Application of Sorbent Waste Material for Porous Ceramics Production

Свергузова, С. В.; Мирошниченко, Наталья Анатольевна; Шайхиев, И Г; Sapronova, Zh.A.; Фомина, Е. В.; Шакирова, А. Р.; Promakhov, Vladimir

doi:10.5829/ije.2021.34.03c.05

Cited by 3 publications

(1 citation statement)

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“…Figure 1a presents the XRD patterns of the unsintered membrane sample and those sintered at 1200 o C. It reveals that the crystalline phases detected for the un-sintered sample (M1) consists of kaolin at 2θ = 20.9 o and 24.9 o [16][17][18], quartz, zeolite at 2θ = 27.2 o [19], and calcite (CaCO3) at 2θ = 30 o . In the sample sintered at 1200 o C (CM1), a zeolite crystal is formed followed by cristobalite, mullite (3Al2O32SiO2), and then by the crystallization of gehlenite (Ca2Al2SiO7).…”

Section: Resultsmentioning

confidence: 99%

Characterization of Ceramic Membrane based on Calcium Carbonate from Onyx Stone and Its Application for Coconut Sap Treatment

Aripin

Priatna

Dedi

et al. 2022

IJE

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In this study, the calcium carbonate from onyx stone used as a pore-forming agent in the ceramic membrane of kaolin, zeolite, and silica xerogel composites were investigated. Four different membrane samples were prepared with varying onyx stone content from 5 wt.% to 30 wt.% into composite and then the prepared samples were sintered at 1200 o C. T he structural properties of the prepared sample was investigated in detail using X-ray diffraction (XRD), Fourier transform infrared (FT IR) spectroscopy, Scanning Electron Microscopy (SEM), and N2 adsorption-desorption isotherms. T he removal performance of the membrane was successfully tested during coconut sap treatment. It has been found that the prepared samples have a porous structure made up of interconnected pores and their volume fraction depends on onyx stone content. The sample with the onyx stone content of 30 wt.% provides the largest volume fraction of homogeneously interconnected pores and its presence demontrates the largest value for sap permeate flux and the flux rate in the initial phase. T he pores formed in this produced membrane provide favorable conditions for the removal of the non -sugar impurities in the coconut sap.

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Section: Resultsmentioning

confidence: 99%

Characterization of Ceramic Membrane based on Calcium Carbonate from Onyx Stone and Its Application for Coconut Sap Treatment

Aripin

Priatna

Dedi

et al. 2022

IJE

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Peculiarities of purification of natural water from iron compounds using ceramic membranes

Yarovaya

Averina

Bogatov

et al. 2021

IOP Conf. Ser.: Earth Environ. Sci.

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The paper deals with the issues of natural water purification from iron compounds. A comparison of polymeric and ceramic membranes is given. During the experiments, ceramic membranes modified with titanium and completed in a filtering element were used. Experiments on filtration of simulated solutions of ferric iron have been carried out. The dependence of the permeate flux on time for various initial concentrations of ferric iron and the dependence of the working pressure on the volume of the filtrate for various initial concentrations of ferric iron, at a constant filtration rate is shown. It was found that the residual concentrations of iron (III) compounds, regardless of the experimental conditions, met the regulatory requirements and did not exceed 0.3 mg/l. Based on the results obtained, flow diagrams of ultrafiltration units based on ceramic membranes were proposed.

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Catalytically active membranes for decomposition of organic compounds in aqueous solutions

Nyan

Aung

Yarovaya

et al. 2021

IOP Conf. Ser.: Earth Environ. Sci.

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This work is devoted to the preparation of microfiltration ceramic tubular membranes based on α-Al2O3 with deposited catalytically active layers for use in wastewater treatment processes. Cobalt and manganese oxides were used as the material of the catalytically active layer; deposition was carried out using a mixture of aggregative stable aqueous dispersions of Co3O4 and MnO2 nanoparticles. According to the data of scanning electron microscopy, the thickness of the obtained deposited layers does not exceed 3 μm. X-ray fluorescence analysis confirmed the presence of Mn and Co on the surface of the samples. The resulting membranes with a mass of 10 mg of the deposited layer of the oxide mixture were tested in the methylene blue decomposition reaction in dilute aqueous solutions (1,2 mg/L). The reaction was carried out in a batch reactor at room temperature, complete discoloration of the solution was observed after 180-240 minutes.

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Application of Sorbent Waste Material for Porous Ceramics Production

Cited by 3 publications

References 0 publications

Characterization of Ceramic Membrane based on Calcium Carbonate from Onyx Stone and Its Application for Coconut Sap Treatment

Characterization of Ceramic Membrane based on Calcium Carbonate from Onyx Stone and Its Application for Coconut Sap Treatment

Peculiarities of purification of natural water from iron compounds using ceramic membranes

Catalytically active membranes for decomposition of organic compounds in aqueous solutions

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