The application of sewage mixer in sewage treatment plants is very extensive, but specifically, it is the most common and critical application in the following links:

1. Pre-processing

In the pretreatment stage of the sewage treatment plant, the sewage mixer is mainly used to mix and stir the original sewage, so that the suspended solids and pollutants in the sewage are distributed more evenly, providing favorable conditions for the subsequent treatment process. In addition, the mixer can prevent sludge deposition in the pretreatment tank and keep the flow state in the tank stable.

2. Biological processing link

Biological treatment is one of the core links of the sewage treatment plant, and the application of the sewage mixer is particularly extensive at this stage. In biological treatment processes such as activated sludge process, A2/O process and SBR process, the mixer promotes full contact between microorganisms and organic pollutants by evenly mixing sewage and activated sludge, thereby improving biodegradation efficiency. At the same time, the mixer can also control the suspension state of the sludge, avoid sludge deposition, and ensure the continuity and stability of the biological treatment process.

3. Deep processing

In the advanced treatment stage, the sewage mixer is mainly used for coagulation, flocculation and other processes. Through the stirring effect of the mixer, the coagulant and flocculant fully contact and react with the small suspended matter and colloids in the sewage to form a large floc, which is convenient for subsequent precipitation or filtration treatment. In addition, in advanced oxidation and other advanced treatment processes, mixers can also play an important role in promoting the reaction of oxidants with pollutants in sewage.

4. Sludge treatment

Sludge treatment is an indispensable part of sewage treatment plants. In the sludge concentration, dehydration, stabilization and other treatment process, the mixer also plays an important role. For example, in the sludge thickening tank, the mixer prevents sludge deposition and improves the thickening efficiency by stirring; In the process of sludge dewatering, the mixer is helpful to fully mix the sludge and dehydrating agent to improve the dewatering effect.

In summary, the sewage mixer has been widely used in many links such as pretreatment, biological treatment, advanced treatment and sludge treatment of sewage treatment plants. Its main function is to promote the uniform distribution and adequate reaction of each component in sewage and sludge through stirring and mixing, so as to improve the efficiency and quality of sewage treatment.

Nanjing LanJiang Water Treatment Equipment Co.,Ltd manufactures equipment for wastewater treatment. We were established in 2001. Since then, we designed and produced submersible mixers, top entry mixers, aerators and other wastewater treatment equipment.