Manganese removal and product characteristics of a marine manganese-oxidizing bacterium Bacillus sp. FF-1 / Eliminación de manganeso y características del producto de una bacteria marina oxidante de manganeso Bacillus sp. FF-1
Int. microbiol
; 25(4): 701-708, Nov. 2022. ilus
Artigo
em Inglês
| IBECS
| ID: ibc-216238
Biblioteca responsável:
ES1.1
Localização: ES15.1 - BNCS
ABSTRACT
Biogenic manganese oxides (BioMnOx) have been found all over the world, and most of them were formed by Mn(II)-oxidizing bacteria (MnOB). In this study, a MnOB designated as FF-1 was isolated from marine surface sediments in the Bohai Sea, China. This strain was identified as Bacillus sp. and can tolerate more than 5% salinity. It can grow in the presence of 07 mM Mn(II) and pH range from 5.0 to 7.0. When the initial Mn(II) was 5 mM, the percentage of Mn(II) oxidation reached the highest value of 16% after 10 days of incubation. The initial pH (5.0 to 7.0) affected the percentage of Mn(II) oxidation, but the ability of the strain FF-1 to self-regulate pH resulted in the final pH being almost 7.6. The removal of Mn(II) by the strain FF-1 involves extracellular and intracellular adsorption as well as Mn(II) oxidation. Intracellular Mn adsorption contributed a small part to the total Mn removal, and extracellular adsorption was dominant in the initial stage of Mn removal. The solid products after Mn removal were a mixture of MnOx and MnCO3. The layered MnOx formed in the extracellular space could be easily collected and used for adsorption and oxidation of pollutants.(AU)
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Coleções:
Bases de dados nacionais
/
Espanha
Base de dados:
IBECS
Assunto principal:
Bacillus subtilis
/
Biodegradação Ambiental
/
Oxidação
/
Manganês
Limite:
Humanos
País/Região como assunto:
Ásia
Idioma:
Inglês
Revista:
Int. microbiol
Ano de publicação:
2022
Tipo de documento:
Artigo
Instituição/País de afiliação:
Dalian University of Technology/China
/
Liaoning Ocean and Fisheries Science Research Institute/China