Contact oxidation tank, sedimentation tank, disinfection tank, sludge pool interconnecting pipeline is clogged (clogging is generally detached biofilm and damage to the elasticity of the three-dimensional filler).
2, contact oxidation pool aeration is not uniform
Check whether the aeration fan outlet valve is in the normal position, whether the aeration head is damaged.
3, biofilm hanging effect is not obvious
Check whether the contact oxidation pool aeration is uniform, the second sedimentation tank sludge is pumped to the pool, if the above situation is normal, then add the appropriate amount of nutrients to the pool (sugar, urea, etc.).
4, sewage treatment equipment water quality does not meet the standard
The water inlet is too large; contact oxidation pool aeration is not uniform or a long time out of service (at this time must be re-cultivation of biofilm); sedimentation tank sludge is too much (must be completely remove sludge), disinfection device out of service and long-term disinfection of the effluent water is not disinfected.
5, sewage treatment equipment, automatic control failure
Check whether the automatic control cabinet power supply is normal, check whether the supporting lifting pumps and aeration fan is damaged (at this time can be formed by the current is too large, disconnecting switch automatically disconnect).