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过程工程学报 2008
Preparation and Characterization of Keramzite from Municipal Sewage Sludge
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Abstract:
Sewage sludge was used as principal material to sinter lightweight keramzite aggregates. The optimized preparation conditions were selected. The impacts of main factors (dry time, preheating temperature, preheating time, sintering temperature, and sintering time) on characteristics of lightweight aggregate (specific surface area, bulk density, and granule density) were studied. The results show that the optimized mass ratio of sewage sludge to additives was that sewage sludge:fly ash:clay=2:3:1. The optimiz...
