The BioCon dryer
BioCon is a dual-belt low temperature dryer designed to be one of the safest dryers on the market while maintaining easy and efficient operations.

BioCon uses innovative depositors within the dryer to deposit thin strings of dewatered sludge on the first drying belt. The depositor system ensures a large evaporation surface area while the circulated drying air evaporates the water from the sludge.

BioCon operates with a drying air temperature range from 180 °C on the first belt to 80-100 °C on the end belt. The sludge residence time in the dryer is more than 60 minutes and the dried sludge meets the US EPA requirements for Class A pathogen reduction.

BioCon Energy Recovery System (BERS)
The BioCon Energy Recovery System (BERS) reduces the total output of the plant to 5-10% of the original sludge cake quantity.

BioCon Energy Exchange System (BEES)
Sludge digestion combined with BioCon Sludge Drying and the BioCon Energy Exchange System (BEES) provides an essential reduction in the need for external energy supply.

The BIOCON Dryer treats municipal dewatered sludge at low temperature and in complete safety for the operator. The BIOCON Dryer consists of two moving belts that allow the sludge to reach levels of dryness of between 65% and 90% using hot air circulation.

The dried sludge can be stored and recycled again in agriculture, without further treatment. Sludge can also be reused in a BIOCON Energy Recovery System (ERS), installed downstream from the drying unit. With this system, the energy recovered is utilized for drying the sludge, without an external energy supply.

• For dewatered sludge (10-30% Dry Solids)
• Drying at a temperature below 180°C
• Retention time of more than one hour for desinfection
• Delivery of granules or pellets

• For dried sludge
• No external energy supply
• Automated operation
• Production of inert and recyclable ash
• Flue gas emission according to EU-regulations

• Reduction of initial sludge quantity to less than 5% (when combined with an Energy Recovery System)
• No odor nuisances
• Sludge disinfection (US EPA class A)
• No equipment abrasion
• No dust (no sludge movement)
• Quiet process
• Energy recovery
• Low operating costs
• Risk control