The system is designed for 24-hour ongoing operation similar to the CHP. The dryer achieves its incomparably high efficiency with its special geometry, which produces the ideal physical conditions. The sewage sludge is mixed up by the quickly rotating scoop blades and kept in the chamber in a consistent cloud of material. A maximum material surface area is exposed to heat and air as a result. The extremely dry, 572ºF (300ºC) air, circulates every particle completely, immediately absorbs the moisture and leads to a turbo drying process.
Due to the hot air effect, complete sanitization of the sewage sludge takes place and the resulting product is classified as a Class A Biosolid. The working conditions thereby improve when handling the sewage sludge. Health risks are minimized and it is ensured that no harmful substances or pathogens can re-enter the human cycle.
The pelletizing guarantees a dust free and cost-effective handling. No silo sludge or special logistics are needed. Developed for sludge, the pelletizer works almost dust free and with very little noise. A slow moving press wheel leads to a less wear operation.
The whole process is visualized by a Siemens HMI and controlled by an active remote control (ARC) system. Adjustments are easily made by a self-explanatory operation of the controller.
Use of the pure exhaust gas leads to high efficiency and an above average profitability. In addition, the pellets can be bagged and used or sold as fertilizer.