Waste handling solutions for the fermentation industry - Waste and Recycling - Material Recycling

Processing solutions for wet fermentation
By using the right shredding and separation technologies, heavily contaminated market waste and expired food can be recycled alongside bio-waste and food residues. The Komptech pulper process turns waste in three steps - Shredding - Pulping - Wet screening - into a pumpable liquid for wet fermentation.

Plant Design

The process chain comprises shredders, pulpers, screens, presses and further separation technologies as needed. The result is a pumpable, low-contrary substrate for the fermenter. The package includes all machinery including installation and commissioning.

Shredding

Packaged, non-homogenous or lumpy waste necessitates pre-shredding. Slow-running shredders which break down the material thoroughly are used. Shredding with the dual-shaft shredder Crambo provides the optimum size for the largest fraction and reliable opening of packaging and containers.

Pulping

The key component of the treatment stage is the transfer of the organics into the liquid phase. The pulper used performs several tasks. In batch operation, the organics are shredded further and homogenised in the process water. Packaging is emptied and cleansed by the high flow speed. At the same time, heavy material is separated off through a sluice.

Separation

Raw substrate exits the pulper onto a Multistar star screen, connected downstream. The liquid with the suspended organic material flows through the star screen and is collected in a tray from where it is pumped, via sand separation, into the collection tank. Oversized particles are discharged via the star screens and water is removed in a press.

Fermentation

After sand separation and hygenisation the fermentation substrate exhibits ideal properties for simple fermentation. Adding of additional liquid waste is possible. The ideal reactor system is based upon the on-site conditions and kind and quality of the processed waste.