Commodity name: Electrochemical method industrial wastewater treatment titanium anode plate DSA electrode
Product specifications: 100-3000mm can be customized according to customer needs
Product use: Electrocatalytic anodized titanium electrode for electrolytic treatment of industrial wastewater
Material composition: titanium-based coated electrodes, welding parts, etc.
In this electrolysis technology, the main factors affecting the electrolysis effect are: electrode material, electrode area, electrolysis time, auxiliary electrolyte concentration, etc.
1. Principle of electrolysis treatment of industrial wastewater:
The treatment of wastewater by electrolysis or electrochemical methods can be classified according to the objects to be removed and the electrochemical effects produced.
Electrolyzers are equipped with plates. The plates are properly spaced to ensure less power consumption and easy installation, operation and maintenance. The electrolytic cell is divided into two types: unipolar and bipolar according to the way of connecting the power supply of the plates. The characteristic of bipolar electrode electrolyzer is that the middle electrode generates bipolarity by electrostatic induction. Compared with the unipolar electrode electrolytic cell, the electrode connection of this kind of electrolytic cell is simpler, the operation is safe, and the power consumption is significantly reduced. The anode is connected with the anode of the rectifier, and the cathode is connected with the cathode of the rectifier. After being energized, under the action of an external electric field, the anode loses electrons for oxidation reaction, and the cathode gains electrons for reduction reaction. The wastewater flows through the electrolytic cell, and as an electrolyte, oxidation and reduction reactions occur at the anode and cathode, respectively, and harmful substances are removed. This oxidation or reduction reaction directly on the electrode is called the primary reaction.
In our country, direct electrolytic oxidation is mainly used, and indirect oxidation and indirect reduction can also be used for electrolytic treatment of wastewater, that is, the use of electrode oxidation and reduction products to chemically react with harmful substances in wastewater to generate water-insoluble precipitates. Separation to remove harmful substances. It has a good removal effect on COD, ammonia nitrogen and chromaticity in degraded water.
2. Types of electrolytic treatment of industrial wastewater:
Electrolysis is mainly used to treat chromium-containing wastewater and cyanide-containing wastewater. In addition, it is also used to remove heavy metal ions, oil and suspended solids in wastewater; it can also condense and adsorb dye molecules in colloidal or dissolved state in wastewater, and redox can destroy chromophores and achieve decolorization. The use of electrolysis to treat wastewater containing phenol, cadmium, sulfur, organic phosphorus and other wastewater and food industry wastewater is also in progress.
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