Emulsion wastewater treatment device
Traditionally, the chemical method is used for demulsification, that is, dosing-air flotation-filtration process: due to the chemical reaction at room temperature and pressure, the reaction is difficult to be immediate and sufficient, plus the emulsifiers used in the emulsion are different (the emulsifiers are OP, CTAB, SDS), the difference of the used drugs is difficult to destabilize the oil droplets, so using chemical method to break the emulsion, there must be some limitations and unreliability. At the same time, due to the large amount of management and maintenance and high processing costs, when the COD in the emulsion is high or the oil content is high, demulsification becomes a major problem.According to the needs of users and in accordance with the mature technology of our factory's electrolytic method, a new type of emulsion processing machine has been developed. Due to its applicability, reliability, operability, stability, and economy, it will certainly provide users with a demulsification treatment. An ideal device.
The device uses an iron plate as the electrode material, and the material of the reaction tank is polypropylene. The electrolytic reaction is as follows:
The hydroxyl radicals and OH are extremely oxidizing during electrolysis. At the same time, the oxidant is added, which causes the organic matter to be cut and decomposed in the high-frequency DC electric field, which can effectively destroy the surfactant of the oil droplets, so that the organic matter can be rapidly oxidized and positive Electrocolloids Fe (OH) 2 and Fe (OH) 3 can also neutralize the negative charge on the surface of the oil droplets, reduce the potential, compress the electric double layer, promote the destabilization of the oil droplets, separate the oil and water, and collect and float the small oil droplets. ; At the same time, the diameter of hydrogen bubbles generated during electrolysis is 20μm, and the diameter of oxygen bubbles is 20-60μm, which is much smaller than the 80μm diameter of chemical air floatation method. Practice has proved that when the content of emulsifiable oil is more than 1000mg / L, the voltage value between the plates is appropriately reduced, the current value between the plates is increased, and the effect of demulsification is very ideal.
During electrolytic demulsification, the pH value should be adjusted. Under acidic conditions, limiting the appropriate concentration can make the COD removal rate> 98%.
Process: (This device consists of three parts: electric control box, electrolytic host and filter)
装置 The device has a compact structure, a small footprint, and can be assembled as a whole. It can also be set separately. Users can choose according to their needs.
⒉ Low operating cost, only 1 kWh of electricity is needed to treat tons of water. (When the content of emulsifiable concentrate is more than 1000mg / L)
⒊ Continuous operation, automatic operation, easy management and maintenance.
⒋The effect of demulsification is good, and the COD removal rate is> 98%, which guarantees stable compliance.
Processing size (length × width × height) mm
Power supply ~ 380V
850 × 550 × 750
600 × 450 × 1200
1050 × 670 × 870
610 × 470 × 1210
1350 × 810 × 910
810 × 570 × 1510
1650 × 970 × 950
810 × 570 × 1610
|Note: If the amount of treated water is large, it can be specially designed and produced. (Capacity 1T / h—50T / h)|