A toilet system for use on vehicles, such as railroad trains and boats, wherein the toilet contents are chlorinated and ground into a slurry of a predetermined size prior to pumping out. The system includes a grinder which recirculates the toilet contents through the grinder for a predetermined period of time. The system cannot operate until a chlorine tablet has been inserted into the toilet. A timer may be provided which shuts off the grinder after the aforementioned period of time. A valve may be provided in the system which can be activated to pump out the ground chlorinated contents of the toilet while grinding the same and will run until the holding tak of the toilet is emptied. The macerated and chlorinated waste treated in this system requires a relatively low amount of chlorine and has a bacteria count so low that the ground and chlorinated waste may be dumped in situ, such as along railroad tracks or in a harbor or the like.