Removal of Zn(II) from electroplating effluent using yeast biofilm formed on gravels: batch and column studies

BACKGROUND: Present study deals with the removal of Zn(II) ions from effluent using yeast biofilm formed on gravels. METHODS: The biofilm forming ability of Candida rugosa and Cryptococcus laurentii was evaluated using XTT (2,3-bis[2-methoxy-4-nitro-5-sulfophenyl]-2H-tetrazolium-5-carboxanilide) red...

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Autores principales: Basak, Geetanjali, V, Lakshmi, Chandran, Preethy, Das, Nilanjana
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2014
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3904462/
https://www.ncbi.nlm.nih.gov/pubmed/24397917
http://dx.doi.org/10.1186/2052-336X-12-8
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author Basak, Geetanjali
V, Lakshmi
Chandran, Preethy
Das, Nilanjana
author_facet Basak, Geetanjali
V, Lakshmi
Chandran, Preethy
Das, Nilanjana
author_sort Basak, Geetanjali
collection PubMed
description BACKGROUND: Present study deals with the removal of Zn(II) ions from effluent using yeast biofilm formed on gravels. METHODS: The biofilm forming ability of Candida rugosa and Cryptococcus laurentii was evaluated using XTT (2,3-bis[2-methoxy-4-nitro-5-sulfophenyl]-2H-tetrazolium-5-carboxanilide) reduction assay and monitored by scanning electron microscopy (SEM), and Confocal laser scanning microscopy (CLSM). Copious amount of extracellular polymeric substances (EPS) produced by yeast species was quantified and characterized by Fourier transform infrared spectroscopy (FT-IR). RESULTS: Yeast biofilm formed on gravels by C. rugosa and C. laurentii showed 88% and 74.2% removal of Zn(II) ions respectively in batch mode. In column mode, removal of Zn(II) ions from real effluent was found to be 95.29% by C. rugosa biofilm formed on gravels. CONCLUSION: The results of the present study showed that there is a scope to develop a cost effective method for the efficient removal of Zn(II) from effluent using gravels coated with yeast biofilm.
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spelling pubmed-39044622014-02-11 Removal of Zn(II) from electroplating effluent using yeast biofilm formed on gravels: batch and column studies Basak, Geetanjali V, Lakshmi Chandran, Preethy Das, Nilanjana J Environ Health Sci Eng Research Article BACKGROUND: Present study deals with the removal of Zn(II) ions from effluent using yeast biofilm formed on gravels. METHODS: The biofilm forming ability of Candida rugosa and Cryptococcus laurentii was evaluated using XTT (2,3-bis[2-methoxy-4-nitro-5-sulfophenyl]-2H-tetrazolium-5-carboxanilide) reduction assay and monitored by scanning electron microscopy (SEM), and Confocal laser scanning microscopy (CLSM). Copious amount of extracellular polymeric substances (EPS) produced by yeast species was quantified and characterized by Fourier transform infrared spectroscopy (FT-IR). RESULTS: Yeast biofilm formed on gravels by C. rugosa and C. laurentii showed 88% and 74.2% removal of Zn(II) ions respectively in batch mode. In column mode, removal of Zn(II) ions from real effluent was found to be 95.29% by C. rugosa biofilm formed on gravels. CONCLUSION: The results of the present study showed that there is a scope to develop a cost effective method for the efficient removal of Zn(II) from effluent using gravels coated with yeast biofilm. BioMed Central 2014-01-07 /pmc/articles/PMC3904462/ /pubmed/24397917 http://dx.doi.org/10.1186/2052-336X-12-8 Text en Copyright © 2014 Basak et al.; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Basak, Geetanjali
V, Lakshmi
Chandran, Preethy
Das, Nilanjana
Removal of Zn(II) from electroplating effluent using yeast biofilm formed on gravels: batch and column studies
title Removal of Zn(II) from electroplating effluent using yeast biofilm formed on gravels: batch and column studies
title_full Removal of Zn(II) from electroplating effluent using yeast biofilm formed on gravels: batch and column studies
title_fullStr Removal of Zn(II) from electroplating effluent using yeast biofilm formed on gravels: batch and column studies
title_full_unstemmed Removal of Zn(II) from electroplating effluent using yeast biofilm formed on gravels: batch and column studies
title_short Removal of Zn(II) from electroplating effluent using yeast biofilm formed on gravels: batch and column studies
title_sort removal of zn(ii) from electroplating effluent using yeast biofilm formed on gravels: batch and column studies
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3904462/
https://www.ncbi.nlm.nih.gov/pubmed/24397917
http://dx.doi.org/10.1186/2052-336X-12-8
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