Review
Engineering, Chemical
Ting Xiao, Zehua Zhu, Lucheng Li, Jingxin Shi, Zhenxuan Li, Xiaojun Zuo
Summary: This review analyzes and compares the membrane fouling and cleaning strategies in MF/UF and DM systems, discussing the influence of factors such as membrane pore size, material, reactor configuration, and hydrophobicity on membrane fouling. Different cleaning strategies are summarized and implications for sustainable development in water and wastewater treatment are presented. This review attempts to bridge the connections between MF/UF and DM, providing new insights for fouling control and improved efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Food Science & Technology
Fabian Ostertag, Joerg Hinrichs
Summary: The production of cream cheese, curd, high-protein yogurt, or caseinate results in a large amount of acid whey as a by-product. Currently, acid whey is often disposed as animal feed or organic fertilizer, which overlooks the potential value of its unique composition. An experimental approach involving cross-flow ultrafiltration was used to increase the concentration of biofunctional proteins in whey, specifically lactoferrin and immunoglobulin G. The resulting concentrate exhibited antimicrobial growth inhibition even higher than pure lactoferrin, indicating the potential of converting this underutilized by-product into valuable products for human nutrition.
Article
Engineering, Chemical
Yahan Ye, Qing Han, Chen Zhao, Wei Ke, Minghui Qiu, Xianfu Chen, Yiqun Fan
Summary: In this study, a negative ZrO2 tubular ceramic membrane was modified by grafting polyacrylic acid (PAA) to mitigate protein fouling. The modified membrane showed higher stable normalized flux and flux recovery ratio, indicating improved protein-resistant and easy-cleaning performance.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Melanie Faucher, Thibaud R. Geoffroy, Jacinthe Thibodeau, Sami Gaaloul, Laurent Bazinet
Summary: This study assessed the separation performance of whey protein concentrate hydrolysate through electrodialysis with ultrafiltration membranes, finding a protein recovery yield of 5.46% and containing 18 major components, including positively charged peptides and bioactive peptides related to ACE and DPP-IV. The recovered peptide fraction showed enhanced bioactivity and is suitable for large-scale production.
Article
Engineering, Chemical
Jiachen Mo, Tao Lin, Wei Liu, Zhengbin Zhang, Yong Yan
Summary: This study discussed the causes of membrane pollution and evaluated the purification effects of sodium hypochlorite, different aeration methods, and different dosages of ozone as cleaning agents on ceramic membranes. Results showed that ozone micro-nano-bubbles (O3-MNBs) had excellent cleaning efficiency, achieving a 100% flux recovery rate in a short time. O3-MNBs not only significantly improved cleaning efficiency but also reduced the negative environmental impact of chemical agents.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Jinlong Wang, Xiaobin Tang, Xiaoxiang Cheng, Jiajian Xing, Hesong Wang, Guibai Li, Heng Liang
Summary: The electrolysis method can effectively control fouling of ceramic UF membranes, soften NF concentrate, and remove organic pollutants. Moreover, crystals generated during electrolysis can form a dynamic barrier to prevent organic matter from contaminating the membrane surface.
Article
Chemistry, Applied
Wen-qiong Wang, Jian-ju Li, Ji-yang Zhou, Man-xi Song, Jia-cheng Wang, Xing Li, Cong-Cong Tang, Mao-lin Lu, Rui-xia Gu
Summary: This study reveals the mechanism of membrane fouling during ultrafiltration from the perspective of ion environment changes. The results show that changes in ion concentration and ratio can affect the structure and aggregation of whey protein.
Article
Environmental Sciences
Alejandro Caballero, Pablo Caballero, Federico Leon, Bruno Rodriguez-Morgado, Luis Martin, Juan Parrado, Jenifer Vaswani, Alejandro Ramos-Martin
Summary: The study demonstrates a new technology that converts problematic cheese whey into valuable products, achieving zero waste through membrane separation, and obtaining products with commercial utility.
Article
Biochemistry & Molecular Biology
Nancy D. Asen, Rotimi E. Aluko
Summary: This study aimed to determine the emulsification properties of protein aggregates formed from heat pretreated PPC. The results showed that heat pretreatment of PPC led to the formation of new protein aggregates, especially FT9, with enhanced emulsification properties under certain test conditions compared to unheated PPC. Additionally, emulsions stabilized by the >50 kDa proteins exhibited relatively low flocculation and coalescence index, indicating relative stability.
Article
Chemistry, Applied
Chelsey Hinnenkamp, Baraem P. Ismail
Summary: The study hydrolyzed whey protein concentrate using trypsin and Protease M, showing that Protease M preferentially hydrolyzed alpha-lactalbumin while trypsin targeted beta-lactoglobulin. The two enzymes exhibited different specificity and produced peptides with varying hydrophobicity, but shared 9 bioactive peptides.
Article
Engineering, Chemical
Weijia Gong, Feng Wang, Jinlong Wang, Mengmeng Jiang, Xiaobin Tang, Yu Tian, Heng Liang
Summary: Traditional Fenton showed good degradation performance in treating NF concentrates, but the use of acid and alkali agents posed environmental risks. By optimizing the conditions, traditional Fenton improved specific UF flux. In addition, the electro-controlled membrane coupling Fenton process was proposed, which further enhanced the treatment efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Jiaqi Ding, Haoliang Xiao, Xiaolong Huang, Yujia Zou, Zhimin Ye, Songlin Wang, Pengchao Xie, Yongsheng Chen, Jun Ma
Summary: This study proposes a novel heat-activated peroxydisulfate (heat/PDS) process for cleaning membrane fouling caused by humic acid (HA). The combination of heat and PDS can achieve almost 100% recovery of permeate flux by changing the HA structure and enhancing foulant detachment from membranes. The properties of treated membranes are characterized, and the results demonstrate the effective removal of reversible and irreversible foulants by heat/PDS cleaning. The heat/PDS method shows comparable performance to NaClO in membrane cleaning and provides high performance in removing fouling caused by different substances, suggesting its potential as an alternative for practical membrane cleaning.
CHINESE CHEMICAL LETTERS
(2023)
Article
Engineering, Chemical
Wei Zhang, Shuili Yu, Haodi Zhao, Xingli Ji, Rongsheng Ning
Summary: In this study, a laboratory-scale vacuum membrane distillation system was used to treat seawater concentrate. The effects of temperature, vacuum pressure, and ionic composition on the system performance were investigated. It was found that the presence or absence of scaling ions significantly affected the system performance. Additionally, microbubble aeration cleaning was proposed as an effective method to mitigate membrane fouling.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Agriculture, Multidisciplinary
Minghao Zhang, Haiyue Sun, Yankai Liu, Yu Wang, Chunhong Piao, Dan Cai, Yuhua Wang, Jingsheng Liu
Summary: The study showed that an appropriate concentration of PUL could enhance the interactions between WPC and PUL, improving the gel by strengthening hydrogen bonding, electrostatic interactions, and exposure of hydrophobic groups, while excessive PUL inhibited the formation of disulfide bonds. Furthermore, interactions like hydrophobic interactions, disulfide bonds, and hydrogen bonds were affected under alkaline conditions. The rheological results indicated that both PUL concentration and pH had similar effects on the storage modulus of WPC/PUL gels.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2021)
Article
Engineering, Chemical
K. S. Babu, J. K. Amamcharla
Summary: This study evaluated the influence of bulk nanobubble (BNB) incorporation during ultrafiltration (UF) process. The results showed that BNB incorporation improved the performance of UF membrane, increasing permeate flux and decreasing viscosity, while also altering the microstructure of skim milk concentrate.
JOURNAL OF FOOD ENGINEERING
(2023)
Article
Engineering, Chemical
C. Rouquie, A. Szymczyk, M. Rabiller-Baudry, H. Roberge, P. Abellan, A. Riaublanc, M. Frappart, S. Alvarez-Blanco, E. Couallier
Summary: Although membrane filtration for biorefining of microalgae has gained increasing interest, little research has been done on membrane regeneration after fouling by vegetable products. In this study, the use of NaCl solution for precleaning of membranes fouled by microalgae lipid emulsion was investigated. The results showed that NaCl can significantly reduce internal fouling and facilitate subsequent cleaning steps. This work contributes to the development of cost-effective and environmentally friendly cleaning procedures for separation processes in microalgae biorefinery.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Food Science & Technology
Carmen M. Sanchez-Arevalo, Alicia Iborra-Clar, Maria Cinta Vincent-Vela, Silvia Alvarez-Blanco
Summary: This study focused on the solid-liquid extraction of bioactive compounds from two-phase olive mill waste using ultrasound-assisted extraction. The optimal experimental conditions resulted in a recovery of over 6.8 mg/g of bioactive content, which was later purified by ultrafiltration. The research not only added value to the waste, but also reduced its organic load and phytotoxicity, thus protecting the ecosystem of the disposal area.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Chemical
Magdalena Cifuentes-Cabezas, Carmen Maria Sanchez-Arevalo, Jose Antonio Mendoza- Roca, Maria Cinta Vincent-Vela, Silvia Alvarez-Blanco
Summary: An adsorption/desorption process using Purolite non-ionic resins was investigated to recover phenolic compounds from agroindustry wastewater. The optimal resin concentration and desorption solvent for maximum recovery were determined, and the adsorption mechanisms were characterized using kinetic and isotherm models. The MN200 resin was found to be the most effective adsorbent, achieving a 91% recovery of phenolic compounds.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
Magdalena Cifuentes-Cabezas, Claudia F. Galinha, Joao G. Crespo, Maria Cinta Vincent-Vela, Jose Antonio Mendoza-Roca, Silvia Alvarez-Blanco
Summary: The presented work aims to solve the problem of large volumes of oil mill wastewater and proposes nanofiltration as a possible second stage treatment. Different membranes were tested and it was found that the NF270 membrane under specific conditions showed the best concentration of phenolic compounds with high permeate flux and low fouling. Furthermore, spectroscopic techniques were used to study membrane fouling and effectiveness of cleaning protocols.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Carmen M. Sanchez-Arevalo, Tim Croes, Bart Van der Bruggen, Maria Cinta Vincent-Vela, Silvia Alvarez-Blanco
Summary: Organic-solvent nanofiltration (OSN) has been used to purify and fractionate phenolic compounds in wet olive pomace. Nine commercial OSN membranes were tested, and DuraMem (R) 500, NFX, and NF270 membranes showed satisfactory permeate flux values. Contact angle measurements and AFM analysis provided insight into the interaction between the ethanol/water solution and the membranes. Liquid chromatography coupled to mass spectrometry and/or refractive index detector confirmed low rejection of the target phenolic compounds (less than 10% for hydroxytyrosol) and high rejection of undesired compounds.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Magdalena Cifuentes-Cabezas, Jose Antonio Mendoza-Roca, Maria Cinta Vincent-Vela, Silvia Alvarez-Blanco
Summary: This study focuses on the valorization of concentrates obtained from membrane processes for the purification of olive oil washing wastewater. The combination of adsorption/desorption process and biological treatment successfully recovered phenolic compounds and eliminated organic matter, providing a solution for circular economy in olive oil processing wastewater treatment.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Biochemistry & Molecular Biology
Carmen M. Sanchez-Arevalo, Ane Perez Garcia-Serrano, Maria Cinta Vincent-Vela, Silvia Alvarez-Blanco
Summary: Despite concerns about the environmental impact of wet olive pomace, it actually contains valuable phenolic compounds that can be recovered. This study proposes an integrated process involving ultrasound-assisted extraction, followed by filtration. Different commercial membranes were tested, and satisfactory results were obtained with the UP005 membrane, which provided efficient purification and high permeate flux. Finally, a nanofiltration process using the NF270 membrane achieved the concentration of the purified polyphenols.
Article
Food Science & Technology
Magdalena Cifuentes-Cabezas, Jose Luis Bohorquez-Zurita, Sandra Gil-Herrero, Maria Cinta Vincent-Vela, Jose Antonio Mendoza-Roca, Silvia Alvarez-Blanco
Summary: This study focused on the effect of transmembrane pressure and cross flow velocity on the permeate flux of different ultrafiltration membranes for the treatment of olive mill wastewater. Semi-empirical models, statistical methods, and machine learning techniques were used. The series resistance model and combined model accurately represented the experimental data, indicating the contributions of cake layer formation and pore blockage to membrane fouling. Inorganic membranes showed a higher tendency for irreversible fouling. Response surface methodology and artificial neural networks were effective in analyzing the significant variables and their impacts. The study provides a better understanding of the data modeling of different ultrafiltration membranes for olive mill wastewater treatment.
FOOD AND BIOPROCESS TECHNOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Magdalena Cifuentes-Cabezas, Alessio Pavani, Maria Cinta Vincent-Vela, Jose Antonio Mendoza-Roca, Silvia Alvarez-Blanco
Summary: The olive industry generates a large volume of oil mill wastewater (OMW) and table olive wastewater (TOW), which have high concentrations of organic matter, phenolic compounds, and conductivity. Proper management of these wastewaters is crucial due to their toxic impacts on the environment. Forward osmosis (FO) process was tested to concentrate phenolic compounds for recovery, and two membranes (OsmoF2OTM and HFFO.6) were evaluated. Both membranes demonstrated effective concentration of phenolic compounds with acceptable volume reduction. FO shows promise for concentrating phenolic compounds from OOWW and diluting FTOP simultaneously.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Food Science & Technology
Carmen M. Sanchez-Arevalo, Alicia Iborra-Clar, Maria Cinta Vincent-Vela, Silvia Alvarez-Blanco
Summary: Wet olive pomace can be used as a valuable source of phenolic compounds, which can be efficiently extracted using ethanol/water. Different ultrafiltration membranes were tested to purify the phenolic compounds in the extracts, and UF010104 membrane showed the highest permeate flux and rejection of organic matter, achieving the purification of the phenolic compounds in the permeate stream.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Magdalena Cifuentes-Cabezas, Silvia Alvarez-Blanco, Jose Antonio Mendoza-Roca, Maria Cinta Vincent-Vela, Jose M. Gozalvez-Zafrilla
Summary: Understanding the dynamics of agent interaction is crucial for the operation and design of industrial wastewater management processes. This study developed a theoretical model to predict water flux in two different membranes using a sodium chloride solution as the draw solution. The model considered the contribution of organic compounds to osmotic pressure, as well as the membrane characteristics and module geometry. The results showed variations in flux prediction based on the membrane type, feed solution, and draw solution, with a greater influence of phenolic compounds observed in the cellulose triacetate membrane.
Article
Biotechnology & Applied Microbiology
Magdalena Cifuentes-Cabezas, Maria Cinta Vincent-Velaa, Jose Antonio Mendoza-Roca, Silvia Alvarez-Blanco
Summary: Olive oil production generates wastewater containing phenolic compounds with antioxidant characteristics. Ultrafiltration treatment effectively removes color, turbidity, and organic pollutants from the wastewater, while having little impact on the recovery of phenolic compounds.
FOOD AND BIOPRODUCTS PROCESSING
(2022)
Article
Engineering, Chemical
Yunfei Yu, Xue Yang, Chenchen Zhang, Jie Chen, Wei Lin, Jianqiang Meng
Summary: This study reports an environmentally friendly and simple approach for preparing double-network (DN) ion gel membranes with high strength and excellent gas separation performance. By optimizing crosslinking density, mass ratio, and the type and content of free ionic liquid, the mechanical and gas separation properties of the DN membrane are improved.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Si-qi Jiang, Qiang Gao, Xi-guang Li, Chao-zhu Deng, Jun Qiu, Xiang-nan Zhu
Summary: A dual-strengthening pretreatment method is proposed to remove PVDF more efficiently and enhance the leaching of LiCoO2. Experimental results show that dual-strengthening pretreatment can effectively remove PVDF and significantly improve the leaching efficiency compared to single pretreatment methods.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Zengchi Hu, Xiaoyu Wang, Xiaohui Zhang, Xue Li, Jiangbin Xia
Summary: The rapid fabrication of high-performance composite membranes based on CMPs using simple and low-cost methods is challenging. In this study, three CMPs-based composite membranes were rapidly fabricated with adjustable size using unidirectional diffusion synthesis. The microstructural design enhanced the rejection rates of the membranes and they showed strong hydrolytic resistance, thermal stability, and acid-base resistance. Electrostatic adsorption and the adjustable microstructures significantly varied the repellence of the membranes to different charged molecules.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Farzaneh Rouhani, Matineh Ayedi, Nasser Safari
Summary: Introducing defects into porous metal-organic frameworks is important for improving their adsorption performance. Quasi-MOFs, an underutilized variant of large-scale, fundamentally deficient MOFs, have been found to have substantial amounts of unsaturated metal sites to offset the drawbacks of MOFs. In this study, a quasi-MOF was produced using a water-stable MOF and demonstrated significantly improved phosphate adsorption capability due to the presence of defect sites.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Valentin Reungoat, Morad Chadni, Louis M. M. Mouterde, Fanny Brunissen, Florent Allais, Helene Ducatel, Irina Ioannou
Summary: This study focuses on the recovery of sinapic acid using liquid-liquid extraction assisted by a hollow fiber membrane contactor from an aqueous feed obtained through the hydrolysis of mustard bran. The screening of solvents of different chemical nature showed that all tested solvents had an extraction efficiency of more than 80% for pH < 5. Four solvents were selected for use in the hollow fiber membrane contactor, and the volatile solvents showed higher mass transfer coefficients compared to non-volatile solvents. The extraction efficiency was intensified by increasing the initial concentration of sinapic acid and the feed-to-solvent ratio. CPME was found to have optimal recovery efficiency at a phase ratio of 8:1, yielding 0.9 g of sinapic acid per liter of CPME used.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Takahiro Sakamoto, Takafumi Hanada, Hayate Sato, Mayu Kamisono, Masahiro Goto
Summary: The emergence of the battery society has led to a high demand for battery metals, resulting in a strain on their supply. This study introduces a novel technique using a hydrophobic deep eutectic solvent (DES) for leaching and recovering battery metals from low-grade nickel laterite ores. The DES enables selective leaching and recovery of the metals, offering a promising pathway for the extraction of critical battery metals.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Rongrong He, Jiarui Chen, Chunyao Zhang, Dan Lu, Lin Zhang, Tao He
Summary: Researcher has developed a method to quantify the charge density in nanofiltration (NF) membrane separation layer and applied it in NF membranes that can separate Mg2+ and Li+. The results showed that overcompensated amine groups played a major role, and there was a linear relationship between charge density and coating bi-layers or PAH layers.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Zhijian Zhang, Min Chen, Zhe Lin, Zhichao Yang, Yafeng Du, Zhihui Chen, Zhenhao Yang, Kongyin Zhao, Ligang Lin
Summary: Membrane technology plays an important role in molecular/ion separation processes, but faces challenges such as membrane fouling. This study introduces a new ion-crosslinking method to fabricate copper alginate hydrogel membranes with improved mechanical strength and antimicrobial capabilities. The membranes exhibit excellent separation performance and enhanced long-term molecule/ion separation through improved anti-swelling properties. Molecular dynamics simulations and life cycle analysis highlight the pore structure and environmental friendliness of the hydrogel membranes. These findings provide valuable insights for developing sustainable hydrogel membranes with stable performance and high separation efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Dongmei Liu, Aiying Guo, Yanling Qi, Zhixin Ji, Hongjuan Li, Zhiwei Zhang, Xinyue Zhang, Kunze Wu, Aijun Cai
Summary: In this study, a stable magnetic Mg/Mn-layered double oxide-doped biochar composite (MgMnLDO-MBC) was prepared and successfully used for the removal of antibiotics and bacteria from wastewater. The composite exhibited enhanced surface areas, adsorption sites, and free radicals, leading to improved catalytic activity. The effects of different factors on the removal efficiency were evaluated, and the composite showed good reusability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Feng Wang, Zhaoyong Bian, Yaru Zhang, Wenchao Yu, Qiang Zhang, Hui Wang
Summary: In this study, a nanofibrous layered structure of Ff-Ti3C2Tx-Co3O4 was prepared by self-assembling nanofibrous Co3O4 with lamellar fluorine-free MXene (Ff-Ti3C2Tx). The Ff-Ti3C2Tx-Co3O4 exhibited excellent catalytic activity for degradation, resistant to ionic interference, and maintained high removal efficiency of sulfamethoxazole (SMX) in municipal wastewater. The rapid SMX degradation involved fast electron transfer in redox cycles with PMS and the generation of 1O2 via PMS ->center dot O2 -> 1O2. This work provides new insights into antibiotic degradation mechanisms and electron transfer based on PMS activation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Weipeng He, Jiacheng Luo, Yujie Wu, Tianhao Luo, Chen Tang
Summary: This study comparatively evaluated the role of cationic, anionic, and nonionic polyacrylamides (PAMs) in ballasted flocculation of clay suspensions under different aluminum sulfate (AS) coagulant dosages. The selection of PAMs and AS dosage had a significant influence on the size and shear resistance of ballasted floc aggregates.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Lixian Wang, Lizhi Zhao, Didi Si, Zhixin Li, Huiqin An, Hui Ye, Qingping Xin, Hong Li, Yuzhong Zhang
Summary: Metalloporphyrin-based nanozymes integrated with poly (vinylidene fluoride) membrane show high catalytic activity and reusability for the decolorization of Congo Red dye in continuous flow process.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Yongfei Ma, Chenyu Zeng, Yongzhen Ding, Jiayi Tang, Ondrej Masek, Zhikang Deng, Rui Mu, Zulin Zhang
Summary: In this study, sludge-derived biochar (SBC) was functionalized with various iron salts to enhance its adsorption ability for sulfamethoxazole (SMX) and magnetic collection performance. Ball milling was further employed to treat the optimal iron salt functionalized SBC (MSBC), resulting in ball milled SBC (BMSBC) with improved adsorption performance for SMX. The dominant driving mechanism for SMX adsorption onto BMSBC was confirmed to be multiple physicochemical forces, including 7C-7C conjugation, pore filling, H-bonding, Fe-O complexation, and electrostatic interactions. BMSBC exhibited favorable adsorption ability for SMX in actual waters and could be easily collected within 1 min due to its magnetic sensitivity.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Jinglin Tan, Xiaohui Mao, Wenjihao Hu, Hongbo Zeng
Summary: This study investigates the influence of PDMS chain architectures on surface properties and reveals that PDMS coatings with looped structures exhibit superior hydrophobicity, self-cleaning, and water sliding compared to coatings with linear structures. Additionally, both looped and linear PDMS coated stainless steel mesh/polyester fibers show efficient separation of oil/water mixture.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Wei-Liang Chen, Chih-Chia Cheng, Chien-Hsing Lu, Jem-Kun Chen
Summary: This study designs a novel sandwich-structured capacitor that reduces the absorption time of pollutants using dielectrophoresis force. By coating graphene oxide on polystyrene microspheres as adsorbents and encapsulating them within the capacitor, the adsorption rate is significantly enhanced. Additionally, frequency manipulation allows for the recycling of adsorbents and concentration of dyes, minimizing secondary pollution.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
