These RECEIVING UNITS WITH SAND AND GREASE TRAPS TYPE SRSC+ for over ground level installation with a maximum capacity of 600 m³/h are made for the separation of suspended solids, sand and grease in the waste water flows. These residues will be evacuated separately by the integrated SNOEK FINESCREEN OR BARSCREEN, the SNOEK SANDCLASSIFIER and a SNOEK GREASE TRAP. Depending on the type of waste and process water, the application of the type of automatic screen will be defined, which will be a finescreen or a bar screen. The aeration in the zone of the grease trap and sand classifier will be treated with self-priming micro aerators with an extremely high transfer rate. In option the receiving units can be equipped with a screw compactor and inspection platform and can be fabricated completely closed for outdoor installation and to avoid odour nuisance.