IT7950379A0
(en )
1979-09-27
PROCEDURE FOR THE TREATMENT OF WASTEWATER
IT1159654B
(en )
1987-03-04
PROCEDURE FOR THE BIOLOGICAL PURIFICATION OF WASTEWATER
IT7869907A0
(en )
1978-12-20
PROCEDURE FOR THE DEODORATION OF WASTEWATER CLARIFICATION SLUDGE
IT8149325A0
(en )
1981-09-18
PROCEDURE FOR THE TREATMENT OF WASTE MATERIALS
IT1036285B
(en )
1979-10-30
PROCEDURE FOR THE BIOLOGICAL PURIFICATION OF SEWER WATER
IT1101714B
(en )
1985-10-07
METHOD FOR THE TREATMENT OF RED SLUDGE
IT7849964A0
(en )
1978-06-21
PROCEDURE FOR THE BIOLOGICAL PURIFICATION OF WASTEWATER
IT1120237B
(en )
1986-03-19
DEVICE FOR THE MECHANICAL PURIFICATION OF WASTE WATER
IT1111478B
(en )
1986-01-13
PROCEDURE FOR THE BIOLOGICAL DENITRIFICATION OF THE AFFLUENTS OF ESPECIALLY INDUSTRIAL WATERS
IT1121040B
(en )
1986-03-26
WASTEWATER TREATMENT PROCEDURE
IT7847961A0
(en )
1978-02-07
PROCEDURE FOR THE TREATMENT OF SEWAGE SLUDGE
IT7820456A0
(en )
1978-02-21
DEVICE FOR THE BIOLOGICAL PURIFICATION OF WASTE WATER.
IT1188843B
(en )
1988-01-28
DEVICE FOR THE BIOLOGICAL PURIFICATION OF WASTE WATER
IT7829170A0
(en )
1978-10-27
DEVICE FOR THE BIOLOGICAL PURIFICATION OF WASTE WATER.
IT1010486B
(en )
1977-01-10
PROCEDURE FOR THE PURIFICATION OF WASTE WATER
IT7884610A0
(en )
1978-08-09
BIOLOGICAL PURIFICATION FOR THE TREATMENT OF CIVIL WASTEWATER
IT7862902V0
(en )
1978-08-09
BIOLOGICAL PURIFIER FOR THE TREATMENT OF CIVIL WASTE WATER
IT1121457B
(en )
1986-04-02
PROCEDURE FOR THE PURIFICATION OF LIQUID EFFLUENTS
IT1111845B
(en )
1986-01-13
PLANT FOR THE TREATMENT OF WATER USED THROUGH THE BIOLOGICAL PROCEDURE OF ACTIVATED SLUDGE
IT7822407U1
(en )
1980-01-24
BIOLOGICAL PURIFICATION PLANT FOR THE TREATMENT OF CIVIL AND INDUSTRIAL WASTEWATER.
IT7923828A0
(en )
1979-06-25
REACTOR FOR THE BIOLOGICAL PURIFICATION OF WASTE WATER.
IT1092711B
(en )
1985-07-12
PROCEDURE AND PLANT FOR THE PURIFICATION OF BIODEGRADABLE WASTEWATER
IT7867789A0
(en )
1978-04-10
PROCEDURE FOR THE PURIFICATION OF SLUDGE WATER
PL200425A1
(en )
1978-07-03
METHOD OF BIOLOGICAL SEWAGE TREATMENT
PL205725A1
(en )
1979-11-19
DEVICE FOR THE BIOLOGICAL TREATMENT OF SEWAGE, ESPECIALLY HIGHLY CONCERNED INDUSTRIAL SEWAGE