AERATOR WITH PULSATOR AND METHOD (VERSION) OF LIQUID AERATION Russian patent published in 2009 - IPC C02F3/18 

FIELD: sewage treatment facilities.

SUBSTANCE: invention may be used for biological treatment of household sewage drains of separately standing houses and cottages. Aerator comprises distributor 1b and facility for creation of air pressure pulsations arranged in the form of pulsator 7a, comprising body provided with inlet 8b and outlet 10 channels for air. In body cavity rotary shaft 13 is installed with impeller 12 and channels 14 for pulsed air supply into outlet channels 10. Body is connected by one or several gas flues 11 to one or several injection chambers 2b, arranged in the form of gas permeable frames with fixed elastic porous partitions 4 in the form of cylindrical gas permeable shells from elastic material. Air is injected through porous partition 4 of distributor 1b, actuating it in direction that is perpendicular to its surface, due to pulses of air pressure created by pulsator 7a. Amplitude of partition 4 oscillations are maintained in the range that exceeds diameter of its pores 2-30 times. It is possible to inject air in pulsed manner and serially in chambers of multi-chamber structural distributor.

EFFECT: mass exchange is intensified without increase of power inputs.

7 cl, 9 dwg, 1 ex