Process for producing a dried fertilizer from sewage sludge

Details Process for producing a dried fertilizer from sewage sludge Process for producing a dried fertilizer from sewage sludge

C - Chemistry, Metallurgy

05

F

71/18, 71/4

C05F 7/00 (2006.01) C05G 3/00 (2006.01)

Patent

CA 1335940

Sewage sludge is subjected to a treatment with an acid in order to form stable ammonium compounds before thermal drying of the sludge which would otherwise volatilize ammonia and diminish the nitrogen content of the sludge.

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