Abstract: An apparatus comprises a settling chamber with outlet pipes to discharge purified liquid and sludge and an electrocoagulation chamber installed in the settling chamber and communicating with the latter. The electrocoagulation chamber has an inlet pipe to feed contaminated liquid, an inlet pipe to feed electrolyte, and a system of soluble electrodes disposed below the inlet pipe to feed contaminated liquid. Apertures are provided in the walls of the electrocoagulation chamber along the perimeter thereof below the liquid level in the settling chamber, the apertures receiving the nozzles of injectors which transfer a part of foam from the electrocoagulation chamber to the settling chamber.

Abstract: An apparatus for electrochemical purification of contaminated liquids comprises a settling chamber having an outlet pipe to discharge purified liquid and communicating with an electrocoagulation chamber having soluble electrodes and inlet pipes to feed contaminated liquid and electrolyte, respectively. The apparatus also incorporates piping to return the purified liquid whose purification degree is less than the set value from the settling chamber to the electrocoagulation chamber for re-purification and a purification degree controller which includes a liquid purification degree analyzer, a control unit, and actuating means serving to interrupt the discharge of the purified liquid and the supply of the contaminated liquid and of the liquid whose purification degree is less than the set value, said analyzer, control unit, and actuating means being electrically interconnected.

Abstract: An apparatus for electrochemical purification of contaminated liquids comprises a settling chamber having an outlet pipe for pure liquid and communicating with an electrocoagulation chamber having an inlet pipe for contaminated liquid and an inlet pipe for electrolyte to be supplied thereto. The lower part of the electrocoagulation chamber is provided with a system of soluble electrodes set up within the same part while the upper part of the settling chamber is provided with a system of insoluble electrodes set up lower than the open end of the electrocoagulation chamber. Above the insoluble electrodes there is a distributor having orifices and passages for the liquid to flow from the electrocoagulation chamber to the settling chamber and for foam and a gas to leave the same chambers.

Abstract: An apparatus comprises a settling chamber having an outlet pipe to discharge purified liquid and communicating with an electrocoagulation chamber in whose bottom part a system of soluble electrodes is disposed. The electrocoagulation chamber has an inlet pipe to feed contaminated liquid, disposed above said system of soluble electrodes, and an inlet pipe to feed electrolyte, disposed below said system of soluble electrodes. A separating partition with an aperture and a check valve as well as an injector to deliver a fluid under the check valve are installed in the electrocoagulation chamber between the system of soluble electrodes and the inlet pipe to feed contaminated liquid, the check valve being adapted for a vertical movement under the action of the flow of the fluid delivered by the injector and of the flow of a gas-liquid mixture, ascending from the system of soluble electrodes.

Abstract: The apparatus for electrochemical purification of contaminated liquids comprises a settling chamber with an outlet pipe to discharge purified liquid, which communicates with an electrocoagulation chamber having in its bottom portion a system of soluble electrodes and provided with an inlet pipe to feed contaminated liquid, disposed above said system of soluble electrodes, and with an inlet pipe to feed electrolyte, disposed below said system of electrodes. The bottom portion of the electrocoagulation chamber is also provided with partitions made of an insulating material and intended to reduce the intensity of mixing of liquid currents flowing up the electrocoagulation chamber.

Abstract: A method comprises heating contaminated liquid, cooling electrolyte and subsequently passing the latter through soluble electrodes provided within an electrocoagulation chamber. Next, mixing the heated contaminated liquid is accomplished above the soluble electrodes with an ascending flow of cooled air containing products of dissolution of the soluble electrodes, followed by separating formed foam and sludge within a settling chamber.Apparatus having a settling chamber provided with an outlet pipe to discharge purified liquid. Inside the settling chamber, there is disposed an electrocoagulation chamber provided with an inlet pipe to feed contaminated liquid thereinto, and an inlet pipe to feed electrolyte. In the bottom portion of the electrocoagulation chamber, there is disposed a system of soluble electrodes. A heater communicates with the inlet pipe to feed a contaminated liquid, while a condenser communicates with the inlet pipe to feed electrolyte.