Process for the treatment of pork manure and product thus...

Details Process for the treatment of pork manure and product thus... Process for the treatment of pork manure and product thus...

C - Chemistry, Metallurgy

05

G

C05G 1/00 (2006.01) C05F 3/00 (2006.01) C05G 3/00 (2006.01) C05G 5/00 (2006.01)

Patent

CA 2144234

This invention relates to a process for the treatment of porcine excrement, to transform it into fertilizer. According to the invention, a solution of phosphorus pentoxide and potassium oxide is added to a liquid solution of porcine excrement in suitable proportions to obtain in the final product the desired ratio between nitrogen, phosphorus and potassium, and as a function of the nature of the soil and of the type of application, after which the obtained solution is mixed with a product adapted to retain water, having the desired shape of the final product, so as to obtain a shaped and conditioned fertilizer, which is subjected to a drying treatment.

La présente invention a pour objet un procédé de traitement du lisier de porc pour le transformer en engrais. Selon l'invention on ajoute à la solution liquide de lisier une solution de pentoxyde de phosphore et d'oxyde de potassium en proportions appropriées pour obtenir dans le produit final le rapport souhaité entre l'azote, le phosphore et le potassium, et en fonction de la nature du sol et du type d'application, après quoi on mélange la solution obtenue avec un produit susceptible de retenir de l'eau, ayant la forme désirée du produit final, de façon à obtenir un engrais conformé et conditionné, que l'on soumet à un traitement de dessiccation.

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