Rola bakterii ureolitycznych w procesach biocementacji gruntów – aktualny stan badań

• Autorzy: Misiołek K.

Warianty tytułu

EN

Role of urease active bacteria in the processes of soil biocementation

• Języki publikacji: PL

Abstrakty

PL

Celem artykułu jest przedstawienie mikrobiologicznego procesu otrzymywania osadu wapnia (MICP, z ang. Microbially Induced Calcite Precipitation). Podstawą technologii MICP jest aktywność komórek bakterii, które są w stanie zmagazynować produkt metaboliczny CO₃2-, który następnie reaguje z jonami wapnia w środowisku naturalnym, w wyniku czego uzyskiwana jest struktura minerału. Bakterie ureolityczne, prowadzące proces hydrolizy mocznika przy udziale enzymu ureazy, okazały się najefektywniejsze przy tworzeniu osadu węglanu wapnia, a tym samym najbardziej odpowiednie do celów biocementacji gruntów. Artykuł przedstawia przegląd metod hodowli bakterii oraz prac eksperymentalnych mających na celu osiągnięcie najlepszych parametrów badanego materiału.

EN

The aim of the paper is to present and describe the use of microbially induced calcite precipitation process (MICP). The basis of MICP process is bacterial metabolic activity which thereby promotes the precipitation of calcium carbonate in the form of calcite. Ureolytic bacteria that hydrolyze urea, proved to be the most effective to perform precipitation of calcium carbonate. Therefore their application seems to be beneficial in the processes biocementation of soils. The paper presents the methods of obtaining the urease active bacteria and describes laboratory methods in order to achieve the best strength parameters of tested soil.

Słowa kluczowe

PL

bakteria ureolityczna; biocementacja; ureaza; MICP

EN

ureolytic bacteria; biocementation; urease; MCIP

• Wydawca: Oficyna Wydawnicza Politechniki Białostockiej
• Czasopismo: Budownictwo i Inżynieria Środowiska
• Rocznik: 2018
• Tom: Vol. 9, no. 2
• Strony: 75--79
• Opis fizyczny: Bibliogr. 30 poz., rys., tab.

Twórcy

autor

Misiołek K.

• Wydział Instalacji Budowlanych, Hydrotechniki i Inżynierii Środowiska, Politechnika Warszawska, ul. Nowowiejska 20, 00-653 Warszawa

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).