Renewable energy of organic wastes by carbonization

Abstract

A carbonization can be suggested as one of the recycle methods for organic wastes such as food wastes or sewage sludge. The authors have developed the efficient carbonizing facilities composed of direct drying and indirect pyrolysis processes. Carbonized residue can be utilized as adsorbents or fuel because of its physical and thermal properties. In this study, mass and heat balances for the carbonization of garbage or sewage sludge were established and thermal properties of carbonized residues were estimated. To upgrade their fuel characteristics, several methods such as making pellets and/or adding cokes or other materials were also applied.