Regeneration possibilities and application of magnetically modified
In contrast with studies focused on sorption properties of magnetically modified biochar from laboratory-prepared solution and following recycling, the present article is focused on the natural conditions during the sorption process, changes of composite properties after reusability tests in various extraction agents and the changes …
Magnetically modified montmorillonite
Magnetically modified montmorillonite (MMt) was tested as a sorbent for the elimination of heavy metals ions from aqueous solutions. Zn(II), Cd(II), Pb(II) ions and their combination were successfully sorbed by magnetic composite (MMt). ... Sorption experiment was carried out in various solid-to-liquid ratios – 0.1 g/25 ml and 0.1 g/100 ml ...
Biosorption of uranium by magnetically modified
The used volume of magnetically modified yeast cell suspension was 0.1 mL (dry weight = 51.5 mg/mL × 0.1 mL = 5.15 mg). As can be seen from Fig. 1, uranium sorption capacity (q) and uranium sorption ratio (r) Conclusion. R. glutinis was magnetically modified and used as magnetic biosorbent to absorb uranium. The effect …
Lead ferrite-activated carbon magnetic composite for …
Open access. Published: 23 June 2022. Lead ferrite-activated carbon magnetic composite for efficient removal of phenol from aqueous solutions: synthesis, characterization, and …
Biosorption of uranium by magnetically modified
Rhodotorula glutinis. Adsorption of uranium from aqueous solution onto the magnetically modified yeast cell, Rhodotorula glutinis, was investigated in a batch system. Factors influencing sorption such as initial solution pH, biomass dosage, contact time, temperature, initial uranium concentration and other common cations were analyzed.
Lead and cadmium sorption mechanisms on magnetically …
Lead and cadmium sorption mechanisms on magnetically modified biochars. | Semantic Scholar. DOI: 10.1016/j.biortech.2015.12.056. Corpus ID: …
Lead and cadmium sorption mechanisms on magnetically …
Lead. This paper discusses Cd (II) and Pb (II) sorption efficiency of biochars modified by impregnation with magnetic particles. All selected biochar characteristics were …
Co-existing TiO2 nanoparticles influencing adsorption/ desorption of
Co-existing TiO 2 nanoparticles influencing adsorption/ desorption of tetracycline on magnetically modified kaolin. Author links open overlay panel Teng Wang a, Zhaofu Meng a b, Hua Jiang c, Xiuxian Sun a, Lancui Jiang a. ... The mechanism of cadmium sorption by sulphur-modified wheat straw biochar and its application …
Magnetically superhydrophobic kapok fiber for selective sorption …
The FTIR spectra of raw, NaClO 2-treated, and modified kapok fibers are shown in Fig. 2 a. Comparing the spectra of these three fibers, the following results can be obtained. The intensity of the peaks around 1245 (C O bending vibration) and 1739 cm −1 (C O stretching vibration), which is associated with ketones, carboxylic groups and …
A potential method using magnetically modified wheat …
After biochar is magnetically modified, sorption behaviors of HMs by the magnetic biochars produced at low and high pyrolysis temperatures might be obviously different. The major objectives of this work were to investigate the changes in concentrations and chemical fractions of Cd in soils before and after MMB extraction …
Lead ions sorption using magnetically modified sorbent …
Non-magnetic TiO 2 powder and magnetically modified TiO 2 powder were employed for sorption experiments; the magnetically modified TiO 2 particles allow magnetic separation of the sorbents with already adsorbed ions of pollutants. FeSO 4.7H 2 O was used for synthesis of magnetically responsive TiO 2.A detailed study of the …
Magnetically separable and recyclable lanthanum/iron co-modified …
The sorption process of different lanthanum concentrations modified M-FeAP was presented in Fig. S1(a).With the increase of lanthanum concentration, the maximal adsorption capacity of the 0.01 mol/L and 0.02 mol/L La-modified M-FeAP (M-La 0.01 FeAP and M-La 0.02 FeAP) could reach as high as 32.88 mg/g and 50.30 mg/g, …
Magnetically Modified Hydroxyapatite Nanoparticles for …
Recently, magnetically modified nanomaterials have gained a great interest in the field of wastewater remediation. In this regard, the present work introduces a facile microwave-assisted pathway ...
Lead ions sorption using magnetically modified sorbent …
Non-magnetic TiO2 powder and magnetically modified TiO2 powder were employed for sorption experiments; the magnetically modified TiO2 particles allow magnetic separation of the sorbents with already adsorbed ions of pollutants. FeSO4.7H2O was used
Biosorption of uranium by magnetically modified …
Abstract. Adsorption of uranium from aqueous solution onto the magnetically modified yeast cell, Rhodotorula glutinis, was investigated in a batch system. Factors influencing sorption such as initial solution pH, biomass dosage, contact time, temperature, initial uranium concentration and other common cations were analyzed.
Superhydrophobically modified kapok fiber and powder: …
In this study, KF and KP were modified and evaluated to explore the surface characteristics and the mesoporous structure by different means. This work aims to provide a theoretical explanation on the changes of oil sorption and superficial wettability which may promote a larger scale use of this abundant renewable resource. 2. Materials and …
Magnetically modified montmorillonite
Magnetically modified montmorillonite - characterisation, sorption properties and stability (PDF) Magnetically modified montmorillonite - characterisation, sorption properties and stability | Jana Seidlerová - Academia.edu
Magnetically modified montmorillonite
Magnetically modified montmorillonite - characterisation, sorption properties and stability Author(s) ... The amounts of ions removed by Mt and MMt were comparable. Therefore, magnetisation of Mt did not influence its sorption capacity. The composite can be easily removed by a magnetic field from the solution after sorption. (C) 2019 Elsevier ...
Lead and cadmium sorption mechanisms on magnetically …
Abstract. This paper discusses Cd (II) and Pb (II) sorption efficiency of biochars modified by impregnation with magnetic particles. All selected biochar …
Removal of dyes by adsorption on magnetically modified activated …
The ability of magnetically modified activated sludge affected by thermal treatment to remove water-soluble organic dyes was examined. Twelve different dyes were tested. Based on the results of the initial sorption study, four dyes (namely aniline blue, Nile blue, Bismarck brown Y and safranin O) were chosen for further experiments due to …
Removal of р-nitrophenol from aqueous solution by magnetically modified …
All the sorption experiments were carried out in 100-mL iodine flasks by adding 0.2 g of MAC-1 (or MAC-2) to 25 mL of aqueous PNP solution and shaking in a shaking thermostatic bath pH=7.0, for 90 min, at 288, 303, and 318 K to reach equilibrium. Sorption iso-therms were studied in the range of 100–350 mg L −1 for MAC-1
Biosorption of uranium by magnetically modified …
The sorption of Sr2+ ions from aqueous solutions on magnetically modified fodder yeast (Kluyveromyces fragilis) cells and their subsequent desorption were studied and the maximum adsorption capacity was 140.8 mg g−1 under optimal conditions.
Lead and cadmium sorption mechanisms on magnetically …
Magnetization mainly improved sorption of biochars with well-developed structure. The CEC value significantly increased due to the presence of Fe oxides in …
Phosphate Removal Using Non-Modified and Magnetically Modified
Abstract. Phosphate sorption on sodium montmorillonite and its magnetically modified (using iron oxide) form was studied. The chemical composition and specific surface area of both non-magnetic ...
Magnetically modified hydroxyapatite nanoparticles for …
Magnetically modified hydroxyapatite nanoparticles were prepared and characterized. • Sorption behavior towards U(VI) ions was investigated. • The optimum sorption conditions were determined. • Thermodynamic, kinetic and isotherm of the sorption process were evaluated. • Uranium(VI) recovery and adsorbent reusability …
Experimental verification of regenerable magnetically modified
Therefore, this study aims to assess the application of magnetically modified montmorillonite (MMt) to eliminate Zn(II), Cd(II) and Pb(II) cations from metallurgical waste leachates. First, model solutions were prepared to describe the properties of MMt, sorption kinetic and isotherm models. The determined elimination …
Biosorption of uranium by magnetically modified …
Sorption isotherm, kinetic and thermodynamic studies of uranium on magnetically modified R. glutinis were also carried out. The temperature dependent equilibrium data agreed well with the Langmuir ...
Adsorption behaviors and mechanisms of Cu2+, Zn2+ and …
Magnetically modified lignite (MML) was prepared by the chemical co-precipitation method. Static beaker experiments and dynamic continuous column experiments were set up to explore the adsorption ...
Lead and cadmium sorption mechanisms on magnetically …
Abstract. This paper discusses Cd (II) and Pb (II) sorption efficiency of biochars modified by impregnation with magnetic particles. All selected biochar characteristics were significantly affected after the modification. More specifically, the …
Lead and cadmium sorption mechanisms on magnetically modified …
Lead and uranium sorptive removal from aqueous solution using magnetic and nonmagnetic fast pyrolysis rice husk biochars. This paper discusses the sorption characteristics of Pb (ii) and U (vi) on magnetic and nonmagnetic rice husk biochars. The porosity, specific surface area, hydrophobility, and reusability of biochar….
