Back to results
US 11,186,504 B2Granted
Waste water treatment plant
AssigneeWaterleau Group NV
InventorRon Gerards
Life of this patent
Estimating the term…
Abstract
The invention relates to a waste water treatment plant including at least a multi-step water treatment reactor arranged for receiving influent waste water, for carrying out at least a biological step and a sedimentation step and for providing effluent pure water, by means of an effluent weir. The wastewater treatment plant further includes means for increasing the sedimentation velocity, and means for hindering floating elements to get into the effluent weir.
Claims20
A waste water treatment plant comprising:
- at least a multi-step water treatment reactor being a cyclic operating activated sludge system arranged for receiving influent waste water and running a continuous cycle of purification, for carrying out at least alternatively a biological step under stirring and/or aeration and a sedimentation step and for providing effluent pure water, by means of an effluent weir,
- means for increasing the sedimentation velocity comprising cross-lamellas, and
- means for hindering floating elements to get into the effluent weir comprising:
- a cover arranged over the weir for providing a baffle hindering floating elements to get through during both the biological and the sedimentation steps, and
- during the biological step, the baffle is under gas pressure from gas pressure applied inside the weir to avoid flow of the effluent out of the compartment.
2 more elements
Dependencies are inferred from the claim text.