Waste treatment system and method using energy recirculation techniques

A reactor for treating one or more waste materials, comprising:

• a cylindrical body having a first end and an opposite second end, the first end configured to receive the waste materials for waste treatment, the second end configured to deliver treated waste materials from the cylindrical body, the cylindrical body having a predetermined length and diameter ratio to be operated as a heating member in the form of a heat pipe during the waste treatment;
• a condensate insertion member having a first upper end, and a second upper end projecting directly and laterally opposite the first upper end, both said first and second upper ends connected to an inner wall of the cylindrical body, and a first lower end, and a second lower end projecting directly and laterally opposite the first lower end, both said first and second lower ends extending toward but not crossing a central axis, the first upper end extending inwardly and downward towards the first lower end from the first end of the cylindrical body to the second end of the cylindrical body, and the second upper end extending inwardly and downward towards the second lower end from the first end of the cylindrical body to the second end of the cylindrical body, wherein the condensate insertion member is configured to generate condensate in the reactor and insert the condensate into the waste materials to heat a predetermined portion of the waste materials, and
• wherein the predetermined length and diameter ratio is defined by a longitudinal length of the cylindrical body and an outer diameter of the cylindrical body, and has a predetermined value defined by a lower boundary value and an upper boundary value.