Integrated sewage treatment equipment is a device that integrates primary sedimentation tank, I and II contact oxidation tank, secondary sedimentation tank and sludge tank, and carries out blast aeration in I and II contact oxidation tank, which effectively combines contact oxidation method and activated sludge method, and at the same time, each has its own advantages and overcomes its shortcomings.

Integrated sewage treatment equipment is widely used in sewage treatment in industry, agriculture and life. How can we choose a suitable integrated sewage treatment equipment?

1. From the functional point of view, firstly, the purpose of selecting integrated sewage treatment equipment is clearly defined. Purifying water is to remove sediment, impurities, bacteria, heavy metals, residual chlorine, organic matter and some minerals from water. In order to choose the appropriate function, how to reasonably match the composition of the filter media is the key.

2. From the perspective of material selection, this material is the tank material of integrated sewage treatment equipment. At present, there are stainless steel, glass fiber reinforced plastic, cast iron, aluminum, food-grade resin or PVC on the market. The first three are materials with good compression resistance and can be used as pre-filters (central machines). The latter two materials with poor compression resistance can only be used at the back end of the pre-filter (central machine) as a direct drinking machine. Among these materials, stainless steel has the best compression and corrosion resistance. The price is also relatively high. Food polar resin or PVC has poor pressure resistance and low price.

The outstanding advantages of integrated sewage treatment equipment are:

1, the integrated sewage treatment equipment has the ability to remove nitrogen and phosphorus, and the ability to treat industrial wastewater, domestic sewage and urban sewage can be achieved by adjusting the equipment structure;

2. The integrated sewage treatment equipment has strong impact load resistance. The average residence time of contact oxidation method is more than 6 hours;

3, the integrated sewage treatment equipment is easy to complete automatic control, and the management and operation are simple;

4. In the contact oxidation tank of the integrated sewage treatment equipment, an aerator is used for blast aeration, so that the fiber bundles float continuously, the aeration is uniform, and the microorganisms grow mature, which has the characteristics of the activated sludge method;

5. The fillers in the contact oxidation tank of integrated sewage treatment equipment are mostly combined soft fillers, which have the characteristics of light weight, high strength, stable physical and chemical properties, large specific surface area, strong adhesion of biofilm and high contact efficiency between sewage and biofilm.