Fungal biomineralization potential for stabilization of waste powders

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F25%3A00386353" target="_blank" >RIV/68407700:21110/25:00386353 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.jece.2025.119335" target="_blank" >https://doi.org/10.1016/j.jece.2025.119335</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jece.2025.119335" target="_blank" >10.1016/j.jece.2025.119335</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Fungal biomineralization potential for stabilization of waste powders

Popis výsledku v původním jazyce

This study investigates the potential of the fungus Trichoderma reesei DSM 768 for biologically-induced calcite precipitation, focusing on consolidating fine-grained waste concrete fines. While microbially-induced calcite precipitation is extensively studied, fungal biomineralization remains largely unexplored, particularly regarding the influence of Ca2+ sources and pH adjustments on crystal morphology and mineral composition. Fungal biomineralization outcomes using calcium chloride and calcium lactate were compared with and without pH adjustment. Scanning electron microscopy, energy-dispersive spectroscopy, X-ray diffraction, and thermogravimetric analysis revealed distinct CaCO3 morphologies and phases, notably calcite and vaterite. Samples treated with T. reesei predominantly formed densely packed calcite crystals, with variations influenced by Ca2+ source and pH. Bacterial positive controls employing Sutcliffiella cohnii DSM 6307 produced distinct rounded vaterite crystals. Fungal biomineralization led to finer, more homogeneous crystal distributions, highlighting its potential for sustainable stabilization of waste materials.

Název v anglickém jazyce

Fungal biomineralization potential for stabilization of waste powders

Popis výsledku anglicky

This study investigates the potential of the fungus Trichoderma reesei DSM 768 for biologically-induced calcite precipitation, focusing on consolidating fine-grained waste concrete fines. While microbially-induced calcite precipitation is extensively studied, fungal biomineralization remains largely unexplored, particularly regarding the influence of Ca2+ sources and pH adjustments on crystal morphology and mineral composition. Fungal biomineralization outcomes using calcium chloride and calcium lactate were compared with and without pH adjustment. Scanning electron microscopy, energy-dispersive spectroscopy, X-ray diffraction, and thermogravimetric analysis revealed distinct CaCO3 morphologies and phases, notably calcite and vaterite. Samples treated with T. reesei predominantly formed densely packed calcite crystals, with variations influenced by Ca2+ source and pH. Bacterial positive controls employing Sutcliffiella cohnii DSM 6307 produced distinct rounded vaterite crystals. Fungal biomineralization led to finer, more homogeneous crystal distributions, highlighting its potential for sustainable stabilization of waste materials.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GA25-16403S" target="_blank" >GA25-16403S: Využití fakultativně anaerobních bakterií k recyklaci nejjemnějších frakcí drceného betonu</a><br>

Návaznosti

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

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Journal of Environmental CHemical Engineering

ISSN

2213-2929

e-ISSN

2213-3437

Svazek periodika

13

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

AT - Rakouská republika

Počet stran výsledku

18

Strana od-do

—

Kód UT WoS článku

001586962400013

EID výsledku v databázi Scopus

2-s2.0-105020965473