Fluidized bed wastewater treatment

Details Fluidized bed wastewater treatment Fluidized bed wastewater treatment

2004-02-13

2009-11-24

Hruskoci, Peter A (Department: 1797)

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

C210S712000, C210S715000, C210S718000, C210S724000, C210S903000, C210S906000

Reexamination Certificate

active

07622047

ABSTRACT:
A fluidized bed reactor (14) for removing phosphorus and nitrogen from wastewater has a column comprising a number of sections. (15A,15B,15C,15D) The diameter of the column changes stepwise between the sections. A flow velocity in excess of 100 cm/min is maintained in a lowermost one of the sections and lower flow velocities are maintained in subsequent sections. A struvite supersaturation ratio is controlled in part by recycling wastewater from an outlet of the column. Struvite pellets are removed periodically from the bottom of the column.

REFERENCES:
patent: 4009099 (1977-02-01), Jeris
patent: 4389317 (1983-06-01), Trentelman et al.
patent: 6994782 (2006-02-01), Bowers et al.
patent: 7005072 (2006-02-01), Bowers et al.
patent: 7182872 (2007-02-01), Barak et al.
patent: 3819965 (1989-12-01), None
patent: 60179190 (1985-09-01), None
patent: 11267665 (1999-10-01), None
patent: 2000334474 (2000-12-01), None
S. Regy et al., Phosphate recovery by struvite precipitation in a stirred reactor, LAGEP (Mar. To Dec. 2001).
Piekema et al., Phosphate Recovery by the Crystallisation Process: Experience and Developments, paper presented at 2nd International conference on Phosphate Recovery for Recycling from Sewage and Animal Wastes, Noordwijkerhout, The Netherlands, Mar. 12-13, 2001.
Ueno et al., Three years experience of operating and selling recovered struvite from full scale plant, (2001) Environmental Technology, v. 22, pp. 1373-1381.
E.V. Munch et al., Making a business from struvite crystallisation for wastewater treatment: turning waste into gold, paper presented at 2nd International conference on Phosphate Recovery for Recycling from Sewage and Animal Wastes, Noordwijkerhout, The Netherlands, Mar. 12-13, 2001.
S.A. Parsons et al., Assessing the potential for struvite recovery at sewage treatment works, (2001) Environmental Technology v. 22, p. 1279.

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