APPLICABILITY OF SEWAGE SLUDGE ASH AS SOIL-STABILIZER COMPONENT

Abstract

The sludge discharged from sewage treatment plants is disposed of as follows: polymer flocculant is added to the sludge, which is then dehydrated to reduce volume, and then incinerated and buried in controlled landfill sites in the form of incineration ash.
This study examined whether the sewage sludge ash could be used as a soil-stabilizer component, that is, whether the backfill soil obtained as mentioned above meets the applicable strength and environmental quality standards for soil. As a result, the potential of the sewage sludge ash was confirmed.