Methods for treating wastewater sludge

Details Methods for treating wastewater sludge Methods for treating wastewater sludge

C - Chemistry, Metallurgy

02

F

C02F 11/12 (2006.01) C02F 11/14 (2006.01) C05D 3/02 (2006.01) C05F 7/00 (2006.01) C02F 1/66 (2006.01)

Patent

CA 2393948

This invention relates to methods for treating wastewater sludge cake with acid and calcium carbonate under acidic, low heat conditions to produce a stable, soil-like or granular, finished product containing calcium carbonate, useful as a nitrogen fertilizer, synthetic soil component or soil conditioner for pH control.

L'invention concerne des procédés de traitement du gâteau de boues d'épuration à l'acide et au carbonate de calcium dans des conditions acides à basse température pour fabriquer un produit fini granuleux ou du type sol contenant du carbonate de calcium, utile comme engrais azoté, composant de sol synthétique ou conditionneur de sol pour la régulation du pH.

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