On the possibility of using bacteria for recycling finest fractions of concrete waste: a critical review.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F23%3A43927610" target="_blank" >RIV/60461373:22330/23:43927610 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21110/23:00366484

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s11157-023-09654-3" target="_blank" >https://link.springer.com/article/10.1007/s11157-023-09654-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11157-023-09654-3" target="_blank" >10.1007/s11157-023-09654-3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

On the possibility of using bacteria for recycling finest fractions of concrete waste: a critical review.

Popis výsledku v původním jazyce

Introducing the principles of circular economy into the concrete industry would significantly contribute to the sustainability of this sector. Even though recycling ranks below waste elimination, the generation of concrete waste is inevitable, and modern recycling strategies cannot efficiently tackle waste concrete fines (WCF) that represent an enormous environmental burden. Inspired by recent advances in self-healing concretes and biocementation of loose soil, we propose harnessing bacteria for bonding WCF to form artificial rocks that could be used as construction material. The devised technology brings many obstacles that can be tackled based on extensive research offered in this critical review, focused mostly on different bacterial metabolic pathways resulting in calcite precipitation and their environmental impacts. The most frequently exploited pathway in materials engineering, ureolysis, was employed to demonstrate the technical feasibility of WCF recycling using Sporosarcina pasteurii. Despite promising results of this demonstration, an alternative approach must be sought to reduce the negative environmental impact associated with the use of ureolytic bacteria as it exceeds potential benefits. Such an approach could be based on the use of by-products from other industries to replace laboratory-grade chemicals, or on utilization of different metabolic pathways, such as carbonic anhydrase or methane oxidation.

Název v anglickém jazyce

On the possibility of using bacteria for recycling finest fractions of concrete waste: a critical review.

Popis výsledku anglicky

Introducing the principles of circular economy into the concrete industry would significantly contribute to the sustainability of this sector. Even though recycling ranks below waste elimination, the generation of concrete waste is inevitable, and modern recycling strategies cannot efficiently tackle waste concrete fines (WCF) that represent an enormous environmental burden. Inspired by recent advances in self-healing concretes and biocementation of loose soil, we propose harnessing bacteria for bonding WCF to form artificial rocks that could be used as construction material. The devised technology brings many obstacles that can be tackled based on extensive research offered in this critical review, focused mostly on different bacterial metabolic pathways resulting in calcite precipitation and their environmental impacts. The most frequently exploited pathway in materials engineering, ureolysis, was employed to demonstrate the technical feasibility of WCF recycling using Sporosarcina pasteurii. Despite promising results of this demonstration, an alternative approach must be sought to reduce the negative environmental impact associated with the use of ureolytic bacteria as it exceeds potential benefits. Such an approach could be based on the use of by-products from other industries to replace laboratory-grade chemicals, or on utilization of different metabolic pathways, such as carbonic anhydrase or methane oxidation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40401 - Agricultural biotechnology and food 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 periodika

REVIEWS IN ENVIRONMENTAL SCIENCE AND BIO-TECHNOLOGY

ISSN

1569-1705

e-ISSN

1572-9826

Svazek periodika

22

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

23

Strana od-do

427-450

Kód UT WoS článku

000985365500002

EID výsledku v databázi Scopus

—