Asdescribed above, the system is based on the collection of wet waste by means of vacuum tubes with the addition of a central collection and separation solids / liquids. This technology, already widely experienced in the marine field, is now extensive technical advantages, hygienic and economic civil applications. The waste is placed directly in the tub inserted on the working plane, acting on the foot switch or button dedicated to the collection point. The waste is immediately sucked, together with water to wash the hopper. Refusal and liquid, are collected in the suction machine, which provides the solid / liquid separation, by sending the liquid into the sewer system and the solid parts in normal container type echo containers. This pre-treatment of rejection allows a reduction in volume and weight of the same with immediate and substantial reduction of the costs of collection, transportation and destruction of waste.

The average dry solids (DS) content of the shredded and collected waste is around 5-7%. Before it is suitable for disposal at the incinerator, it must reach a final DS of about 20%. To achieve this condition, the food waste (FW) is fed into a screw type dewatering unit, which squeezes the liquid out of the FW to separate the excess water from the food waste.

The FW is collected in the silo and the juices are drained from the press to the FW reject water tank. These juices are called the food waste reject (FWR) water. The press is controlled by the PLC and operates automatically, guaranteeing a minimum of 20% DS at the outlet.

The FW press capacity is normally about 1000 kg/hr, depending on the application. The unit is made entirely of acid proof stainless steel.