METHOD FOR TREATMENT OF SLUDGE FROM WATERWORKS AND WASTEWATER TREAMENT PLANTS

Details for Australian Patent Application No. 2003232873 (hide)

Owner ULMERT, Hans, David

Inventors ULMERT, Hans, David

Pub. Number AU-A-2003232873

PCT Number PCT/SE03/00874

PCT Pub. Number WO2003/099728

Priority 0201594-9 28.05.02 SE; 0203486-6 26.11.02 SE

Filing date 27 May 2003

Wipo publication date 12 December 2003

International Classifications

C02F 001/52 Treatment of water, waste water, or sewage - by flocculation or precipitation of suspended impurities

B01D 061/00 Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration

C02F 011/04 Treatment of sludge - Anaerobic treatment

C02F 011/12 Treatment of sludge - by de-watering, drying, or thickening

C02F 011/18 Treatment of sludge - by thermal conditioning

Event Publications

28 August 2003 Complete Application Filed

  Priority application(s): 0201594-9 28.05.02 SE; 0203486-6 26.11.02 SE

5 February 2004 Application Open to Public Inspection

  Published as AU-A-2003232873

17 February 2005 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(f)/See Reg. 8.3(3). Examination has not yet been requested or directed for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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