Abstract: A waste collection and disposal system utilizing a multi-compartment container and a collection vehicle with compartments corresponding to those of the container so as to keep the different waste materials separated throughout the collection process. The container has a locked cover over each compartment that is automatically unlocked when the container is placed in the inlet chute of the collector vehicle and descends to the bottom of the chute. To assure alignment of the compartments of the container with the proper compartments in the collector vehicle, the locking mechanisms holding the lids over the compartments of the container are arranged in an asymmetrical pattern that corresponds to the relative location of grooves in a tapered inlet chute leading to the compartments in the collector vehicle.