As one of the advanced electrochemical catalytic oxidation technologies, the electrocatalytic oxidation process for treating sewage has incomparable advantages in treating sewage. The advantages of #electrocatalytic oxidation equipment# are as follows:
1. Strong oxidation ability. Electrocatalytic oxidation equipment can oxidize organic matter that is difficult to degrade through direct oxidation and indirect oxidation synergistically;
2. Good sewage treatment effect. While electrocatalytic oxidation equipment can significantly remove COD, it can also effectively remove ammonia nitrogen, while improving the biodegradability of wastewater, greatly reducing the burden of subsequent treatment;
3. For chemical wastewater COD and ammonia nitrogen, it is difficult to meet the standards. Electrocatalytic oxidation equipment can be used for deep treatment to remove COD and ammonia nitrogen at the same time, ensuring that the system is stable and meets the standards;
4. Electrocatalytic oxidation equipment occupies a small area, has a short wastewater residence time, a fast treatment process, and mild conditions;
5. Good reliability. The only parameters that need to be controlled in the electrolysis process are current and voltage, which is easy to achieve automatic control;
6. No external agents are required, and no secondary pollution is generated. The electrocatalytic oxidation equipment process is a typical "environmentally friendly" advanced oxidation technology.
BDD electrode is a new type of electrode. It uses boron-doped diamond BDD film as electrode material. It has excellent electrochemical properties such as wide electrochemical potential window, low background current, good physical and chemical stability and low adsorption characteristics.
Organic pollutants are directly oxidized on the anode surface or indirectly oxidized by strong oxidizing active substances generated by electrocatalysis. The electrocatalytic process only consumes electrons provided by the external circuit and is carried out at normal temperature and pressure. It has the advantages of no secondary pollution, easy automation, simple and convenient, and good combination with other technologies.
Technical advantages:
The reagent is a clean reactant - electrons
Operate at room temperature and pressure, easy to manage
The treatment device occupies a small area
The water quality of the effluent can be ensured to be stable by adjusting the voltage and current
Use low-voltage DC power supply for degradation, without the need to consume a large amount of chemical agents
Under the same conditions, the efficiency and energy consumption of BDD electrode in degrading organic matter are significantly better than other electrodes
Typical applications
BDD electrode can effectively degrade pollutants in various types of organic wastewater, such as organic wastewater in the fields of pharmaceutical/pesticide chemicals, petrochemicals, coking, smelting, printing and dyeing, papermaking, leather making, explosives, wine making, and landfill leachate.
(1) Phenols and their derivatives, such as phenol, mainly come from petrochemical enterprises;
(2) Pharmaceutical intermediates, such as 17β-estradiol, mainly come from pharmaceutical chemical enterprises;
(3) Dyes and pigments, such as methyl orange, mainly come from printing and dyeing factories;
(4) Herbicides and insecticides, such as chlorsulfuron, mainly come from pesticide manufacturers;
(5) Surfactants, such as car wash wastewater.
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