Abstract: The invention relates to a thermoelectric element, comprising an electrically conductive carrier layer, an active element, an electrically conductive top layer wherein the carrier layer and the top layer form the outgoing electrode, wherein, in addition, the active element has a p-n junction from an n-type semiconductor to a p-type semiconductor, and wherein the active element is arranged between the carrier layer and the top layer and is electrically conductively connected thereto, and wherein the n-type semiconductor is formed from the group of cyanoferrates. The invention also relates to an energy conversion element comprising a photovoltaic element and a thermoelectric element, wherein the photovoltaic element has an entry side for optical energy and a base surface opposite said entry side, wherein the thermoelectric element is arranged with its carrier layer in thermal contact on the base surface.

Abstract: A method and integrated apparatus for disposing of an organic halogen compound comprising phosphorus and at least one element selected from the group consisting of sulfur and a metal, in addition to carbon, hydrogen and oxygen, in atomic bond, comprises the steps of ionizing the compound to obtain ionization products, splitting up the ionization products by electrodialysis to obtain ionic end products and residual organic substances, and disposing of the ionic end products and residual organic substances.

Abstract: A method for the thermal decomposition of a fluid toxic substance contained in a gas comprises a cylindrical main combustion chamber and a secondary combustion chamber arranged thereabove. An inlet opening leads into the main combustion chamber at an angle to introduce a stream of the gas containing the toxic substance into the main combustion chamber with an angular momentum, a burner is arranged to direct a flame into the main combustion chamber above the inlet opening for subjecting the gas containing the toxic substance to combustion, and an annular gas stream retaining device is arranged above the burner.

Abstract: An apparatus for the thermal decomposition of a fluid toxic substance contained in a gas comprises a cylindrical main combustion chamber and a secondary combustion chamber arranged thereabove. An inlet opening leads into the main combustion chamber at an angle to introduce a stream of the gas containing the toxic substance into the main combustion chamber with an angular momentum, a burner is arranged to direct a flame into the main combustion chamber above the inlet opening for subjecting the gas containing the toxic substance to combustion, and an annular gas stream retaining device is arranged above the burner.