FR1220950A
(en )
1960-05-30
Method and apparatus for the demineralization of liquids such as sea water
CH390227A
(en )
1965-04-15
Process for the separation and purification of hydrogen
BE591972A
(en )
1960-10-17
Process and installation for the purification and sterilization of swimming pool water.
FR1228711A
(en )
1960-09-02
Process for the purification of water containing heavy metals
FR1282625A
(en )
1962-01-27
New basin for water purification
CH441139A
(en )
1967-07-31
Process and installation for the purification of impure liquids
FR1280758A
(en )
1962-01-08
Process and equipment for the clarification of liquids and particularly for water purification
BE600739A
(en )
1961-06-16
Process and equipment for the clarification of liquids and particularly for water purification
BE591604A
(en )
1960-12-07
Process for the purification of polymers
FR1287509A
(en )
1962-03-16
Method and device for biological purification of wastewater
FR1242377A
(en )
1960-09-30
Process and apparatus for the purification of water by coagulation and decantation
FR1344004A
(en )
1963-11-22
Method and device for the purification of waste water containing chromic acid
FR1299104A
(en )
1962-07-20
Biological purification process for wastewater
BE588506A
(en )
1960-07-01
Plant and method for the purification of liquids, in particular water
FR1342547A
(en )
1963-11-08
Process and installation for the biological purification of wastewater containing detergents
FR1302307A
(en )
1962-08-24
Process for the removal of sludge from sewage and the like
FR1410200A
(en )
1965-09-03
Process and installation for the separation of suspensions in water purification
FR1202208A
(en )
1960-01-08
Device and method for the biological purification of wastewater
BE611436R
(en )
1962-03-30
Process for the preparation of raw sludge present in wastewater treatment
FR1223678A
(en )
1960-06-20
Process for the purification and concentration of sulfuric acid from waste products
FR1412100A
(en )
1965-09-24
Process for the purification of waste water
FR1416559A
(en )
1965-11-05
Process and apparatus for the concentration and purification of hydrogen peroxide
FR1230837A
(en )
1960-09-20
Process for the purification of water containing organic impurities
FR1457772A
(en )
1966-01-24
Process for the treatment of sewage
FR1023356A
(en )
1953-03-18
Process for the clarification and purification of waste or residual water