C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
6/226
C04B 18/24 (2006.01) C02F 11/00 (2006.01) C02F 11/14 (2006.01) C04B 18/30 (2006.01) C04B 28/24 (2006.01) C04B 28/26 (2006.01)
Patent
CA 1327431
In-Situ Formation of Soluble Silicates from Biogenetic Silica in Chemical Fixation/Solidification Treatment of Wastes Abstract Disclosed is the solidification and chemical fixation of liquid wastes using biogenetic primarily amorphous silica to the waste in the presence of a strong alkali in the waste which converts the biogenetic silica into a soluble silicate, and in the presence of a polyvalent metal ion in the waste which reacts with the soluble silicate to provide a cementitious product of the waste. In the event there is insufficient strong alkali present in the waste to convert the biogenetic amorphous silica to a soluble silicate, and insufficient polyvalent metal ion in the waste to harden and form a cementitious product, amounts of these components as necessary can be added along with the biogenetic silica to the waste. The resulting cementitious and chemically fixed waste can be left in place, for example to provide a land farm, or can be removed and broken up and used as a cover for land fills, various land applications, and farms, as well as other applications.
573336
Conner Jesse Roy
Rieber Roy Silent
Agrisilicas L.l.c.
Borden Ladner Gervais Llp
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