A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
BIOSLURRY-INDUCED WATER BARRIER AND PROCESS OF FORMING THEREOF
Disclosed herein is a process of forming an inorganic water barrier layer on top of a porous substrate by means of microbially induced calcium carbonate or calcite precipitation (MICP), the process comprising the steps of: providing a porous substrate having a surface; depositing a urease-active slurry onto the surface of the porous substrate to form a bioslurry layer; and subjecting the bioslurry layer to one or more treatments with an aqueous solution comprising urea and a water barrier source material to convert the bioslurry layer into an inorganic water barrier layer. The process further comprises a step of covering the bioslurry layer with a layer of a porous material that has a surface, where the one or more treatments with an aqueous solution comprising urea and a water barrier source material are initially applied to the surface of the porous material. The porous material acts as a reservoir for the aqueous solution to sustain the biocementation of bioslurry into the desired inorganic water barrier layer.
BIOSLURRY-INDUCED WATER BARRIER AND PROCESS OF FORMING THEREOF
Disclosed herein is a process of forming an inorganic water barrier layer on top of a porous substrate by means of microbially induced calcium carbonate or calcite precipitation (MICP), the process comprising the steps of: providing a porous substrate having a surface; depositing a urease-active slurry onto the surface of the porous substrate to form a bioslurry layer; and subjecting the bioslurry layer to one or more treatments with an aqueous solution comprising urea and a water barrier source material to convert the bioslurry layer into an inorganic water barrier layer. The process further comprises a step of covering the bioslurry layer with a layer of a porous material that has a surface, where the one or more treatments with an aqueous solution comprising urea and a water barrier source material are initially applied to the surface of the porous material. The porous material acts as a reservoir for the aqueous solution to sustain the biocementation of bioslurry into the desired inorganic water barrier layer.
BIOSLURRY-INDUCED WATER BARRIER AND PROCESS OF FORMING THEREOF
CHENG LIANG (author) / YANG YANG (author) / CHU JIAN (author)
2020-10-08
Patent
Electronic Resource
English
IPC:
C12P
FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
,
Gärungsverfahren oder Verfahren unter Verwendung von Enzymen zur gezielten Synthese von chemischen Verbindungen oder Zusammensetzungen oder zur Trennung optischer Isomerer aus einer racemischen Mischung
/
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
BIOSLURRY-INDUCED WATER BARRIER AND PROCESS OF FORMING THEREOF
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