Article
Environmental Sciences
Sonia Ullucci, Luca Menaballi, Sabrina Di Giorgi, Mara Luini, Cristian Riva, Christian Schlitt, Emilio Clementi, Giovanna Azimonti
Summary: In this article, the authors calculated the predicted environmental concentration in groundwater (PECGW) for different combinations of active substance parameters and created a classification system to minimize input uncertainty. While this approach has scientific viability, it may not be suitable for regulatory purposes. However, it could be used as a screening or preliminary assessment for pesticide monitoring programs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Gordana Mendas, Tijana Milicevic, Sanja Fingler, Vlasta Drevenkar, Snjezana Herceg Romanic, Aleksandar Popovic, Dubravka Relic
Summary: This study assessed the health risks associated with terbuthylazine and endocrine-disrupting herbicides atrazine, acetochlor, and metolachlor in various water sources in the Zagreb city region, Croatia. The results showed that the herbicides were present in drinking, surface, and groundwater samples, but there was no significant risk of carcinogenic or non-carcinogenic diseases, even when considering the combined effects of the herbicides.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Carolina Panis, Luciano Zanetti Pessoa Candiotto, Shaiane Carla Gaboardi, Susie Gurzenda, Jurandir Cruz, Marcia Castro, Bernardo Lemos
Summary: Pesticides, including carcinogenic ones, have extensively contaminated drinking water in the state of Parana, Brazil. Most municipalities exceeded the allowed limits for each pesticide, and the contaminated water is estimated to have caused 542 cancer cases, with mancozeb-ETU and diuron being the main contributors.
ENVIRONMENT INTERNATIONAL
(2022)
Article
Chemistry, Analytical
Filip Kotal, Frantisek Kozisek, Hana Jeligova, Adam Vavrous, Lenka Mayerova, Daniel W. Gari, Alena Moulisova
Summary: This article investigates the monitoring of pesticides in drinking water in the Czech Republic, revealing that most water supply systems contain multiple pesticides. However, health risk assessments did not identify risks to vulnerable populations like infants. Nevertheless, the increased presence of pesticides still undermines public trust in drinking water safety.
ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
(2021)
Article
Engineering, Environmental
Daniel M. Saftner, Steven N. Bacon, Monica M. Arienzo, Erika Robtoy, Karen Schlauch, Iva Neveux, Joseph J. Grzymski, Michele Carbone
Summary: Chronic exposure to high levels of arsenic in drinking water is a global health concern, particularly in the western Great Basin region. A logistic regression model was developed to predict the probability of elevated arsenic in alluvial aquifers and assess the geologic hazard level for domestic well populations. The model showed a high probability of elevated arsenic in untreated well water for a significant portion of the domestic well users in northern Nevada, northeastern California, and western Utah.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Multidisciplinary Sciences
Mina Pourshabanian, Simin Nasseri, Ramin Nabizadeh Nodehi, Sara Sadat Hosseini, Amir Hossein Mahvi
Summary: This study comprehensively measured the radon concentration in bottled water available in the Iran market. The results showed that the radon concentration in the samples was much lower than the recommended values by WHO and USEPA. Therefore, the radon concentration in common bottled water brands consumed in Iran poses no significant radiological risk to the Iranian people.
SCIENTIFIC REPORTS
(2023)
Article
Multidisciplinary Sciences
Mukesh Prasad, R. S. Aswal, Abhishek Joshi, G. Anil Kumar, R. C. Ramola
Summary: The occurrence of heavy metals in drinking water can pose a threat to water quality, but this study found that the concentrations of most heavy metals in potable water samples collected from the Mandakini valley in the Garhwal Himalaya region of India were below the reference values, indicating no health risks. The results of this study provide important baseline data for state and national regulatory agencies.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Environmental
Roos Goedhart, Simon Muller, Mark C. M. van Loosdrecht, Doris van Halem
Summary: The addition of phosphate to groundwater can recover anaerobic iron(II) as valuable vivianite. Increasing the pH can enhance the precipitation of vivianite, resulting in higher iron removal efficiency. Therefore, anaerobic iron removal is a promising and sustainable approach for groundwater treatment.
Article
Engineering, Environmental
Mrinal Roy, Case M. van Genuchten, Luuk Rietveld, Doris van Halem
Summary: Arsenic is a toxic element found in many groundwater sources around the world. Traditional removal techniques often require chemical treatment, but a novel bio-FeEC system was developed in this study, which effectively removes arsenic without the need for chemicals.
Article
Environmental Sciences
Rachel Cassidy, Phil Jordan, Luke Farrow, Stewart Floyd, Colin McRoberts, Phoebe Morton, Donnacha Doody
Summary: This article investigates the effectiveness of an agri-environmental scheme in reducing pesticide loads in drinking water sources. The results show that the scheme can reduce pesticide concentrations in the catchment, but does not fully resolve the need for water treatment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Pinakshi Biswas, Bhanu Prakash Vellanki, Absar Ahmad Kazmi
Summary: This study analyzed surface water, sediment, and groundwater samples from the Yamuna River basin in India, and found a high presence of agricultural chemicals and pharmaceuticals. The potential health risks of these contaminants were also evaluated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Nurudeen Abiola Oladoja, Iyayi Emmanuel Unuabonah
Summary: An assessment was conducted to evaluate the susceptibility of raw and treated drinking water to microplastics contamination. Microplastics are more prevalent in surface water systems compared to groundwater systems. Despite high removal efficiency, surface water-fed drinking water treatment plants still contained undesirable levels of microplastics, while groundwater-fed plants reported low concentrations. The mobility of microplastics within the soil matrix was found to be low due to the occurrence of upward flow caused by reverse pathways, enhanced by the low density and size of microplastics.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Environmental Sciences
Cassandra J. Clark, Nicholaus P. Johnson, Mario Soriano, Joshua L. Warren, Keli M. Sorrentino, Nina S. Kadan-Lottick, James E. Saiers, Xiaomei Ma, Nicole C. Deziel
Summary: This study found a potential association between residential proximity to unconventional oil and gas development (UOGD) and the risk of childhood acute lymphoblastic leukemia (ALL). The study suggests that UOGD may be a risk factor for childhood ALL, adding to the growing evidence of the impact of UOGD on children's health.
ENVIRONMENTAL HEALTH PERSPECTIVES
(2022)
Article
Engineering, Environmental
Mrinal Roy, Case M. van Genuchten, Luuk Rietveld, Doris van Halem
Summary: This research investigated a new approach to enhance the removal of arsenic from contaminated groundwater. The results showed that the addition of hydrogen peroxide under anaerobic conditions significantly improved the removal efficiency of arsenic. This was partly due to the enhanced oxidation of arsenic by hydrogen peroxide. Additionally, the study found that the crystallinity of the generated iron oxides decreased and the specific surface area increased when hydrogen peroxide was added, which further enhanced the removal of arsenic.
Article
Engineering, Environmental
Antika Pranudta, Santanu Patra, Penphitcha Amonpattaratkit, Wantana Klysubun, Chatree Saiyasombat, Medhat Mohamed El-Moselhy, Trung Thanh Nguyen, Surapol Padungthon
Summary: This study proposed co-precipitation with Zr(IV) nano-sludge as a solution for the management of arsenic-laden waste. The experimental results showed that Zr(IV) nano-sludge had similar affinity for inactivating arsenate as compared to conventional iron salt, but was more stable under certain conditions. The concentration of soluble arsenic in the leachate from the co-precipitation sludges was lower than the regulatory limit, suggesting that Zr may be used to stabilize arsenic in regenerant wastewater.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Nikolaos Montesantos, Mahdi Nikbakht Fini, Jens Muff, Marco Maschietti
Summary: The feasibility of hydrothermal oxidation for wastewater treatment in H2S scavenging operations on offshore oil and gas platforms was demonstrated, achieving COD reductions up to 98%. The process efficiently converted organic compounds into harmless products, with complete mineralization of organic nitrogen to ammonium and organic sulfur to sulfate observed.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Food Science & Technology
Sebastian Birkedal Kristensen, Tobias Bruun Pedersen, Mikkel Rank Nielsen, Reinhard Wimmer, Jens Muff, Jens Laurids Sorensen
Summary: In this study, the influence of carbohydrates and nitrogen sources on the production and selectivity of four different polyketides produced by Fusarium solani was investigated. Different combinations of carbohydrates and nitrogen sources showed varying effects on production yields and selectivity. Maximum yields did not necessarily correlate with high selectivity, which is important for easier purification steps.
Article
Biotechnology & Applied Microbiology
Tobias Bruun Pedersen, Mikkel Rank Nielsen, Sebastian Birkedal Kristensen, Eva Mie Lang Spedtsberg, Trine Sorensen, Celine Petersen, Jens Muff, Teis Esben Sondergaard, Kare Lehmann Nielsen, Reinhard Wimmer, Donald Max Gardiner, Jens Laurids Sorensen
Summary: The biosynthetic pathways for fungal polyketides have been reconstructed and expressed heterologously in yeast. The study found that FvPPT1 from Fusarium verticillioides showed the highest efficiency in producing the target polyketides. The results indicate that selecting an optimal PPTase partner can enhance the production of target polyketides.
MICROBIAL CELL FACTORIES
(2022)
Article
Engineering, Chemical
Sebastian Birkedal Kristensen, Mahdi Nikbakht Fini, Tobias Bruun Pedersen, Jens Laurids Sorensen, Jens Muff
Summary: This study focused on investigating the separation, concentration, and purification possibilities of valuable fungal pigments, produced by Fusarium solani, using membrane filtration. It was found that membrane filtration can effectively separate, concentrate, and purify the investigated fusarubins.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
Ana Rita Ferreira, Lars Breinholt, Kamilla M. S. Kaarsholm, Diego Francisco Sanchez, Ravi K. Chhetri, Jens Muff, Henrik R. Andersen
Summary: Produced water (PW) has become an environmental concern worldwide, and suitable treatment at offshore oil and gas platforms is required to achieve zero harmful discharge into the sea. This study investigated the feasibility of electrochemical oxidation, heat-activated persulfate, and ozonation as PW pretreatment, and found that ozonation showed the most promising results.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Engineering, Environmental
Morten D. Schostag, Alex Gobbi, Mahdi Nikbakht Fini, Lea Ellegaard-Jensen, Jens Aamand, Lars Hestbjerg Hansen, Jens Muff, Christian N. Albers
Summary: Groundwater contamination by recalcitrant organic micropollutants poses a great threat to drinking water quality. The study demonstrates the advantage of combining membrane filtration with bioaugmented sand filters to achieve efficient degradation of micropollutants by increasing residence time and nutrient availability.
Article
Engineering, Environmental
Nikolaos Montesantos, Lars M. Skjolding, Anders Baun, Jens Muff, Marco Maschietti
Summary: The study investigates the impact of hydrothermal oxidation on the ecotoxicity of H2S scavenging wastewaters. The results show that hydrothermal oxidation can significantly reduce the toxicity of the wastewaters, with a reduction of over 90% in toxicity towards bacteria and a reduction of 48% to 82% in toxicity towards algae. This provides a feasible method for the treatment of wastewaters in offshore oil and gas production.
Article
Chemistry, Multidisciplinary
Charlotte O. O. Wilhelmsen, Alexandros Pasadakis-Kavounis, Johan V. V. Christiansen, Thomas Isbrandt, Mads R. R. Almind, Thomas O. O. Larsen, Johan Hjelm, Jens Laurids Sorensen, Jens Muff
Summary: This study demonstrates the influence of phoenicin and its dimer on the capacity performance of phoenicin as a negolyte in a redox flow battery. The biosynthesized fungal quinone mix of phoenicin shows the ability to store four electrons per phoenicin molecule in a redox flow battery negolyte. A detailed analysis is conducted to understand the chemical stability of phoenicin in an alkaline environment.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Energy & Fuels
Charlotte Overgaard Wilhelmsen, Jens Muff, Jens Laurids Sorensen
Summary: The production of renewable energy from solar panels and windmills has been growing rapidly in recent years. However, a major obstacle in the green transition is the need for cost-efficient energy storage to fully exploit their potential. A promising solution is the use of redox flow batteries (RFBs) with quinones as electron carriers. Currently, quinones derived from crude oil are used, which does not align with the goal of sustainable energy production from renewable sources. Recent research has shown that filamentous fungi have great potential for quinone production, and a proof-of-concept RFB using fungal-produced quinones has been developed. We discuss the challenges that need to be addressed before fungal-produced quinone RFBs can be applied in the green transition.
Article
Engineering, Environmental
Daniel Nunez, Paula Oulego, Mahdi Nikbakht Fini, Jens Muff, Sergio Collado, Francisco A. Riera, Mario Diaz
Summary: The study investigates the fractioning of complex biomolecules in waste activated sludge through ultrafiltration using different membrane materials and molecular weight cut-off values. The results show that polyethersulfone (PES) membranes have the highest retention rates for proteins and carbohydrates (around 70%) and a retention rate of 47% for humic acids. Furthermore, by filtering the PES50 membrane permeate with the PES3 membrane, effective separation of carbohydrates, proteins, and humic acids can be achieved.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Electrochemistry
Charlotte Overgaard Wilhelmsen, Sebastian Birkedal Kristensen, Oliver Nolte, Ivan A. Volodin, Johan Vormsborg Christiansen, Thomas Isbrandt, Trine Sorensen, Celine Petersen, Teis Esben Sondergaard, Kare Lehmann Nielsen, Thomas Ostenfeld Larsen, Jens Christian Frisvad, Martin D. Hager, Ulrich S. Schubert, Jens Muff, Jens Laurids Sorensen
Summary: Aqueous organic redox flow batteries (AORFBs) are gaining interest as a potential solution for sustainable energy storage. In this study, a new electrolyte based on the fungal compound phoenicin was proposed and produced through biosynthesis, offering scalability. It was demonstrated that biologically produced phoenicin as a negative electrolyte showed promising performance in an RFB, and the stability of the active material was investigated.
BATTERIES & SUPERCAPS
(2022)
Article
Engineering, Environmental
Alaa Khalil, Nikolaos Montesantos, Marco Maschietti, Jens Muff
Summary: This study presents the synthesis of tailormade thin-film composite (TFC) nanofiltration (NF) membranes for the separation of H2S scavengers from oil and gas wastewater. By optimizing the membrane thickness and operating at a certain permeate recovery rate, high rejection rates and water permeability were achieved, while minimizing fouling.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Proceedings Paper
Green & Sustainable Science & Technology
Zhongting Tang, Ariya Sangwongwanich, Yongheng Yang, Charlotte Overgaard Wilhelmsen, Sebastian Birkedal Kristensen, Jens Laurids Sorensen, Jens Muff, Frede Blaabjerg
Summary: Aqueous organic redox-flow batteries (AORFBs) are promising for large-scale renewable energy integration due to their low-cost, high safety, material-abundant and environment-friendly features. The lifetime model characterized in this paper provides important guidance for the development and optimization of AORFBs, as well as for power converter design to enhance performance and integration.
2021 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE)
(2021)
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)