The Effects of Additives on Tensile Strength and Specific Gravity of Compressed Tablets of Incinerated Sewage Sludge

Abstract

Experimental measurements were made of the tensile strength and the specific gravity of the compressed tablets which were produced with two different types of incinerated sewage sludge. The chemical elements of the sludge were also analyzed with a radiometric analyzer for developing a useful application of them. The effects of additives on the physical properties of the tablets were also confirmed with fly ash, calcium carbonate, and zeolite by using a compression device. The results show that zeolite was superior as a most effective and promising additive for making useful tablets from the incinerated sludge.