Microbial Calcium Carbonate Formation Mechanisms and Application Areas

43944

With rising world population the urbanization and the demand for house and office construction are considerably increased. Accordingly, weak construction sites should be stabilized for the required engineering properties. Among many stabilization techniquies, nowadays, biological stabilization is the efficent method. Therefore, civil and environmental studies on biochemical calcium carbonate formation are considerably increased. Microbial calcium carbonate formation is a biochemical mechanism employed by alcoholophilic microorganisms. Many applications can be utilized via calcium carbonate formation method such as remediation of crack formation, the stabilization of problematic areas, reducing water pressures in construction sites, restoration of historical buildings. Moreover, in environmental engineering the calcium carbonate formation method is used in removal of heavy metals from industrial wastes to reduce harm to the nature and human health.In this review, the formation of calcium carbonate mechanisms will be explained and its use in civil and environmental engineering, like biocementation and formation of heavy metals in industrial wastes will be discussed. Published studies in this regard will be summarized and efficient procaryote organisms will be mentioned.

70

Biocementation , Bioremediation , Biomineralization , Microbially heavy metal removal

International journal of advances in engineering and pure sciences

80

International journal of advances in engineering and pure sciences