A toilet waste holding apparatus for a vehicle has a vent which sucks away tank gasses and odors, without permitting sewage overflow to enter the vent. An insert allows entrance of clean air to the tank and access to the interior for cleaning.

A method of incinerating toilet waste comprising applying combustion heat in substantially the manner of applying heat to the bottom of a cooking pot under and to and through the bottom of a heat permeable upwardly opening receptacle containing the waste and thereby effecting substantial boiling and incineration of the waste, supplying preheated air into the receptacle, and compelling vapor and products of combustion generated by the combustion heat to pass from the receptacle into a combustion zone under the receptacle and through the combustion heat and into an after burner flue leading from the combustion chamber. An aesthetically desirable and sanitary masking foam may be applied to the surface of accumulated toilet waste in the receptacle prior to boiling and incineration.

A method and an apparatus for heating fluid with a gas heater and distilling fluid with the pilot light of the gas heater are disclosed. The apparatus for heating fluid and distilling fluid includes a main tank for containing fluid to be heated, a heater, adapted to have a pilot light, for heating the fluid in said main tank and an evaporator tank for vaporizing fluid received therein with heat from the pilot light. The method of heating fluid and distilling fluid includes heating a first volume of fluid with a heater having a pilot light and heating a second volume of fluid with the pilot light. A second apparatus for heating fluid and distilling fluid includes a main tank for containing fluid to be heated, a condensing tank adapted to pass fluid to said main tank, an evaporator tank for vaporizing fluid received therein, a condensing coil, disposed in said condensing tank, for exchanging heat between fluid vaporized by said evaporator tank and fluid in said condensing tank, a distillate tank adapted to receive condensed fluid from said condensing coil and an electric filament for heating fluid in said evaporator tank when a level in said distillate tank equals or exceeds a predetermined level.

A process and apparatus for stripping a volatile component from a liquid. The volatile component is destroyed by exothermic reaction with an active component in the gas phase, typically over a catalyst. Heat generated by the reaction of the volatile and active components is transferred to a fluid contact zone in which the organic component is stripped from the liquid stream by a stripping gas. Transfer of heat to the fluid contact zone increases the equilibrium partial pressure of the volatile component in the gas phase and thus increases the driving force for mass transfer in the stripping operation. Preferably, the volatile component is reacted with the active component in a regenerative heat transfer reaction system.

An improved heat evaporation soil remediation system has feeder bin, rotary dryer and baghouse elements integrated as a single compact unit onto a readily transportable trailer platform. Contaminated soil is fed by means of an auger and slinger belt into an oil burner fired rotary drum for heating by flight induced veiling action and evaporation of volatile contaminants from the soil. Dust-laden exhaust air is cleaned by air expansion and bag filters in a baghouse located over and straddling the dryer. The bags are maintained in position by springs to prevent excessive movement during travel.