A biological toilet in which excrement and possibly garbage on a grid are brought to accelerated fermentation by supplemental heat and ventilation. The heat is supplied from a closed pipe loop containing a liquid heat transferring medium, which is circulated by a thermosiphon pump inserted in the loop and heated by a gas burner or an electric heating element.
A receptacle for the production of earth improving substances from organic waste comprising an enclosure divided into two sections, the upper section being detachably mounted on the lower section and serving the purpose of a lid for the last mentioned section, the lower section in addition comprising an inclining bottom portion and a horizontal or nearly horizontal bottom portion, and further supply ducts for air, said ducts communicating with the interior of said sections via openings and air exhaust ducts, characterized by at least part of the bottom having the form of a staircase with oblique steps and holes or slits arranged between adjacent steps, said steps being so arranged as to prevent waste material from falling down into said air supply channel.
A decomposition toilet with a casing having a downwards-rearwards sloping grid for faeces and a heating element in the casing bottom for heating urine by conduction. A thermostat for switching the heating element on and off is located immediately on top of the heating element so as to detect presence or absence of urine. An air inlet is located at the casing front below the grid and air passes over the casing bottom, through a duct inside the casing rear wall to an exhaust fan at the rear top casing portion.
A device for destroying bacteria which accumulates in drainage pipes and the like. Previously, no device has been provided which will destroy bacteria which accumulates in drainage pipes. This invention provides a housing (5,58) provided in the S-bend of a drainage pipe and includes a heating element (32,34,68) which causes water and bacteria which gathers in the housing (5,58) to boil to destroy bacteria. Heat is also transferred to the drainage pipe to destroy any bacteria which gathers on the side of the pipe. The invention may also include a timer (80) to supply power to the heating means (32,34,68) for a desired amount of time and also may include an automatic actuator (62) which causes the timer (80) to supply power to the heating means (32,34,68) when water and/or contaminated matter passes down the drainage pipe.
There is an emptying opening (18) at a given height on one side of the bottom (29) of the composting chamber (20) in a decomposition latrine with a rotatable stirring means (26a). In normal stirring, the means rotates for moving material away from the opening, and in emptying, the direction of rotation is reversed so that material may be discharged through the opening. The stirring means comprises six to twelve stirring members in the form of flat, bar-like members (50) extending between the end walls (11, 34) of the chamber (20).
A container for moulderable organic waste such as toilet refuse or moulderable kitchen garbage, having a grate provided freely above the bottom of the container, and an inlet for air to be circulated below the grate and upwardly to an outlet at the top of the container, the container being of such small size that its width is less than about one meter.
