IT1120591B
(en )
1986-03-26
WASTEWATER TREATMENT PROCEDURE
ES489861A0
(en )
1981-03-16
DRINKING WATER TREATMENT PROCEDURE
IT7924261A0
(en )
1979-07-11
AUXILIARY FILTERING MEANS FOR TREATING SUSPENSIONS, ESPECIALLY INDUSTRIAL COMMUNITY SLUDGES AND OTHER SLUDGES FOR THE SUBSEQUENT ELIMINATION OF WATER.
NO783445L
(en )
1979-05-02
WASTEWATER PROCESS.
SE8102874L
(en )
1981-05-07
Water desalination process
ES269846Y
(en )
1984-01-16
PROVISION OF TREATMENT OF PESTANES.
IT7829847A0
(en )
1978-11-16
METHOD FOR THE TREATMENT OF RED SLUDGE.
DK159200C
(en )
1991-02-25
METHOD OF TREATING WASTEWATER SLUDGE
NL190699C
(en )
1994-07-01
Waste water treatment method.
IT7922996A0
(en )
1979-05-25
TREATMENT OF WATER SYSTEMS.
AR219788A1
(en )
1980-09-15
SEWAGE TREATMENT PROCEDURE
NO803438L
(en )
1981-05-18
SEWAGE WASTEWATER TREATMENT.
DE2962861D1
(en )
1982-07-08
Process for the biological treatment of waste water
IT1198367B
(en )
1988-12-21
WASTEWATER TREATMENT PLANT
IT7829196A0
(en )
1978-10-27
WASTE WATER TREATMENT PROCESS.
PL207830A1
(en )
1979-05-07
METHOD OF TREATMENT OF HIGHLY DEGREED INDUSTRIAL SEWAGE, ESPECIALLY SUGAR WATER
IT7924414A0
(en )
1979-07-17
TREATMENT PROCEDURE FOR BIODEGRADABLE EFFLUENTS.
IT7926697A0
(en )
1979-10-22
CATIONICS. DETOXIFICATION OF FLOCCULANTS
BR7906838A
(en )
1980-06-24
WATER PURIFICATION PROCESS
NO152970C
(en )
1985-12-27
DEVICE FOR RAW WATER TREATMENT, FOR EXAMPLE SURFACE WATER OR WASTE WATER.
IT7920279A0
(en )
1979-02-16
PLANT FOR THE TREATMENT OF USED WATER THROUGH THE BIOLOGICAL PROCESS OF ACTIVATED SLUDGE.
DE3142258A1
(en )
1982-06-16
WASTEWATER TREATMENT PROCESS
IT7820828A0
(en )
1978-03-03
PROCEDURE FOR THE TREATMENT OF EFFLUENTS.
PL110701B2
(en )
1980-07-31
Method of biological sewage treatment
SE7610325L
(en )
1978-03-18
PROCEDURE FOR CARRYING OUT BIOLOGICAL WASTE WATER TREATMENT