The study of the sorption properties of filtering materials based on titanium phosphate – porous titanium composition
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Date
2021
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КПІ ім. Ігоря Сікорського; ТОВ «Українська водна спілка»
Abstract
Inorganic sorbents are more selective in comparison with commercial ion exchange resins towards
of metal ions. However, inorganic sorbents characterized not high kinetic properties. One of the
way to increase the kinetic rate of inorganic sorbents is to reduce the particle size of these
materials, other way is synthesizing inorganic sorbents as porous products from powder materials.
A sample of such inorganic sorbents is titanium phosphate of various compositions.
Studying the properties of microfilters based on composition titanium phosphate - porous titanium
has been developed. The sorbents based on acidic titanium phosphate Ti(HPO4)2-H2O were used for
filtering solution with Fe(II) content. It is found that the number of impregnations with inorganic
sorbent modificator is important and influence filtration process. The obtained results
demonstrated that after the first impregnation of porous material with a smaller pore size, it is
possible to obtain such sorbent as a mass content of powder material. By varying the ionic form of
titanium phosphate, the porosity of titanium, the amount of impregnation, it could be possible effect
on the sorption Fe(II). The sorption properties of titanium-titanium phosphate microfilters were
studied by potentiometric titration in the NaCl-NaOH system, as well as the sorption of Fe2+ ions.
The degree of purification for Fe(II) from solution with a concentration of 10 mg/l is 64 %.
Application an electric potential to the microfilter of porous titanium - phosphate titanium
increases the degree of purification of Fe(II) to 88 %.
Description
Keywords
adsorption, inorganic sorbent, titanium phosphate, ion-exchange, microfilter, porous titanium, адсорбція, неорганічний сорбент, фосфат титану, іонний обмін, мікрофільтр, пористий титан
Citation
The study of the sorption properties of filtering materials based on titanium phosphate – porous titanium composition / V. A. Shablovski, А. V. Tuchkoskaya, V. А. Rukhlya, О. G. Pap, K. О. Kudelko // Вода і водоочисні технології. Науково-технічні вісті. – 2021. – № 3(31). – С. 19-25.