What are the differences when operating a shallow air flotation machine in winter?

Compared with other seasons, the operation of air flotation is somewhat different in winter. Winter temperatures are low, especially in the north and high altitude areas. For this reason, the following points should be paid attention to during the air flotation operation:
In order to avoid the influence of a large amount of undissolved air in the central area on fluctuations, the water level must not flood the fill layer and should not be lower than 0.6m. When the water temperature in the shallow air flotation machine is low, and due to the low water temperature, the water viscosity increases and the floating performance of the aerated floc decreases. This problem can be compensated by increasing the dosage to achieve the best water quality; according to the flocculation conditions of the reaction tank , the scum condition in the separation zone of the air flotation tank and the quality of the effluent to adjust the dosage of the entire coagulant.
In order to establish a scraping system that is consistent with the actual situation, the scraper should be run regularly to clean out the scum. To understand how large an area an air flotation machine can treat, you need to understand its purification capabilities in use.
Shallow air flotation machines are mostly used to treat water with high turbidity, high color, organic matter, low oil, low surfactants and rich algae. Compared with other air flotation methods, the hydraulic load is large and the pool body is compact.
1. Observe the status of wastewater. When winter freezes, it doesn't matter if the machine can run or not if the ice is thin. If there is ice thicker than 10 mm, it should be melted or crushed before operating the equipment. Thick ice can wear down air flotation components, causing mechanical parts to break or fall off, and is very costly to use.
2. In winter, the moving parts of the air float become stiff, the lubrication effect of lubricating oil and hydraulic oil decreases, the movement of mechanical parts is blocked, and friction increases. The operating efficiency of the shallow air flotation machine will decrease and the wear of components will increase. In winter, low-viscosity lubricating oil or hydraulic oil is generally used to minimize clogging problems.
3. The microbial content in the water is low in winter, and the bubbles are relatively reduced after the air flotation operation. It is necessary to increase the air flotation operation time to make up for the shortcomings.