| abstract |
The present invention provides kits, compositions, tools and methods comprising a cyclic industrial process for forming a biocement. In particular, the invention relates to materials and methods for decomposing calcium carbonate to calcium oxide and carbon dioxide at an elevated temperature, reacting calcium oxide with ammonium chloride to form calcium chloride, water and gaseous ammonia; and reacting gaseous ammonia and carbon dioxide under high pressure to form urea and water, which are then used to form biocement. This cyclic process can be achieved by combining industrial processes with the resulting product as a biocenter. The process may involve the retention of calcium carbonate currently used in the manufacture of Portland cement. |