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MMO Titanium Electrodes Used in Sodium Hypochlorite Generator

Sodium hypochlorite generator is a device for electrolyzing low concentrations of sodium salt to produce sodium hypochlorite. Sodium hypochlorite, which oxidizes a variety of harmful substances in water, is a strong oxidizing agent and disinfectant. It is good, safe and convenient to use it to sterilize water.

Sodium hypochlorite generator is widely used in industrial, agricultural, various water treatment and environmental disinfection. It covers many fields, such as industrial circulating water chlorination, hospital sewage treatment, table-ware disinfection, ward disinfection, drinking water disinfection, water disinfection in the swimming pool and the hotel, cyanide - containing industrial wastewater treatment, pulp bleaching, fiber bleaching, industrial wastewater treatment in electronics, pharmaceuticals, pesticides and chemical areas, as well as poultry drinking water and environmental disinfection, etc.

Features of Sodium Hypochlorite Generator Equipment:

1.Qixin type sodium hypochlorite generator is a reaction combination generator, for salt dissolving, dilute salt water deploying, dosing and sodium hypochlorite cycling all occur in a trough. It has the advantages of less cost, small occupation space, quick launch and flexible setting.

2.Qixin type sodium hypochlorite generator is a combination of tubular, internal cooling, unipolar and string phase. The matrix of the Qixin sodium hypochlorite generator anode is titanium, which is coated with ruthenium dioxide, bearing the advantages of low potential and long span life. Each of it occurs successively 200-300 hours for each time under normal operation. Qixin type sodium hypochlorite generator processes in diaphragm-type natural circulation form. Therefore, salt utilization is high, so does the electrolysis process current efficiency. Qixin type sodium hypochlorite generator has the advantages of  high yield, low energy consumption and low operating costs.

The Sodium Hypochlorite Generator Working Principle

Salt solution contains ions like Na+, H+, OH- and Cl-. According to the theory of electrolysis, whileinserting electrode at a certain voltage, electrolyte solution conducts due to the movement of ions andthe electrode reaction. Then, Cl-, OH- and other negative ions move towards the anode, and Na +, H + andother positive ions move towards the cathode, and the corresponding electrode discharge occurs,oxidation-reduction reaction takes place and generate corresponding materials. The electrolysis processof the brine solution is expressed by the following reaction equation: NaCl+H2O→NaClO+H2↑

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Titanium Electrodes Usedin Industrial Wastewater Treatment

Titanium Electrodes Usedin Industrial Wastewater Treatment

With the development of industry, organic wastewater discharge is increasing, especially high concentration organic wastewater in the fields of chemical and pharmaceutical emission. With high color and high toxicity, it contains a large number of biodegradation-resistant components. Electrocatalytic oxidation water treatment, which has been applied in hydrocarbon, alcohol, ether, phenol and other organic wastewater treatment, has many advantages: no need to add any chemicals; small size; small space occupied; and does not cause secondary pollution. The reaction of oxidation to remove organic matter mainly occurs on the anode surface (oxidation of the anode surface directly degrade the organic matter or form a strong oxidant active species called • OH on the anode surface to further oxidize and degrade the organic matter).

The Composition of Refractory Industrial Wastewater

Halogen compounds, ether compounds, nitro, nitroso, azo compounds, tertiary amines and quaternary ammonium salts, organophosphorus, mercury, tin compounds, carbon heterocyclic compounds, oxygen-, nitrogen- and sulfur-heterocyclic compounds. (Toxic to organisms)

Basic Principles of Electrocatalytic Oxidation Technology

The mechanism of the electrocatalytic oxidation process for organic wastewater treatment is to degrade the organic matter directly through the high potential and high catalytic activity of the anode surface or through reaction between the strong oxidants made by the anode surface (such as H2O2, • OH, ClO-, etc.) and toxic organic matter, and further degrade the toxic pollutants in wastewater.

Advantages of Electrocatalytic Oxidation Technology

Anode material:

1.Oxygen evolution potential ≥1.70v, strong oxidation;

2.High current efficiency;

3.Insoluble anode, corrosion-resistant.

4.Anodic matrix reusable.

5.Low cost, long life span, cost-effective.

Wastewater treatment system:

1.Degrade stubborn or toxic contaminants;

2.Fully automatic operation, simple process;

3.Suitable for high salt load;

4.No sludge, no pollution transfer;

5.Degrade COD, decolorize;

6.Inactivate and sterilize;