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The biosorption of Cr(VI) ions by dried biomass obtained from a chromium-resistant bacterium

Paul Fabrice NGUEMA,Zejiao LUO,Jingjing LIAN

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 4,   Pages 454-464 doi: 10.1007/s11705-014-1456-4

Abstract: The biosorption potential of many different kinds of biomaterials has been widely studied.However, there is little data on the biosorption mechanism of Cr(VI) by dried biomass.The functional groups in the biomass which may play a role in the biosorption process were identifiedThe biosorption process was found to be highly pH dependent and the optimum pH for the adsorption ofThe mechanism for the biosorption was also studied by fitting the kinetic data with an intra-particle

Keywords： Cr(VI)     biomass     Bacillus cereus Pf-1     biosorption capacity     biosorbents    

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Biosorption of Cu(II) to extracellular polymeric substances (EPS) from

Xiangliang PAN, Jing LIU, Wenjuan SONG, Daoyong ZHANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 4,   Pages 493-497 doi: 10.1007/s11783-012-0416-9

Abstract: Biosorption of extracellular polymeric substances (EPS) from sp.of peak A>peak B>peak C, implying that the humic-like substances in EPS have greater Cu(II) binding capacity

Keywords： biosorption     conditional binding constant     extracellular polymeric substances (EPS)     fluorescence quenching    

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Biosorption of mercury and lead by aqueous

Pratibha SANJENBAM, Kumar SAURAV, Krishnan KANNABIRAN

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 2,   Pages 198-202 doi: 10.1007/s11705-012-1285-2

Abstract: The biosorption of mercury and lead by marine actinomycetes isolated from marine sediment collected fromThe effects of the initial metal ion concentration, the pH and the biomass dosage on the biosorptionAt neutral pH, the isolate had a maximum biosorption of metal ions of 200 mg·L and 150 mg·L for mercury

Keywords： mercury     lead     biosorption     maximum tolerance concentration     Streptomyces VITSVK9 sp.    

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Biosorption and biotransformation of crystal violet by

Tao PAN, Suizhou REN, Jun GUO, Meiying XU, Guoping SUN

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 2,   Pages 185-190 doi: 10.1007/s11783-012-0435-6

Abstract: DN322p, an offspring of DN322, has the capacity to adsorb and decolorize triphenylmethane dyes in wastewaterDead cells had a similar adsorption capacity with living cells.

Keywords： crystal violet     decolorization     biosorption     biotransformation     Aeromonas hydrophila DN322p    

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Biosorption of Cd

Fengyu ZAN, Shouliang HUO, Beidou XI, Xiulan ZHAO

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 1,   Pages 51-58 doi: 10.1007/s11783-011-0206-9

Abstract: The biosorption of Cd and Cu onto the immobilized ( ) was investigated in this study.The results indicated that the biosorption of Cd and Cu on the immobilized was fast at initial stageThe maximum biosorption of heavy metal ions on immobilized were observed at pH 4 for Cd and Cu . byThe biosorption isotherm was fitted well by the Langmuir model, indicating possible mono-layer biosorption

Keywords： Saccharomyces cerevisiae (S. cerevisiae)     biosorption     heavy metals     immobilization    

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Biosorption of Cr(VI) by carbonized

Jinfa CHEN,Ping YANG,Dagang SONG,Sha YANG,Li ZHOU,Lei HAN,Bo LAI

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 6,   Pages 960-966 doi: 10.1007/s11783-013-0612-2

Abstract: High quality and low cost carbon can be prepared from ( ) and Buckwheat straw. The biosorbent was used for Cr(VI) removal. The effect of experimental parameters, such as pH, sorbent dosage and temperature were examined and the optimal experimental condition was determined. Solution pH is found influencing the adsorption. Cr(VI) removal efficiency is found to be maximum (98%) at pH= 1. Langmuir and Freundlich adsorption isotherms were applicable to the adsorption process and their constants were evaluated. The adsorption data obtained agreed well with the Langmuir sorption isotherm model. The maximum adsorption capacities for Cr(VI) ranged from 46.23 to 55.19 mg·g for temperature between 298 K and 308 K under the condition of pH= 1.0. Thermodynamic parameters such as free energy change ( ), enthalpy ( ) and entropy ( ) indicate a spontaneous, endothermic and increased randomness nature of Cr(VI) adsorption. Studies found that the raw and buckwheat straw mixed materials with simple treatment had a high efficiency for the removal of Cr(VI) and would be a promising adsorbent.

Keywords： Eupatorium adenophorum     buckwheat straw     adsorption     Cr(VI)     thermodynamics    

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Biosorption of Cr(III) from aqueous solution by freeze-dried activated sludge: Equilibrium, kinetic and

Qian YAO, Hua ZHANG, Jun WU, Liming SHAO, Pinjing HE,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 3,   Pages 286-294 doi: 10.1007/s11783-010-0025-4

Abstract: Batch biosorption experiments were conducted to remove Cr(III) from aqueous solutions using activatedthe effects of the initial pH, contact time, temperature, and initial Cr(III) concentration in the biosorptionThe results revealed that the activated sludge exhibited the highest Cr(III) uptake capacity (120 The biosorption results obtained at various temperatures showed that the biosorption pattern accuratelydiffusion model demonstrated that Cr(III) biosorption was film-diffusion-controlled.

Keywords： activated sludge     biosorption     chromium     film diffusion     kinetics     thermodynamics    

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Efficient acetylene/carbon dioxide separation with excellent dynamic capacity and low regeneration energy

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

Abstract: Here, remarkable acetylene/carbon dioxide separation featuring a high dynamic breakthrough capacity foracetylene clusters through hydrogen bonds and intermolecular interactions, which afforded a high acetylene capacity

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

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Buffer capacity of granular matter to impact of spherical projectile based on discrete element method

Ying YAN, Pengfei LI, Shunying JI

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 1,   Pages 50-54 doi: 10.1007/s11709-013-0186-x

Abstract: To investigate the impact-absorbing capacity of granular matter, the discrete element method (DEM) is

Keywords： granular matter     impact peak     buffer capacity     discrete element method     critical thickness    

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Dynamic simulation of urban water metabolism under water environmental carrying capacity restrictions

Weihua ZENG,Bo WU,Ying CHAI

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 1,   Pages 114-128 doi: 10.1007/s11783-014-0669-6

Abstract: Feedback loops can be analyzed to increase the water environmental carrying capacity (WECC) of the new

Keywords： urban water metabolism system (UWMS)     system dynamic simulation     water environmental carrying capacity    

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Polypropylene microplastics alter the cadmium adsorption capacity on different soil solid fractions

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 1,   Pages 3-3 doi: 10.1007/s11783-021-1437-z

Abstract:

Microplastics (MPs) are widely present in a variety of environmental media and have attracted more and more attention worldwide. However, the effect of MPs on the interaction between heavy metals and soil, especially in soil solid fraction level, is not well understood. In this study, batch experiments were performed to investigate the adsorption characteristics of Cd in bulk soil and three soil solid fractions (i.e. particulate organo matter (POM), organic-mineral compounds (OMC), and mineral) with or without polypropylene (PP) MPs.

Keywords： Polypropylene microplastics     Cadmium     Adsorption     POM     OMC     Mineral    

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Analytical algorithms of compressive bending capacity of bolted circumferential joint in metro shield

Frontiers of Structural and Civil Engineering   Pages 901-914 doi: 10.1007/s11709-023-0915-8

Abstract: The integrity and bearing capacity of segment joints in shield tunnels are associated closely with theparametric investigation is conducted to discuss the factors affecting the ultimate compressive bending capacity

Keywords： shield tunnel     segment joint     joint structural model     failure mechanism    

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A method to calculate working capacity space of multi-DOF manipulator and the application in excavating

Baochen WEI, Feng GAO

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 2,   Pages 109-119 doi: 10.1007/s11465-012-0323-6

Abstract:

Working capacity refers to the velocity output and force output of a manipulator.It is usually be represented by output capacity space.The results show that the effect of the gravity is a translation of the capacity space.This paper gives a method for the output capacity express especially for heavy duty manipulators.The output capacity space can be helpful to the driving parameters selection.

Keywords： working capacity     multi-DOF manipulator     capacity polytope     excavating mechanism    

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Foundations bearing capacity subjected to seepage by the kinematic approach of the limit analysis

Mehdi VEISKARAMI, Ghasem HABIBAGAHI

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 446-455 doi: 10.1007/s11709-013-0227-5

Abstract: kinematic approach of the limit analysis was employed to find the upper-bound limit of the bearing capacityIt was found that the bearing capacity has a decreasing trend with increase in the groundwater flow gradientand hence, a reduction factor has been introduced to the third term in the bearing capacity equation

Keywords： foundation     bearing capacity     limit analysis     numerical computation     plasticity     seepage    

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Analysis on shear capacity of prestressed concrete spatial connections

XUE Weichen, LIU Zhenyong, JIANG Dongsheng

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 4,   Pages 309-317 doi: 10.1007/s11709-008-0052-4

Abstract: concrete spatial connections, nonlinear finite element models were established to analyze the shear capacityIt is found that the shear capacity of spatial connection is influenced by joint hoop, beam prestressThe parametric studies also indicate that the shear capacity of spatial connection under biaxial cyclicA design formula for calculating the shear capacity of spatial connections is proposed based on the parametric

Keywords： available     direction     nonlinear     capacity     compressive    

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Title Author Date Type Operation

The biosorption of Cr(VI) ions by dried biomass obtained from a chromium-resistant bacterium

Paul Fabrice NGUEMA,Zejiao LUO,Jingjing LIAN

Journal Article

Biosorption of Cu(II) to extracellular polymeric substances (EPS) from

Xiangliang PAN, Jing LIU, Wenjuan SONG, Daoyong ZHANG

Journal Article

Biosorption of mercury and lead by aqueous

Pratibha SANJENBAM, Kumar SAURAV, Krishnan KANNABIRAN

Journal Article

Biosorption and biotransformation of crystal violet by

Tao PAN, Suizhou REN, Jun GUO, Meiying XU, Guoping SUN

Journal Article

Biosorption of Cd

Fengyu ZAN, Shouliang HUO, Beidou XI, Xiulan ZHAO

Journal Article

Biosorption of Cr(VI) by carbonized

Jinfa CHEN,Ping YANG,Dagang SONG,Sha YANG,Li ZHOU,Lei HAN,Bo LAI

Journal Article

Biosorption of Cr(III) from aqueous solution by freeze-dried activated sludge: Equilibrium, kinetic and

Qian YAO, Hua ZHANG, Jun WU, Liming SHAO, Pinjing HE,

Journal Article

Efficient acetylene/carbon dioxide separation with excellent dynamic capacity and low regeneration energy

Journal Article

Buffer capacity of granular matter to impact of spherical projectile based on discrete element method

Ying YAN, Pengfei LI, Shunying JI

Journal Article

Dynamic simulation of urban water metabolism under water environmental carrying capacity restrictions

Weihua ZENG,Bo WU,Ying CHAI

Journal Article

Polypropylene microplastics alter the cadmium adsorption capacity on different soil solid fractions

Journal Article

Analytical algorithms of compressive bending capacity of bolted circumferential joint in metro shield

Journal Article

A method to calculate working capacity space of multi-DOF manipulator and the application in excavating

Baochen WEI, Feng GAO

Journal Article

Foundations bearing capacity subjected to seepage by the kinematic approach of the limit analysis

Mehdi VEISKARAMI, Ghasem HABIBAGAHI

Journal Article

Analysis on shear capacity of prestressed concrete spatial connections

XUE Weichen, LIU Zhenyong, JIANG Dongsheng

Journal Article