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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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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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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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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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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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Concept and application of anaerobic suspended granular sludge bed (SGSB) reactor for wastewater treatment

Mingxia ZHENG,Zhong YAN,Jiane ZUO,Kaijun WANG

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 5,   Pages 797-804 doi: 10.1007/s11783-013-0597-x

Abstract: Bed expansion serves an important function in the design and operation of an upflow anaerobic reactorRather, these reactors behave as fluidized bed reactors based on the classic chemical reactor theory.In this paper, four bed expansion modes, divided as static bed, expanded bed, suspended bed, and fluidizedA high-rate anaerobic suspended granular sludge bed (SGSB) reactor was then developed.The SGSB reactor is an upflow anaerobic reactor, and its expansion degree can be easily controlled within

Keywords： expansion characteristic     high-rate bioreactor     anaerobic suspended granular sludge bed     expanded granularsludge bed reactor    

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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 amountsof Cr(VI) ions, although the hardness and humic acid in water may shorten the lifetime of the reactor

Keywords： hexavalent chromium     scrap iron     reduction capacity     drinking water    

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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 tubularsolar photocatalytic reactor.Parameters influencing photocatalyst distribution and radiation distribution at the reactor outlet, vizIt is found that, at the outlet of the reactor, the optimized six-flux model has better performances

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

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Circulating fluidized bed biological reactor for nutrients removal

CUI Yubo, LIU Hongbo, BAI Chunxue

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 3,   Pages 349-353 doi: 10.1007/s11783-008-0051-7

Abstract: A new biological nitrogen removal process, which is named herein “The circulating fluidized bed bioreactorThis process was composed of an anaerobic bed (Riser), aerobic bed (Downer) and connecting device.Influent and nitrified liquid from the aerobic bed enters the anaerobic bed from the bottom of the anaerobicbed, completing the removal of nitrogen and organic matter.With a shortest total retention time of 2.5 h (0.8 h in the anaerobic bed and 1.5 h in the aerobic bed

Keywords： soluble chemical     bioreactor     biological nitrogen     optimum nitrified     nitrogen removal    

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Large-scale industrial manufacturing of carbon nanotubes in a continuous inclined mobile-bed rotatingreactor via the catalytic chemical vapor deposition process

Sophie L. Pirard, Sigrid Douven, Jean-Paul Pirard

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 2,   Pages 280-289 doi: 10.1007/s11705-017-1635-1

Abstract: This process is based on a continuous inclined mobile-bed rotating reactor and very active catalysts

Keywords： carbon nanotubes     catalytic chemical vapor deposition     inclined rotating reactor     industrial process     scaling-up    

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Effects of carrier-attached biofilm on oxygen transfer efficiency in a moving bed biofilm reactor

Yanling WEI,Xunfei YIN,Lu QI,Hongchen WANG,Yiwei GONG,Yaqian LUO

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 3,   Pages 569-577 doi: 10.1007/s11783-015-0822-x

Abstract: Three laboratory-scale moving bed biofilm reactors (MBBR) with different carrier filling ratios ranging

Keywords： carrier     biofilm     oxygen transfer efficiency     moving bed biofilm reactor    

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Effect of nitrobenzene on the performance and bacterial community in an expanded granular sludge bedreactor treating high-sulfate organic wastewater

Jun Li, Wentao Li, Gan Luo, Yan Li, Aimin Li

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 1, doi: 10.1007/s11783-019-1090-y

Abstract:

Less than 50 mg/L nitrobenzene brought little effect on anaerobic sulfate reduction.

Kinetics of sulfate reduction under different nitrobenzene contents was studied.

Increased nitrobenzene contents greatly changed the bacterial community structure.

Genus Desulfovibrio played the key role in anaerobic sulfate reduction process.

Keywords： Nitrobenzene (NB)     Sulfate-reducing bacteria (SRB)     Bacterial community     Sulfate reduction     High-throughput sequencing    

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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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Title Author Date Type Operation

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

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

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

Journal Article

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

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

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

Concept and application of anaerobic suspended granular sludge bed (SGSB) reactor for wastewater treatment

Mingxia ZHENG,Zhong YAN,Jiane ZUO,Kaijun WANG

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

Theoretical study on flow and radiation in tubular solar photocatalytic reactor

Journal Article

Circulating fluidized bed biological reactor for nutrients removal

CUI Yubo, LIU Hongbo, BAI Chunxue

Journal Article

Large-scale industrial manufacturing of carbon nanotubes in a continuous inclined mobile-bed rotatingreactor via the catalytic chemical vapor deposition process

Sophie L. Pirard, Sigrid Douven, Jean-Paul Pirard

Journal Article

Effects of carrier-attached biofilm on oxygen transfer efficiency in a moving bed biofilm reactor

Yanling WEI,Xunfei YIN,Lu QI,Hongchen WANG,Yiwei GONG,Yaqian LUO

Journal Article

Effect of nitrobenzene on the performance and bacterial community in an expanded granular sludge bedreactor treating high-sulfate organic wastewater

Jun Li, Wentao Li, Gan Luo, Yan Li, Aimin Li

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