A waste compaction system includes a trolley for collecting waste and a docking station that is integratable into a cabin monument of a vehicle. The trolley includes a housing with chambers for waste, an opening for introducing waste, a vacuum compaction mechanism assigned to a chamber, and a suction port accessible from outside the housing and couplable to the compaction mechanism. The compaction mechanism includes a compaction sheath extending from a bottom of the housing to a frame arranged opposite the bottom, and is fillable through the opening, and a rigid plate is arranged on or in at least one lateral surface of the compaction sheath and moves together with the compaction sheath during the evacuation thereof. The docking station and the trolley mate with each other. The docking station includes another suction port that is couplable to a suction line in the vehicle and the first suction port.