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US 9,957,178 B2Granted
BDP sewage denitrogenation treatment system and method for sewage denitrogenation treatment
AssigneeBDP Enviro Tech Limited
InventorJianguo Li
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Abstract
The present invention provides Biological Double efficiency Product (BDP) sewage denitrogenation treatment systems and methods.
Claims11
A Biological Double efficiency Process (BDP) sewage denitrogenation treatment system, comprising
- a water inlet zone which is provided with a water inlet;
- a first aerodynamic zone in communication with the water inlet zone;
- a circumfluent zone in communication with the first aerodynamic zone;
- a second aerodynamic zone in communication with the circumfluent zone;
- a sedimentation zone which is in communication with the second aerodynamic zone and provided with a water outlet;
- and
- a reflux buffering zone in communication with the sedimentation zone and the circumfluent zone;
- and
- on the wall of the circumfluent zone there is provided a sludge exchange pipe via which the circumfluent zone exchanges sludge with a tank.
6 more elements
A sewage denitrogenation treatment method, comprising the following steps:
- the sewage to be treated is introduced into a sewage denitrogenation treatment system via a water inlet zone;
- then sequentially treated through a first aerodynamic zone, a circumfluent zone, a second aerodynamic zone and a sedimentation zone, and the treated sewage is discharged via the sedimentation zone;
- the sludge in the sedimentation zone flows back to the circumfluent zone via a reflux buffering zone;
- the circumfluent zone exchanges sludge with a tank via a sludge exchange pipe.
1 more element
Dependencies are inferred from the claim text.