Changchun 130117, China
| | - Tao Lyu
- School of Water, Energy and Environment, Cranfield University, College Road, Cranfield, Bedfordshire MK43 0AL, United Kingdom
| | - Jia'ao Yu
- School of Environment, Northeast Normal University, 2555 Jingyue Street, Changchun 130117, China
| | - Zhen Chen
- School of Environment, Northeast Normal University, 2555 Jingyue Street, Changchun 130117, China
| | - Peter Jarvis
- School of Water, Energy and Environment, Cranfield University, College Road, Cranfield, Bedfordshire MK43 0AL, United Kingdom
| | - Yang Huo
- School of Environment, Northeast Normal University, 2555 Jingyue Street, Changchun 130117, China.
| | - Dan Xiao
- Jilin Academy of Agricultural Science, 1363 Shengtai Street, Changchun 130033, China.
| | - Mingxin Huo
- School of Environment, Northeast Normal University, 2555 Jingyue Street, Changchun 130117, China
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18
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Huang M, Nhung NTH, Wu Y, He C, Wang K, Yang S, Kurokawa H, Matsui H, Dodbiba G, Fujita T. Different nanobubbles mitigate cadmium toxicity and accumulation of rice (Oryza sativa L.) seedlings in hydroponic cultures. CHEMOSPHERE 2023; 312:137250. [PMID: 36423719 DOI: 10.1016/j.chemosphere.2022.137250] [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: 05/24/2022] [Revised: 11/11/2022] [Accepted: 11/13/2022] [Indexed: 06/16/2023]
Abstract
Cadmium (Cd) contamination can pose a severe threat to food production and human health. The accumulation of Cd in rice will decrease rice biomass, photosynthetic activity, and antioxidant capacity, affecting crop yield. The effects of different nanobubbles on the growth and Cd accumulation of rice seedlings under hydroponic conditions were investigated in this study. The results showed that the biomass, photosynthetic pigment content, and antioxidant enzyme activity of rice seedlings decreased when treated with Cd alone and that Cd induced lipid peroxidation in rice seedlings. However, when different types of nanobubbles were introduced into the nutrient solution, the bioavailability of Cd in the solution was reduced. As a result, the Cd content in rice was significantly decreased compared to treatment with Cd alone. Nanobubbles increased the biomass of rice, enhanced photosynthesis, and improved the antioxidant capacity of rice by increasing antioxidant enzyme activities to alleviate Cd-induced oxidative stress. At the same time, nanobubbles increased the Fe content in rice, which decreased the Cd content, as Cd is antagonistic to Fe. In conclusion, these results suggested that nanobubbles are a potential method of mitigating Cd stress that may help to improve rice yield and could be further explored in production.
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Affiliation(s)
- Minyi Huang
- College of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
| | - Nguyen Thi Hong Nhung
- College of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
| | - Yongxiang Wu
- College of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
| | - Chunlin He
- College of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
| | - Kaituo Wang
- College of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
| | - Shangdong Yang
- Agricultural College, Guangxi University, Nanning, 530004, China
| | - Hiromi Kurokawa
- Algae Biomass Energy System R&D Center (ABES), University of Tsukuba, Tsukuba, 305-8572, Japan
| | - Hirofumi Matsui
- Faculty of Medicine, University of Tsukuba, Tsukuba, 305-8575, Japan
| | - Gjergj Dodbiba
- Graduate School of Engineering, The University of Tokyo, Bunkyo, 113-8656, Japan
| | - Toyohisa Fujita
- College of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China.
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