Treatment of Municipal Waste
Pre-treatment - shredding and screening
Pre-treatment is dependent on input material. The first stage is shredding. Star screen technolgy can be used for cleaning the input material. For household waste, a complete waste splitting process is to be implemented upstream for separation of organic substances.
Pulper process
In the pulper, a separation and a liquidising process of the input material takes place. Sinking inert substances are separated in an automated process. Then a MULTISTAR star screen removes oversized particles to prepare the substrate for digestion. A press unit, positioned downstream, separates additional digestion substrate from oversized particles and is either used or disposed of depending on quality and contrary content.
Pressing process
The input material is first pre-conditioned in the mixing vessel
of the MASHSEPARATOR. Four screw mixers provide intensive mixing
and fraying. Separation takes place in the subsequent pressing stage in the separator, into a liquid phase for anaerobic digestion and into solids for composting.
Treatment for dry anaerobic digestion
For the dry anaerobic digestion process, the CRAMBO (or TERMINATOR) has provento be ideal for the shredding stages, as has MULTISTAR star screen technology for the separation of the fraction for digestion.
