Calcium carbonate precipitation by urease and carbonic anhydrase positive bacteria

Autor:	Nazime Mercan Doğan, Erdal Akyol, Ömer Bozkaya, Buket Kabalay, Şevki Arslan, Tuğba Şensoy Candoğan, Naime Nur Bozbeyoğlu
Jazyk:	English<br />Turkish
Rok vydání:	2020
Předmět:	çökelim kalsiyum karbonat karbonik anhidraz üreaz üreolitik bakteriler precipitation calcium carbonate carbonic anhydrase urease ureolytic bacteria Engineering (General). Civil engineering (General) TA1-2040
Zdroj:	Pamukkale University Journal of Engineering Sciences, Vol 26, Iss 3, Pp 513-518 (2020)
Druh dokumentu:	article
ISSN:	1300-7009 2147-5881
Popis:	In present study, CaCO3 precipitation was examined in two ureolytic bacteria. Bacillus aerius U2 and Sporosarcina pasteurii ATCC 6453 were used as test organisms. The determination of urease and carbonic anhydrase enzyme activities were also determined. For further confirmation of the calcium carbonate mineral type produced by bacteria, XRD, SEM and EDX analysis were done. Strain U2 produced calcite and vaterite. In S. pasteurii ATCC 6453, only vaterite was found. The enzyme activity studies showed that both urease and carbonic anhydrase activities was 2-50-fold higher in S. pasteurii ATCC 6453 than B. aerius U2. Although, S. pasteurii ATCC 6453 was better option for microbial calcium carbonate precipitation (MCP) at higher temperature, by B. aerius U2 at lower temperature (
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/7d3708ad35e14e7b894cff77b7db61d0 Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF