The Open Microbiology Journal




ISSN: 1874-2858 ― Volume 12, 2018
RESEARCH ARTICLE

Cadmium Removal from Aqueous Solutions by Strain of Pantoea agglomerans UCP1320 Isolated from Laundry Effluent



Leonila. M. L. Acioly1, 5, Davi Cavalcanti1, 5, Marcos C. Luna2, 5, José C. V. Júnior3, 5, Rosileide F. S. Andrade4, 5, Thayse A. de Lima e Silva4, 5, Camilo E. La Rotta5, Galba M. Campos-Takaki5, *
1 Post Graduate Program in Biological Sciences, Federal University of Pernambuco, 50670-420, Recife, PE, Brazil
2 Northeast Network for Biotechnology-RENORBIO, Federal Rural University of Pernambuco, 52171-900 Recife-PE, Brazil
3 Autarchy of Higher Education of Garanhuns (AESGA), 55295-380 Garanhuns, Pernambuco, Brazil
4 National Post-Doctorate Program (PNPD)-CAPES, Catholic University of Pernambuco, 50050-900, Recife, Pernambuco, Brazil
5 Nucleus of Research in Environmental Sciences and Biotechnology, Catholic University of Pernambuco, 50050-590, Recife, PE, Brazil

Abstract

Background:

Cadmium (Cd), which is a deadly heavy metal of work-related and environmental concern, has been recognized as a substance that is teratogenic and carcinogenic for humans. Therefore, the need to develop low-cost adsorbents to remove heavy metals from aqueous solution has greatly increased. Adsorbents such as Pantoea agglomerans biomass have been used.

Aims:

We investigated the biotechnological potential of Pantoea agglomerans for the biosorption of cadmium from aqueous solution.

Patients and Methods:

Pantoea agglomerans UCP1320 isolated from the effluent of a laundry industry was used to remove cadmium from aqueous solutions. Two approaches were compared using active or thermally inactivated biomass. Three different cadmium concentrations of 1, 10 and 100 ppm were used under constant stirring at temperatures of 25°C and 35°C as was pH of 3.0, 5.0 and 7.0. Variable incubation times of 1, 6, and 24h were also studied.

Results:

The results showed that the temperature did not influence the uptake of metal by living cells nor by inactive bacterial biomass. However, increasing the pH had a positive effect on removing intermediate concentrations of cadmium. Low concentrations of cadmium were completely removed by both live and inactive biomass.

Conclusion:

Pantoea agglomerans biomass was shown to have a promising performance for the biotechnological removal of cadmium which had been dissolved in aqueous solution.

Keywords: Pantoea agglomerans, Pollution, Heavy metal, Biosorption, Absorption isotherms, Pollutants.


Article Information


Identifiers and Pagination:

Year: 2018
Volume: 12
First Page: 297
Last Page: 307
Publisher Id: TOMICROJ-12-297
DOI: 10.2174/1874285801812010297

Article History:

Received Date: 30/6/2018
Revision Received Date: 12/8/2018
Acceptance Date: 16/8/2018
Electronic publication date: 31/08/2018
Collection year: 2018

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© 2018 Leandro Acioly et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


* Address correspondence to this author at the Nucleus of Research in Environmental Sciences and Biotechnology, Catholic University of Pernambuco, 50050-590, Recife, PE, Brazil; Tel: + 55 81 2119 4017; E-mail: galba_takaki@yahoo.com.br


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