Waste collection system

A waste collection system, comprising:

• a receptacle, including
• a vessel defining an opening that opens into an interior of the vessel and at least one drainage aperture separate from the opening to allow gas exchange between the interior and an exterior of the vessel,
• a valve mounted on to the vessel to mitigate flow of waste from the interior to the exterior via the opening, and
• a first plurality of retaining elements distributed around the opening exterior to the valve;
• a first bag mounted in the interior of the vessel around the opening to receive waste via the valve, the first bag being perforated and expandable within the interior to expand as the waste is received into the vessel;
• and
• a second bag, including
• a fenestrated body to hold waste and defining an open end, and
• a second plurality of retaining elements distributed around the open end and complementary to the first plurality of retaining elements to retain the second bag around the opening exterior to the valve.

A waste receptacle, comprising:

• a vessel defining an opening that opens into an interior of the vessel and at least one drainage aperture separate from the opening to allow gas exchange between the interior and an exterior of the vessel;
• a valve mounted on to the vessel to mitigate flow of waste from the interior to the exterior via the opening;
• and
• a first plurality of retaining elements distributed around the opening exterior to the valve and complementary to a second plurality of retaining elements on a second bag to allow the second bag to be retained around the opening, exterior to the valve, wherein a first bag is mounted in the interior of the vessel around the opening to receive waste via the valve, the first bag being perforated and expandable within the interior to expand as the waste is received into the vessel.