Preparation and characterization of microfiltration ceramic membranes based on natural quartz sand
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66.02 (11)
Химическая технология. Химическая промышленность. Родственные отрасли (1496)
SM ISO690:2012
IVANETS, Andrei, AGABEKOV, Vladimir. Preparation and characterization of microfiltration ceramic membranes based on natural quartz sand. In: Chemistry Journal of Moldova, 2017, vol. 12, pp. 67-73. ISSN 1857-1727. DOI: https://doi.org/10.19261/cjm.2017.407
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Chemistry Journal of Moldova
Volumul 12 / 2017 / ISSN 1857-1727 /ISSNe 2345-1688

Preparation and characterization of microfiltration ceramic membranes based on natural quartz sand
DOI: https://doi.org/10.19261/cjm.2017.407
CZU: 66.02

Pag. 67-73

Ivanets Andrei1, Agabekov Vladimir2
 
1 Институт общей и неорганической химии НАНБ,
2 Institute of Chemistry of New Materials, National Academy of Sciences
 
Disponibil în IBN: 15 august 2017


Rezumat

The effect of phase and chemical composition of natural quartz sand, binder and burnable additives was studied. The conditions of application of the membrane and biocide layers on the formation of porous ceramic and microfiltration membranes were investigated. It is shown that a crystalline oxide of Si(IV) is determinant for obtaining the ceramic materials. The presence of carbonates (calcite, dolomite, aragonite, etc.) and crystalline aluminosilicates (microcline, albite, phlogopit, etc.) leads to a decrease in mechanical strength of ceramics. The ceramic samples with porosity 30-34% and mechanical strength >35 MPa were obtained. Microfiltration membranes are characterized by an average pore size of 4.3 μm and water permeability of 36.3 m3/(h·m2·bar). The biocide coating designed to protect the ceramic membrane surfaces from biofouling was applied and its anti-bacterial activity was shown.

Cuvinte-cheie
ceramic, membrane, microfiltration, quartz sand