ECOLOGY AND ENVIRONMENTAL SECURITY

Researches of Sorbtive Extraction of Nickel(II) Ion by Bentonite Clay

Authors

H. V. Sakalova
Vinnytsia National Technical University ROR
T. M. Vasylinych
Vinnytsia Mykhailo Kotsiubynskyi State Pedagogical University ROR
H. D. Petruk
Vinnytsia Mykhailo Kotsiubynskyi State Pedagogical University ROR
O. A. Shevchuk
Vinnytsia Mykhailo Kotsiubynskyi State Pedagogical University ROR
DOI https://doi.org/10.31649/1997-9266-2019-143-2-21-26

Keywords

ecological safety natural clay sorbents adsorption ions of heavy metals

Abstract

The process of sorption of nickel(II) ions with a fixed layer of sorbent by bentonite clays has been investigated. The main advantages of using bentonites in water treatment technologies are described: powerful geological reserves, cheap rock formation, simple preparation for transportation and use, the possibility of using spent sorbents in other technologies, thus eliminating the need for expensive ones at the cost of regeneration.

The influence of different factors (length of process, layer of adsorbent) on the degree of wastewater treatment from nickel ions, influence of pump speed on dynamic capacitance of sorbent is investigated and effective volume is determined. The effectiveness of adsorption increases with increasing the layer of adsorbent, which can be explained by the development of active sorption surface. As the initial concentration of nickel ions increases, the time of appearance of the first traces is polluted at the exit of the column, as well as the total time before the breakthrough. The results of the studies indicate a higher adsorption capacity of modified bentonite in relation to Nickel ions compared with its natural form. The maximum absorption of nickel(II) ions in modified bentonite occurs at a layer of sorbent 20 g for 4,5 hours and is 73,4 %.

The results of the research indicate that the use of natural mineral sorbents is effective, in particular, the bentonite clay of Cherkassy deposit for cleaning of waste water from nickel(II) ions.

621 242

How to Cite

[1]
“Researches of Sorbtive Extraction of Nickel(II) Ion by Bentonite Clay”, Вісник ВПІ, no. 2, pp. 21–26, Apr. 2019, doi: 10.31649/1997-9266-2019-143-2-21-26.

Author Biographies

H. V. Sakalova, Vinnytsia National Technical University

Dr. Sc (Eng), Associate Professor, Associate Professor of the Chair of Chemistry and Methods of Teaching Chemistry; Professor of the Chair of Ecology and Environmental Safety

T. M. Vasylinych, Vinnytsia Mykhailo Kotsiubynskyi State Pedagogical University

Cand. Sc. (Eng), Associate Professor, Associate Professor of the Chair of Chemistry and Methods of Teaching Chemistry

H. D. Petruk, Vinnytsia Mykhailo Kotsiubynskyi State Pedagogical University

Cand. Sc. (Eng.), Associate Professor, Associate Professor of the Chair of Chemistry and Methods of Teaching Chemistry

O. A. Shevchuk, Vinnytsia Mykhailo Kotsiubynskyi State Pedagogical University

Cand. Sc.(Biology), Associate Professor, Associate Professor of the Chair of Biology

References

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