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Repeated batch fermentation with water recycling and cell separation for microbial lipid production

Yumei WANG, Wei LIU, Jie BAO

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 4,   Pages 453-460 doi: 10.1007/s11705-012-1210-8

Abstract: Large waste water disposal was the major problem in microbial lipid fermentation because of low yield of lipid. In this study, the repeated batch fermentation was investigated for reducing waste water generated in the lipid fermentation of an oleaginous yeast CX1 strain. The waste fermentation broth was recycled in the next batch operation after the cells were separated using two different methods, centrifugation and flocculation. Two different sugar substrates, glucose and inulin, were applied to the proposed operation. The result showed that at least 70% of the waste water was reduced, while lipid production maintained satisfactory in the initial four cycles. Furthermore, it is suggested that CX1 cells might produce certain naturally occurring inulin hydrolyzing enzyme(s) for obtaining fructose and glucose from inulin directly. Our method provided a practical option for reducing the waste water generated from microbial lipid fermentation.

Keywords： batch fermentation     microbial lipid     Trichosporon cutaneum CX1     flocculation     waste water recycle    

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Zinc Air Fuel Cell Power Station

Zhu Mei,Xu Xianzhi,Su Run

Strategic Study of CAE 2004, Volume 6, Issue 12,   Pages 62-64

Abstract: The zinc-air fuel cell power station technology is introduced in this paper.The detachable electrode technology is employed for manufacturing the largest single cell in the worldAnother character of the power station is the separation circulation technology, which improves the general

Keywords： fuel cell     zinc-air fuel cell     detachable electrode     single cell     separation circulation technology    

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Effects of Three-Dimensional Platform Stiffness and Layer Dimensions on Separation of Carcinoma Cells Article

W.G. Zhang, Z.Y. Liu, S.W. Pang

Engineering 2021, Volume 7, Issue 10,   Pages 1426-1435 doi: 10.1016/j.eng.2020.09.010

Abstract:

Cancer cell separation is highly desirable for cancer diagnosis and therapy.Using these 3D biomimetic platforms, 89% separation efficiency of NPC43 cells from NP460 cells was achievedMoreover, the separation efficiency was further increased to 93% by adding an active conditioned medium

Keywords： Cell separation     Cell migration     Nasopharyngeal carcinoma (NPC)     3D scaffold platform    

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Multi-objective optimization of molten carbonate fuel cell system for reducing CO

Ramin ROSHANDEL,Majid ASTANEH,Farzin GOLZAR

Frontiers in Energy 2015, Volume 9, Issue 1,   Pages 106-114 doi: 10.1007/s11708-014-0341-7

Abstract: The aim of this paper is to investigate the implementation of a molten carbonate fuel cell (MCFC) as

Keywords： molten carbonate fuel cell (MCFC)     multi-objective optimization (MOO)     Pareto curve     genetic algorithm     CO2 separation    

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Phase separation in cGAS-STING signaling

Frontiers of Medicine   Pages 855-866 doi: 10.1007/s11684-023-1026-6

Abstract: Biomolecular condensates formed by phase separation are widespread and play critical roles in many physiologicalInterestingly, exciting recent studies have reported that biomolecular phase separation exists and playsHere, we summarize recent advances in the phase separation of cGAS-STING signaling and the development

Keywords： biomolecular condensates     phase separation     cGAS-STING pathway     cGAS     STING     cGAMP     interferon    

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Selective capture and separation of xenon and krypton using metal organic frameworks: a review

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 1895-1912 doi: 10.1007/s11705-023-2355-3

Abstract: Metal organic frameworks as hotspot porous materials for gases uptake and separation are considered tocomprehensively summarized recent researches on metal organic frameworks for selective capture and separationsites, ions (anions and cations), and polar functional groups for enhancing the xenon adsorption and separationMeanwhile, a comparison of each strategy and the mechanisms of xenon/krypton separation were pointedThe separation of krypton from gases mixtures by dual-bed systems was further discussed.

Keywords： metal organic frameworks     xenon     krypton     selective separation     used nuclear fuel    

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Highly hydrophobic oil−water separation membrane: reutilization of waste reverse osmosis membrane

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1606-1615 doi: 10.1007/s11705-022-2200-0

Abstract: modified membrane displayed good hydrophobicity with a contact angle of 135.2° ± 0.3°, and its oil–water separationAfter 20 recycle tests, the oil–water separation performance remained more than 96%, which was attributed

Keywords： oil–water separation     wasted reverse osmosis membrane     hydrophobic modification    

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Tetrazole tethered polymers for alkaline anion exchange membranes

Erigene Bakangura, Yubin He, Xiaolin Ge, Yuan Zhu, Liang Wu, Jin Ran, Congliang Cheng, Kamana Emmanuel, Zhengjin Yang, Tongwen Xu

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 2,   Pages 306-310 doi: 10.1007/s11705-017-1690-7

Abstract: Poly(2,6-dimethyl-1,4-phenylene oxide) was tethered with a 1,5-disubstituted tetrazole through a quaternary ammonium linkage. The formation of a tetrazole-ion network in the resulting polymers was found to promote the hydroxide ion transport through the Grotthus-type mechanism.

Keywords： anion exchange membrane     fuel cell     phase separation     tetrazole    

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Phase separation time/temperature dependence of thermoplastics-modified thermosetting systems

ZHANG Xiujuan, XU Yuanze, YI Xiaosu

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 3,   Pages 276-285 doi: 10.1007/s11705-008-0057-5

Abstract: The cure-induced phase separation processes of various thermoplastics(TP)-modified thermosetting systemsWe found that the phase separation time/temperature relationship follows the simple Arrhenius equationThe cure-induced phase separation activation energy (ps) generated from the linear fitting of the Arrheniusequation is irrelevant to the detection means of phase separation time.With the established phase separation time-temperature dependence relation, we can easily establish the

Keywords： separation time-temperature     temperature dependency     cure-induced     separation activation     temperature    

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Microfluidic production of liposomes through liquid–liquid phase separation in ternary droplets

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 1017-1022 doi: 10.1007/s11705-021-2118-y

Abstract: droplets, which can evolve into water-in-oil-in-water double emulsion droplets by liquid–liquid phase separation

Keywords： microfluidics     liposomes     ternary droplets     phase separation    

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Imprinted membranes for sustainable separation processes

Laura Donato, Enrico Drioli

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 4,   Pages 775-792 doi: 10.1007/s11705-020-1991-0

Abstract: recycling raw materials increased the interest in the production of highly selective and efficient separationThis work discusses the concept and separation mechanisms of imprinted membranes.

Keywords： sustainable processes     membrane separation     molecular recognition     imprinted membranes     water treatment    

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Fabrication of a superhydrophilic/underwater superoleophobic stainless steel mesh for oil/water separation

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 1,   Pages 46-55 doi: 10.1007/s11705-022-2170-2

Abstract: produced each day, it is important to develop superhydrophilic/underwater superoleophobic oil/water separationmembranes with ultrahigh flux and high separation efficiency.In addition, the mesh showed high-efficiency separation ability (99.2%) and ultrahigh flux (235239 L∙

Keywords： oil/water separation     N-isopropylacrylamide     stainless steel mesh     ultrahigh flux    

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Easily-manufactured paper-based materials with high porosity for adsorption/separation applications in

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 7,   Pages 830-839 doi: 10.1007/s11705-022-2267-7

Abstract: The separation efficiency of the emulsified oil was 99.3%, and the water flux was up to 2020 L·m

Keywords： adsorption     oil–water separation     underwater superoleophobicity     wastewater treatment    

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Biodegradable, superhydrophobic walnut wood membrane for the separation of oil/water mixtures

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 9,   Pages 1377-1386 doi: 10.1007/s11705-022-2157-z

Abstract: The preparation of environmentally friendly oil/water separation materials remains a great challenge.The method has potential for the large-scale fabrication of degradable superhydrophobic filtration separation

Keywords： wood nanotechnology     superhydrophobic     biodegradable     surface modification     oil/water separation    

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Rare-earth separation based on the differences of ionic magnetic moment via quasi-liquid strategy

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1584-1594 doi: 10.1007/s11705-022-2189-4

Abstract: The separation of rare earth elements is particularly difficult due to their similar physicochemicalTaking the separation of Er/Y, Ho/Y and Er/Ho as examples, the results showed that Er(III) and Ho(IIIThe separation factors of Er/Y and Ho/Y were achieved at 9.0 and 28.82, respectively.Magnetic separation via quasi-liquid system strategy provides a possibility of the novel, green, andefficient method for rare earth separation.

Keywords： rare earth element     different magnetic moment     magnetic separation     ionic liquid    

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Title Author Date Type Operation

Repeated batch fermentation with water recycling and cell separation for microbial lipid production

Yumei WANG, Wei LIU, Jie BAO

Journal Article

Zinc Air Fuel Cell Power Station

Zhu Mei,Xu Xianzhi,Su Run

Journal Article

Effects of Three-Dimensional Platform Stiffness and Layer Dimensions on Separation of Carcinoma Cells

W.G. Zhang, Z.Y. Liu, S.W. Pang

Journal Article

Multi-objective optimization of molten carbonate fuel cell system for reducing CO

Ramin ROSHANDEL,Majid ASTANEH,Farzin GOLZAR

Journal Article

Phase separation in cGAS-STING signaling

Journal Article

Selective capture and separation of xenon and krypton using metal organic frameworks: a review

Journal Article

Highly hydrophobic oil−water separation membrane: reutilization of waste reverse osmosis membrane

Journal Article

Tetrazole tethered polymers for alkaline anion exchange membranes

Erigene Bakangura, Yubin He, Xiaolin Ge, Yuan Zhu, Liang Wu, Jin Ran, Congliang Cheng, Kamana Emmanuel, Zhengjin Yang, Tongwen Xu

Journal Article

Phase separation time/temperature dependence of thermoplastics-modified thermosetting systems

ZHANG Xiujuan, XU Yuanze, YI Xiaosu

Journal Article

Microfluidic production of liposomes through liquid–liquid phase separation in ternary droplets

Journal Article

Imprinted membranes for sustainable separation processes

Laura Donato, Enrico Drioli

Journal Article

Fabrication of a superhydrophilic/underwater superoleophobic stainless steel mesh for oil/water separation

Journal Article

Easily-manufactured paper-based materials with high porosity for adsorption/separation applications in

Journal Article

Biodegradable, superhydrophobic walnut wood membrane for the separation of oil/water mixtures

Journal Article

Rare-earth separation based on the differences of ionic magnetic moment via quasi-liquid strategy

Journal Article