Adsorption method of purification of stocks from chromium(III) ions by bentonite clays

• Autorzy: Soloviy Christina , Malovanyy Myroslav , Palamarchuk Olga , Trach Iryna , Petruk Halyna , Sakalova Halyna , Vasylinych Tamara , Vronska Nataliya

Identyfikatory

DOI

10.24425/jwld.2021.136152

• Języki publikacji: EN

Abstrakty

EN

The process of sorption of chromium(III) ions with a stationary sorbent layer of bentonite clays was investigated. The main advantages of using bentonites in water purification technologies are described: powerful geological reserves, cheap process of rock extraction, easy preparation for transportation and use, possibility of using waste sorbents in other technologies that is why there is no need in costly regeneration. The influence of various factors (process duration, an adsorbent layer) on the degree of wastewater purification from chromium ions, the effect of pumping speed on the dynamic capacity of the sorbent was studied and the effective volume was determined. The adsorption efficacy increases with the increase of the adsorbent layer, what can be explained by the development of the active sorption surface. As the initial concentration of chromium ions increases, the time of appearance of the first traces of the contaminant at the exit of the column increases, as well as the total time to channeling. The results of the studies indicate a higher adsorption capacity of modified bentonite with respect to Cr³⁺ ions compared to its natural formula. The cleaning efficacy of the solution with a concentration of chromium ions of 0.5 g∙dm^–3 is increased by 5% when using 15 g of modified bentonite and 6,5% in the case one uses 20 g compared to the natural form.

Słowa kluczowe

EN

adsorption; bentonite; chromium ions; environmental safety; natural clay sorbents; wastewater purification

• Wydawca: Wydawnictwo ITP
• Czasopismo: Journal of Water and Land Development
• Rocznik: 2021
• Tom: no. 48
• Strony: 99--104
• Opis fizyczny: Bibliogr. 23 poz., rys., tab.

Twórcy

autor

Soloviy Christina

• Lviv Polytechnic National University, Viacheslav Chornovil Institute of Sustainable Development, Department of Ecology and Sustainable Environmental Management, Lviv, Ukraine

• https://orcid.org/0000-0003-0751-6328

autor

Malovanyy Myroslav

• Lviv Polytechnic National University, Viacheslav Chornovil Institute of Sustainable Development, Department of Ecology and Sustainable Environmental Management, Lviv, Ukraine

• https://orcid.org/0000-0002-3868-1070

autor

Palamarchuk Olga

• Vinnytsia Mykhajlo Kotsiubynskyi State Pedagogical University, Educational and Scientific Institute of Pedagogy, Psychology, Department of Psychology and Social Work, Vinnitsa, Ukraine

• https://orcid.org/0000-0002-4196-088X

autor

Trach Iryna

• Vinnytsia National Technical University, Institute for Environmental Safety and Environmental Monitoring, Department of Ecology and Environmental Safety, Vinnitsa, Ukraine

• https://orcid.org/0000-0003-2985-4563

autor

Petruk Halyna

• Vinnytsia Mykhajlo Kotsiubynskyi State Pedagogical University, Faculty of Natural and Geography, Department of Chemistry, Vinnitsa, Ukraine

• https://orcid.org/0000-0002-8443-6105

autor

Sakalova Halyna

• Vinnytsia Mykhajlo Kotsiubynskyi State Pedagogical University, Faculty of Natural and Geography, Department of Chemistry, Vinnitsa, Ukraine

• https://orcid.org/0000-0002-9610-0967

autor

Vasylinych Tamara

• Vinnytsia Mykhajlo Kotsiubynskyi State Pedagogical University, Faculty of Natural and Geography, Department of Chemistry, Vinnitsa, Ukraine

• https://orcid.org/0000-0002-7148-9312

autor

Vronska Nataliya

• Lviv Polytechnic National University, Viacheslav Chornovil Institute of Sustainable Development, Department of Ecology and Sustainable Environmental Management, Lviv, Ukraine

• https://orcid.org/0000-0002-6569-3288

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).