UNIT OF THIN-LAYER SETTLING WITH BUILT-IN RECOVERY SYSTEM Russian patent published in 2014 - IPC B01D21/02 

FIELD: process engineering.

SUBSTANCE: invention relates to waste disposal plants, particularly, to thin-layer settling units and can be used for sewage treatment. Proposed unit comprises thin-layer modules. A module is composed of strips. Guide bushes are secured to the strip to set strip inclination angle and strip spacing. Polypropylene tubes are passed through said bushes to strips whereon strips with bushes are strung. Inner carcass tubes are used for recovery system. Mid row of three rows is looped. Loop central tube is perforated, holes being arranged between strips, at the center. Inclination angle of the strips makes 40-60 degrees while spacing between strips equals 20-50 mm. Polypropylene 15-50 mm-dia tubes are passed through said bushes to strips, while four 1-5 mm-dia holes are made in the loop central tube. Water is pumped from settler, air or mix of air and water are fed from compressor.

EFFECT: higher efficiency.

4 cl, 2 dwg