mining of competitive adsorption

Sales Inquiry

  • (PDF) Competitive adsorption phenomenon in shale gas .

    It is expected that this work can reveal the mechanisms of competitive adsorption. between shale gas and gases, and provide a guidance for displacement exploitation of shale gas by gas.

  • Competitive adsorption of heavy metals and . - SpringerLink

    Abstract. Measurements were made of the adsorption of lead, cadmium, zinc, nickel and uranium per unit surface area of microorganisms, two clays (reference smectite, kaolinite), and two soils (untreated Vertisol and treated Vertisol) to quantify the selective affinity.

  • A review of recent research and development of the effect .

    However, the water-block effect will restrain desorption of coalbed methane. Based on the essence of the physical adsorption of methane, competitive adsorption, substitution desorption, the capillary effect, and the Jamin effect are analyzed to study the effect of the critical moisture content and liquid water on methane adsorption and desorption.

  • Competitive adsorption of Cd2+, Pb2+ and Ni2+ onto Fe3 .

    The competitive adsorption of Cd 2+, Pb 2+ and Ni 2+ by FAL adsorbent at different ionic strengths and species was shown in Fig. 5. An increase in ionic strength decreased the adsorption capacity of Cd 2+, Pb 2+ and Ni 2+ in either mono-metal or multi-metal system.

  • Competitive adsorption equilibria of CO2 and CH4 on a dry coal

    The competitive adsorption measurements are performed at 45 °C and up to 190 bar for pure CO2, CH4 and four mixtures of molar feed compositions of 20.0, 40.0, 60.0 and 80.0% CO2 using a .

  • 4 - Application of Nanotechnology in the Removal of Heavy .

    Jan 01, 2019 · The heavy metals in water has caused serious damage to the health of animals and human beings, it is considered to be one of the most serious environm.

  • Adsorption of Pyrene from Aqueous Solutions onto Sepiolite .

    The pyrene adsorption isotherms were closely fitted to the Langmuir model and the coefficients of determination (RP2) were higher than 0.999. The results indicated that the high affinity of pyrene for sepiolite surfaces was dominated by the structural channels and the large number of Si-OH groups located on the basal surfaces.

  • Competitive Sorption of Heavy Metal Ions by Soils .

    Jul 06, 2004 · Competitive adsorption is also investigated by performing multicomponent sorption isotherms. The aim of the work was to evaluate the exchangeable fraction of metal retained in the soil, when it is contaminated by multicomponent heavy metal solutions.

  • Adsorption Science & Technology The binary gas sorption in .

    the same no matter what the gas adsorption order of competitive adsorption and displacement adsorption. Hence, coal gas adsorption is physical adsorption, i.e. the different adsorption and desorption process of gas molecules does not affect the final adsorption amount of coal to each component of gas.

  • Absorption and Adsorption of Methane and Carbon Dioxide in .

    Competitive adsorption equilibria of CO2 and CH4 on a dry coal. Adsorption 2008, DOI: 10.1007/s10450-008-9114-0. Janina Milewska-Duda, Jan Tadeusz Duda. High-Accuracy PVT Relationships for Compressed Fluids and Their Application to BET-like Modelling of CO 2 and CH 4 Adsorption.

  • Dynamic simulation of the carbon-in-pulp and carbon-in .

    a) Adsorption on Activated Carbon. The detailed kinetic models for gold adsorption that include diffusion in the activated carbon particles or in the external film require the use of several parameters whose estimation using laboratory and plant experiments can be laborious.

  • An Experimental Study on the Adsorption and Desorption of .

    The results of the competitive adsorption experiments indicated that the competitive capacity of Cu(II) was greater than that of Zn(II) in low-permeability media such as silty clay, and the existence of binary metals can weaken the adsorption force between the single metal and the soil surface. . Chenchao mining area is a famous iron mine .

  • MODELING ARSENATE COMPETITIVE ADSORPTION ON .

    MODELING ARSENATE COMPETITIVE ADSORPTION ON KAOLINITE, MONTMORILLONITE AND ILLITE BRUCE A. MANNING AND S. GOLDBERG USDA-ARS, U.S. Salinity Laboratory, 450 West Big Springs Road, Riverside, California 92507 Abstract--The adsorption of arsenate (As(V)) on kaolinite, montmorillonite and illite was investigated

  • Single and Binary Competitive Adsorption of Cobalt and .

    Compared with the single-component system, the uptake of Co(II)/Ni(II) for the binary-component adsorption decreased due to competitive adsorption. The potential mechanism of Co(II)/Ni(II) removal by MEPE was mainly electrostatic attraction and surface complex formation.

  • Competitive sorption and availability of coexisting heavy .

    Main content area. Competitive sorption and availability of coexisting heavy metals in mining-contaminated soil: Contrasting effects of mesquite and fishbone biochars

  • Competitive Adsorption of Metals onto Magnetic Graphene .

    Competitive adsorption isotherms of Cu(II), Pb(II), and Cd(II) were examined on a magnetic graphene oxide (GO), multiwalled carbon nanotubes (MWCNTs), and powered activated carbon (PAC). A series of analyses confirmed the successful synthesis of the magnetic GO based on a simple ultrasonification method. Irrespective of the adsorbents, the adsorption was highly dependent on pH, and the .

  • Adsorption Processes for Water Treatment and Purification

    This book provides researchers and graduate students with an overview of the latest developments in and applications of adsorption processes for water treatment and purification.

  • Adsorption of aqueous Cd(II) and Pb(II) on activated .

    Aug 28, 2015 · Non-uniformly sized activated carbons were derived from doum palm shell, a new precursor, by carbonization in air and activation using KOH, NaOH and ZnCl 2.The activated carbon fibres were characterised by X-ray diffraction, N 2 adsorption–desorption, scanning electron microscopy, particle size analysis and evaluated for Cd(II) and Pb(II) removal. . The .

  • Competitive adsorption of metals on cabbage waste from .

    Carboxylic, hydroxyl, and amine groups in cabbage waste were found to be the key functional groups for metal sorption. The adsorption isotherms obtained could be well fitted to both the mono- and multi-metal models. In the competitive adsorption systems, cabbage waste adsorbed larger amount of Pb(II) than the other three metals.

  • Study on the adsorption performance and competitive .

    The adsorption trends of Pb 2+, Cd 2+, Cu 2+, Ni 2+ and Zn 2+ in the competitive system were all similar with that in the single adsorption systems. The adsorption process achieved equilibrium in 150 min and could be described well by the pseudo-second-order model, consistent with the adsorption kinetics analysis above.

  • Competitive adsorption of metals on cabbage waste from .

    Competitive adsorption of metals on cabbage waste from multi-metal solutions Article in Bioresource Technology 160 · January 2014 with 76 Reads How we measure 'reads'

  • Competitive adsorption of Cd2+, Pb2+ and Ni2+ onto Fe3 .

    Oct 01, 2018 · The current results revealed an efficient adsorption on Cd2+, Pb2+ and Ni2+ in mono-metal system. Further experiments demonstrated a high selectivity of Pb2+ during the competitive adsorption of Cd2+, Pb2+ and Ni2+. The adsorption selectivity .

  • Adsorption of Heavy Metals: A Review

    3.6 Adsorption Adsorption is a process that occurs when a gas or liquid solute accumulates on the surface of a solid or a liquid (adsorbent), forming a molecular or atomic film (the adsorbate). Adsorption is operative in most natural physical, biological, and chemical

  • Effect of the soil biochar aging on the sorption and .

    Mar 12, 2020 · Also, the KL was lower in competitive system than the individual system in all treatments. Strength of Pb2+ adsorption in soils treated with B400 and B600 enhanced at 90 days compared to 30 days of incubation. Lead desorbed in 10 mM CaCl2 (< 1% of adsorbed Pb2+) and DTPA–TEA solutions decreased with an increase in the pyrolysis temperature.

  • Kinetics, thermodynamics and competitive adsorption of .

    Kinetics, thermodynamics and competitive adsorption of lead . paint manufacturing, mining, metallurgical process, petro-chemical process, batteries, paper and pulp (Iqbal and . Kinetics, thermodynamics and competitive adsorption of lead and zinc ions onto termite mound

  • Adsorption Processes for Water Treatment and Purification

    This book provides researchers and graduate students with an overview of the latest developments in and applications of adsorption processes for water treatment and purification.

  • Retraction Note to: Simulations and experimental .

    Jun 03, 2019 · Retraction Note to: Simulations and experimental investigations of the competitive adsorption of CH4 and CO2 on low-rank coal vitrinite. . China University of Mining & Technology, Xuzhou, 221116, China. (5)China Northeastern Coalfield Geological Bureau Oil & Gas Development Institute, Shengyang, 110013, China.

  • Competitive adsorption in a ternary system . - SpringerLink

    Jun 28, 2017 · The presence of competing metals in industrial wastewater creates problems of selectivity for binding sites during biosorption of cationic metallic species on microbial cell surfaces. For this reason, modelling of adsorption and uptake of multimetal solutions based on observation of performance of single metal species since this neglects the competition for reactive sites typical in multimetal .

  • Competitive sorption and availability of coexisting heavy .

    Competitive sorption and availability of coexisting heavy metals in mining-contaminated soil: Contrasting effects of mesquite and fishbone biochars. Author links open overlay panel Yassir Abdin a Adel Usman a b Yong Sik Ok c Yiu Fai Tsang d Mohammad Al-Wabel a d. . There is a competitive adsorption between Cd, Pb, Cu and Zn. .

  • Characterization of CO2/CH4 Competitive Adsorption in .

    CO2 sequestration and enhanced gas recovery (CS-EGR) is a viable option with enormous potentials to produce shale gas. However, the microscopic competitive sorption behaviors of CH4 and CO2 in various clay minerals that are an important constituent of shale at actual formation conditions are still less clear. In this work, we study CO2/CH4 binary mixture competitive sorption in various clay .