• How Parc works
• Waste volume
• Recyclables
• Batch Control
• Animal Byproducts Compliant
• Inside a Tower
• Testing Regime
• Environmental Impact
• Future Sites

How Parc Works

Parc uses the natural composting ability of biological waste to sterilise and stabilise the waste mass and to turn the biogennic fraction into a material like compost. We add no heat, chemical or other exotic technology to the waste.

Shredding and loading
The process starts with the loading of MSW into a shredder. Waste is then loaded by conveyor into the top of three composting compartments. Each composting compartment contains a large 3 limbed aeration and mixing assembly and a set of bomb doors down which the waste drops as it moves from one level to the next.

Composting
Waste spends two days sealed in each level, its temperature being controlled between pre-set thresholds by addition of air, agitation through mixing and the rate of extraction of compartment atmosphere though the bio-filtration system.

Unloading
After 6 days the bio-waste fractions have been substantially stabilised and composted. The mixed stabilised waste is unloaded.

Segregation
The sterile and stabilised waste then goes through a multistage segregation process, incorporating trommels, air-knives, ferrous and eddy current segregation.

Batch control
Batch control and visibility is an important part of this system – we have comprehensive temperature records for every batch and traceability to a batch numbering system that is preserved through out the process.

Waste treatment and Parc
Parc can be classed as a form of mechanical biological treatment (MBT). The term MBT covers a wide range of treatment regimes, some of which appear very crude or slow when compared to Parc.