Compact Pretreatment Unit System GNYCLS Compact Pretreatment system consists of a screw screen, a sedimentation tank, a sand extracting screw and an optional grease scraper. The first phase of Compact Pretreatment Plant in the waste water treatment process is mechanical pre-treatment including: * Solids-liquid separation, compaction and dewatering of solids larger in size than the screen slots; * Sedimentation, lifting and de-watering of sand; * Grease flotation and removal. * Subsequently the waste water is ready for further treatment (chemical,physical or biological), while solids are discharged for disposal. Technical Parameters Packing&Delivery