Cargando…

Zinc-Containing Effluent Treatment Using Shewanella xiamenensis Biofilm Formed on Zeolite

The sorption properties of Shewanella xiamenensis biofilm formed on zeolite (mineral-organic sorbent) as a sorbent have been investigated aiming to determine its suitability for complex zinc-containing effluent treatment. The optimum conditions for metal sorption from synthetic solutions were evalua...

Descripción completa

Detalles Bibliográficos
Autores principales: Zinicovscaia, Inga, Yushin, Nikita, Grozdov, Dmitrii, Abdusamadzoda, Daler, Safonov, Alexey, Rodlovskaya, Elena
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8038228/
https://www.ncbi.nlm.nih.gov/pubmed/33918384
http://dx.doi.org/10.3390/ma14071760
_version_ 1783677326744092672
author Zinicovscaia, Inga
Yushin, Nikita
Grozdov, Dmitrii
Abdusamadzoda, Daler
Safonov, Alexey
Rodlovskaya, Elena
author_facet Zinicovscaia, Inga
Yushin, Nikita
Grozdov, Dmitrii
Abdusamadzoda, Daler
Safonov, Alexey
Rodlovskaya, Elena
author_sort Zinicovscaia, Inga
collection PubMed
description The sorption properties of Shewanella xiamenensis biofilm formed on zeolite (mineral-organic sorbent) as a sorbent have been investigated aiming to determine its suitability for complex zinc-containing effluent treatment. The optimum conditions for metal sorption from synthetic solutions were evaluated by changing the pH, zinc concentration, temperature, and time of sorption. The highest removal of metal ions was attained at pH range 3.0–6.0 within 60–150 min of sorbent-sorbate contact. The results obtained from the equilibrium studies were described using the Langmuir, Freundlich, and Temkin models. Maximum sorption capacity of the sorbent calculated from the Langmuir model changed from 3.4 to 6.5 mg/g. High coefficient of determination values calculated for pseudo-second-order and Elovich models indicate the predominant role of chemisorption in metal removal. Gibbs energy and ∆H° values point at the spontaneous and endothermic character of the sorption. The effect of pH and biosorbent mass on Zn(II) sorption from industrial effluent with an initial Zn(II) concentration of 52.8 mg/L was tested. Maximum removal of zinc ions (85%) was achieved at pH 6.0 by applying a two-step treatment system.
format Online
Article
Text
id pubmed-8038228
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-80382282021-04-12 Zinc-Containing Effluent Treatment Using Shewanella xiamenensis Biofilm Formed on Zeolite Zinicovscaia, Inga Yushin, Nikita Grozdov, Dmitrii Abdusamadzoda, Daler Safonov, Alexey Rodlovskaya, Elena Materials (Basel) Article The sorption properties of Shewanella xiamenensis biofilm formed on zeolite (mineral-organic sorbent) as a sorbent have been investigated aiming to determine its suitability for complex zinc-containing effluent treatment. The optimum conditions for metal sorption from synthetic solutions were evaluated by changing the pH, zinc concentration, temperature, and time of sorption. The highest removal of metal ions was attained at pH range 3.0–6.0 within 60–150 min of sorbent-sorbate contact. The results obtained from the equilibrium studies were described using the Langmuir, Freundlich, and Temkin models. Maximum sorption capacity of the sorbent calculated from the Langmuir model changed from 3.4 to 6.5 mg/g. High coefficient of determination values calculated for pseudo-second-order and Elovich models indicate the predominant role of chemisorption in metal removal. Gibbs energy and ∆H° values point at the spontaneous and endothermic character of the sorption. The effect of pH and biosorbent mass on Zn(II) sorption from industrial effluent with an initial Zn(II) concentration of 52.8 mg/L was tested. Maximum removal of zinc ions (85%) was achieved at pH 6.0 by applying a two-step treatment system. MDPI 2021-04-02 /pmc/articles/PMC8038228/ /pubmed/33918384 http://dx.doi.org/10.3390/ma14071760 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zinicovscaia, Inga
Yushin, Nikita
Grozdov, Dmitrii
Abdusamadzoda, Daler
Safonov, Alexey
Rodlovskaya, Elena
Zinc-Containing Effluent Treatment Using Shewanella xiamenensis Biofilm Formed on Zeolite
title Zinc-Containing Effluent Treatment Using Shewanella xiamenensis Biofilm Formed on Zeolite
title_full Zinc-Containing Effluent Treatment Using Shewanella xiamenensis Biofilm Formed on Zeolite
title_fullStr Zinc-Containing Effluent Treatment Using Shewanella xiamenensis Biofilm Formed on Zeolite
title_full_unstemmed Zinc-Containing Effluent Treatment Using Shewanella xiamenensis Biofilm Formed on Zeolite
title_short Zinc-Containing Effluent Treatment Using Shewanella xiamenensis Biofilm Formed on Zeolite
title_sort zinc-containing effluent treatment using shewanella xiamenensis biofilm formed on zeolite
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8038228/
https://www.ncbi.nlm.nih.gov/pubmed/33918384
http://dx.doi.org/10.3390/ma14071760
work_keys_str_mv AT zinicovscaiainga zinccontainingeffluenttreatmentusingshewanellaxiamenensisbiofilmformedonzeolite
AT yushinnikita zinccontainingeffluenttreatmentusingshewanellaxiamenensisbiofilmformedonzeolite
AT grozdovdmitrii zinccontainingeffluenttreatmentusingshewanellaxiamenensisbiofilmformedonzeolite
AT abdusamadzodadaler zinccontainingeffluenttreatmentusingshewanellaxiamenensisbiofilmformedonzeolite
AT safonovalexey zinccontainingeffluenttreatmentusingshewanellaxiamenensisbiofilmformedonzeolite
AT rodlovskayaelena zinccontainingeffluenttreatmentusingshewanellaxiamenensisbiofilmformedonzeolite