The present disclosure provides an apparatus for thermal treatment of a pre-defined amount of organic waste. The apparatus includes a plurality of chambers to receive the pre-defined amount of organic waste. Further, the apparatus includes a double wall to encapsulate each of the plurality of chambers. Furthermore, the apparatus includes an auger accommodated within the cylindrical hollow body of each of the plurality of chambers. Moreover, each of the plurality of chambers has a cylindrical hollow body. The cylindrical body has a first diameter of a first section and a second diameter of a second section. In addition, each of the plurality of chambers is connected in succession for a continuous movement of the pre-defined amount of organic waste along a longitudinal axis. Further, the plurality of chambers includes a feed material inlet and a processed material outlet attached at a second end of the plurality of chambers.