Article
Mathematics, Interdisciplinary Applications
D. Sun
Summary: The migration of particles in slurry is constrained in porous media, leading to changes in the structure and topology of the media and affecting the fluid dynamics of both fluid and particles. Clogging issues, primarily determined by the size ratio between pore throat openings and particle diameters, reduce flow and permeability. Numerical simulation is used to study the transport and clogging of particles in microscale porous media, focusing on the effects of particle volume fraction and Stokes number on clogging, as well as the permeability of the media.
COMPUTATIONAL PARTICLE MECHANICS
(2023)
Article
Environmental Sciences
Chaomeng Dai, Hui Shen, Yanping Duan, Xueji You, Xiaoying Lai, Shuguang Liu, Yalei Zhang, Leong Kah Hon, Kitae Baek, Yaojen Tu, Lang Zhou, Di Xu
Summary: The study found that the presence of anionic surfactant SDBS increased the stability and reduced aggregate size of nTiO(2) and nCeO(2), resulting in higher concentrations in effluents. Conversely, the cationic surfactant CTAB decreased the transportability of NPs due to positive charge attachment, causing NP deposition. Tween-80 had no significant impact on the stability and mobility of the nanoparticles. The results have implications for assessing and remediating NP pollution in subsurface environments.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Review
Chemistry, Multidisciplinary
Hongjuan Bai, Junhang Chen, Yumu Hu, Gang Wang, Wenju Liu, Edvina Lamy
Summary: Considerable efforts have been made to investigate the transport and retention of biocolloids in porous media in order to protect surface and groundwater supplies from contamination and assess the risk of microbial groundwater contamination. This review provides an introductory overview of biocolloid transport and deposition in porous media, discussing the mechanisms, modeling, influencing factors, major findings, and research methods used in this field. It also suggests future research perspectives focusing on microscopic pore scale study.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Shunan Dong, Jihong Xia, Liting Sheng, Weimu Wang, Hui Liu, Bin Gao
Summary: This study elucidated the transport characteristics of fragmental PET microplastics in porous media through column experiments, showing that both environmental factors and basic properties play important roles in controlling the retention and transport of PET microplastics. The combined impact of electrolytes, pH, and humic acid on PET microplastic transport was also highlighted, with environmental conditions having a stronger effect on transport behaviors in porous media than experimental chemical conditions. Furthermore, numerical modeling was used to depict the retention and transport of PET microplastics in porous media, providing insights into the environmental fate and risk of microplastics in underground soil and water systems.
Article
Environmental Sciences
Dan Sun
Summary: Particle motion in porous media is crucial for particle separation, and can be predicted by simulating particle movement and studying the pressure and flow field. Increasing fluid velocity can enhance particle separation efficiency.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Multidisciplinary Sciences
Nicolas Waisbord, Amin Dehkharghani, Jeffrey S. Guasto
Summary: Through microfluidic experiments, it was found that individual magnetotactic bacteria display three distinct regimes when directed upstream through pores, resembling the electrical conductivity of a diode. This diode-like behavior persists at the pore scale, impacting flow conductivity in higher dimensional geometries. The study has implications for magnetotactic bacteria survival strategies in sediments and potential drug delivery applications in vascular networks.
NATURE COMMUNICATIONS
(2021)
Article
Mechanics
Ofer Manor
Summary: The study focuses on calculating steady acoustic flow in porous media and explaining its contribution to mass transport. Various cases of steady acoustic flow are analyzed for different scales, and different methods of handling acoustic flow under different conditions are discussed.
JOURNAL OF FLUID MECHANICS
(2021)
Article
Mechanics
Daniel W. Carlson, Kazumi Toda-Peters, Amy Q. Shen, Simon J. Haward
Summary: This study investigates the phenomenon of elastic turbulence and its effects on the flow state of polymer chains and flow fields. By conducting experimental observations and analysis on the flow in a three-dimensional ordered porous medium, it is found that elastic turbulence can be triggered when specific parameters exceed a critical value. In the state of elastic turbulence, polymer chains are influenced by the curvature of the flow streamline, leading to flow instability.
JOURNAL OF FLUID MECHANICS
(2022)
Article
Polymer Science
Zhenyu Zhang, Xiangdong Liu, Yan Zhou, Xinxin Tian, Yinglu Sun, Biru Shi, Jiahui Zhong, Yuming Yang
Summary: Passive cooling technology is a hot research topic as it can achieve cooling without external energy input, reduce cooling costs, and mitigate global warming. However, most passive cooling materials lack gas barrier performance, limiting their application in inflatable structures. This paper presents the development of PXTPU composites, which have both passive cooling and gas barrier performance, showing great potential in expanding the application field of passive cooling technology, particularly in inflatable structures for outdoor work.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Water Resources
Shujie Tu, Xiaoming Liu, Hongjiang Cai, Zexi Yang
Summary: Based on a classical one-dimensional particle transport model, a three-dimensional particle transport model considering sieving and adsorption effects was established. General solutions for particle transport in saturated semi-infinite porous media under one-dimensional seepage and three-dimensional dispersion conditions were derived using Laplace and Fourier transforms. An analytical expression for circular surface source injection was obtained, and the analytical solution was verified using numerical simulation solvers. The influence of parameters on the particle transport process was analyzed, showing that hydrodynamic dispersion, sieving, and adsorption had significant effects on particle transport.
ADVANCES IN WATER RESOURCES
(2023)
Article
Mechanics
L. C. Auton, S. Pramanik, M. P. Dalwadi, C. W. MacMinn, I. M. Griffiths
Summary: The study explores the link between microstructure and macroscale flow and transport through the use of homogenisation theory with idealised microstructures. The research focuses on the impact of obstacle size and spacing on macroscopic properties and provides insights for designing filters or studying transport impacts in soft porous media.
JOURNAL OF FLUID MECHANICS
(2021)
Article
Physics, Applied
Elham Sharafedini, Hossein Hamzehpour, Mohammad Alidoust
Summary: In this study, a simple parametric formula for charge conductance of nonmagnetic two-phase porous and random alloys was obtained. The formula exhibits remarkable agreement in describing system response and can be used to guide experiments.
APPLIED PHYSICS LETTERS
(2023)
Article
Environmental Sciences
Mingzhi Zhang, Jun Hou, Jun Wu, Lingzhan Miao, Yuan Zeng
Summary: This research examined the adsorption, transport, long-term release, and particle fracture of polystyrene nanoplastics (PS-NPs) in saturated porous media. The concentration and particle size of the media affected the adsorption and transport of PS-NPs. The input concentration could be predicted by the DLVO theory, while the particle size mainly influenced filtration. Increasing flow rate enhanced PS-NPs transport. PS-NPs could be broken down into smaller particles during long-term release, with higher fracture in medium quartz sand. These findings provide fundamental information for understanding the transport laws of nanoplastics in porous media.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Polymer Science
Xucong Chen, Xue Li, Huijuan Zhang, Hong Li, Guiyou Wang, Yan Cui
Summary: In this study, the relationship between the diisocyanate structure and the protective properties of polyurethanes (PUs) was investigated. It was found that the diisocyanate structure had a significant influence on the adsorption and permeation behaviors of the PUs. The alicyclic PU showed the lowest adsorption and retention capacity, making it a potential candidate for protective topcoat PU material.
Article
Materials Science, Ceramics
Junjie Yang, Haosheng Ju, Xiaoyan Zhang, Jinlong Yang
Summary: A novel method for hierarchically porous TiO2 ceramics with designable pores has been proposed, utilizing direct ink writing of printable particle-stabilized foams. By adjusting powder composition, sintering temperature, and solid loading, both open and closed pore structures can be well controlled. The prepared porous TiO2 ceramics exhibit homogeneous pores, high porosity (81.76%), low bulk density (0.78 g/cm3), and high compressive strength (11.8 MPa), making them suitable for applications in various fields.
CERAMICS INTERNATIONAL
(2023)
Article
Environmental Sciences
Santhi C. Jagupilla, Mahmoud Wazne, Deok Hyun Moon
Article
Environmental Sciences
Rawaa Ammar, Veronique Kazpard, Mahmoud Wazne, Antoine G. El Samrani, Nabil Amacha, Zeinab Saad, Lei Chou
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2015)
Article
Environmental Sciences
Deok Hyun Moon, Mahmoud Wazne, Kyung Hoon Cheong, Yoon-Young Chang, Kitae Baek, Yong Sik Ok, Jeong-Hun Park
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2015)
Article
Environmental Sciences
Mahmoud Wazne, Samira Korfali
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2016)
Article
Environmental Sciences
Rawaa Ammar, Hussein Jaafar Kanbar, Veronique Kazpard, Mahmoud Wazne, Antoine G. El Samrani, Nabil Amacha, Zeinab Saad, Lei Chou
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2016)
Article
Engineering, Environmental
Nathalie Sleiman, Veronique Deluchat, Mahmoud Wazne, Martine Mallet, Alexandra Courtin-Nomade, Veronique Kazpard, Michel Baudu
Article
Chemistry, Multidisciplinary
Nathalie Sleiman, Veronique Deluchat, Mahmoud Wazne, Alexandra Courtin, Zeinab Saad, Veronique Kazpard, Michel Baudu
Article
Engineering, Chemical
Antonis Karachalios, Mahmoud Wazne
DESALINATION AND WATER TREATMENT
(2015)
Article
Environmental Sciences
Deok Hyun Moon, Mahmoud Wazne, Dimitris Dermatas, Adriana M. Sanchez, Kyung Hoon Cheong, Jeong-Hun Park
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2015)
Article
Biotechnology & Applied Microbiology
Ru Xiao, Mahmoud Wazne
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2013)
Article
Biotechnology & Applied Microbiology
Antonis Karachalios, Mahmoud Wazne
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2013)
Article
Chemistry, Physical
Nathalie Sleiman, Veronique Deluchat, Mahmoud Wazne, Martine Mallet, Alexandra Courtin-Nomade, Veronique Kazpard, Michel Baudu
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2017)
Proceedings Paper
Engineering, Environmental
D. G. Grubb, S. C. Jagupilla, M. Wazne
Geo-Chicago 2016: Sustainable Waste Management and Remediation
(2016)
Proceedings Paper
Engineering, Environmental
D. G. Grubb, S. C. Jagupilla, M. Wazne
GEO-CHICAGO 2016: SUSTAINABLE WASTE MANAGEMENT AND REMEDIATION
(2016)
Article
Engineering, Environmental
Dennis G. Grubb, Santhi C. Jagupilla, Reed Cummings, Mahmoud Wazne
JOURNAL OF HAZARDOUS TOXIC AND RADIOACTIVE WASTE
(2014)