Application
The Centrifugal Sand Trap with Sand Separator DF PSZ is the device used for separation of sand and solid bodies found in the wastewater with flotate filtration. The separator integrated with the sand trap enables sand washing flushing and drainage which decreases necessary operation space.

Functioning
The wastewater enter the cylindrical internal ring, the form of which makes the fluid circulate. The centrifugal force and weight makes the sand and solid bodies of high specific weight drop down to the conical collection chamber bottom, to the collection hopper. Thanks to the fine-bubble aeration fat and other flotate is kept within sand trap internal ring, from where they are removed periodically with flotate filtration system. Filtrated wastewater is removed outside with outlet stub pipe. The sand-water pulp from the collection chamber is transferred to the sand separator with the air pump. In the separator, the pulp flows into wash and sedimentation chamber. The organic contamination is washed away from the mineral matter with air provided to the chamber. Cleaned sand drops down to the bottom and the fluid surplus with organic suspension flows through the overflow back to the external ring, form where it is transferred outside with worm conveyor.

Equipment
- Cylindrical body connected with conical sedimentation segment.
- Internal separation ring.
- Wastewater aeration system [option].
- Automatic flotate and fat filtration system [option].
- Sand transportation air pump.
- Sand separator integrated with the sand trap.
- Diagonal draining worm conveyor set under angle of 35-45o equipped with reverse motion mode.
- Power supply-control panel.
- Ex-version available [option].
- Winter package enabling outdoor installation of the device, system operated through signals from two autonomic thermostats (as an option).
- Material: stainless steel. Other materials may be used on demand.

Product features
- Sand separation and cleaning processes in one device.
- Sand removal: 90-98% for grains > 2,0mm.
- Organic matter reduction from sand: max 99%.
- Fluid ring separation system.
- Sand drainage.
- Flotate and fat filtration.
- Less room required/small assembly space.