Back to results
US 2017/0291816 A1Published application
Apparatus and method for the extraction of phosphorus from wastewater
AssigneeEliquo Stulz GmbH
InventorUlrich KNÖRLE
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeEliquo Stulz GmbH
InventorUlrich KNÖRLE
Estimating the term…
An apparatus for the extraction of phosphorus from wastewater that includes a precipitation module and a retention module. The precipitation module includes a crystallization vessel, one or more inlets disposed in a lower region of the precipitation module and at least one outlet disposed in an upper region of the precipitation module. The retention module includes a sedimentation vessel, at least one inlet disposed in an upper region of the retention module and at least one outlet disposed in a lower region of the retention module. At least one outlet of the precipitation module is connected to at least one inlet of the retention module and at least one outlet of the retention module is connected to at least one inlet of the precipitation module. The volume VS of the sedimentation vessel is greater than/equal to 0.6 times the volume VC of the crystallization vessel (VS≧0.6·VC).
Apparatus for the extraction of phosphorus from wastewater comprising a precipitation module and a retention module, wherein the precipitation module comprises a crystallization vessel, one or more inlets disposed in a lower region of the precipitation Module and at least one outlet disposed in an upper region of the precipitation module, the retention module comprises a sedimentation vessel, at least one inlet disposed in an upper region of the retention module and at least one outlet disposed in a lower region of the retention module, at least one outlet of the precipitation module is connected to at least one inlet of the retention module and at least one outlet of the retention module is connected to ill at least one inlet of the precipitation module, wherein the volume VS of the sedimentation vessel is greater than/equal to 0.6 times the volume VC of the crystallization vessel (VS≧0.6·VC).
Method for the extraction of phosphorus from wastewater comprising the steps of precipitating phosphorus-containing, precipitate in a crystallization vessel in an upward wastewater flow, sedimenting precipitate in a sedimentation vessel in a downward wastewater flow, and recycling wastewater and precipitate from the sedimentation vessel into the crystallization vessel, wherein the hydraulic residence time tS of the wastewater in the sedimentation vessel is greater than/equal to 0.6 times the hydraulic residence time tC of the wastewater in the crystallization vessel (tS≧0.6·tC).
Dependencies are inferred from the claim text.