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Characterization of a Bioflocculant Produced by a Consortium of Halomonas sp. Okoh and Micrococcus sp. Leo

The physicochemical and flocculating properties of a bioflocculant produced by a bacterial consortium composed of Halomonas sp. Okoh and Micrococcus sp. Leo were investigated. The purified bioflocculant was cation and pH dependent, and optimally flocculated kaolin clay suspension at a dosage of 0.1...

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Autores principales: Okaiyeto, Kunle, Nwodo, Uchechukwu U., Mabinya, Leonard V., Okoh, Anthony I.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3823338/
https://www.ncbi.nlm.nih.gov/pubmed/24135818
http://dx.doi.org/10.3390/ijerph10105097
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author Okaiyeto, Kunle
Nwodo, Uchechukwu U.
Mabinya, Leonard V.
Okoh, Anthony I.
author_facet Okaiyeto, Kunle
Nwodo, Uchechukwu U.
Mabinya, Leonard V.
Okoh, Anthony I.
author_sort Okaiyeto, Kunle
collection PubMed
description The physicochemical and flocculating properties of a bioflocculant produced by a bacterial consortium composed of Halomonas sp. Okoh and Micrococcus sp. Leo were investigated. The purified bioflocculant was cation and pH dependent, and optimally flocculated kaolin clay suspension at a dosage of 0.1 mg/mL. The flocculating activity of the bioflocculant was stimulated in the presence of Ca(2+), Mn(2+), Al(3+) and had a wide pH range of 2–10, with the highest flocculating activity of 86% at pH 8. The bioflocculant was thermostable and retained more than 70% of its flocculating activity after being heated at 80 °C for 30 min. Thermogravimetric analyses revealed a partial thermal decomposition of the biofloculant at 400 °C. The infrared spectrum showed the presence of hydroxyl, carboxyl and amino moieties as functional groups. The bioflocculant produced by the bacterial consortium appears to hold promising alternative to inorganic and synthetic organic flocculants that are widely used in wastewater treatment.
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spelling pubmed-38233382013-11-11 Characterization of a Bioflocculant Produced by a Consortium of Halomonas sp. Okoh and Micrococcus sp. Leo Okaiyeto, Kunle Nwodo, Uchechukwu U. Mabinya, Leonard V. Okoh, Anthony I. Int J Environ Res Public Health Article The physicochemical and flocculating properties of a bioflocculant produced by a bacterial consortium composed of Halomonas sp. Okoh and Micrococcus sp. Leo were investigated. The purified bioflocculant was cation and pH dependent, and optimally flocculated kaolin clay suspension at a dosage of 0.1 mg/mL. The flocculating activity of the bioflocculant was stimulated in the presence of Ca(2+), Mn(2+), Al(3+) and had a wide pH range of 2–10, with the highest flocculating activity of 86% at pH 8. The bioflocculant was thermostable and retained more than 70% of its flocculating activity after being heated at 80 °C for 30 min. Thermogravimetric analyses revealed a partial thermal decomposition of the biofloculant at 400 °C. The infrared spectrum showed the presence of hydroxyl, carboxyl and amino moieties as functional groups. The bioflocculant produced by the bacterial consortium appears to hold promising alternative to inorganic and synthetic organic flocculants that are widely used in wastewater treatment. MDPI 2013-10-16 2013-10 /pmc/articles/PMC3823338/ /pubmed/24135818 http://dx.doi.org/10.3390/ijerph10105097 Text en © 2013 by the authors; licensee MDPI, Basel, Switzerland. http://creativecommons.org/licenses/by/3.0/ This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Okaiyeto, Kunle
Nwodo, Uchechukwu U.
Mabinya, Leonard V.
Okoh, Anthony I.
Characterization of a Bioflocculant Produced by a Consortium of Halomonas sp. Okoh and Micrococcus sp. Leo
title Characterization of a Bioflocculant Produced by a Consortium of Halomonas sp. Okoh and Micrococcus sp. Leo
title_full Characterization of a Bioflocculant Produced by a Consortium of Halomonas sp. Okoh and Micrococcus sp. Leo
title_fullStr Characterization of a Bioflocculant Produced by a Consortium of Halomonas sp. Okoh and Micrococcus sp. Leo
title_full_unstemmed Characterization of a Bioflocculant Produced by a Consortium of Halomonas sp. Okoh and Micrococcus sp. Leo
title_short Characterization of a Bioflocculant Produced by a Consortium of Halomonas sp. Okoh and Micrococcus sp. Leo
title_sort characterization of a bioflocculant produced by a consortium of halomonas sp. okoh and micrococcus sp. leo
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3823338/
https://www.ncbi.nlm.nih.gov/pubmed/24135818
http://dx.doi.org/10.3390/ijerph10105097
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