BioPrePlant - Pre-Treatment System for Food Waste.
The BioPrePlant System is a unique system for pre-treatment of food waste. All BioPrePlant-Systems are delivered with a customized automation and control system. We offer our clients a process plant that to a great extent is operated automatically, with a minimum of operator interventions needed.
BioPrePlant-Systems starts with a system for receiving food waste. In this Multi Waste System food waste from households, supermarkets, restaurants and other waste generating activities is mixed without any sorting or de-packaging. The food waste is automatically transported further into the system for treatment and separation. There are many solutions to receiving and in-feeding systems; each system is therefore designed according to each customer’s specific needs.
The end product from a BioPrePlant-System is a biosubstrate that is suitable for anaerobic digestion. In the development of the BioSep no resources were spared, to ensure optimal separation, which means that we can guarantee that the biosubstrate will be of the highest quality. The particle sizes of the digestible material, and the amount and sizes of the impurities remaining within the biosubstrate, is well within the technical and environmental requirements for utilizing the biosubstrate in biogas production and then the digestate as a bio fertilizer.
In Feeding,BioSep is continuously fed with food waste with a spiral conveyor, depending on the moisture content in the waste an adjustable amount of process liquid is added to the unit. Separation inside the BioSep is achieved through a rotor that pulls the material pass a sieve and simultaneously presses the soft digestible fractions through the sieve. This fraction is collected under the BioSep as a biosubstrate, which requires further processing.
Reject cleaning,to achieve optimal utilization of the resources in the food waste the BioSep has a reject cleaning stage, during which the reject is tossed around in the machine while clean water or process liquid is added. This secures that a minimum amount of digestible material clings to the plastics and packaging material.
Reject drying,To further ensure minimal losses of digestible material and to prevent large pockets of liquid on the reject, the reject is dried before being discharged from the unit.
Reject discharge,when the reject is cleaned and dried, the BioSep automatically discharge the reject into a spiral conveyor for onwards transportation to a container.