PTG has created and patented a unique process that utilizes the digester gas (biogas) that is created at a wastewater treatment facility which is used as the fuel to drive a turbine that generates electricity. The exhaust energy from the turbine (over 900°F) is then used to drive a set of heat exchangers that increase the temperature of the wastewater to a level that disinfects the wastewater stream. Once disinfected, the wastewater can be re-used for agricultural purposes, lessening the demand on potable water supplies.
Pasteurization System Facts
The PTG process is the most energy efficient CHP (Combined Heat & Power) system in existence. The system is over 90% energy efficient and uses exhaust heat (free fuel source) to drive the system.
- System utilizes onsite generated renewable biogas to generate electricity and exhaust heat.
- Exhaust heat is the fuel (free) that drives the disinfection of the wastewater.
- Proprietary heat exchanger system pre-heats incoming wastewater stream while simultaneously lowering the exiting waters temperature so it is safe to discharge.
- The patented process means that the wastewater must only rise by three (3) degrees to achieve disinfection, not 110 degrees, lowering the energy requirement by over 35 times.
