C - Chemistry – Metallurgy – 05 – F
Patent
C - Chemistry, Metallurgy
05
F
C05F 3/00 (2006.01) C02F 9/00 (2006.01) C05D 9/00 (2006.01) C02F 1/02 (2006.01) C02F 1/20 (2006.01) C02F 1/28 (2006.01) C02F 1/44 (2006.01) C02F 1/52 (2006.01) C02F 1/56 (2006.01) C02F 1/66 (2006.01) C02F 11/12 (2006.01)
Patent
CA 2343832
A method of treating faecal waste material comprises flocculating the waste material, processing, e.g. filtering, the flocculated waste material to extract liquid from solid material, drying the solid material, processing the liquid to extract potassium and ammonia from the liquid, all within 24 hours, and preferably on average within 12 hours, of production of the waste material by animals. Since urea in urine and faeces takes a few hours to break down, the prompt treatment of the waste material is effected while ammonia remains trapped in solution, and consequently a larger portion of the total amount of ammonia in the waste material can be extracted from the liquid filtrate.
Bi Ziaotao
Helle Steve
Timmenga Hubert
Van Slyke Victor
Watkinson Paul
Atd Waste Systems Inc.
Long And Cameron
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