PRODUCTION OF GRANULAR ZEOLITE AND NITROGEN-CONTAINING SOIL CONDITIONER FROM INCINERATION ASH OF SEWAGE SLUDGE

摘要

PROBLEM TO BE SOLVED: To obtain granular zeolite used for treating water, etc., by treating zeolite synthesized from ash generated by incinerating sewage sludge by a specified method. SOLUTION: Water is added, e.g. by 25-35% to zeolite synthesized from ash incineration ash of sewage sludge, they are kneaded and molded to a certain diameter, e.g. 3-5mmϕ by extrusion with an extrusion granulator and the resultant granules are dried and fired to produce the objective granular zeolite.