Article
Engineering, Environmental
Benedict Terkula Iber, Donald Torsabo, Che Engku Noramalina Che Engku Chik, Fachrul Wahab, Siti Rozaimah Sheikh Abdullah, Hassimi Abu Hasan, Nor Azman Kasan
Summary: In this study, dry legs of giant freshwater prawn were chemically processed into chitin and chitosan for use as coagulant in the coagulation/flocculation of real aquaculture wastewater. The optimum operating conditions of chitosan dosage, pH, and settling time for removal of turbidity and colour were established using response surface methodology. The results showed that the smooth and none porous chitosan with high solubility and degree of deacetylation exhibited great potential as a good coagulant.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Polymer Science
Benedict Terkula Iber, Donald Torsabo, Che Engku Noramalina Che Engku Chik, Fachrul Wahab, Siti Rozaimah Sheikh Abdullah, Hassimi Abu Hassan, Nor Azman Kasan
Summary: The major sources of waste from aquaculture operations are fish or shellfish processing and wastewater generation. This study used a chemical method to extract chitin and chitosan from Macrobrachium rosenbergii carapace and applied them for wastewater treatment in shrimp aquaculture. The results showed that the chitosan produced had good quality and could effectively remove turbidity and salinity in the wastewater. The process conditions adopted in this study yielded chitosan of good quality, suitable as a biopolymer coagulant for aquaculture wastewater treatment.
Article
Environmental Sciences
Gustavo Lopes Muniz, Magno dos Santos Pereira, Alisson Carraro Borges
Summary: The optimization of coagulant dosage and pH for synthetic dairy wastewater was studied using full factorial design and full factorial design with center point. The results showed that the optimal conditions for removing turbidity and COD were at pH 5.0 with 50 mg L-1 of coagulant, achieving over 98% turbidity removal with PAM and above 72% COD removal, and over 95% turbidity removal with Tanfloc and above 65% COD removal. The addition of center points in the factorial design helped estimate experimental error with fewer runs and did not affect the estimates of the factorial effects.
Article
Water Resources
Lawrence Obidike, Ezekiel Madigoe
Summary: In this study, a wastewater treatment program was developed and optimized using central composite face design (CCFD) and response surface methodology (RSM) to achieve optimal removal efficiencies of 93.3% for turbidity and 23.2% for TDS under the optimal conditions for coagulant and flocculant dosage.
APPLIED WATER SCIENCE
(2021)
Article
Environmental Sciences
David Vlotman, David Key, Bradley Cerff, Bernard Jan Bladergroen
Summary: This study investigated the potential application of a wastewater treatment technology called shear enhanced flotation separation (SEFS) in treating winery wastewater. By subjecting the winery effluent to coagulation and flocculation processes in a high shear environment, significant reductions in turbidity, total suspended solids, and COD were achieved.
Article
Engineering, Chemical
O. D. Onukwuli, P. C. Nnaji, M. C. Menkiti, V. C. Anadebe, E. O. Oke, C. N. Ude, C. J. Ude, N. A. Okafor
Summary: In this study, novel Luffa cylindrica seed extracts were used for coagulation/flocculation treatment of dye-polluted wastewater. Response Surface Methodology and Artificial Neural Network models were proposed to predict the removal rates of color/total suspended particles and chemical oxygen demand using bio-coagulants, with the results showing that the ANN model was preferred for predicting the removal of CSTP and COD from the wastewater.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2021)
Article
Polymer Science
Courtney Moore, Weijue Gao, Pedram Fatehi
Summary: The study aimed to produce lignin-based flocculants for simulated wastewater by attempting radical polymerization of METAC with acid-washed and unwashed softwood kraft lignin. Results showed that lignin-METAC polymers improved water solubility and cationic charge density, and exhibited significant removal effects on COD and TOC in wastewater treatment. The use of METAC-modified lignin as a flocculant led to enhanced organic content reduction in wastewater treatment processes.
Article
Environmental Sciences
Byung Hun Park, Sehui Kim, A. Young Seo, Tai Gyu Lee
Summary: The study aimed to find the optimal conditions for removing anionic surfactants in wastewater using the coagulant-flocculant method. Through experiments, it was determined that the optimal conditions include a coagulant concentration of 5%, a flocculant concentration of 0.1%, and a pH of 10. Additionally, the study concluded that the coagulant concentration, flocculant concentration, and pH are significant independent variables affecting surfactant removal.
Article
Engineering, Chemical
Kai Cheng, Xiqing Wu, Honghu Tang, Yong Zeng
Summary: The study found that the addition of PAAS before NaOL in flotation tests significantly increased the recovery rate of fine hematite, and successfully separated fine hematite from quartz. The findings suggest that the mechanism involves the flocculation of hematite particles by PAAS, which improves floatability and inhibits the adsorption of NaOL on quartz surfaces.
MINERALS ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Wan-Chen Lee, Chih-Cheng Chang
Summary: This study investigated the use of a non-ionic polyacrylamide (NPAM) flocculant for treating swine wastewater. The optimal pH value for NPAM coagulation-flocculation was found to be 11 or higher. After adjusting the pH value and applying NPAM, high removal rates for copper ions, zinc ions, NH4+-N, total phosphate (TP), and total nitrogen (TN) were achieved. The study suggests that combining organic fertilizer production and power generation can enhance the strategy for swine wastewater treatment and contribute to the sustainable development of the pig industry.
Article
Chemistry, Multidisciplinary
Patrick Chukwudi Nnaji, Valentine Chikaodili Anadebe, Okechukwu Dominic Onukwuli, Chukwunonso Chukwuzuloke Okoye, Chiamaka Joan Ude
Summary: The effectiveness of using complex salt-Luffa cylindrica seed extract (CS-LCSE) in a coagulation/flocculation method for the treatment of textile wastewater was investigated. Models including response surface methodology (RSM), artificial neural network (ANN), and adaptive neuro-fuzzy inference system (ANFIS) were used to predict COD and CTSS removal efficiencies. The results demonstrated that the ANFIS model was more suitable for predicting COD and CTSS removal efficiency compared to the ANN and RSM models.
Article
Engineering, Environmental
Hessam Shabanizadeh, Mohsen Taghavijeloudar
Summary: In this study, pomegranate seed powder was used as a natural alternative to chemical flocculants and coagulants in the flocculation-coagulation process for industrial wastewater treatment. The performance of pomegranate seeds in treating paper recycling wastewater was optimized using response surface methodology. The findings revealed that pomegranate seeds have the potential to be a promising and effective coagulant-flocculant agent for industrial wastewater treatment.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Environmental
Yutao Zhang, Jianhai Zhao, Zhaoyang Liu, Sufeng Tian, Jingfang Lu, Rong Mu, Hongying Yuan
Summary: In this study, a magnetic magnesium hydroxide coagulant was prepared to effectively remove polyethylene microplastics from wastewater. The highest removal efficiency of microplastics reached 87.1% when the ratio of Mg2+ to OH- was 1:1.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Environmental Sciences
Mahdi Ghasemi, Maryam Hasani Zonoozi, Nazila Rezania, Motahareh Saadatpour
Summary: This study applied three artificial intelligence data-driven techniques, including artificial neural network (ANN), support vector regression (SVR), and adaptive neuro-fuzzy inference system (ANFIS), to model and predict the removal of turbidity from water using graphene oxide (GO). The results showed that ANN had the highest estimation accuracy, while SVR had the weakest prediction performance. The study suggests using RSM technique for simulating the process before modeling with ANN.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Li Feng, Xuhao Li, Zizeng Wang, Bingzhi Liu, Yuning Chen, Huaili Zheng
Summary: The study demonstrated the formation of an attractive anionic microblock structure in TPAS, which enhanced the capability of charge neutralization, electrical patching, and bridging. Conditioning hematite wastewater with TPAS containing this novel structure resulted in larger particle size and denser structure of hematite flocs, facilitating a reduction in turbidity.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Agricultural Engineering
Luguang Wang, Fei Long, Dawei Liang, Xiang Xiao, Hong Liu
Summary: The study constructed a 10-L single chamber MEC with a high electrode surface area to volume ratio and enriched electroactive cathodic biofilms for high hydrogen yield. A high hydrogen yield of 91% was achieved using lignocellulosic hydrolysate with a hydrogen production rate of 0.71 L/L/D.
BIORESOURCE TECHNOLOGY
(2021)
Article
Biophysics
Yujia Lv, Dawei Liang, Shanfu Lu, Doron Aurbach, Yan Xiang
Summary: This study demonstrates for the first time that bacteriorhodopsin is an n-type semiconductor and plays an important role in combined electrodes with p-n junction. Through photo-electrochemical methods, it was found that the self-corrosion of bR integrated Cu2O electrodes is significantly delayed, while the photocurrent of bR integrated CuSCN electrodes is enhanced by about 400%.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Microbiology
Lin Hu, Mengli Xia, Xi Gao, Yi-Xin Huo, Yu Yang
Summary: Strain BIT-GX5(T) is a novel species within the genus Cellulosimicrobium, isolated from sesame husks compost in Beijing, China. It shows unique biological characteristics and is capable of growing at higher temperatures.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2021)
Article
Microbiology
Lin Hu, Yu Yang
Summary: A new strain BIT-L3(T) belonging to a new genus and species within the family Enterobacteriaceae was isolated from the gut of plastic-eating meal-worm Tenebrio molitor L. Phylogenetic and biochemical analysis showed its uniqueness compared to other related species.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2022)
Article
Engineering, Chemical
Shujuan Meng, Rui Wang, Xianghao Meng, Ying Wang, Wenhong Fan, Dawei Liang, Meng Zhang, Yuan Liao, Chuyang Tang
Summary: This study investigated the bridging effect of divalent cations (Ca2+ and Mg2+) on polysaccharide fouling. Results showed that Ca2+ alleviated alginate fouling at high concentrations, while Mg2+ worsened membrane fouling caused by alginate compared to Ca2+ at all ion concentrations.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Ecology
Yu Yang, Lin Hu, Xiaoxi Li, Jialei Wang, Guishan Jin
Summary: Mealworms have nitrogen-fixing activity facilitated by gut microbiota, which makes them potential candidates for plastic waste up-recycling.
Article
Environmental Sciences
Jingnan Zhang, Hanghang Chang, Xiaohu Li, Baoxuan Jiang, Tao Wei, Xincheng Sun, Dawei Liang
Summary: This study demonstrates the feasibility of using cylindrical single-chamber microbial electrolysis cells (MECs) for high H-2 production rate and efficient wastewater treatment. The researchers successfully addressed the low H-2 recovery and production rate issues by adjusting the MEC components and enriching the anodic biofilms. The results showed a high H-2 production rate and a significant degradation of acetate and butyrate, indicating the potential of this technology for practical applications.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Environmental
Chao Qu, Yan-Gang Li, Shu-Juan Meng, Xiao-Hu Li, Shu-Jun Zhang, Da-Wei Liang
Summary: In this study, MnO2 was introduced into the cathodic catalyst layer for in-situ H2O2 decomposition to generate active oxidation species. The ORR-EO system with MnO2/CNTs-C/PTFE air-cathode and Ti/NATO anode successfully eliminated organic carbon in the effluent and saved energy.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Chemical
Qinghao Wu, Dawei Liang, Shanfu Lu, Haining Wang, Yan Xiang, Doron Aurbach, Eran Avraham, Izaak Cohen
Summary: This review summarizes the research progress of membrane capacitive deionization (MCDI) in capacitive deionization (CDI) technology, introduces the working mechanism and performance of integrated-MCDI, and summarizes its advantages.
Article
Engineering, Environmental
Na Zhao, Dawei Liang, Hong Liu, Shujuan Meng, Xiaohu Li
Summary: MEC converts organics from wastewater to fuel-grade hydrogen, but long-term operation is hindered by deteriorating hydrogen recovery. This study presents a novel separator-electrode assembly design to effectively block hydrogen crossover and increase hydrogen recovery, achieving high current density and hydrogen production.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Xiaotao Cheng, Mengli Xia, Yu Yang
Summary: This study reports a bacterium Acinetobacter sp. BIT-H3 isolated from the gut of plastic-eating mealworm, which showed the ability to grow on and degrade vulcanized rubber waste. The bacterium was found to penetrate the rubber and reduce its tensile strength and crosslink density. Genomic and transcriptional analysis revealed five enzymes responsible for the degradation of vulcanized rubber. These findings provide a new approach for the development of biodegradation methods for vulcanized rubber waste disposal, utilizing rubber-degrading microorganisms from insect gut.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Chemical
Yue Li, Meifeng Yu, Xianghao Meng, Wenhong Fan, Dawei Liang, Hongju Liu, Linyan Yang, Liang Shen, Qian Zhao, Shujuan Meng
Summary: The influence mechanism of coagulants Al3+ and Fe3+ on the organic foulants was studied. It was found that the addition of different concentrations of coagulants affected the process of polysaccharide aggregation to form transparent exopolymer particles. Small and amorphous particles developed at low concentration of coagulant were intercepted by the membrane, forming a dense fouling layer, while larger granular particles accumulated on the membrane surface, forming a porous fouling layer that mitigated fouling.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Bihui Niu, Ling Yang, Shujuan Meng, Dawei Liang, Hongju Liu, Linyan Yang, Liang Shen, Qian Zhao
Summary: This study used time-dependent Hermia models with forward and reverse processing to analyze the membrane fouling mechanism and structure caused by polysaccharide. Results showed different applicability of Hermia classic and mass-transfer models in cross-flow filtration, and the influence of concentration differences on polysaccharide fouling layer structure.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Review
Environmental Sciences
Jun Liu, Na Ren, Chao Qu, Shanfu Lu, Yan Xiang, Dawei Liang
Summary: This paper mainly introduces different configurations of electrochemical reactors (ECRs) for the treatment of refractory organic wastewater, and analyzes their advantages and disadvantages. Improved reactors such as 3D-ECR achieve higher mass transfer efficiency by increasing the contact area, and they also have a higher removal rate of organics and lower energy consumption. The future development of ECRs in treating refractory organic wastewater is discussed.
Review
Engineering, Environmental
Chao Qu, Da-wei Liang
Summary: Recently, electrochemical advanced oxidation processes (EAOPs) for water treatment have been implemented using cathodic oxygen reduction reaction (ORR) to generate hydrogen peroxide (H2O2). H2O2 can be activated using reagents like Fe2+ and O3 to produce hydroxyl radicals (center dot OH) for further reduction of organic compounds. This study investigates carbon-based materials as catalysts for H2O2 generation cathode and introduces the development of cutting-edge EAOPs based on H2O2 generation cathode through three case studies. The future prospects of EAOPs based on H2O2 generation cathode are discussed.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(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)
