FILTERING DEVICE INSTALLED IN RAIN RECEIVING WELL Russian patent published in 2016 - IPC E03F5/04 

FIELD: processing and recycling of wastes.

SUBSTANCE: invention relates to wastewater treatment. Device comprises filtering (2) and settling (1) chambers, installed in rain receiving well and arranged one inside the other, in bottom part (5 and 4) of each of which central through hole (10 and 9) is located, as well as vertically oriented overflow pipe (11) with top open end section (12), installed inside said chambers and passing through said through holes. Settling chamber (1) is open from above and has solid side surface (3) and bottom part (4). Filtering chamber (2) is closed from above and has holes (6) for water passage in bottom part (5). Filtering chamber (2) is installed in settling chamber (1) with gap between side surfaces (7 and 3) of said chambers and their bottom parts (5 and 4). In lower part of the filtering chamber (2) filtering material (13) is placed. Overflow pipe (11) is installed so that its top open end section (12) is located in filtering chamber (2) above level of filtering material (13) with possibility of penetration into said end section of water, passing through filtering material (13). In side surface of filtering chamber (2) in area located nearby its bottom part (5) side openings (8) for water passage are located. Filtering chamber (2) is provided with annular baffle plate (16), made in form of truncated cone narrowing downwards, installed inside filtering chamber (2) with gap relative to its bottom part (5) near location zone of side holes (8) for passage of water with provision of deviation of jets of water falling on said annular baffle plate (16) from said side holes (8) in direction to bottom part (5) of filtering chamber (2).

EFFECT: higher efficiency of device operation is achieved.

1 cl, 1 dwg