Design scheme of standardized electric flocculation equipment

A design scheme and electrocoagulation technology, applied in chemical instruments and methods, flotation water/sewage treatment, water/sewage treatment, etc., can solve the problems of immature equipment design scheme and difficult standardization of equipment, and improve water flow turbulence Degree, rationalization of equipment structure, and the effect of preventing electrode passivation
CN102010037AInactive Publication Date: 2011-04-13王惠丰
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
王惠丰
Publication Date
2011-04-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a design scheme of standardized electric flocculation equipment by a core idea that the electrolysis process and the coagulation floatation process are separately realized in two unit processes and are designed according to respective principles. The standardized electric flocculation equipment consists of a flow regulation device, an electrolysis reactor, a separation device, a power supply and a control system, wherein a plate of the electrolysis reactor is placed horizontally, connected in bipolar type, and combined with an electrode fixing frame to form a flow guide system; the separation device selects a vertical flow type floatation tank with water fed in the center and water discharged at periphery, and is equipped with a central flow guide cylinder, a slag and mud scraping device, and a slag and mud discharging device and the like; and the power supply adopts a direct-current stabilized power supply of a silicon-controlled integrated circuit, which has automatic timed electrode reversing function. The design scheme has the advantages of reasonable structure, high process efficiency, good effluent quality and high safety and the like, and can ensure that the energy consumption is 75-90% lower than that of the traditional equipment, strengthen the coagulation floatation process, reduce the blockage, and prevent the passivation of the electrode.
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Description

technical field

[0001] The invention relates to a waste water treatment device, in particular to a design proposal of a standardized electric flocculation equipment. Background technique

[0002] Electrocoagulation is a water treatment process that uses soluble metal anodes to flocculate metal hydroxides produced during electrolysis to remove pollutants in water. In reality, anode materials are usually made of easily available and cheap metals such as aluminum and iron. Taking iron as an example, the basic reaction process is as follows:

[0003] Anode reaction: Fe+2e→Fe 2+

[0004] Cathodic reaction: 2H 2 O+2e→H 2 ↑+2OH -

[0005] Hydrolysis reaction: Fe 2+ +2OH - →Fe(OH) 2 ↓

[0006] The ferrous hydroxide precipitate produced by electrolysis has good flocculation and adsorption properties, and can effectively remove pollutants from wastewater. At the same time, the hydrogen gas precipitated from the cathode during electrolysis can form a large number of tiny bub...

Claims

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