WATER PURIFICATION DEVICE Russian patent published in 1998 - IPC

FIELD: water and sewage purification. SUBSTANCE: device has body, suspended layer chamber, shell positioned concentrically between body and suspended layer chamber coupled to upper cone by system of thin-layer settling. Fan-shaped plates positioned at variable slope angle to horizontal plane are secured to shell rigidly. Plate slope angle is minimum in section located near body. It increases in direction of device axis. Spaces between plates increase in radial direction from device. EFFECT: improved purification of water. 4 dwg