Carbon filter for electrochemical regeneration of active carbon

Abstract

The invention discloses a carbon filter for electrochemical regeneration of active carbon. The carbon filter is characterized in that an electrode assembly (4) is arranged in a rectangular straight cylindrical shell (2); active carbon (5) is filled in the rectangular straight cylindrical shell (2); an upper head (1) is installed on the rectangular straight cylindrical shell (2); a lower head (3) is installed on the bottom of the rectangular straight cylindrical shell (2); the upper head (1) and the lower head (3) are provided with an upper water inlet / outlet (6) and a lower water inlet / outlet (7); in the upper head (1) , the upper water inlet / outlet (6) is connected to an upper hydraulic distributor (8); in the lower head (3), the lower water inlet / outlet (7) is connected to a lower hydraulic distributor (9); The volume of the active carbon (5) filled in the rectangular straight cylindrical shell (2) is 1 / 2-2 / 3 of the volume of the rectangular straight cylindrical shell (2); in filtration by the carbon filter, water flows into the carbon filter from top and flows out of the carbon filter from bottom, and in electrochemical regeneration carried out after the active carbon is in an adsorption saturation state, the water flows into the carbon filter from bottom and flows out of the carbon filter from top; under the action of the water flows, the active carbon suspend between the water and flows between anode pieces and cathode pieces of the electrode assembly (4) and simultaneously, power is supplied to the anode pieces and the cathode pieces so that electrochemical oxidation regeneration of the active carbon is realized; and in the rectangular straight cylindrical shell (2), the anode pieces (10) and the cathode pieces (11) are arranged alternately in the electrode assembly (4) and are fixed by electrode piece fixing rods (12).

Description

technical field [0001] The present invention relates to a carbon filter, in particular to a carbon filter capable of electrochemically regenerating activated carbon. Background technique [0002] Activated carbon has excellent adsorption due to its large number of voids, and is widely used in the fields of water purification, material purification and decolorization. Activated carbon can remove smell and taste, chroma, residual chlorine, colloid, organic matter, heavy metals and radioactive substances in water. It is the earliest and most widely used water purification material in water purifiers. [0003] The purification principle of activated carbon is mainly physical adsorption and chemical adsorption. After using activated carbon for a period of time, it will reach adsorption saturation and lose its purification ability. Discarding activated carbon that has reached adsorption saturation will cause problems such as waste of resources and secondary pollution. Activated...

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Problems solved by technology

However, since the device needs to use a microporous titanium filter electrode array, the cost of the device is high

In addition, when the device regenerates the activated carbon, the activated carbon is still in a densely packed state, causing a short circuit in the activated carbon layer, which converts most of the electrical energy into Joule heat, thereby affecting the degradation effect of pollutants and increasing the energy consumption of activated carbon regeneration.

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