METHOD AND DEVICE FOR PURIFICATION OF AMMONIUM-CONTAINING SEWAGE WATERS Russian patent published in 2015 - IPC C02F3/30 C02F101/16 

FIELD: chemistry.

SUBSTANCE: claimed is method and deammonifying installation for purification of ammonium-containing sewage waters. Deammonifying installation for purification of ammonium-containing sewage waters contains aeration tank and hydrocyclone for separation of sludge from aeration tank into relatively heavy fraction, which includes bacteria, performing anaerobic ammonium oxidation, and relatively light fraction. Hydrocyclone contain input, connected with aeration tank, for return of separated relatively heavy fraction into aeration tank and upper output, connected with aeration tank, for discharge of separated relatively light fraction from hydrocyclone. Hydrocyclone contains cylindrical segment and conic segment. Surface of internal walls of conic segment is rough on certain parts. Rough surface of internal walls of conic segment has higher degree of roughness than surface of internal walls of cylindrical segment. Method of purification of ammonium-containing sewage waters is realised in deammonifying installation.

EFFECT: simplification of ammonium and nitrite conversion into elementary nitrogen.

33 cl, 3 dwg