| 摘要 |
1,227,767. Sewage filter. RUDNE A NERUDNE DOLY, NARODNI PODNIK. 13 June, 1968 [30 June, 1967], No. 28163/68. Heading B1D. [Also in Division C1] A suspension of sewage treated with a coagulating agent is stirred by grate 15 in homogenising space A. The homogenised suspension is fed through space B through the floating sludge blanket and clear water from space D passes to the graded multi layer filter bed F and is discharged at 8. Liquid from thickening space C can also pass to filter F via conduit 7. The enclosing vessel is spherical. |
