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Mass transfer mechanisms in fixed-bed adsorption of erythromycin

SUN Ying, ZHU Jiawen, CHEN Kui, ZHU Sheng, XU Jie

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 4,   Pages 353-360 doi: 10.1007/s11705-008-0076-2

Abstract: The separation performance was investigated in a fixed-bed system with respect to the adsorption superficial

Keywords： mathematical     diffusion     separation performance     adsorption superficial     mechanism    

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Recovery of Ni(II) from real electroplating wastewater using fixed-bed resin adsorption and subsequent

Tong Li, Ke Xiao, Bo Yang, Guilong Peng, Fenglei Liu, Liyan Tao, Siyuan Chen, Haoran Wei, Gang Yu, Shubo Deng

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 6, doi: 10.1007/s11783-019-1175-7

Abstract: In this study, the pilot-scale fixed-bed resin adsorption was conducted to recover Ni(II) ions from realan adsorption capacity of 63 mg/g for Ni(II) ions, and the average amount of treated water was 84.6 bed

Keywords： Nickel removal     Ion exchange     Electroplating wastewater     Regeneration     Electrodeposition    

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Advances in the slurry reactor technology of the anthraquinone process for H

Hongbo Li, Bo Zheng, Zhiyong Pan, Baoning Zong, Minghua Qiao

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1,   Pages 124-131 doi: 10.1007/s11705-017-1676-5

Abstract: The characteristics and differences between the fixed-bed and fluidized-bed reactors for the AO processThe detailed comparison indicates that the production of hydrogen peroxide with the fluidized-bed reactorThe key characters of the production technology of hydrogen peroxide based on the fluidized-bed reactorIt is apparent that substituting the fluidized-bed reactor for the fixed-bed reactor is a major direction

Keywords： anthraquinone process     fixed-bed reactor     slurry-bed reactor     hydrogen peroxide    

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Investigation of fluorescence characterization and electrochemical behavior on the catalysts of nanosized Pt-Rh/γ-Al

Chang-Mao HUNG, Wen-Liang LAI, Jane-Li LIN

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 3,   Pages 428-434 doi: 10.1007/s11783-013-0517-0

Abstract: method of hexachloroplatinic acid (H PtCl ) and rhodium (III) nitrate (Rh(NO ) ) with γ-Al O in a tubularfixed-bed flow quartz reactor (TFBR).

Keywords： >3 catalyst     excitation-emission fluorescent matrix (EEFM)     selective catalytic oxidation (SCO)     tubularfixed-bed reactor (TFBR)    

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Migration of manganese and iron during the adsorption-regeneration cycles for arsenic removal

Fangfang CHANG, Jiuhui QU, Xu ZHAO, Wenjun LIU, Kun WU

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 4,   Pages 512-518 doi: 10.1007/s11783-011-0372-9

Abstract: oxide incorporated into porous diatomite (FMBO-diatomite) was prepared in situ and regenerated in a fixed-bedAbout 3000, 3300, 3800, and 4500 bed volumes of eligible effluent (arsenic concentration≤0.01 mg·L )were obtained in four As(III) adsorption cycles; while about 2000, 2300, 2500, and 3100 bed volumes ofThe dissection results of FMBO-diatomite fixed-bed exhibited that small amounts of manganese and ironwere transferred from the top of the fixed-bed to the bottom of the fixed-bed during As(III) removal

Keywords： arsenic     adsorption     filtration     regeneration     fixed-bed    

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The coupling of sand with ZVI/oxidants achieved proportional and highly efficient removal of arsenic

Sana Ullah, Xuejun Guo, Xiaoyan Luo, Xiangyuan Zhang, Yameng Li, Ziyu Liang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1273-6

Abstract: Abstract • Simply doping sands with ZVI achieved an even activation of ZVI by oxidants. • Sand doping facilitated proportional As trapping along the ZVI/oxidants column. • ZVI/sand/oxidants are highly efficient for arsenic removal. • ZVI/sand/oxidants reduced significantly the Fe2+ leaching and effluent turbidity. • More than 54% of arsenic was reduced to As(III) in ZVI/sand/oxidants system. The coupling of zero-valent iron (ZVI) with common oxidants has recently achieved very rapid and highly efficient removal of Heavy metals from wastewater. However, the uniform activation of ZVI throughout the column and the proportional removal of target contaminants are urgently required for the prevention of premature filter clogging and the extension of the effective column operational time. In this study, we successfully achieved this objective by simply doping granular sand with ZVI at appropriate weight ratios. When pure ZVI packed column was spiked with oxidants, the majority of As trapping occurred between the column inlet and the first sampling point. In a packed column with a 1:20 mixture of ZVI and sand, the average As removal efficiency was 36 (1st), 13.1 (2nd), 18.5 (3rd), 19.2 (4th) and 5.9% (5th outlet). The overall arsenic removal performance of the composite filling system of ZVI/sand was equally as efficient as that of the previous pure ZVI-packed system. Moreover, the leaching of Fe was significantly reduced with an increased sand ratio, resulting in clearer water with less turbidity. The results of X-ray photoelectron spectroscopy (XPS) demonstrated that more than 54% of the arsenic was reduced to As(III). X-ray diffraction (XRD) and scanning electron microscopy (SEM) confirmed the extensive corrosion of the ZVI surface, which resulted in various species of iron oxyhydroxides responsible for the highly efficient sequester of arsenic through reduction, adsorption, and coprecipitation.

Keywords： Arsenic     ZVI     Sand     Oxidants     Fixed-bed Column     Removal    

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Deactivation and regeneration of TS-1/SiO

Hainan SHI, Yaquan WANG, Guoqiang WU, Wenping FENG, Yi Lin, Teng ZHANG, Xing JIN, Shuhai WANG, Xiaoxue WU, Pengxu YAO

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 2,   Pages 202-209 doi: 10.1007/s11705-013-1328-3

Abstract: TS-1/SiO catalyst for the epoxidation of propylene with hydrogen peroxide in a fixed-bed reactor has

Keywords： TS-1/SiO2     epoxidation of propylene     fixed-bed reactor     deactivation     regeneration    

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Reduction of hexavalent chromium with scrap iron in a fixed bed reactor

Yin WANG, Xuejiang WANG, Xin WANG, Mian LIU, Siqing XIA, Daqiang YIN, Yalei ZHANG, Jianfu ZHAO

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 6,   Pages 761-769 doi: 10.1007/s11783-012-0413-z

Abstract: The reduction of hexavalent chromium by scrap iron was investigated in continuous long-term fixed bedThe effects of pH, empty bed contact time (EBCT), and initial Cr(VI) concentration on Cr(VI) reductionThe fixed bed reactor can be readily used for the treatment of drinking water containing low amounts

Keywords： hexavalent chromium     scrap iron     reduction capacity     drinking water    

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Preparation and characterization of novel carbon molecular sieve membrane/PSSF composite by pyrolysis method for toluene adsorption

Ying Yan, Peng Huang, Huiping Zhang

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 4,   Pages 772-783 doi: 10.1007/s11705-019-1827-y

Abstract: Toluene adsorption experiments on different structured fixed bed that was padded by CMSM/PSSF and granularFor the sake of comparison, adsorption test was also performed on fixed bed packed with GAC.of CMCM/PSSF composites increased on the basis of Yoon-Nelson model, which suggested that structured fixedbed padded with CMSM/PSSF composite offered higher adsorption rate and mass transfer efficiency.

Keywords： carbon molecular sieve membrane     stainless steel fibers     pyrolysis     structured fixed bed     toluene    

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Performance study on T-stub connected semi-rigid joint between rectangular tubular columns and H-shaped

Guochang LI, Hongping YU, Chen FANG

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 3,   Pages 296-303 doi: 10.1007/s11709-013-0217-7

Abstract: This paper investigates the performance of T-stub connected semi-rigid joint of rectangular tubular columns

Keywords： rectangular tubular columns     T-stub     semi-rigid     nonlinear finite element analysis     moment-rotation curves    

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A numerical study of prestressed high strength steel tubular members

Michaela GKANTOU, Marios THEOFANOUS, Charalampos BANIOTOPOULOS

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 1,   Pages 10-22 doi: 10.1007/s11709-019-0547-1

Abstract: The structural behavior of prestressed high strength steel (HSS) tubular members is investigated throughNumerical models are developed and validated against published experimental data on HSS tubular membersDesign guidance for tensile and compressive prestressed tubular members is also provided.

Keywords： finite element     prestressing     tubular members     grout     high strength steel    

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Theoretical study on flow and radiation in tubular solar photocatalytic reactor

Frontiers in Energy 2021, Volume 15, Issue 3,   Pages 687-699 doi: 10.1007/s11708-021-0773-9

Abstract: based on the mixture flow model, an optimized six-flux model is first established and applied to the tubular

Keywords： photocatalytic hydrogen photoreactor     nume- rical simulation     solar energy     flow model     radiation model    

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Preventive effect of Shenkang injection against high glucose-induced senescence of renal tubular cells

Biqiong Fu, Jie Yang, Jia Chen, Lirong Lin, Kehong Chen, Weiwei Zhang, Jianguo Zhang, Yani He

Frontiers of Medicine 2019, Volume 13, Issue 2,   Pages 267-276 doi: 10.1007/s11684-017-0586-8

Abstract: This study aimed to investigate the protective effect of SKI against high glucose (HG)-induced renal tubularanti-senescence molecules klotho, sirt1, and peroxisome proliferator-activated receptor- in renal tubularSKI may be a novel strategy for protecting against HG-induced renal tubular cell senescence in treatment

Keywords： Shenkang injection     senescence     renal tubular epithelial cells     diabetic nephropathy    

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Prediction of bed load sediments using different artificial neural network models

Reza ASHEGHI, Seyed Abbas HOSSEINI

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 374-386 doi: 10.1007/s11709-019-0600-0

Abstract: Modeling and prediction of bed loads is an important but difficult issue in river engineering.based function (RBF), and generalized feed forward neural network using five dominant parameters of bed

Keywords： bed load prediction     artificial neural network     modeling     empirical equations    

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Factors affecting production of nonaqueous peracetic acid in tubular packed reactors

ZHANG Tengyun, FAN Hongbo, ZHONG Li, CHUANG Karl

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 2,   Pages 196-203 doi: 10.1007/s11705-008-0037-9

Abstract: The synthesis of nonaqueous peracetic acid in acetone by acetaldehyde oxidation was carried out in a tubular
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Title Author Date Type Operation

Mass transfer mechanisms in fixed-bed adsorption of erythromycin

SUN Ying, ZHU Jiawen, CHEN Kui, ZHU Sheng, XU Jie

Journal Article

Recovery of Ni(II) from real electroplating wastewater using fixed-bed resin adsorption and subsequent

Tong Li, Ke Xiao, Bo Yang, Guilong Peng, Fenglei Liu, Liyan Tao, Siyuan Chen, Haoran Wei, Gang Yu, Shubo Deng

Journal Article

Advances in the slurry reactor technology of the anthraquinone process for H

Hongbo Li, Bo Zheng, Zhiyong Pan, Baoning Zong, Minghua Qiao

Journal Article

Investigation of fluorescence characterization and electrochemical behavior on the catalysts of nanosized Pt-Rh/γ-Al

Chang-Mao HUNG, Wen-Liang LAI, Jane-Li LIN

Journal Article

Migration of manganese and iron during the adsorption-regeneration cycles for arsenic removal

Fangfang CHANG, Jiuhui QU, Xu ZHAO, Wenjun LIU, Kun WU

Journal Article

The coupling of sand with ZVI/oxidants achieved proportional and highly efficient removal of arsenic

Sana Ullah, Xuejun Guo, Xiaoyan Luo, Xiangyuan Zhang, Yameng Li, Ziyu Liang

Journal Article

Deactivation and regeneration of TS-1/SiO

Hainan SHI, Yaquan WANG, Guoqiang WU, Wenping FENG, Yi Lin, Teng ZHANG, Xing JIN, Shuhai WANG, Xiaoxue WU, Pengxu YAO

Journal Article

Reduction of hexavalent chromium with scrap iron in a fixed bed reactor

Yin WANG, Xuejiang WANG, Xin WANG, Mian LIU, Siqing XIA, Daqiang YIN, Yalei ZHANG, Jianfu ZHAO

Journal Article

Preparation and characterization of novel carbon molecular sieve membrane/PSSF composite by pyrolysis method for toluene adsorption

Ying Yan, Peng Huang, Huiping Zhang

Journal Article

Performance study on T-stub connected semi-rigid joint between rectangular tubular columns and H-shaped

Guochang LI, Hongping YU, Chen FANG

Journal Article

A numerical study of prestressed high strength steel tubular members

Michaela GKANTOU, Marios THEOFANOUS, Charalampos BANIOTOPOULOS

Journal Article

Theoretical study on flow and radiation in tubular solar photocatalytic reactor

Journal Article

Preventive effect of Shenkang injection against high glucose-induced senescence of renal tubular cells

Biqiong Fu, Jie Yang, Jia Chen, Lirong Lin, Kehong Chen, Weiwei Zhang, Jianguo Zhang, Yani He

Journal Article

Prediction of bed load sediments using different artificial neural network models

Reza ASHEGHI, Seyed Abbas HOSSEINI

Journal Article

Factors affecting production of nonaqueous peracetic acid in tubular packed reactors

ZHANG Tengyun, FAN Hongbo, ZHONG Li, CHUANG Karl

Journal Article