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Enhanced adsorption of phosphate by loading nanosized ferric oxyhydroxide on anion resin

Jing REN,Nan LI,Lin ZHAO,Nanqi REN

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 4,   Pages 531-538 doi: 10.1007/s11783-014-0629-1

Abstract: Ferric oxyhydroxide loaded anion exchanger (FOAE) hybrid adsorbent was prepared by loading nanosizedferric oxyhydroxide (FO) on anion exchanger resin for the removal of phosphate from wastewater.Adsorption processes for both FOAE and anion resin were better fit to the pseudo first order model.

Keywords： phosphate removal     adsorption     nanosized ferric oxyhydroxide     anion exchanger    

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acetylene/carbon dioxide separation with excellent dynamic capacity and low regeneration energy by anion-pillared

Frontiers of Chemical Science and Engineering   Pages 1616-1622 doi: 10.1007/s11705-022-2183-x

Abstract: Construction of a pore structure with abundant TiF62– anion sites and pores withMoreover, the NbO52– anion-pillared material ZU-61 investigated for separation

Keywords： adsorption     acetylene/carbon dioxide separation     dynamic capacity     anion-pillared hybrid material    

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Experimental investigation of liquid metal alloy based mini-channel heat exchanger for high power electronic

Manli LUO, Jing LIU

Frontiers in Energy 2013, Volume 7, Issue 4,   Pages 479-486 doi: 10.1007/s11708-013-0277-3

Abstract: The simulated heat sources were all cooled down by these three heat dissipation apparatuses and the exchangeris expected to provide valuable reference for designing future liquid metal based mini-channel heat exchanger

Keywords： heat exchanger     liquid metal     mini-channel     heat dissipation     heat transfer coefficient    

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Sensitivity analysis and numerical experiments on transient test of compact heat exchanger surfaces

REN Hesheng, LAI Lingjun, CUI Yongzheng

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 374-380 doi: 10.1007/s11708-008-0079-1

Abstract: conduction is suggested for determining the average convection heat transfer coefficient of compact heat exchangeraccuracy of the estimated parameter , which characterizes the heat transfer performance of compact heat exchanger

Keywords： coefficient     dimensionless longitudinal     longitudinal     temperature     conduction    

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Process study on adsorption of glycerin from saline wastewater by strong base anion resin

Haitao ZHANG, Xiaoqing MA, Xian QU, Jeanpierre Arcangeli

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 1,   Pages 113-116 doi: 10.1007/s11705-010-0547-0

Abstract: A physicochemical method was used to adsorb glycerin in saline wastewater by strong base anion resinThen, this specific complex could be adsorbed by strong base anion resin.

Keywords： glycerin     anion resin     boric acid     wastewater     NaCl    

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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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Automated retrofit targeting of heat exchanger networks

Timothy G. Walmsley, Nathan S. Lal, Petar S. Varbanov, Jiří J. Klemeš

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 4,   Pages 630-642 doi: 10.1007/s11705-018-1747-2

Abstract:

The aim of this paper is to develop a novel heat exchanger network (HEN) retrofit method based onThe most promising retrofit project required 3 new heat exchanger units to achieve a heat savings of

Keywords： process retrofit     pinch analysis     heat exchanger network     heat recovery    

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Preparation of a novel anion exchange group modified hyper-crosslinked resin for the effective adsorption

Qing ZHOU, Mengqiao WANG, Aimin LI, Chendong SHUANG, Mancheng ZHANG, Xiaohan LIU, Liuyan WU

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 3,   Pages 412-419 doi: 10.1007/s11783-013-0483-6

Abstract: A novel hyper-crosslinked resin (MENQ) modified with an anion exchange group was prepared using divinylbenzeneresin had both a high specific surface area (793.34 m ·g ) and a large exchange capacity (strong base anionexchange capacity, SEC: 0.74 mmol·g , weak base anion exchange capacity, WEC: 0.45 mmol·g ).

Keywords： high surface area     adsorption     anion exchange     micropollutant     dissolved organic matters    

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Anion-exchange membrane direct ethanol fuel cells: Status and perspective

T.S. Zhao, Y.S. Li, S.Y. Shen

Frontiers in Energy 2010, Volume 4, Issue 4,   Pages 443-458 doi: 10.1007/s11708-010-0127-5

Abstract: Anion-exchange membrane (AEM) DEFCs that use low-cost AEM and non-platinum catalysts have recently been

Keywords： fuel cell     direct ethanol fuel cells     anion-exchange membrane     ethanol oxidation reaction     oxygen reduction    

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Characteristics of flow and heat transfer of shell-and-tube heat exchangers with overlapped helical baffles

Tingting DU, Wenjing DU

Frontiers of Engineering Management 2019, Volume 6, Issue 1,   Pages 70-77 doi: 10.1007/s42524-019-0005-8

Abstract:

The characteristics of flow and heat transfer of shell-and-tube heat exchangers with overlapped helical baffles (STHXsHB) were illustrated through a theoretical analysis and numerical simulation. The ideal helical flow model was constructed to demonstrate parts of the flow characteristics of the STHXsHB, providing theoretical evidence of short-circuit and back flows in a triangular zone. The numerical simulation was adopted to describe the characteristics of helical, leakage, and bypass streams. In a fully developed section, the distribution of velocity and wall heat transfer coefficient has a similar trend, which presents the effect of leakage and bypass streams. The short-circuit flow accelerates the axial velocity of the flow through the triangular zone. Moreover, the back flow enhances the local heat transfer and causes the ascent of flow resistance. This study shows the detailed features of helical flow in STHXsHB, which can inspire a reasonable optimization on the shell-side structure.

Keywords： heat exchanger     overlapped helical baffle     triangular zone     helical flow    

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Control strategies for disinfection byproducts by ion exchange resin, nanofiltration and their sequential combination

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 10, doi: 10.1007/s11783-023-1725-x

Abstract:

● Effects of AER adsorption and NF on DBP precursors, DBPs, and TOX were examined.

Keywords： Disinfection byproducts     Control     Anion exchange resin     Nanofiltration     Cytotoxicity    

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Application of entransy dissipation theory in heat convection

Mingtian XU, Jiangfeng GUO, Lin CHENG,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 402-405 doi: 10.1007/s11708-009-0055-4

Abstract: In the present work, formulas for calculating the rates of the local thermodynamic entransy dissipation in convective heat transfer in general, and the internal and external flows in particular, are established. Practically, these results may facilitate the application of entransy dissipation theory in thermal engineering. Theoretically they shed light on solving the contradiction of the minimum entropy production principle with balance equations in continuum mechanics.

Keywords： entransy dissipation     heat convection     heat exchanger    

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Optimal design analysis of a tubular heat exchanger network with extended surfaces using multi-objective

Hassan HAJABDOLLAHI, Mohammad SHAFIEY DEHAJ, Babak MASOUMPOUR, Mohammad ATAEIZADEH

Frontiers in Energy 2022, Volume 16, Issue 5,   Pages 862-875 doi: 10.1007/s11708-022-0839-3

Abstract: investigate the influence of extended surfaces (fins) on the multi-objective optimization of a tubular heat exchangerthe heat transfer area using various extended surfaces (fins) to enhance the performance of the heat exchangerTubular heat exchanger network design parameters were chosen as optimization variables, and optimizationsimple fins case enhances the effectiveness by up to 5.3% compared to that without fins (usual heat exchangerIn order to optimize the heat exchanger, the heat transfer rate and cold fluid temperature must increase

Keywords： constructal theory     extended surface     effectiveness     total heat transfer area     multi-objective optimization    

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Enhanced reductive degradation of carbon tetrachloride by carbon dioxide radical anion-based sodium percarbonate

Wenchao Jiang, Ping Tang, Shuguang Lu, Xiang Zhang, Zhaofu Qiu, Qian Sui

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 2, doi: 10.1007/s11783-017-0987-6

Abstract: Scavenging tests indicated that carbon dioxide radical anion (CO2· ) was the dominant reactive oxygen

Keywords： Carbon tetrachloride     Sodium percarbonate     Formic acid     Reductive radicals     Groundwater    

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Evolution of composite fouling on a vertical stainless steel surface caused by treated sewage

Cheng ZAN, Lin SHI, Xiujuan MA, Wenyan YANG,

Frontiers in Energy 2010, Volume 4, Issue 2,   Pages 171-180 doi: 10.1007/s11708-009-0068-z

Abstract: Composite biological and inorganic fouling occurs in plate heat exchangers (PHEs) using treated sewage as heat transfer medium, which lowers the heat transfer coefficient and increases the frictional resistance. In order to optimize the heat exchange process and improve the anti-fouling strategies, the dynamic behavior of composite fouling at a vertical surface of stainless steel (ANSI 316L) was investigated under typical conditions of PHEs. The growth curves of composite fouling were obtained. The evolution of composite fouling was characterized by means of environmental scanning electron microscopy (ESEM). Backscattered Electron Image (BEI) and energy dispersive X-ray spectrometry (EDS) were used as aids in interpreting the results. The experimental results show that a preliminary stage of a 6-day period with a low fouling growth rate exists during the composite fouling development. A significant change of the fouling growth rate happens after the preliminary stage during which the bacterial behaviors at the surface could be recorded clearly. After the preliminary stage, a space net-shape, mainly consisting of bacteria, extracellular products (EPS) and inorganic particles, could be established on the surface of the fouling layer. The change of fouling growth rate occurs synchronously with the evolution.

Keywords： treated sewage     plate heat exchanger     stainless steel     composite fouling     biofouling    

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Title Author Date Type Operation

Enhanced adsorption of phosphate by loading nanosized ferric oxyhydroxide on anion resin

Jing REN,Nan LI,Lin ZHAO,Nanqi REN

Journal Article

acetylene/carbon dioxide separation with excellent dynamic capacity and low regeneration energy by anion-pillared

Journal Article

Experimental investigation of liquid metal alloy based mini-channel heat exchanger for high power electronic

Manli LUO, Jing LIU

Journal Article

Sensitivity analysis and numerical experiments on transient test of compact heat exchanger surfaces

REN Hesheng, LAI Lingjun, CUI Yongzheng

Journal Article

Process study on adsorption of glycerin from saline wastewater by strong base anion resin

Haitao ZHANG, Xiaoqing MA, Xian QU, Jeanpierre Arcangeli

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

Automated retrofit targeting of heat exchanger networks

Timothy G. Walmsley, Nathan S. Lal, Petar S. Varbanov, Jiří J. Klemeš

Journal Article

Preparation of a novel anion exchange group modified hyper-crosslinked resin for the effective adsorption

Qing ZHOU, Mengqiao WANG, Aimin LI, Chendong SHUANG, Mancheng ZHANG, Xiaohan LIU, Liuyan WU

Journal Article

Anion-exchange membrane direct ethanol fuel cells: Status and perspective

T.S. Zhao, Y.S. Li, S.Y. Shen

Journal Article

Characteristics of flow and heat transfer of shell-and-tube heat exchangers with overlapped helical baffles

Tingting DU, Wenjing DU

Journal Article

Control strategies for disinfection byproducts by ion exchange resin, nanofiltration and their sequential combination

Journal Article

Application of entransy dissipation theory in heat convection

Mingtian XU, Jiangfeng GUO, Lin CHENG,

Journal Article

Optimal design analysis of a tubular heat exchanger network with extended surfaces using multi-objective

Hassan HAJABDOLLAHI, Mohammad SHAFIEY DEHAJ, Babak MASOUMPOUR, Mohammad ATAEIZADEH

Journal Article

Enhanced reductive degradation of carbon tetrachloride by carbon dioxide radical anion-based sodium percarbonate

Wenchao Jiang, Ping Tang, Shuguang Lu, Xiang Zhang, Zhaofu Qiu, Qian Sui

Journal Article

Evolution of composite fouling on a vertical stainless steel surface caused by treated sewage

Cheng ZAN, Lin SHI, Xiujuan MA, Wenyan YANG,

Journal Article