AUTOMATIC SYSTEM FOR PRELIMINARY TREATMENT OF FISH-PROCESSING ENTERPRISE WASTEWATERS Russian patent published in 2014 - IPC C02F9/04 C02F103/22 

FIELD: food industry.

SUBSTANCE: invention includes a settlement chamber, a vessel for acceptance of floating fat mass, an auger enclosed within a perforated housing, and two vessels connected with the latter: one for collection of dehydrated wastes and the other -for collection of liquid. The control unit is connected to the sensors monitoring the level of wastewater and sediment in the settlement chamber and the level of liquid in the liquid collection vessel. In the lower part of the settlement chamber a brush with a drive is installed. The chamber has an opening wall connected to the drive and is equipped with horizontally oriented perforated partitions. The system is additionally equipped with a waste collection vessel, a chamber for coagulant solution preparation, a chamber for mixing water being treated with the coagulant solution and, having an automated doser and a flotator. The coagulant solution preparation chamber, the mixing chamber, the floating fat mass receptacle vessel, the flotator, the waste collection vessel and the dehydrated waste collection vessel are equipped with liquid level sensors. The settlement chamber is equipped with sediment level sensors with pressure sensors installed in the auger and in the settlement chamber. The system pipelines are equipped with water flow rate and pH sensors. All the sensors are connected to the control unit.

EFFECT: high quality of preliminary treatment of wastewaters and automation.

1 dwg