Article
Energy & Fuels
Mikhail S. Turbakov, Evgenii Kozhevnikov, Evgenii P. Riabokon, Evgeniy A. Gladkikh, Vladimir V. Poplygin, Mikhail A. Guzev, Hongwen Jing
Summary: Permeability prediction is crucial in hydrocarbon production. This study analyzed well test data to develop a model for the initial period of oil production in slightly clayey terrigenous reservoirs, with coreflooding experiments confirming its accuracy. The decrease in permeability in the initial production period was found to be mainly due to the migration of natural colloids in slightly clayey rocks.
Article
Engineering, Environmental
Xu Zhao, Shuai Dong, Hongqiang Wang, Eming Hu, Fang Hu, Zhiwu Lei, Qingliang Wang, Chunze Zhou, Shiyao Fan, Xinwei Liu, Xuanzhang Hao, Yucheng Su
Summary: This study designed porous calcium carbonate biochar (CC-LBC) for wastewater treatment in beryllium production, and investigated the adsorption effect of CC-LBC on Be(II) at different concentrations. Results showed that CC-LBC exhibited a high adsorption capacity for Be(II) due to its loose and porous structure. Moreover, CC-LBC showed a better selective adsorption performance for beryllium in the binary system.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Yoshitsugu Kojima, Masakuni Yamaguchi, Haruo Sawa, Katsuhide Kikuchi, Noriyuki Hiramitsu, Masahiko Kimbara, Haruyuki Nakanishi, Yasuhiro Takahashi
Summary: The capacitances of porous carbon anodes were determined using a Ni(OH)(2) cathode. The capacitances were found to be 300-700 F g(-1), which is over 3 times higher than those of carbon anodes prepared by electrical double layer formation, indicating the larger capacitances achieved through protium H adsorption in the presence of highly concentrated KOH solution.
CHEMICAL COMMUNICATIONS
(2022)
Article
Environmental Sciences
Chongyang Shen, Muhammad Emdadul Haque, Dengjun Wang, Wenjuan Zheng, Yaru Yin, Yuanfang Huang
Summary: The study found that CdSeS/ZnS alloyed quantum dots nanoparticles (QDNPs) in sand porous media exhibit reversible adsorption under different ionic strengths, with more evident release at lower ionic strengths. Kinetic experiments showed that QDNPs followed first- and second-order kinetic interactions at low and high ionic strengths, respectively. These findings suggest that the conventional colloid filtration theory may not be suitable for describing QDNP adsorption behavior.
JOURNAL OF CONTAMINANT HYDROLOGY
(2021)
Article
Biochemistry & Molecular Biology
Yuhui Wu, Zhengyu Li, Yuesuo Yang, Diane Purchase, Ying Lu, Zhenxue Dai
Summary: The study shows that EPS has a good adsorption capacity for Cu2+ and Cd2+, promoting the migration of these heavy metals in subsurface porous media. Under the experimental conditions, EPS showed a greater affinity for Cu2+ than for Cd2+, and saturating the sand media can significantly enhance the migration of these metals.
Article
Construction & Building Technology
Roman Ligotski, Kai-Daniel Gilles, Mats Roehnert, Uta Sager, Christof Asbach, Frank Schmidt
Summary: Gas-phase adsorptive purification is becoming increasingly important in heating, ventilation, and air conditioning (HVAC) systems due to the health risks posed by Volatile Organic Compounds (VOC). Utilizing pleated flat sheet filter media for adsorptive filters in ventilation systems can help reduce the accumulation of VOC in buildings. Adjusting relative humidity and challenge gases can improve the desorption efficiency of filters, ultimately extending their service life.
BUILDING AND ENVIRONMENT
(2021)
Article
Environmental Sciences
T. Russell, O. Yu Dinariev, L. A. Pessoa Rego, P. Bedrikovetsky
Summary: The study investigates the stochastic distribution of particle velocities in particle flow, proposing a BGK-form of Boltzmann's equation for particulate flow. It explains the observed delay in particle velocity in laboratory studies and explicitly expresses the model coefficients for physical processes and their effects.
WATER RESOURCES RESEARCH
(2021)
Article
Chemistry, Physical
Dian Fan, Emily Chapman, Aisha Khan, Francesco Iacoviello, Gediminas Mikutis, Ronny Pini, Alberto Striolo
Summary: In this study, the transport behavior of suspended colloids in heterogeneous porous media is investigated through core-flooding experiments and computational simulations. It is found that the observed anomalous transport is particle-type dependent and arises from the microscopic dispersion and deposition of particles in heterogeneous flow fields. The study also presents a residence-time distribution function that captures the entire transition from pre-asymptotic to asymptotic behavior, providing valuable insights for interpreting experimental data and designing colloidal tracers.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Mechanics
Manish Kumar, Jeffrey S. Guasto, Arezoo M. Ardekani
Summary: Complex and active fluids in flows through porous materials have broad applications and can exhibit surprising flow patterns and transport properties due to the coupling with porous microstructure. Recent studies have investigated how pore-scale geometry influences the flow topology and transport properties at the sample scale. Active colloids and swimming cells present unique challenges in understanding their mechanics and transport in porous media flows.
JOURNAL OF RHEOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Luyao Wang, Nannan Xue, Yimin Zhang, Qiushi Zheng
Summary: In this study, a aminophosphonic acid chelating resin was used for the selective adsorption and desorption of vanadium, iron, and aluminum ions from the acid leaching solution of polymetallic black shale. The results showed successful separation and concentration of vanadium ions with high adsorption efficiency and increased concentration ratios. The selective desorption process achieved selective separation and concentration of vanadium ions.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2022)
Article
Chemistry, Physical
Siddharth Sambamoorthy, Henry C. W. Chu
Summary: Recent experiments have demonstrated and measured colloid diffusiophoresis in porous media, but existing theories cannot predict the observed colloid motion. In this study, a mathematical model is developed using regular perturbation method to predict the diffusiophoretic motion of charged colloidal particles in a porous medium driven by a concentration gradient of binary monovalent electrolyte. The model successfully matches experimental measurements and highlights its predictive power.
Article
Multidisciplinary Sciences
Satish K. Nune, Quin R. S. Miller, H. Todd Schaef, Tengyue Jian, Miao Song, Dongsheng Li, B. Peter McGrail, Vaithiyalingam Shuttanandan
Summary: Injecting fluids into deep underground geologic structures is crucial for managing greenhouse gas emissions and facilitating energy extraction operations. Recent research has shown that metal-organic frameworks can be used as low-frequency absorptive-acoustic metamaterials injected into the subsurface to enhance geophysical monitoring tools. This study found that the surface characteristics of nanoparticles play a critical role in their colloidal stability and transport.
SCIENTIFIC REPORTS
(2022)
Article
Environmental Sciences
Yi Huang, Dan Zhou, Li Wang, Ganghui Jiao, Hang Gou, Zijing Li, Guanru Zhang
Summary: The geochemical cycling of vanadium (V) in mining areas has been a popular topic, but the effects of tailing colloids on the fate and transport of vanadium in tailing reservoirs have been overlooked. This study investigated the interactions between tailing colloids and vanadium in vanadium-titanium magnetite tailings. The results showed that vanadium was mainly in the residual state in the tailings and its adsorption to the tailing colloid was primarily through electrostatic attraction and surface complexation. The mobility of tailing colloids and vanadium in the porous media demonstrated potential pollution pathways that need attention.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Mathematics, Applied
Thomas Russell, Pavel Bedrikovetsky
Summary: We discuss the transport of three-dimensional suspension-colloidal-nano particles in anisotropic porous media. By solving the Boltzmann kinetic equation, we capture the stochastic nature of particle velocity distribution due to the random pore-space geometry. The anisotropy is expressed using tensorial micro-scale transport coefficients and a direction-dependent velocity distribution. The homogenized macro-scale model, obtained through probabilistic homogenization, is a three-dimensional advective-diffusive-reactive equation, where the particle flow is slower than the carrier fluid speed in all directions. We also derive the upscaled equation for quasi-one-dimensional flow and study colloidal injections.
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS
(2023)
Article
Chemistry, Multidisciplinary
Yeongkyun Son, Tae-Hyun Kim, Daekeun Kim, Yuhoon Hwang
Summary: By compounding alginate biopolymer with a porous clay heterostructure, an improved adsorbent for volatile organic compounds was successfully prepared. Through optimization, Alg-PCH demonstrated enhanced thermal stability and adsorption capacity.
Review
Environmental Sciences
Wen-yan He, Kun-peng Wang, Jin-yan Yang
TOXICOLOGICAL AND ENVIRONMENTAL CHEMISTRY
(2018)
Article
Environmental Sciences
Mei Wang, Jin-yan Yang, Wen-yan He, Jin-xin Li, Yan-yuan Zhu, Xiao-e Yang
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2019)
Article
Environmental Sciences
Wen-yan He, Xiao-e Yang, Jin-yan Yang, Zhen-li He
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2018)
Article
Environmental Sciences
Mei Wang, Xiang Li, Wen-yan He, Jin-xin Li, Yan-yuan Zhu, Yu-Liang Liao, Jin-yan Yang, Xiao-e Yang
ENVIRONMENTAL POLLUTION
(2019)
Article
Engineering, Environmental
Wen-yan He, Wei Liao, Jin-yan Yang, Paramsothy Jeyakumar, Christopher Anderson
BIOREMEDIATION JOURNAL
(2020)
Article
Green & Sustainable Science & Technology
Wen-yan He, Jin-yan Yang, Jia Li, Ying-wei Ai, Jin-xin Li
JOURNAL OF CLEANER PRODUCTION
(2020)
Article
Multidisciplinary Sciences
Wenyan He, Fei Li, Jiang Yu, Min Chen, Yun Deng, Jia Li, Xiliang Tang, Zhuoyu Chen, Zhongluan Yan
Summary: The study showed that TE pollution in soil posed higher ecological risks compared to sediment, with ingestion being the main pathway for human health risks. By developing an improved method, the research analyzed the comprehensive environmental risk of different seasons in the lower reach of the Jinsha River, revealing higher risks in the wet season.
SCIENTIFIC REPORTS
(2021)
Review
Environmental Sciences
Xin-Yue Zhao, Jin-Yan Yang, Ning Ning, Zhi-Shan Yang
Summary: Attention should be given to the management of fly ash containing toxic heavy metals generated from municipal solid waste incineration. Chemical stabilization is a practical and cost-effective treatment technology for heavy metals in fly ash, with potential for broad application and resource utilization.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)