C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 11/00 (2006.01)
Patent
CA 2695312
Sewage sludge is dewatered to a cake-like state. The viscosity of the sludge is lowered by admixing a quantity of urea, urea-ammonium-nitrate, or other nitrogen- contaning material, in with the dewatered sludge. The treatment also removes pathogens, and renders the product suitable for use as a fertilizer.
Singh Ajay
Ward Owen P.
Asquith Anthony
Lystek International Inc.
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