- Municipal wastewater (pre-treatment)
- Process water recycling
- Slaughterhouse wastes
The Girapac is an enclosed, compact, and stand-alone unit, mainly for full pre-treatment of wastewater entering municipal and industrial WWTPs. This type of rotating drum screen has three main functions: solid/liquid separation, compacting, and bagging of waste.
The effluent is fed to a distribution tank before passing over the upper part of the filter drum. The effluent flows through the filter screen, and any waste particles larger than the mesh are deposited on the drum and carried away towards the discharge zone. The particles removed come into contact with the scraper and drop into the screw compactor.
The water drains through the lower part of the drum, thus ensuring self-cleaning of the filter screen by eliminating the last remaining im-purities. An internal washing ramp is used to finish drum cleaning. The waste, which is conveyed by a shaftless screw towards a compacting zone, is retained in the strainer thanks to a check valve. The pressure exerted by the valve, which is fitted with springs, allows the compacting action to be controlled: The compacted waste, which is pushed through the valve by the screw, drops into a plastic bagging unit.
Filtrates generated in the compacting zone are brought to the drum filtrates tank.
The standard unit includes an integrated overflow with alarm and filtrate sample collector.
The Girapac is equipped with a screw compactor, comprising of: