A toilet apparatus includes a waste material receiving bowl having a top member with an opening defining an annular seating surface, and an agitation device to agitate an absorbent media and the waste material disposed in the disposable bag while the agitation device does not come into contact with the absorbent media and the waste material. The toilet apparatus also includes a disposable bag having an upper edge to be releasably secured to the annular seating surface such that waste material introduced through the opening is received by and retained in the bag.