C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 9/00 (2006.01) C02F 1/52 (2006.01)
Patent
CA 2242192
An automatically operating sewage purification plant for industrial and domestic sewage systems for instance, comprising at least one conduit (15) for conveying the untreated sewage to at least one first chamber (13; 13'), the preliminary sedimentation chamber in which larger solid particles are separated out, at least one second chamber (14; 14') which communicates with the first chamber (13; 13') via at least one delivery conduit (18; 18') and in which partially purified supernatant liquid that flows in from the first chamber (13; 13') undergoes a chemical purification process. The second chamber (14; 14') is provided with an outlet conduit (35) for discharging the purified supernatant liquid from the second chamber (14; 14'): According to the invention, the second chamber (14; 14') is provided in its upper part with a supernatent receiving device (19) which receives the partially purified supernatant liquid from the first chamber (13; 13') and which is adapted to pivot about an axis when filled to a predetermined level and therewith deliver its load to a cyclone arrangement (27). The plant also includes means (28, 29, 30) for delivering to the cyclone arrangement (27) a chemical or chemical mixture in liquid form stored in a separate container (29).The cyclone arrangement (27) has a central opening through which said chemical or chemical mixture mixed with the now purified sewage water flows down through the second chamber and discharges through an outlet pipe (35). It is suggested that Figure 1 is published together with the abstract
Fetherstonhaugh & Co.
Wallax Miljo Ab
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