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Recovery of NH

Yang ZHANG,Zifu LI,Ibrahim B MAHMOOD

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 6, Pages 825-834 doi: 10.1007/s11783-014-0682-9

Abstract: The Freundlich isotherm model fitted the adsorption process better than the Langmuir and Dubinin–Radushkevichisotherm models.Moreover, the adsorption process was well described by a pseudo-second-order kinetic model.

Keywords： corn cob biochar isotherm model kinetic model

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Preparation of adsorptive nanoporous membrane using powder activated carbon: Isotherm and thermodynamic

Majid Peyravi

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 4, Pages 673-687 doi: 10.1007/s11705-019-1800-9

Abstract: experimental leachate adsorption data were analyzed by Langmuir, Freundlich, and Dubinin- Radushkevich isotherm

Keywords： amine functionality nanoporous membrane adsorption isotherm thermodynamic parameters landfill leachate

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Removal of copper by modified chitosan adsorptive membrane

Xiaoshuai LIU, Zihong CHENG, Wei MA

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 1, Pages 102-106 doi: 10.1007/s11705-009-0123-7

Abstract: Compared with the Langmuir isotherm model, the experimental data were found to be following the Freundlichmodel.

Keywords： chitosan adsorptive membrane copper removal environmental engineering heavy metal isotherm model

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Contributions of adsorption, bioreduction and desorption to uranium immobilization by extracellular polymeric substances

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 9, doi: 10.1007/s11783-023-1707-z

Abstract:

● EPS immobilizes U(VI) via adsorption, bioreduction and desorption.

Keywords： Adsorption Bioreduction Desorption Kinetics Isotherm Uranium

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Immobilized

Pei MA, Dan ZHANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 4, Pages 498-508 doi: 10.1007/s11783-012-0429-4

Abstract: The Cd adsorption processes subjected to both adsorbents follow pseudo-second-order model.

Keywords： immobilization Lentinus edodes residue competitive adsorption isotherm

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The prediction of adsorption isotherms of ester vapors on hypercrosslinked polymeric adsorbent

Liuyan WU,Lijuan JIA,Xiaohan LIU,Chao LONG

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 3, Pages 482-490 doi: 10.1007/s11783-015-0826-6

Abstract: A predicted model based on DA equation was obtained on the basis of adsorption equilibrium data of methylThe model equation successfully predicted the adsorption isotherms of methyl acetate, ethyl acetate andThe results proved the effectiveness of DA model for predicting the adsorption isotherms of ester compounds

Keywords： hypercrosslinked polymeric adsorbent adsorption isotherm ester prediction

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Facile synthesis of α-MnO

Weixin ZHANG, Wenran ZHAO, Zaoyuan ZHOU, Zeheng YANG

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 1, Pages 64-72 doi: 10.1007/s11705-014-1402-5

Abstract: experimental data were analyzed by Langmuir and Freundlich models, and equilibrium data fitted the Langmuir isotherm

Keywords： MnO₂ Congo red adsorption kinetics isotherm thermodynamics

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Preparation and characterization of

Chunhua XU, Dandan CHENG, Baoyu GAO, Zhilei YIN, Qinyan YUE, Xian ZHAO

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 4, Pages 455-462 doi: 10.1007/s11783-010-0275-1

Abstract: To study the adsorption isotherm, two equilibrium models, the Langmuir and Freundlich isotherms, wereAt 293K, 303K and 313K, the adsorption capacities obtained from the Langmuir isotherm were 0.060, 0.070

Keywords： β-FeOOH-coated sand Cr(VI) adsorption isotherm kinetics

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Selective removal of phenol by spherical particles of

Qingchuan CHEN, Yicun WEN, Yu CANG, Li LI, Xuhong GUO, Rui ZHANG

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 2, Pages 162-169 doi: 10.1007/s11705-013-1318-5

Abstract: Spherical particles of -, - and -cyclodextrin (CD) polymers to efficiently remove phenol from waste water were prepared by reverse suspension polymerization with epichlorohydrin as crosslinker in liquid paraffin. By controlling the amounts of crosslinker and water, well-defined spherical polymer particles with controllable size were obtained. Due to the selective inclusion associations between CD groups and phenol, these CD spherical polymer particles were demonstrated to be ideal candidates for removal of phenol. Among them -CD polymer particles showed the best performance. The kinetics and isothermal equilibrium models were used to fit the experimental data of phenol removal from aqueous solution using these CD polymer particles. It was found that the kinetics followed the Ho and Mckay equation, suggesting that the adsorption process of phenol was controlled by diffusion and the host-guest interaction between CD and phenol. Equilibrium isothermal data can be well fitted by the Freundlich equation. The negative free energy change indicated the spontaneous nature of adsorption of phenol by -, - and -CD spherical polymer particles, while the lowest free energy for -CD polymer reflected its best adsorption ability, compared to - and -CD polymer particles.

Keywords： cyclodextrin polymer particles phenol kinetic models adsorption isotherm equilibrium models

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Performance and mechanism for cadmium and lead adsorption from water and soil by corn straw biochar

Tong Chi,Jiane Zuo,Fenglin Liu

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 2, doi: 10.1007/s11783-017-0921-y

Abstract: The sorption isotherms fit Langmuir model rather than Freundlich model, and the saturated sorption capacities

Keywords： Corn straw Biochar Heavy metals Sorption isotherm Bioavailability

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Fabrication, characterization and evaluation of mesoporous activated carbons from agricultural waste: Jerusalem artichoke stalk as an example

Lei YU,Chen TU,Yongming LUO

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 2, Pages 206-215 doi: 10.1007/s11783-014-0631-7

Abstract: The as-prepared JAS-MACs were characterized by thermogravimetric, nitrogen gas adsorption isotherm and

Keywords： mesoporous activated carbon response surface methodology adsorption isotherm agricultural wastes

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Effect of textural property of coconut shell-based activated carbon on desorption activation energy of benzothiophene

YU Moxin, LI Zhong, XI Hongxia, XIA Qibin, WANG Shuwen

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 3, Pages 269-275 doi: 10.1007/s11705-008-0056-6

Abstract: The Freundlich adsorption isotherm model can be properly used to formulate the adsorption behavior of

Keywords： diameter adsorption isotherm ASAP SY-19 > activated

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Adsorption of 1,3-propanediol from synthetic mixture using polymeric resin as adsorbents

W. LUERRUK, A. SHOTIPRUK, V. TANTAYAKOM, P. PRASITCHOKE, C. MUANGNAPOH

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 1, Pages 52-57 doi: 10.1007/s11705-009-0087-7

Abstract: The adsorption isotherms were closely predicted by the Langmuir-Freundlich model among the two isothermmodel tested.

Keywords： adsorption 1 3-propanediol glycerol polymeric resin adsorption isotherm

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Optimization, Kinetics, and Equilibrium Studies on the Removal of Lead(II) from an Aqueous Solution Using Banana Pseudostem as an Adsorbent Article

Shridhar S. Bagali, Bychapur S. Gowrishankar, Aashis S. Roy

Engineering 2017, Volume 3, Issue 3, Pages 409-415 doi: 10.1016/J.ENG.2017.03.024

Abstract: The experimental data were analyzed using isotherm and kinetic models.The adsorption of lead(II) onto banana pseudostem powder was fitted using the Langmuir adsorption isothermcapacity was found to be 34.21 mg·g⁻¹, and the pseudo second-order kinetic model

Keywords： Banana pseudostem Lead Isotherm Adsorption Response surface methodology

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Standard model of knowledge representation

Wensheng YIN

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 3, Pages 275-288 doi: 10.1007/s11465-016-0372-3

Abstract: methods include predicate logic, semantic network, computer programming language, database, mathematical modelintrinsic link between various knowledge representation methods, a unified knowledge representation modelAccording to ontology, system theory, and control theory, a standard model of knowledge representationThe model is composed of input, processing, and output.In addition, the standard model of knowledge representation provides a way to solve problems of non-precision

Keywords： knowledge representation standard model ontology system theory control theory multidimensional representation