ZA842133B
(en )
1985-11-27
Biological wastewater treating system
NZ220674A
(en )
1989-10-27
Intra-channel clarifier for sewage treatment
AU3299189A
(en )
1989-09-22
Devices for treating waste water
GB2099807B
(en )
1984-08-30
Waste water treatment apparatus for denitrification
GB2194526B
(en )
1989-11-01
Apparatus for purifying waste water or a gas.
AU548300B2
(en )
1985-12-05
Treating industrial waste waters by activated sludge
YU168187A
(en )
1989-10-31
Device for purifying waste waters from nitrate or/and nitrite
YU225486A
(en )
1989-10-31
Device for purifying waste waters from arsenite ions
YU184387A
(en )
1989-10-31
Device for purifying waste waters from copper
AU1962883A
(en )
1985-04-04
Removing ammonia from industrial waste waters
GB2198432B
(en )
1990-07-18
Apparatus for purifying drinking water
YU212786A
(en )
1988-10-31
Flotation device for waste waters purifying
BG42066A1
(en )
1987-10-15
Method for purifying waste waters from organic scbstances
YU223986A
(en )
1989-08-31
Device for excreting especially organo-metallic compounds from waste waters
PT75232A
(en )
1982-08-01
Biological wastewater treating system
BG35232A1
(en )
1984-03-15
Method for purifying phenol containing waste waters
YU45430B
(en )
1992-05-28
Device for purifying waste industrial and sewage waters
GB2186873B
(en )
1990-02-14
Waste reclamation system
BG34815A1
(en )
1983-12-15
Method for purifying waste waters from chlororganic compounds
YU102186A
(en )
1988-08-31
Device for purifying waste gasses
YU44698B
(en )
1990-12-31
Process for purifying waste waters at phenol-formaldehide pitches
GB8821772D0
(en )
1988-10-19
Means for purifying waste
YU111485A
(en )
1988-04-30
Device for neutralizing and purifying waste waters arising at casks washing
PL141053B2
(en )
1987-06-30
Apparatus for biologically treating waste waters
YU184589A
(en )
1991-04-30
Filter device for purifying water