Air Flotation Sedimentation Sewage Treatment Equipment

Product Description

Air flotation equipment can be divided into the following three points:
It refers to the separation of suspended solids in the water through tiny bubbles. It is suitable for situations where activated sludge flocs are not easy to precipitate or are prone to swelling. However, the production of fine bubbles requires energy, and the economic cost is high.
(1) Sedimentation tank refers to the precipitation of impurities in the water by gravity separation, separating those particles whose particle density is greater than the sedimentation of water, and the separation of solid-liquid generally does not require energy, but generally the sedimentation tank occupies a larger area.
(2) (2) When the proportion of suspended solids in the water is large, the sinking speed is fast, or the sinking environment is ideal (the water body is basically static without agitation), you can choose a sedimentation tank, but you must design the mud and scraping to ensure that there are no dead ends ; When the proportion of suspended solids is light and the site cannot provide enough residence time, it is recommended to use air flotation technology.
(3) If both have flocculation and dosing process, the power consumption of the sedimentation tank is relatively small, but the cost of dosing is relatively high. The corresponding air flotation tank has relatively high power consumption due to the return water pump, etc., and if the gas dissolving effect is good, add The cost of medicine is also slightly lower than that of precipitation. The specific process selection should be judged according to the owner's requirements and the actual situation on the site.