COMPOSITE SORBENTS BASED ON DIATOMITE-BENTONITE AND PAPER-PULP FOR THE REMOVAL OF HEAVY METALS

Authors

  • Sergey S. Hayrapetyan Center for Ecological Safety, YSU, Armenia
  • Martin S. Hayrapetyan Chair of Inorganic and Analytical Chemistry, YSU, Armenia
  • Armen I. Martiryan Chair of Inorganic and Analytical Chemistry, YSU, Armenia
  • Hranoush H. Darbinyan Chair of Inorganic and Analytical Chemistry, YSU, Armenia
  • Hambardzum H. Khachatryan Chair of Inorganic and Analytical Chemistry, YSU, Armenia

DOI:

https://doi.org/10.46991/PYSU:B/2021.55.2.125

Keywords:

composite sorbent, diatomite, bentonite, paper-pulp, heavy metals

Abstract

The sorption properties of organomineral composite sorbents have been investigated by ICP-MS method. The diatomite of the Jradzor deposit and bentonite of the Sarigyuh deposit (Armenia) were used as inorganic constituents. Diatomite serves as a structure-forming component and provides mass transfer due to its high porosity (V = 2.0 cm3/g) and large pore sizes (150–200 nm). Bentonite is responsible for the functionality of the sorbents. The organic component is also responsible for the functionality of the obtained sorbents. Paper pretreated with acids (nitric and phosphoric) was used as an organic component. A synthetic solution containing cations of heavy metals was used as an object of study. The experiments were carried out in static mode on a Jar-Test device.

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Published

2021-08-30

How to Cite

Hayrapetyan, Sergey S., Martin S. Hayrapetyan, Armen I. Martiryan, Hranoush H. Darbinyan, and Hambardzum H. Khachatryan. 2021. “COMPOSITE SORBENTS BASED ON DIATOMITE-BENTONITE AND PAPER-PULP FOR THE REMOVAL OF HEAVY METALS”. Proceedings of the YSU B: Chemical and Biological Sciences 55 (2 (255):125-35. https://doi.org/10.46991/PYSU:B/2021.55.2.125.

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Section

Chemistry