Biological toilet with no liquid effluent

摘要

The toilet has a seat (1) connected by a falling pipe (3) to a lower tank (4) that has screens to separate liquids from solids. The liquids are heated (6) to evaporate them, and air is extracted (7) from the space above the solid waste. The waste falls onto the high end of a diagonal screen (5) that allows liquids to fall through and collect in a chamber (8) below. The liquids are thus retained in the lower part (9, 12) of the tank and the solids in the upper part (11). The lowest part (14) of the screen is above the level of the liquid. The end of the tank (15) has a door for access to the solid waste compartment. The air extractor (7) is placed in the space above the liquid and is connected to an extractor duct with an extraction fan.