Methods and apparatus for biological treatment of waste waters

Details for Australian Patent Application No. 2002307836 (hide)

Owner V.A.I. Ltd.

Inventors Pollock, David

Agent Pizzeys

Pub. Number AU-B-2002307836

PCT Number PCT/IB02/01849

PCT Pub. Number WO2002/072485

Priority 60/271,201 23.02.01 US

Filing date 25 February 2002

Wipo publication date 24 September 2002

Acceptance publication date 8 November 2007

International Classifications

C02F 3/06 (2006.01) Biological treatment of water, waste water, or sewage - using submerged filters

B01D 19/00 (2006.01) Degasification of liquids

B01D 21/01 (2006.01) Separation of suspended solid particles from liquids by sedimentation - using flocculating agents

C02F 1/20 (2006.01) Treatment of water, waste water, or sewage - by degassing, i.e. liberation of dissolved gases

C02F 1/32 (2006.01) Treatment of water, waste water, or sewage - with ultra-violet light

C02F 3/00 (2006.01) Biological treatment of water, waste water, or sewage

C02F 3/12 (2006.01) Biological treatment of water, waste water, or sewage - Activated sludge processes

C02F 3/22 (2006.01) Biological treatment of water, waste water, or sewage - using circulation pipes

C02F 3/30 (2006.01) Biological treatment of water, waste water, or sewage - Aerobic and anaerobic processes

C02F 3/34 (2006.01) Biological treatment of water, waste water, or sewage - characterised by the micro-organisms used

C02F 11/14 (2006.01) Treatment of sludge - with addition of chemical agents

C02F 11/18 (2006.01) Treatment of sludge - by thermal conditioning

C02F 1/24 (2006.01) Treatment of water, waste water, or sewage - by flotation

Event Publications

19 December 2002 Complete Application Filed

  Priority application(s): 60/271,201 23.02.01 US

20 March 2003 Application Open to Public Inspection

  Published as AU-B-2002307836

8 November 2007 Application Accepted

  Published as AU-B-2002307836

20 March 2008 Standard Patent Sealed

23 September 2010 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This patent ceased under section 143(a), or Expired. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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