Cover for collection container for organic waste - has integral holder tray for formed biological filler

摘要

The cover (1) has a ventilation aperture, and the container has a removable biological filter in front of the aperture. The cover has an integral holder tray (2) with air apertures (4) in the base (3). The tray has a lid (5) with air apertures (9). The lid has a central fastener socket (6), which locks with an anchoring part (7) in the cover, forming a screw or bayonet connection. The air aperture increase in size conically towards the interior, and are protected by downward projecting hoods. The biological filter material consists of a substrate and micro organisms, and forms a pressed body, which is fitted into the holder tray.