Curing sintering-free granulation method for sludge
2014
The invention provides a curing sintering-free granulation method for sludge. The method comprises the following steps: filtering sludge with a vibrating filter sieve so as to separate solid waste like plants and pebble in the sludge; placing the sludge having undergone filtration into a curing apparatus, sprinkling a curing agent, adding fine aggregate and carrying out mixing; and subjecting the cured sludge to granulation with a granulator so as to obtain pebble or cobblestone-shaped aggregate. The invention further provides application of the pebble or cobblestone-shaped aggregate prepared by using the method in preparation of plant type porous concrete or other water constructions. The method uses industrial waste as a curing agent for immobilization of the sludge and has the advantages of simple process, high curing efficiency and achievement of the good effect of treatment of waste with waste.
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