Several methods to keep the dissolved air flotation machine in good operating condition
Dissolved air flotation is a common sewage treatment equipment, which has a good impurity removal effect for sewage with floating objects in the water body. Therefore, it is recognized by manufacturers in all walks of life that need sewage treatment. But after all, the air flotation machine is also a mechanical device, and it is inevitable that there will be problems of this kind and that, so how to keep the air flotation machine in a good operating state, let me introduce the method to you.
- The prerequisite for good air flotation effect is the degree of reaction between raw water and coagulant. Good coagulation reaction will improve the subsequent air flotation effect to a certain extent.
- In addition to the coagulation reaction, the air flotation method also has a flocculation reaction. The same principle as coagulation, the better the reaction, the better the air flotation effect. Appropriate stirring speed and mixing time can further enhance the flocculation reaction. Therefore, the mixing speed and time should also be mastered.
- As we all know, the principle of the air flotation machine is to use the releaser to release the dissolved air and water to generate fine bubbles, and then let the bubbles adhere to the suspended matter to form a mixture of dry water with low density, and then float to the water surface to achieve the effect of solid-liquid separation. It can be seen that the air bubbles are very important for the dry air flotation machine. The appropriate number and size of the air bubbles directly affect the water purification effect.
- For the pressurized dissolved air flotation machine, the dissolved air pump needs to consume a lot of electricity when making dissolved air water. Selecting a reasonable pressure can not only effectively reduce power consumption, thereby reducing operating costs, and further improve water quality. .
Several methods to keep the dissolved air flotation machine in good operating condition
- In addition to selecting the appropriate pressure, there is another quantity that needs to be reasonably planned, that is, the amount of air injection, which generally only needs to be slightly larger than the solubility of air in water. This can make the air supersaturated in the water more suitable.
- The flow state of the raw water should be appropriate. The flow state of the raw water has a relatively large influence on the floating speed of the air-entrained floating objects. It is best to keep the source flow in a turbulent state, so that the floating objects will float.
- The last point is to use the test method to measure the reflux ratio of raw water under various conditions to ensure a reasonable flow rate.