Bio-Mediate Cementation Technique
The utilization of aerobic and anaerobic bacterial processes provides a unique opportunity to harness natural biological processes for engineering purposes. In this study bacterial (microbial) mineral precipitation of calcium carbonate (calcite) was performed. The creation of calcium carbonate (calcite) cement occurs as a consequence of bacterial metabolic activity which raises the pH of the proximal environment. The local pH rise may be achieved by the production of ammonia and carbon dioxide resulting from the enzymatic hydrolysis of urea. Bacillus pasteurii, a common soil bacteria, uses urea as an energy source and produces ammonia which increases pH, in turn causing Ca2+ and CO32- to precipitate as CaCO3. Microbiologically-induced calcite precipitation occurs according to the reactions:
1More
Tidal House: Terry.Terry Architecture's coastal home of the future - 0 views
1More
The Palais Omnisports de Paris-Bercy: Rebirth of an icon - 0 views
1More
India Art n Design: Journey through The Busride - 0 views
1More
India Art n Design: Form-al Fortitude - 1 views
Enjoying My Beautiful Home - 2 views
1More
Library of the 2030’s - 0 views
Armstrong Ceiling for my Kitchen - 3 views
‹ Previous
21 - 40 of 50
Next ›
Showing 20▼ items per page