Isolation and identification of bacteria utilizing microbially induced calcite precipitation (MICP) for the recycling waste concrete fines

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F23%3A43927849" target="_blank" >RIV/60461373:22330/23:43927849 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.icct.cz/cs/" target="_blank" >https://www.icct.cz/cs/</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Isolation and identification of bacteria utilizing microbially induced calcite precipitation (MICP) for the recycling waste concrete fines

Popis výsledku v původním jazyce

During concrete production, large quantities of carbon are released into the environment. A promising route to a more sustainable construction industry involves the use of microbially induced calcite precipitation (MICP) in concrete recycling. Here, we investigated utilizing the ureolytic activity of the alkaliphilic bacterium Sporosarcina pasteurii DSM 33 and other strains isolated from the sand as potential candidates for MICP. Powder samples of old waste concrete fines (WCF) were mixed with urea‒CaCl2 solution, in which ureolytic bacteria can precipitate CaCO3 crystals and support their formation in WCF. Scanning electron microscopy was used to characterize the crystals according to their properties. Thus, our results suggest that MICP-prepared WCF composites could be an effective way of recycling old concrete, thereby reducing the industry’s carbon footprint.

Název v anglickém jazyce

Isolation and identification of bacteria utilizing microbially induced calcite precipitation (MICP) for the recycling waste concrete fines

Popis výsledku anglicky

During concrete production, large quantities of carbon are released into the environment. A promising route to a more sustainable construction industry involves the use of microbially induced calcite precipitation (MICP) in concrete recycling. Here, we investigated utilizing the ureolytic activity of the alkaliphilic bacterium Sporosarcina pasteurii DSM 33 and other strains isolated from the sand as potential candidates for MICP. Powder samples of old waste concrete fines (WCF) were mixed with urea‒CaCl2 solution, in which ureolytic bacteria can precipitate CaCO3 crystals and support their formation in WCF. Scanning electron microscopy was used to characterize the crystals according to their properties. Thus, our results suggest that MICP-prepared WCF composites could be an effective way of recycling old concrete, thereby reducing the industry’s carbon footprint.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20801 - Environmental biotechnology

Projekt

<a href="/cs/project/GA22-02702S" target="_blank" >GA22-02702S: Mikrobiologicky indukované srážení kalcitu při recyklaci betonu pro produkci materiálů se zápornou uhlíkovou stopou</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the 10th International Conference on Chemical Technology

ISBN

978-80-88307-18-1

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

28-33

Název nakladatele

Czech Society of Industrial Chemistry

Místo vydání

Prague

Místo konání akce

Mikulov

Datum konání akce

24. 4. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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