Application
Autosep Sand Trap DF BW is an integrated device used for comprehensive mechanical sewage and industrial wastewater treatment. Ergonomic structure and multifunctional character make the device a perfect solution for limited room for assembly and construction of wastewater preliminary treatment cycle.

Functioning
The wastewater flows to the filtration part through the loosening chamber. Screenings held on sieve are removed with adjustable rotary brushes, which are automatically cleaned by the inertial sweeper. The screenings are collected through the discharge mechanism, optionally connected to the Screenings Press DF PU. Wastewater, after solid parts removal, are transferred gravitationally to the centrifugal sand trap assembled under the sieve, where it is first aerated in order to support light and fat components floatation. Fat trap is assembled in the upper part, out of which the flotate is transported outside the sand trap. In the sand trap chamber sand and mineral elements sedimentation is carried out. The sand collected on the bottom is transported with the air-water pump to the sand separator, where the sand is cleaned with water and compressed air. Cleaned sand is removed from the device with the diagonal worm conveyor.

Equipment
- 1,0-10,0mm perforation sieve.
- Perforation automatic cleaning system.
- Screenings bagging system [option].
- Integrated sand separator equipped with worm conveyor with reverse mode.
- Fine-bubble wastewater aeration system [option].
- Aeration fan [option].
- Automatic flotate and fat collection system [option].
- Fat pump [option].
- Screenings press [option].
- Air-water pump.
- Power supply-control panel.
- Ex version [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
- Minimum room necessary for variety of device processes and capacities.
- Modular device structure.
- All mechanical wastewater treatment processes in one device.
- Solid contamination removal process hermetisation.
- Sand removal: 90-95% for grains > 0,2mm.