How to ensure the effective treatment of sewage by dissolved air flotation?

Dissolved air flotation is a professional equipment used to treat sewage, and it is also a widely used equipment in the sewage treatment industry. Today, let me share with you how to ensure the effective treatment of sewage by dissolved air flotation:

To ensure the effective treatment of sewage by dissolved air flotation, the following work must be done:

1. During inspection, observe the water level in the dissolved air tank through the observation hole. It is necessary to ensure that the water level does not submerge the packing layer and affect the effect of dissolved air; it is not lower than 0.6m to prevent a large amount of undissolved air in the center of the water.
2. Pay attention to observe the condition of the pool surface during inspection. If it is found that the scum surface in the contact area is uneven and the local water flow is violently turbulent, it may be that some releasers are blocked or fall off, and they need to be repaired and replaced in time. If it is found that the scum surface in the separation area is uneven and large bubbles often bulge out on the pool surface, this indicates that the bubbles and impurity flocs are not well adhered, and it is necessary to adjust the dosage or change the type of coagulant.
3. When the coagulation effect is affected by low water temperature in winter, in addition to measures to increase the dosage, the method of increasing the amount of backflow water or increasing the dissolved air pressure can also be used to increase the number of microbubbles and their adhesion to flocs. To make up for the reduction of the floating performance of the air-bearing flocs due to the increase of the viscosity of the water flow, and to ensure the quality of the effluent water.
4. In order not to affect the water quality of the effluent, the water level in the pool must be raised when scraping slag. Therefore, attention should be paid to accumulating operating experience, summarizing the thickness and water content of the actual scum accumulation, regularly operating the scum scraper to remove scum, and establishing a pool that meets the actual situation. Scraping system.
5. According to the changes in the flocculation of the reaction tank, the scum in the separation area of the air flotation tank and the water quality of the effluent, the dosage of the coagulant should be adjusted in time, and the operation of the dosing pipe should be checked frequently to prevent blockage ( especially in winter).

The above points are the ways to ensure the effective treatment of sewage by dissolved air flotation. Our factory is located in Dezhou, Shandong. You are welcome to visit our factory at any time.