A device and a process for purification of grey water

A device for purification of grey water comprising:

• i. an air tight container (1) for holding grey water comprising an outlet port (2) for discharging out foam;
• ii. the container (1) comprising a means for aeration (3a) of contents of the container (1);
• iii. a foam conveyor (4) connected to the outlet port (2);
• iv. a foam breaking device (5)
• wherein the outlet port (2) is in fluid communication with a foam breaking device (5) comprising:
• a. an inverted cup (6)
• b. a collection tray (8);
• c. a disc (9) connected to a motor (14) to facilitate rotation of the disc (9);
• wherein the foam conveyor (4) establishes fluid communication between the outlet port (2) and the disc (9) of the foam breaking device (5) wherein;
• either the foam breaking device (5) is placed external to the container (1) and is such that the inverted cup (6) has an open mouth (7) which is positioned in the collection tray (8), the disc (9) being placed in the inverted cup (6) and rotatably connected to the base of the inverted cup (6);
• or the inverted cup is positioned over the collection tray (8) and fixed to the collection tray (8) and is provided with an air vent (7), the disc (9) being placed above the collection tray (8) and rotatably connected to the lid of the collection tray (8);
• the device being characterised in that the surface of the disc is rough and has concentric corrugations.