Induced calcium carbonate precipitation using Bacillus species | Zendy

Mostafa Seifan | Zendy; Ali Khajeh Samani | Zendy; Aydin Berenjian | Zendy

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Induced calcium carbonate precipitation using Bacillus species

Author(s) -

Mostafa Seifan,

Ali Khajeh Samani,

Aydin Berenjian

Publication year - 2016

Publication title -

applied microbiology and biotechnology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.074

H-Index - 221

eISSN - 1432-0614

pISSN - 0175-7598

DOI - 10.1007/s00253-016-7701-7

Subject(s) - calcium carbonate , bacillus licheniformis , calcium , carbonate , precipitation , chemistry , yeast extract , biomineralization , bacteria , food science , chemical engineering , fermentation , biology , organic chemistry , physics , bacillus subtilis , meteorology , engineering , genetics

Microbially induced calcium carbonate precipitation is an emerging process for the production of self-healing concrete. This study was aimed to investigate the effects and optimum conditions on calcium carbonate biosynthesis. Bacillus licheniformis, Bacillus sphaericus, yeast extract, urea, calcium chloride and aeration were found to be the most significant factors affecting the biomineralization of calcium carbonate. It was noticed that the morphology of microbial calcium carbonate was mainly affected by the genera of bacteria (cell surface properties), the viscosity of the media and the type of electron acceptors (Ca 2+ ). The maximum calcium carbonate concentration of 33.78 g/L was achieved at the optimum conditions This value is the highest concentration reported in the literature.

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