1. Can be buried underground

2. Fully automatic control, no personnel management required

3. No sludge reflux

4. Easy to operate and maintain

5. Low noise, no odor

6. Long service life

The design of WSZ-A equipment is mainly aimed at the treatment of domestic sewage and similar industrial organic sewage. The main treatment method is to use a relatively mature biochemical treatment technology - contact oxidation method. The water quality parameters are designed according to the general domestic water quality, with inlet BOD of 20Omg/l and outlet BOD of 20mg/l. It consists of six parts: (1) primary sedimentation tank; (2) Contact oxidation tank; (3) Secondary sedimentation tank; (4) Disinfection pool and disinfection device; (5) Sludge tank; (6) Fan room, fan.

The following are discussed separately:

Vertical flow sedimentation tank, the upward flow velocity of sewage in the sedimentation tank is 0.6-0.7 mm/s, and the settled sludge is lifted to the sludge tank by air. (Note: WSZ-A O.5-5m/h does not have a primary sedimentation tank)

Roots blower, capable of automatic alternating operation. The operating life of a single wind turbine is about 30000 hours.