AR245081A1
(en )
1993-12-30
Method to detoxify sewage sludge
EP0198334A3
(en )
1988-06-15
Water clarifier and sewage treatment device
EP0260695A3
(en )
1989-06-14
Fixing carrier for activated sludge in sewage or waste water treatment
GB2236749B
(en )
1993-04-28
Apparatus for processing metal-charged waste sludges
YU168187A
(en )
1989-10-31
Device for purifying waste waters from nitrate or/and nitrite
AU587099B2
(en )
1989-08-03
Device for treating used emulsions and industrial waste waters
YU130887A
(en )
1989-10-31
Device for purifying waste industrial waters and sewage waters
EP0597290A3
(en )
1995-01-18
Process and device for purification of waste water.
CS588687A1
(en )
1989-08-14
Equipment for town sewage and industrial waste waters treatment
GR870485B
(en )
1987-04-30
Process for sewage and sludge treatment
YU212786A
(en )
1988-10-31
Flotation device for waste waters purifying
GB8716573D0
(en )
1987-08-19
Biological purification of waste waters
YU111485A
(en )
1988-04-30
Device for neutralizing and purifying waste waters arising at casks washing
CS485888A1
(en )
1989-09-12
Biotechnological reactor for waste waters purification
HRP930306B1
(en )
1997-06-30
Apparatus for purifying waste and faecal waters
CS361488A1
(en )
1989-09-12
Method of waste waters purification
PL262937A3
(en )
1988-09-01
Device for biological waste purification
HU207497B
(en )
1993-04-28
Process and apparatus for biological purifying waste waters
PL255336A1
(en )
1987-04-06
Apparatus for biological denitrification and dephosphatation of waste waters
YU37788A
(en )
1990-02-28
Filter for purifying industrial and other waters
HU9301069D0
(en )
1993-08-30
Method and device for purification of waste waters
HU209506B
(en )
1994-06-28
Method and apparatus for purifying acidous industrial waste water
YU109189A
(en )
1991-02-28
Process for eliminating toxic metals at drinking and waste waters purifying
HUT66241A
(en )
1994-10-28
Biological waste water purifying and denitrating unit operating with sludge setting
PL269849A1
(en )
1989-07-10
Apparatus for bilogically denitrifying and dephosphating waste waters