Abstract: A method for cleaning a plastic's surface so as to effect removing metallic particulate contaminants from the plastic's surface, including rinsing the plastic's surface with electrolyzed water, anodic water, cathodic water, or ozone, so as to remove positive charges left on the plastic's surface by the anodic water, and then rinsing the plastic's surface with deionized water; wherein the rinsing of the plastic's surface with the electrolyzed water, anodic water, cathodic water, or ozone, and then the deionized water effects cleansing of the plastic's surface to a predetermined cleanliness value.

Abstract: The invention relates to a method for cleaning a synthetic surface, in particular to remove metal dirt and/or particles therefrom, said method being characterized by the following steps: a) the synthetic surface is rinsed with deionized water; b) the synthetic surface is rinsed with electrolyzed water; and c) the synthetic surface is rinsed with deionized water.

Abstract: The invention relates to a process for the oxidation of carbon-containing organic compounds where the said compounds have at least one bond with a bond order >1, wherein an oxidizing of these carbon-containing organic compounds to be oxidized is performed with electrochemically generated C—O—O oxidizing agents, in particular peroxodicarbonate. Also described is the use of C—O—O oxidizing agents generated electrochemically from carbonate, in particular peroxodicarbonate, as oxidizing agents for the oxidation of carbon-containing organic compounds, in particular carbon-containing organic compounds where the said compounds have at least one bond with a bond order >1.

Abstract: The invention relates to a method for cleaning a synthetic surface, in particular to remove metal dirt and/or particles therefrom, said method being characterized by the following steps: a) the synthetic surface is rinsed with deionized water; b) the synthetic surface is rinsed with electrolyzed water; and c) the synthetic surface is rinsed with deionized water.

Abstract: The invention relates to a method and a device for producing diluted hydrofluoric acid using an electrode arrangement (1), which has an anode chamber (2) with an anode (4) and a cathode chamber (6) with a cathode (8), which are separated from one another by an anion exchange membrane (10), wherein in the method—pure water is guided through the anode chamber (2), —pure water, which includes at least one electrolyte which forms fluoride ions (F?), is guided through the cathode chamber (6), —and an electrical voltage is applied between the anode (4) and the cathode (8) such that the fluoride ions (F?) are moved through the anion exchange membrane (10) into the anode chamber (2), and an electrical current flows.

Abstract: The invention relates to a method for producing a diamond electrode, which comprises the following steps: a) providing a main body (2) composed of silicon, the dimensions of which are greater than the dimensions of the diamond electrode (22) to be produced, b) etching at least one recess (10) into the surface of the main body (2), c) introducing predetermined breaking points (18) into the main body (2), d) coating the main body (2) with diamond, e) breaking the diamond electrode (22) out of the main body (2) along the predetermined breaking points (18).

Abstract: An apparatus for electrochemical treatment of wastewater has at least one electrolysis cell through which the wastewater to be treated is guided. The electrolysis cell has a multitude of electrode assemblies that have electrodes arranged such that the wastewater to be treated is guided through holes in the electrodes. At least one of the electrode assemblies has three electrodes arranged such that the wastewater to be treated is guided through all the electrodes.

Abstract: The invention relates to an electrode arrangement (10) for electrochemically treating a liquid. The electrode arrangement (10) has two electrodes (2), each of which has at least one electrode surface (4) and at least one through-flow chamber (34) with at least one inlet (22) and at least one outlet (24). The at least one through-flow chamber (34) is delimited on at least one first face by at least one electrode (2) which has a structure (8) on its electrode surface (4) such that a distance between the electrode surface (4) and a second through-flow chamber (34) face lying opposite the first face is varied.

Abstract: The invention relates to a method for electrochemically producing electrolyzed water in an electrode arrangement (10) which has an anode chamber and a cathode chamber that are separated by an ion-selective membrane (30). The anode chamber is delimited on at least one side by at least one anode (2), and the cathode chamber is delimited on at least one side by at least one cathode (2). In the method: a) water, in particular distilled water or ultra purified water, in which an electrolyte is located, is conducted through the anode chamber, b) water, in particular distilled water or ultra purified water, is conducted through the cathode chamber, c) the water, in particular the distilled water or the ultra-purified water, is mixed and in particular set into a turbulent flow in the anode chamber and/or cathode chamber, and d) an electric voltage is applied to the anode and the cathode such that electrolyzed water is produced in the cathode chamber.

Abstract: A gemstone has a plate-shaped support having a surface with at least one pyramid-shaped depression. A precious stone layer is produced by vapor phase deposition on the plate-shaped support. The precious stone layer can be cut.

Abstract: In an apparatus for coating a substrate by means of a chemical gas phase separation process, the arrangement of the filaments (5, 17, 26) at least partially surrounding the substrate to be coated is not merely two-dimensional but three-dimensional in respect of the substrate.