Back to results
US 2013/0256222 A1Published application
Methods for enhancing a wastewater treatment process
AssigneeSiemens Industry, Inc.
InventorsSteven E. Woodard, Peter G. Marston, Ionel Wechsler
Life of this patent
Estimating the term…
Abstract
Methods for enhancing an activated sludge process including at least one biological reactor. A weighting agent impregnation subsystem is coupled to the biological reactor for mixing biological flocs and weighting agent to impregnate the weighting agent into the biological flocs to form weighted biological flocs. A weighting agent recovery subsystem is configured to recover the weighting agent from the weighted biological flocs and reintroducing the recovered weighting agent to the weighting agent impregnation subsystem.
Claims13
A method of treating wastewater comprising:
- introducing a wastewater into a biological reactor to provide a mixed liquor comprising biological flocs;
- introducing at least one of the mixed liquor and a settled sludge from the biological reactor to a weighting agent impregnation subsystem;
- contacting a weighting agent with the at least one of the mixed liquor and the settled sludge in the weighting agent impregnation subsystem to form weighted biological flocs;
- and
- introducing the weighted biological flocs from the weighting agent impregnation subsystem to the biological reactor.
2 more elements
Dependencies are inferred from the claim text.