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The adsorption isotherms obtained could be well fitted to 20 both the mono and multimetal models. In the competitive adsorption systems, cabbage waste 21 adsorbed larger amount of Pb(II) than the other three metals. However, the presence of the 22 competing ions suppressed the sorption of the target metal ions. Except the case of binary
Fixedbed adsorption studies using chitosancoated bentonite (CCB) as adsorbent media were investigated for the simultaneous adsorption of Pb(II), Cu(II), and Ni(II) from a multimetal system. The effects of operational parameters such as bed height, flow rate, and initial concentration on the length of mass transfer zone, breakthrough time, exhaustion time, and adsorption capacity at ...
Easily separated novel magnetic composite, derived from a kind of green macroalgae—Enteromorpha prolifera, was employed for effective adsorption of radioactive cobalt (60 Co) and nickel (63 Ni). The characteristics and adsorption mechanisms of the magnetic E. prolifera composite (MEPE) were investigated by VSM, XRD, FTIR, SEM, TEM, BET, and XPS. The results indicated that the saturated ...
Apr 15, 2020· CETCO''s Fluorosorb resists competitive adsorption from other water and sediment contaminants. Because of its higher adsorption properties and higher density, it requires fewer change outs than granular activated carbon (GAC), lowering the total cost of ownership. ... Canadian Mining Journal provides information on new Canadian mining and ...
July 2004 · Zhongguo Kuangye Daxue Xuebao/Journal of China University of Mining and Technology. ... the predominant position while N 2 is in an inferior position in the competitive adsorption ...
The behavior in competitive adsorptiondesorption reactions of Cu and Zn was studied in four calcareous soils. Cu and Zn were added to the soil by Cu, Zn, and Cu+Zn sulfate solutions in a CaSO4 ...
Aug 18, 2006· Competitive Adsorption of Naphthalene with 2,4Dichlorophenol and 4Chloroaniline on Multiwalled Carbon Nanotubes. Environmental Science Technology 2010, 44 (8), . DOI: /es100018a. Kun Yang, Wenhao Wu, Qingfeng Jing, Wei Jiang and Baoshan Xing .
Singlecomponent and competitive adsorption of tetracycline (TC) and Zn(II) on an NH 4 Clinduced magnetic ultrafine buckwheat peel powder biochar (NH 4 ClBHPchar/Fe 3 O 4) was investigated in batch 4 ClBHPchar/Fe 3 O 4 exhibited a large surface area of m 2 g −1 and a total pore volume of cm 3 g −1 and was easily separated from aqueous solution using a ...
There exists a competitive adsorption between FDN and STPP. It can be inferred that FDN amount in liquid increases because of the competitive adsorption. In the presence of g/L FDN solution and different dosages of STPP, adsorption amount of FDN with different storing time was tested. The results are shown in
The competitive adsorptions of CH 4 /CO 2 /H 2 O on coal vitrinite (DV8, C 214 H 180 O 24 N 2) were computed based on density function theory (DFT) and grand canonical Monte Carlo (GCMC).The adsorption process reaches the saturation state after adsorbing 17 CH 4 s, 22 CO 2 s, and 35 H 2 Os per C 214 H 180 O 24 N 2 respectively. The optimal configurations of CH 4 –vitrinite, CO 2 ...
Previously, Dando and Lindsay [1] reported on the competitive adsorption of HF and SO 2 on smelter grade alumina by investigating the temporal breakthrough behavior of both HF gas and SO 2 gas to quantify the mechanisms behind adsorption of both gases on the same particle of alumina. In this paper followon work is presented where this research ...
The adsorption of As(V) by some natural Fe oxyhydroxides and clay minerals and synthetic Al(OH) 3 and FeOOH has been studied. The results show a very high As(V) adsorption capacity on both synthetic Al hydroxide (122 mg/g at pH: 5) and Fe oxyhydroxide (76 mg/g at pH 5). This adsorption capacity is pH dependent and shows maximum values at ∼pH 4.
The adsorption of gas mixtures is compared with that of pure gases to reveal the behavior of competitive adsorption under the shale reservoir conditions. The SLDPR EOS model is then applied for predicting the adsorption of CH 4 and C 2 H 6 on both shale samples to evaluate its efficiency in predicting the adsorption of shale hydrocarbons.
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 pseudosecondorder model, consistent with the adsorption kinetics analysis above.
Adsorption studies of cobalt(II) on manganese dioxide from aqueous solutions. The International Journal of Applied Radiation and Isotopes 1981, 32 (10), 747752. DOI: /X(81)900235. Mark M Benjamin, James O Leckie. Competitive adsorption of cd, .
Competitive adsorption of metals on cabbage waste from multimetal solutions. ... Strategic Water Infrastructure Laboratory, School of Civil Mining and Environmental Engineering, University of ... The adsorption isotherms obtained could be well fitted to both the mono and multimetal models. In the competitive adsorption systems, cabbage waste ...
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,, and % CO2 using a ...
Single and competitive adsorption of Cd(II) and Pb(II) ions from aqueous solutions onto industrial chili seeds (Capsicum annuum) waste ... the environment, such as mining and smelting of metals ...
competitive metal adsorption phenomena in acid mine drainage treatment using blast furnace slag as functional adsorbent world mining congress ... Get Price; Competitive Adsorption of Heavy Metals onto . Competitive Adsorption of Heavy Metals onto Natural and Activated Clay: Equilibrium, Kinetics and Modeling ... Competitive equilibrium ...
Jul 21, 2017· The competitive adsorptions of CH4/CO2/H2O on coal vitrinite (DV8, C214H180O24N2) were computed based on density function theory (DFT) and grand canonical Monte Carlo (GCMC). The adsorption process reaches the saturation state after adsorbing 17 CH4s, 22 CO2s, and 35 H2Os per C214H180O24N2 respectively.
CO2 sequestration and enhanced gas recovery (CSEGR) 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 ...
The results clearly indicated competitive adsorption among metals with the highest adsorption preference toward Pb. The removal efficiency and partition coefficient (PC) values of heavy metals for FBCs were higher than those for MBCs. These two values increased with MBC pyrolysis temperature under both single and multimetals adsorption ...
Competitive adsorption hindering the initiation of coal spontaneous combustion. • The adsorption selectivity of different gases on coal surface: CO 2 > CH 4 > O 2 > N 2.. Irreversible chemical adsorption of O 2 is dominant as the temperature increased.. Oxidation reaction between O 2 and CH 4 at 220 °C accelerates coal spontaneous combustion.. The most unstable aliphatic –CH 3 /–CH 2 ...
The results of the experiments confirmed that adsorption from singlemetal solution was more effective than adsorption under multimetal conditions due to competitive effects. Also, the adsorption of the metals decreased with increase in the number of competing ions.
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