| 摘要 |
FIELD: treatment of industrial and household sewage with use of diffusers, aeration of sewage. SUBSTANCE: disc aerator includes polymer body with L-shaped circular protrusion over periphery and ring band with slit grooves, perforated rubber membrane with L-shaped internal circular groove comparable with L-shaped circular protrusion of body and rubber fixing tenons with thickening on end oriented inwards made as single unit with rubber membrane, uniaxial and comparable with slit grooves of body and with U-shaped external groove proportional to height of gripping clamp. EFFECT: improved tightness of aerator, reliability of anchoring of rubber membrane in operational range of air consumption. 3 cl, 5 dwg
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