Article
Nanoscience & Nanotechnology
Yao-Wei Hong, Livy Laysandra, Yu-Cheng Chiu, Dun-Yen Kang
Summary: Membrane gas separation using innovative self-healing amphiphilic copolymer membranes shows improved gas separation performance and selectivity. These copolymers are designed by strategically incorporating functional segments, and their self-healing properties are achieved through hydrogen bonding. Vacuum-assisted self-healing method successfully restores the gas permeability and selectivity of the copolymer membranes after damage.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Metallurgy & Metallurgical Engineering
Jiashu Yao, Yali Li, C. Srinivasakannan, Jianfeng Ran, Shiwei Li, Shaohua Yin, Libo Zhang
Summary: This work proposes a solvent extraction process for removing chloride in slag flush wastewater. The effectiveness of the process was validated through experiments, and the number of stages required was predicted. A suitable stripping agent was used to increase the chloride concentration to facilitate precipitation.
Article
Engineering, Environmental
Mengmeng Liu, Jianqiang Wang, Yajie Ding, Yong Zhou, Fu Liu
Summary: Viscous oil separation and its highly efficient recovery is a challenging task in oil/water separation. A nondispersive solvent extraction strategy using a polydopamine modified PVDF Janus membrane has been proposed for efficient recovery of viscous lubricant oil from emulsions. The polydopamine layer facilitates the adsorption and diffusion of oil droplets through the membrane. The optimized membrane exhibited a 70% higher accumulative flux for viscous lubricant oil compared to the contrast PVDF membrane.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Metallurgy & Metallurgical Engineering
Rongrong Chen, Chunlv Feng, Jun Tan, Cheng Zhang, Shenghua Yuan, Mei Liu, Huiping Hu, Qinxiang Li, Jiugang Hu
Summary: Recovering metal values from hazardous spent hydrogenation catalysts is of vital importance for both economic and environmental reasons. This study demonstrates the successful selective recovery of valuable molybdenum (Mo), vanadium (V), and nickel (Ni) from spent hydroprocessing catalysts using a sulfuric acid leaching-stepwise extraction process. The process shows high leaching efficiency and selectivity.
Article
Metallurgy & Metallurgical Engineering
Azza F. El Wakil, Salah A. Zaki, Doaa A. Ismaiel, Hend M. Salem, Ahmed H. Orabi
Summary: The rapid growth of the electronics and energy industries has led to a greater focus on strategic elements. Gallium, which is widely used in electronic components and energy applications, is in high demand. In this study, gallium was successfully extracted and separated using 5-nonyl-2-hydroxyacetophenone oxime (NHAO) for the first time. The extraction process was efficient and selective, with a high separation factor for interfering metal ions.
Review
Chemistry, Applied
M. Zunita, R. Hastuti, A. Alamsyah, K. Khoiruddin, I. G. Wenten
Summary: Ionic liquids have emerged as promising candidates for carbon dioxide capture, replacing amine-based solvents due to their low vapor pressure, high stability, and tunable structure and properties. Combining functionalized ILs with membrane processes has opened up a new horizon in CO2 capture technology. The review comprehensively summarizes the latest developments in the application of ionic liquid membranes for CO2 capture.
SEPARATION AND PURIFICATION REVIEWS
(2022)
Article
Engineering, Chemical
Mengmeng Liu, Liqiang Shen, Jianqiang Wang, Yajie Ding, Yong Zhou, Fu Liu
Summary: This study proposes a membrane-based non-dispersive solvent extraction method for continuous separation and recovery of oil from oil-in-water emulsion with high viscosity and concentration. The method utilizes a hydrophobic poly(vinylidene fluoride) (PVDF) nanofibrous membrane to facilitate the transfer of oil from the emulsion side to the solvent side. The recovered oil can easily be obtained by evaporating the solvent, and its water content remains similar to the original sample.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Zidong Tan, Yong Zhen, Chang Wei, Xin Jin, Xingbin Li, Gang Fan, Xingguo Luo
Summary: In this study, germanium was selectively extracted using an organic phase containing YW100, D2EHPA, N235, and kerosene. The extraction process achieved a high extraction ratio and the addition of N235 improved the phase separation performance.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Chung -Wei Chen, Somayeh Mirzaei, Chieh-Chen Huang, Si -Yu Li
Summary: A 5-L pilot-scale packed-bed bioreactor with integrated in situ extraction/gas-stripping was developed for automated ABE fermentation. The bioreactor exhibited robustness during a continuous run of 770-h. Optimal inoculation protocols were developed to improve butanol productivity and bacterial growth. Inhomogeneous bacterial growth within the packed bed highlighted the need to address this issue for improved efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Review
Engineering, Chemical
Ying Shi Chang, Priyanka Kumari, Catherine J. Munro, Gyorgy Szekely, Lourdes F. Vega, Suzana Nunes, Ludovic F. Dumee
Summary: Plasticization is a common problem in polymeric membranes, where specific compounds can cause the material to degrade and lose performance. However, through smart material design and engineering processes, such as crosslinking and blending, this plasticization effect can be minimized. This review critically presents recent approaches to tackle plasticization in glassy polymeric membranes and offers recommendations for future work.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Environmental Sciences
P. K. Parhi, P. K. Misra
Summary: Solvent extraction separation of molybdenum from a sulphate leach solution was carried out using N-Methyl-N, N, N-tri-octyl-ammonium chloride. The study investigated the extraction conditions, including pH, extractant concentration, temperature, and phase ratio, to achieve selective and enriched extraction of molybdenum. The results showed successful extraction and stripping of molybdenum using the proposed conditions, leading to the precipitation of high purity MoO3.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Review
Engineering, Environmental
Daniel Nunez, Paula Oulego, Sergio Collado, Francisco A. Riera, Mario Diaz
Summary: The need for a new growth model based on circular economy has led to a growing interest in revalorizing urban and industrial wastewaters for efficient resource utilization. The recovery of valuable chemical compounds from waste activated sludge is of great importance. Prior to recovery, sludge solubilization processes must be conducted to release the valuable biomolecules by breaking the cell walls.
RESOURCES CONSERVATION AND RECYCLING
(2022)
Article
Biotechnology & Applied Microbiology
Prawit Kongjan, Naswana Tohlang, Sireethorn Khaonuan, Benjamas Cheirsilp, Rattana Jariyaboon
Summary: This study successfully recovered butanol from the model ABE aqueous solution using an integrated gas stripping and novel ABE recovery system. The results showed that nitrogen gas achieved the highest stripping efficiency, while H-2 gas achieved the highest condensation efficiency. The recovered butanol had high concentrations and can be further purified at reduced energy cost.
BIOCHEMICAL ENGINEERING JOURNAL
(2022)
Review
Chemistry, Multidisciplinary
Rupam Sahoo, Supriya Mondal, Debolina Mukherjee, Madhab C. Das
Summary: Efforts have been made to separate CO2 from flue gas and biogas using nonthermal-based separations, such as adsorption-based or membrane-separation technology employing metal-organic frameworks (MOFs). This review summarizes the strategies, performance parameters, and molecular-level mechanisms of such separations, and offers critical insights and future recommendations for further development of MOF materials as flue and biogas separators.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Engineering, Environmental
Guoping Hu, Qinghu Zhao, Mitch Manning, Li Chen, Lanjin Yu, Eric F. May, Kevin Gang Li
Summary: The study demonstrates the feasibility of separating methane from low concentration sources using the PVSA method, achieving high purity CH4 product gas with reduced energy consumption.
CHEMICAL ENGINEERING JOURNAL
(2022)
Editorial Material
Energy & Fuels
Changzhu Li, Dehua Liu, Ramaswamy, Jinyue Yan
Article
Biotechnology & Applied Microbiology
Zhe Ji, Xun Zhang, Zhe Ling, Xia Zhou, Shri Ramaswamy, Feng Xu
BIOTECHNOLOGY FOR BIOFUELS
(2015)
Article
Biotechnology & Applied Microbiology
Sudhanya Banerjee, Shri Ramaswamy
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2017)
Article
Biochemistry & Molecular Biology
Hua-Jiang Huang, Weilu Lin, Shri Ramaswamy, Ulrike Tschirner
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
(2009)
Article
Agricultural Engineering
Hua-Jiang Huang, Shri Ramaswamy, Waleed Wafa Al-Dajani, Ulrike Tschirner
BIORESOURCE TECHNOLOGY
(2010)
Article
Energy & Fuels
B. Zhang, H. -J. Huang, S. Ramaswamy
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2012)
Article
Agricultural Engineering
Xia Zhou, Jing Ma, Zhe Ji, Xun Zhang, Shri Ramaswamy, Feng Xu, Run-cang Sun
INDUSTRIAL CROPS AND PRODUCTS
(2014)
Article
Engineering, Chemical
Y. Defrenne, V Zhdankin, S. Ramanna, S. Ramaswamy, B. Ramarao
CHEMICAL ENGINEERING SCIENCE
(2019)
Article
Agricultural Engineering
Xin Li, Hai-Chao Li, Ting-Ting You, Yu-Ying Wu, Shri Ramaswamy, Feng Xu
INDUSTRIAL CROPS AND PRODUCTS
(2019)
Article
Materials Science, Paper & Wood
Xun Zhang, Sheng Chen, Shri Ramaswamy, Yoon Soo Kim, Feng Xu
Article
Chemistry, Multidisciplinary
Sheng Chen, Xun Zhang, Zhe Ling, Zhe Ji, Bandaru V. Ramarao, Shri Ramaswamy, Feng Xu
Article
Materials Science, Paper & Wood
Hua-Jiang Huang, Shri Ramaswamy
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)