Calcium carbonate precipitation induced by ureolytic bacteria Bacillus licheniformis

Isolation, differentiation and biodiversity of ureolytic bacteria of Qatari soil and their potential in microbially induced calcite precipitation (MICP) for soil stabilization

“…9,17,27,28 Similarly, B. licheniformis is also involved to precipitate calcium carbonate by ureolysis. 16 All the species that tested positive for ureolytic activity could grow on urea as sole carbon and nitrogen source consistently. The growth remained stable throughout the experimental analysis.…”

“…Some specic species are B. sphaericus, 7 B. lentus, 17 B. pasteurii 30 and B. licheniformis. 16 Bacteria involved in biomineralization are important in stabilizing soil, especially in regions and cities with windy and desert-like conditions such as in the Gulf region. Among large number of applications of ureolytic bacteria, the stabilization of soils, especially calcareous ones, is highly recommended.…”

Phosphorus removal by marine bacterium enhanced with iron in the presence of silicon

“…Recent studies also showed that the extracellular polymeric substances (EPS) of bacterial cells also played an important role in P reservation because there were a lot of charged functional groups and enzymes in it that could adsorb P or decompose polyphosphate, respectively . At the same time, the functional groups could be nucleation sites for metal oxides/hydroxides and thus promote flocs or precipitate growth . It was also well acknowledged that Fe (III) salt could effectively sequester P by flocculation in wastewater.…”

“…23 At the same time, the functional groups could be nucleation sites for metal oxides/hydroxides and thus promote flocs or precipitate growth. 24 It was also well acknowledged that Fe (III) salt could effectively sequester P by flocculation in wastewater. Therefore, higher RE in the BPR-Fe system than in BPR system was speculated to be resulted from the excellent P adsorption ability of Fe (III) flocculants accompanied with biological P removal.…”

Bio-Restoration of Mural Paintings Using Viable Cells of <i>Pseudomonas stutzeri</i> and Characterization of These Murals

“…The use of bio-restoration process, thus, the only way to solve these two problems and to let the noble mural paintings easy to be characterized. Microorganisms were deemed responsible for the changing in monuments and mural paintings [3][4][5], but on the other hand they have decisive effects in conservation and restoration process [6][7][8][9][10]. Bacteria has cleaning advantages over other treatments methodology such as laser, especially when the deteriorated substances need to be removed are complex [11] never less, Bacteria were able to acclimate themselves to different environmental parameter (pH, temperature, and nutrients).…”