| 摘要 |
FIELD: process engineering. ^ SUBSTANCE: invention relates to biological treatment of effluents. Effluent is treated in aerator. Aerator membrane comprises perforated annular elastic membrane 1 with central opening 2. Central opening diameter d exceeds or equals membrane ring width . ^ EFFECT: improved aeration and mass transfer in water-air flow above membrane. ^ 4 cl, 8 dwg |
