Abstract: The invention relates to an electrolytic reactor, in particular for separating phosphate from phosphate-containing liquids and/or recovering phosphate salts, comprising an inlet (16) for an electrolysis liquid and a flow channel (20) adjoining same, a magnesium metering unit (12) comprising two electrodes (22, 24) of different polarity being arranged in the flow channel (20), at least one of the two electrodes (22, 24) being a sacrificial electrode (20), wherein the magnesium metering unit (12) is designed as a free-level reactor and a mixing/sedimentation unit (14) being connected downstream of the magnesium metering unit (12) in the direction of flow, said mixing/sedimentation unit having a feed inlet (40) for the phosphate-containing liquids and an outlet (26) for the purified liquid for the obtained phosphate product.

Abstract: The invention concerns an electrolytic reactor, in particular for separating phosphate from phosphate-containing liquids and recovering phosphate salts, comprising a housing, an inlet and an outlet for the liquid and two electrodes of different polarity, which enclose a reactor chamber between them, whereby at least one of the two electrodes is a sacrificial electrode and consists of a magnesium-containing material, whereby the sacrificial electrode is constructed of trapezoid bars which have a first and a second upper surface, whereby the first upper surface is smaller than the second upper surface, and whereby four lateral surfaces connect the first upper surface with the second upper surface.

Abstract: The invention provides an installation (10) for separating phosphate from phosphate-containing liquids and obtaining phosphate salts, having one or more reactors (12) which each have two electrodes of opposing polarity and which, between them, span a reaction area, wherein each reactor (12) has an inlet (14) and an outlet (16), in which the outlet (16) is separated into a recirculation (22) and a discharge stream (24) and the recirculation (22) supplies part of the liquid from the outlet (16) of the reactor (12) to the inlet of the same reactor or a different reactor (12); and to a method for this and to a biological wastewater treatment plant and to a method for operating the latter.

Abstract: The invention concerns an electrolytic reactor, in particular for separating phosphate from phosphate-containing liquids and recovering phosphate salts, comprising a housing, an inlet and an outlet for the liquid and two electrodes of different polarity, which enclose a reactor chamber between them, whereby at least one of the two electrodes is a sacrificial electrode, whereby between the inlet and the reaction chamber a pre-chamber is provided in which the inserts are arranged such that the inlet stream is divided by the inserts into two partial streams and directed around the inserts.

Abstract: The invention concerns an electrolytic reactor, in particular for separating phosphate from phosphate-containing liquids and recovering phosphate salts, comprising a housing, an inlet and an outlet for the liquid and two electrodes of different polarity, which enclose a reactor chamber between them, whereby at least one of the two electrodes is a sacrificial electrode and consists of a magnesium-containing material, whereby the sacrificial electrode is constructed of trapezoid bars which have a first and a second upper surface, whereby the first upper surface is smaller than the second upper surface, and whereby four lateral surfaces connect the first upper surface with the second upper surface.

Abstract: The present invention concerns a device (10) for the photochemical treatment of a liquid medium, the device (10) having at least one flow channel (16a, 16b) for the liquid medium to pass through, said flow channel being delimited at least in sections by a UV-light-emitting surface (14) of at least one UV-light-producing body (12). The at least one UV-light-producing body (12) is designed such that the passing liquid medium can be electrically contacted and replaces at least one electrode for producing the UV light in the device (10).

Abstract: The invention relates to a device for producing UV light. Said device provides light from light sources that operate in accordance with different physical principles. The device comprises a chamber having several gas-filled plasma chambers (11, 12), wherein the chamber has at least one area (37, 39) transparent to UV light and/or VUV light. A first group (11) of plasma chambers is filled with an ionizable gas containing mercury and a second group (12) of plasma chambers is filled with a gas that forms excimers when suitably excited.

Abstract: The invention relates to a device (10) for the photochemical treatment or purification of polluted water. Said device (10) comprises at least one flow channel (16) for guiding the polluted water, which is defined at least in sections by a UV-light output face (14) of at least one of the UV-light-generating bodies (12). The at least one flow channel (16) can comprise swirling elements (22; 24; 26; 28; 30) for the polluted water.

Abstract: The present invention concerns a device (10) for the photochemical treatment of a liquid medium, the device (10) having at least one flow channel (16a, 16b) for the liquid medium to pass through, said flow channel being delimited at least in sections by a UV-light-emitting surface (14) of at least one UV-light-producing body (12). The at least one UV-light-producing body (12) is designed such that the passing liquid medium can be electrically contacted and replaces at least one electrode for producing the UV light in the device (10).

Abstract: A reactor is proposed that comprises a cathode and a sacrificial anode, in which a spacing between cathode and anode is kept constant by the cathode following, or tracking, the anode.

Abstract: In a method for recovering volatile components from a solid material, a liquid phase is mechanically removed from the solid material. Subsequently, the solid material is dried by exposing the solid material to superheated steam circulating in a closed circuit. From the closed circuit excess steam that contains volatile components given off by the solid material is removed. The volatile components are separated from the excess steam by condensing the excess steam to a condensed phase and the volatile components are from the condensed phase by adding suitable ions to the condensed phase to crystallize the volatile components.

Abstract: In a method for recovering volatile components from a solid material, a liquid phase is mechanically removed from the solid material. Subsequently, the solid material is dried by exposing the solid material to superheated steam circulating in a closed circuit. From the closed circuit excess steam that contains volatile components given off by the solid material is removed. The volatile components are separated from the excess steam by condensing the excess steam to a condensed phase and the volatile components are from the condensed phase by adding suitable ions to the condensed phase to crystallize the volatile components.

Abstract: In a method for desalting aqueous solutions by means of electrodialysis in an electrochemical cell (10) comprising a first electrode (16) and a second electrode (20), wherein the second electrode (20) has a polarity opposite to the first electrode and wherein at the first electrode (16) an electrolysis gas and ions are formed, it is proposed that the electrolysis gas and the ions are reacted at the second electrode (20).

Abstract: The invention relates to a device for producing UV light. Said device provides light from light sources that operate in accordance with different physical principles. The device comprises a chamber wherein the chamber has at least one area (37, 39) having several gas-filled plasma chambers (11 12), transparent to UV light and/or VUV light. A first group (11) of plasma chambers is filled with an ionizable gas containing mercury and a second group (12) of plasma chambers is filled with a gas that forms excimers when suitably excited.

Abstract: The invention relates to a method for recovering organic and inorganic phosphorous compounds from solid components of organic residues.

Abstract: An apparatus for water treatment is proposed that comprises a means for mechanical separation constructed as a membrane (12) or filter surface, such that the means for mechanical separation is constructed as an anode and a cathode (18) is arranged at a distance therefrom.

Abstract: The invention relates to a reactor (10) for completely separating phosphate from a liquid and for recovering phosphate salts, comprising a housing (12) and two electrodes having differing polarities, wherein a sacrificial anode (16) made of a magnesium-containing material and an inert cathode (18) are arranged concentrically inside the housing (12).

Abstract: The invention relates to a method for completely separating phosphate from a liquid and for recovering phosphate salts in a reactor, which is equipped with two groups of electrodes having differing polarities, wherein the sacrificial electrodes consist of a magnesium-containing material, and wherein said method comprises the following method steps: the application of a voltage to the electrodes; the continuous flow of the liquid through the reactor; the precipitation of phosphate salts from the liquid; and the settling of the crystals in the cone-shaped bottom of the reactor. For a galvanic procedure, no voltage is applied to the electrodes.

Abstract: The invention relates to a method for recovering volatile components from a solid (10), characterized by the following method steps: drying (12) the solid (10) by means of superheated steam, withdrawing excess steam (14) from a closed circuit (23), and recovering (18) the volatile components from the excess steam (14).

Abstract: A process and, respectively a device, for treating screenings from the mechanical cleaning stage of a sewage treatment plant is defined in that the screenings have electromagnetic waves in the frequency range between 1 GHz (gigahertz) and 1 THz (terahertz), so-called microwaves, applied to them for a predeterminable period.