Abstract: There are provided a waste collection system and a method for opening/closing a waste receiving device in the waste collecting system. The waste collection system comprises: a cover formed to be opened/closed on a waste receiving device; a damper formed to be opened/closed under the waste receiving device through the cover and an interlocker; and a housing. The waste collection system further comprises: a user recognition system positioned at the front of the housing; and a driving unit for driving the opening/closing of the damper, wherein the driving unit is on/off based on the results of the user recognition system.

Abstract: There is provided an air intake for a vacuum-conveyance waste collection system, to form a high-speed air flow by allowing air to enter a conveying line through which waste being put into a waste receiving device is conveyed to a central waste collection station.

Abstract: There is provided a waste discharge valve for a vacuum-conveyance waste collection system in which waste put in a waste receiving device is automatically conveyed to a central waste collection station through a conveying line.

Abstract: There is provided a capacity-limited waste receiving device for a waste collection system, in which a waste receiving device in a vacuum-conveyance waste collection system (which conveys waste along a line) automatically conveying the waste to a central collecting station is improved to be more efficient.