BE859028A
(fr )
1978-03-28
Procede de decontamination de l'eau
YU146079A
(en )
1982-08-31
Process for purifying waste water
YU40294B
(en )
1985-12-31
Device for the purification of waste waters by flotation by means of applying dissolved ir
FR2462396B1
(fr )
1987-04-10
Procede de traitement de boues ou eaux residuaires
FR2439813B1
(fr )
1985-07-05
Procede de deparaffinag
AT379788B
(de )
1986-02-25
Vorrichtung zum nachklaeren von abwasser
DE2963282D1
(en )
1982-08-26
Apparatus for biological purification of waste water
YU39817B
(en )
1985-04-30
Process for the two-step purification of waste water by means of active slime
PT69825A
(fr )
1979-07-01
Procede de flottation des minerais
DE2963828D1
(en )
1982-11-11
Flocculation method for water purification
BE861944A
(fr )
1978-06-16
Procede d'epuration d'eaux residuaires
FR2418099B1
(fr )
1985-10-04
Procede de sculpture stereophotographique
DE3060114D1
(en )
1982-02-11
Process for purifying waste water
BE878235A
(fr )
1979-12-03
Procede de clivage de dihydroxydiphenylalcanes
IT1059012B
(it )
1982-05-31
Metodo per purivicare acque di rifiuto
JPS54113961A
(en )
1979-09-05
Facilities for disposing waste water by activated sludge method
BE846420A
(fr )
1977-01-17
Procede de purification d'eaux souterraines
IT1110765B
(it )
1986-01-06
Procedimento per purificare acqua di scarico contenente fosforo a mezzo di microorganismi
AT379121B
(de )
1985-11-25
Verfahren zum biologischen reinigen von abwasser
RO75392A2
(fr )
1980-11-30
Procede de coloration des eaux residuaires par flottation
BE837922A
(fr )
1976-07-27
Procede de decoloration d'eaux residuaires
FR2425478B1
(fr )
1987-04-17
Procede de reduction de matieres cupriferes
JPS5473468A
(en )
1979-06-12
Biological purifying method of waste water
GB1538101A
(en )
1979-01-10
Process for purifying waste water by flocculation and flotation
FR2518078B1
(fr )
1986-08-29
Procede de denitrification des eaux