Production and characterization of sintered ceramics from paper mill sludge and glass cullet.
Three different types of paper mill sludge were first incinerated and then attrition milled separately or mixed with glass cullet in varying proportions to obtain powders of different compositions. These powders were then dried, sieved, uniaxially pressed into samples and air sintered. Fired samples were characterized by density, water absorption, shrinkage on firing, strength, hardness and fracture toughness measurements; SEM and X-ray diffractions were also carried out to investigate microstructure and phase composition. Some sintered samples displayed fairly good physical and mechanical properties as a consequence of their low residual porosity and fine microstructure.
Università di Udine, Dipartimento di Scienze e Tecnologie Chimiche, Via del Cotonificio 108, 33100 Udine, Italy.
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Asquini
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Furlani
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Bruckner
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Maschio
D002516:Ceramics; D005898:Glass; D007220:Industrial Waste; D008855:Microscopy, Electron, Scanning; D012722:Sewage; D013783:Textile Industry; D014961:X-Ray Diffraction
D007220:Industrial Waste; D012722:Sewage