Sewage treatment is one of the important measures to protect the environment and maintain public health. But sometimes during the aerobic pool treatment, you may encounter the problem of excessive foam. Here are some suggestions for dealing with a lot of foam in a sewage aerobic tank.
1.Change the way the water is intake: Excessive foam can be caused by the improper way the water is inlet in. You can try to adjust the inlet water to reduce the impact of the inlet water and improve the fluidity of the sewage to reduce the generation of foam.
2.Adjust the mixing equipment: The mixing equipment in the aerobic tank has a certain impact on the production of foam. Proper adjustment of the operating parameters of the mixing equipment, such as speed, angle and position, can reduce the accumulation of gases in the effluent, thereby reducing the generation of foam.
3.Appropriate reduction of influent turbidity: The higher the concentration of suspended solids and organic matter in the effluent, the greater the potential for foam formation. By using pretreatment measures, such as screens, sedimentation tanks, etc., large particulate matter and suspended solids can be effectively removed, and the turbidity of the inlet water can be reduced, thereby reducing the formation of foam.
4.Add defoamer: A defoamer is a substance that can break the surface tension of foam. Adding the right amount of defoamer as appropriate can effectively control and eliminate foam in the sewage aerobic tank. However, it is important to pay attention to the amount of defoamer used, as excessive use may adversely affect the treatment effect of the aerobic pool.
5.Increase aeration at the bottom of the tank: Appropriately increase the aeration device at the bottom of the aerobic pond to improve the uniform distribution of oxygen and increase the oxidation rate of the sediment. This reduces the accumulation of organic matter and thus reduces the production of foam.
6.Regular cleaning of equipment: Regular cleaning of sewage treatment equipment, especially agitation and aeration devices, can keep the equipment in good working condition, reduce the adhesion and aggregation of organic matter, and thus reduce the generation of foam.