cadmium adsorption on manganese modified

cadmium adsorption on manganese modified

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May 10, 2016  The modified surface of granulated activated carbon increased the adsorption capacity for adsorption of Cu 2 + and Cd 2 + greatly (Fan and Anderson, 2005). Puppa performed the adsorption of cations Cd 2 +, Zn 2 + and Cu 2 + on amorphous manganese oxides and synthetic birnessite (MnO 2) at pH 4 and 5.5. The both adsorbents were found to be ...

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Cadmium adsorption on manganese modified bentonite and bentonite–quartz sand blend. ... The bentonite from deposit Stará Kremnička and quartz sand from deposit Šaštín both from Slovakia were modified by manganese oxides in order to increase their sorption properties. At first, the natural bentonite was activated by Na2CO3.

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Request PDF Cadmium adsorption on manganese modified bentonite and bentonite–quartz sand blend The bentonite from deposit Stará Kremnička and quartz sand from deposit Šaštín both from ...

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In this work, a KMnO 4-modified-biochar-based composite material with manganese oxide produced at 600 °C was fabricated to investigate the sorption mechanism of Cd(II) and to comprehensively evaluate the effect of the modification on biochar properties.Cd(II) adsorption mechanisms were mainly controlled by interaction with minerals, complexation with oxygen-containing functional groups, and ...

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Original Research Sorption of Lead and Cadmium Cations on ...

Sorption of Lead and Cadmium Cations on Natural and Manganese-Modified Zeolite Anna M. Anielak1*, Rafał Schmidt2 1Faculty of Environmental Engineering, Cracow University of Technology, Poland 2Department of Water and Wastewater Technology, Koszalin University of Technology, Śniadeckich 2, 75-453 Koszalin, Poland Received: 27 May 2010

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Investigating the sorption behavior of cadmium from ...

Jan 06, 2018  In this work, a KMnO4-modified-biochar-based composite material with manganese oxide produced at 600 °C was fabricated to investigate the sorption mechanism of Cd(II) and to comprehensively evaluate the effect of the modification on biochar properties. Cd(II) adsorption mechanisms were mainly controlled by interaction with minerals, complexation with oxygen-containing

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Cadmium adsorption on manganese modified bentonite and ...

Request PDF Cadmium adsorption on manganese modified bentonite and bentonite–quartz sand blend The bentonite from deposit Stará Kremnička and quartz sand from deposit Šaštín both from ...

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Investigating the sorption behavior of cadmium from ...

Jan 06, 2018  In this work, a KMnO4-modified-biochar-based composite material with manganese oxide produced at 600 °C was fabricated to investigate the sorption mechanism of Cd(II) and to comprehensively evaluate the effect of the modification on biochar properties. Cd(II) adsorption mechanisms were mainly controlled by interaction with minerals, complexation with oxygen-containing

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Original Research Sorption of Lead and Cadmium Cations on ...

Sorption of Lead and Cadmium Cations on Natural and Manganese-Modified Zeolite Anna M. Anielak1*, Rafał Schmidt2 1Faculty of Environmental Engineering, Cracow University of Technology, Poland 2Department of Water and Wastewater Technology, Koszalin University of Technology, Śniadeckich 2, 75-453 Koszalin, Poland Received: 27 May 2010

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Influence of pH on Adsorption of Manganese Cadmium and ...

The influence of pH on the adsorption of heavy metals cadmium, manganese and cobalt was studied on a chemically modified clay. The isotherms were realized at pH 2; 3; 4 and 6.5. The heavy metals were applied as nitrates with initial concentrations ranging from 10 to 50 ppm. The adsorption was

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Removal of cadmium and lead from aqueous solutions by ...

Dec 15, 2020  From Table 3, both adsorption of cadmium and lead on T-EMR can be better expressed by the Freundlich isotherm model, which is inconsistent to the reported results for the adsorption of the metals on manganese dioxide (Qin et al., 2011), indicating that other factors, such as precipitation, complexation, may control the adsorption of the metals ...

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Adsorption of Cadmium, Manganese and Lead Ions from ...

The adsorption process of cadmium ions (Cd), manganese ions (Mn) and lead ions (Pb) onto the spent coffee grounds (SCG) and activated spent coffee grounds (biochar, A-SCG) was investigated. The SCG activation was carried out in the pyrolysis process in a fluidized bed reactor. scanning electron microscope (SEM) with energy dispersive X-ray spectroscopy (EDX), Fourier-transform infrared ...

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Lead and cadmium removal by adsorption process using ...

Jan 16, 2020  Similar observations were reported for the adsorption of lead and cadmium ions from aqueous solution onto different materials such as Schiff base-modified nanoparticles, amino-bacterial cellulose, modified biomass ash and manganese oxide minerals (Sönmezay et al. 2012; Lu et al. 2014; Herbache et al. 2016; Xu et al. 2017).

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Adsorption of Cd(II) ion from the solution using selective ...

Also, pen shells had a high selectivity to the cadmium ions In addition, the desorption efficiency of cadmium ions was about 98.0% at the 0.5M of HCl and adsorption capacity of cadmium ions for ...

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The Adsorption of Cd(II) on Manganese Oxide Investigated ...

Sep 28, 2017  2.2. Batch Adsorption. The batch adsorption experiments were conducted at pH 6 in the presence of 0.01 mol/L NaClO 4 conditions. The pH was adjusted to 6 in order to avoid the possible formation of Cd(OH) 2 (s) precipitates. The adsorption kinetics was performed at pH 6 and 0.01 mol/L NaClO 4 under the different adsorption time of 15, 30, 60, 90, 120, 180, and 240 min.

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Adsorption and redox reactions of heavy metals on ...

Adsorption and redox reactions of heavy metals on these minerals in rela Several Mn oxide minerals commonly occurring in soils were synthesized by modified or optimized methods. The morphologies, structures, compositions and surface properties of the synthesized Mn oxide minerals were characterized.

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(PDF) Microcolumn studies of dye adsorption onto manganese ...

Journal of Hazardous Materials 146 (2007) 316–327 Microcolumn studies of dye adsorption onto manganese oxides modified diatomite M.A. Al-Ghouti a,∗ , M.A.M. Khraisheh b , M.N. Ahmad c , S.J. Allen c aRoyal Scientific Society, Industrial Chemistry Centre, P.O. Box 1438, Al-Jubaiha 11941, Jordan b Department of Civil and Environmental Engineering, University College London, Chadwick ...

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Isotherm studies of lead(II), manganese(II), and cadmium ...

ABSTRACT This study was aimed at evaluating the isotherm of lead(II), manganese(II), and cadmium(II) adsorption in single and multimetal solutions using Nigerian bentonite. The natural and calcined clays were characterized for specific surface area, surface morphology, elemental composition, and cation exchange capacity (CEC). The adsorption data were analyzed and interpreted using

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Adsorption of copper, cadmium, lead and zinc onto a ...

Adsorption of copper, cadmium, lead and zinc onto a synthetic manganese oxide Loïc Della Puppa, François Bordas, Michael Komárek, Jean-Claude Bollinger, ... (AMO) was prepared according to a modified sol-gel procedure [17] (advised for the preparation of birnessite), consisting of adding 0.5 L of a

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Selective Adsorption of Cd(II) and Zn(II) Ions by Nano ...

Ultrafast sequestration of cadmium and lead from water by manganese oxide supported on a macro-mesoporous biochar. ... The Adsorption of Cd(II) on Manganese Oxide Investigated by Batch and Modeling Techniques. ... Multicarboxylic hyperbranched polyglycerol modified SBA-15 for the adsorption of cationic dyes and copper ions from aqueous media.

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Study on Adsorption of Cd by Manganese Modified Diatomite

once again proved the modified diatomite and manganese surface grafting, grafting mode of surface grafting, graft replacement. Manganese modified diatom surface, diatom and manganese modified form synergistic adsorption effect, adsorption Cd. 2+. In this study, we do some theoretical research on removal of heavy metal ions Cd. 2+

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Adsorption of Cadmium(II) Ion from Aqueous Solution onto a ...

This work was focused on evaluating the potential of bamboo powder modified with manganese oxide (MnO-BP) as a low-cost byproduct adsorbent for the adsorption of cadmium(II) ion. A batch method was carried out at room temperature and the optimized conditions. The optimization of adsorption parameters including pH, equilibrium time, dosage and initial Cd(II) concentration was also ...

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Adsorption of Cadmium, Manganese and Lead Ions from ...

Jun 20, 2020  Adsorption of Cadmium, Manganese and Lead Ions from Aqueous Solutions Using Spent Coffee Grounds and Biochar Produced by Its Pyrolysis in the Fluidized Bed Reactor. Jarosław Chwastowski Department of Inorganic Chemistry and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland.

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Adsorption of Cadmium, Manganese and Lead Ions from ...

The adsorption process of cadmium ions (Cd), manganese ions (Mn) and lead ions (Pb) onto the spent coffee grounds (SCG) and activated spent coffee grounds (biochar, A-SCG) was investigated. The SCG activation was carried out in the pyrolysis process in a fluidized bed reactor. scanning electron microscope (SEM) with energy dispersive X-ray spectroscopy (EDX), Fourier-transform infrared ...

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Cadmium adsorption on iron oxides in the presence of ...

Radiotracer technique in adsorption studies Part XVIII: Uptake of Ce(III) from aqueous solutions by hydrous manganese and stannic oxides. Journal of Radioanalytical and Nuclear Chemistry 2007 ,

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Adsorption of copper, cadmium, lead and zinc onto a ...

Adsorption of copper, cadmium, lead and zinc onto a synthetic manganese oxide Loïc Della Puppa, François Bordas, Michael Komárek, Jean-Claude Bollinger, ... (AMO) was prepared according to a modified sol-gel procedure [17] (advised for the preparation of birnessite), consisting of adding 0.5 L of a

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Enhanced removal of heavy metal ions from aqueous solution ...

Apr 08, 2020  Zhang et al. concluded that nanosized manganese oxide demonstrated high adsorption ... and manganese oxides modified diatomite. ... Simultaneous adsorption of lead and cadmium

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Adsorption Mechanisms of Manganese (II) Ions onto Acid ...

Jul 07, 2018  In this work, modification of Granular Activated Carbon (GAC) using nitric acid as an oxidizing agent was investigated to develop a novel adsorbent that can effectively remove manganese from aquatic environments. The results revealed that the acid modification method reduced BET surface area, micropore volume, and the point of zero charge (pHPZC) but produced more carboxylic acid

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Removal of Cadmium Ion from Water/Wastewater by Nano-metal ...

Nov 09, 2013  In addition, manganese dioxide (MnO 2) was also coated on acid oxidized multi-walled carbon nanotubes for removal of cadmium ion from water (Luo et al. 2013).Maximum Langmuir adsorption capacity observed was 41.6 mg/g. Adsorption isotherms were described by Langmuir model at different temperatures.

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Biochar Modified by Nano-manganese Dioxide as Adsorbent ...

Feb 25, 2020  Biochar (BC) as an adsorbent for antibiotics has been intensively investigated (Peiris et al. 2017).Its adsorption capacity for antibiotics, however, is generally low (Zhou et al. 2017).For example, BC produced from Robinia pseudoacacia had an OTC adsorption of 10–15 mg g −1 (Xiao et al. 2019).Thus, modifications of BC have been proposed to enhance its performance.

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Comparison of Four Amendments for Arsenic and Cadmium ...

Sep 21, 2020  Arsenic (As) and cadmium (Cd) are common soil pollutants whose opposing geochemical behaviors must be taken into account in the development of cost-effective, environmentally friendly remediation strategies. In this study, a pot experiment with lettuce and a field experiment with wheat were performed to examine the impacts of zeolite, biochar, MnO2, zero-valent iron (ZVI)

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Adsorption of Cd(II) ion from the solution using selective ...

Also, pen shells had a high selectivity to the cadmium ions In addition, the desorption efficiency of cadmium ions was about 98.0% at the 0.5M of HCl and adsorption capacity of cadmium ions for ...

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Multi-metals column adsorption of lead(II), cadmium(II ...

Jul 03, 2017  The adsorption capacities of lead(II) on a mass basis are higher than that of cadmium(II) and manganese(II), while cadmium(II) exhibits greater capacities on a molar basis . This is due to the high molar mass of lead(II) that brings about low molar concentration of

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Bacteria-modified red mud for adsorption of cadmium Ions ...

The adsorption data was correlated with Langmuir and Freundlich adsorption models. The maximum adsorption capacity obtained from Langmuir adsorption model was 83.034 mg/g. The kinetic processes of cadmium adsorption on bacteria-modified red mud were described by applying pseudo-first-order and pseudo-second-order rate equations.

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