Coviello Allan James, Bernardin Frederick Eugene, Kalb Kathryn Reynolds: Closed loop waste treatment and water recycling toilet system and method of operation.. Thetford, May 30, 1979: EP0002115-A1 (51 worldwide citation)

A closed loop waste treatment and water recycling toilet system and method of operation in which waste is flushed from a toilet stage (21) into a treatment zone in which organic materials are removed biologically with purified water therefrom being recycled as flush liquid in the toilet stage (21). ...

Treatment of liquid. Boc International, November 17, 1976: GB1455567-A (12 worldwide citation)

1455567 Dispersing gases in liquids BOC INTERNATIONAL Ltd 3 Jan 1974 [8 Jan 1973 1 March 1973 26 June 1973] 1027/73 10082/73 and 30236/73 Heading B1C [Also in Division C1] An apparatus for treating liquid 18 with gas includes a compressor or pump 24 for pressurising a stream of the liquid, a first d ...


Fermentation apparatus and process. Jeffcoate P R, Others Sandford Fawcett Wilton, October 29, 1975: GB1411659-A (6 worldwide citation)

1411659 Fermentation of polluted water P R JEFFCOATE J HUTCHINSON R D SHEFFIELD J M ERDE and C A WALTER [trading as SANDFORD FAWCETT WILTON & BELL] 31 May 1974 [4 June 1973] 26623/73 Heading C1C Water is pumped by feeding into a lagoon a slurry containing dissolved and suspended organic waste matter ...

Poschmann F, Bergold W: Aqueous antifoaming emulsions. BASF, August 13, 1975: GB1402597-A (6 worldwide citation)

1402597 Aqueous antifoaming emulsions; clay dispersion BADISCHE ANILIN- & SODAFABRIK AG 16 Nov 1972 [17 Nov 1971] 52966/72 Headings C1A and C1C [Also in Divisions B1 C6 and D2] A coating composition of water content 50% comprises 100 parts coating clay, 0À3 part of a polyacrylate, 0À15 part sodium h ...