IL51663A0
(en )
1977-05-31
Method of treating sewage by the activated sludge process
JPS52133500A
(en )
1977-11-08
Method of processing organic waste
NL7606059A
(en )
1976-12-20
METHOD AND EQUIPMENT FOR THE PURIFICATION OF WASTEWATER.
AT364799B
(en )
1981-11-10
METHOD FOR THE ACTIVATED SLUDGE TREATMENT OF WASTEWATER
GB1541164A
(en )
1979-02-21
Apparatus for the aerobic biological treatment of sewage
NL7705427A
(en )
1978-11-21
METHOD AND INSTALLATION FOR THE BIOLOGICAL PURIFICATION OF WASTE WATER.
IT7847961A0
(en )
1978-02-07
PROCEDURE FOR THE TREATMENT OF SEWAGE SLUDGE
PL205782A1
(en )
1979-03-12
METHOD OF REMOVING SOLID SUBSTANCES FROM CARBON LIQUIDS
NL7806660A
(en )
1979-02-12
METHOD AND EQUIPMENT FOR THE TREATMENT OF WASTE WATER.
NL7713636A
(en )
1978-06-15
METHOD AND EQUIPMENT FOR THE PURIFICATION OF WASTE WATER.
JPS52139259A
(en )
1977-11-21
Modifying method of biological sludge
PL197902A1
(en )
1978-11-20
METHOD OF RECOVERING THE RUBBER AND OTHER NUTRITION SUBSTANCES FROM SEWAGE SLUDGE
JPS52139258A
(en )
1977-11-21
Modifying method of biological sludge
JPS52100751A
(en )
1977-08-24
Advanced treatment method of sewage
CS190502B2
(en )
1979-05-31
Method for the biological purification of waste water and device for making the said method
JPS5348356A
(en )
1978-05-01
Biological treatment of organic waste water
JPS5468055A
(en )
1979-05-31
Method of purifying organic sewage
JPS5313547A
(en )
1978-02-07
Treating method of activated sludge
JPS5468047A
(en )
1979-05-31
Method of purifying sewage and sludge
JPS5337577A
(en )
1978-04-06
Method of biological removal of nitrogen from waste liquids
JPS52155177A
(en )
1977-12-23
Method of treating organic waste waters
AT346256B
(en )
1978-11-10
DEVICE FOR THE BIOLOGICAL PURIFICATION OF WASTE WATER
JPS5316363A
(en )
1978-02-15
Method of solidificating sediment and sludge
NL7706749A
(en )
1978-12-22
METHOD AND INSTALLATION FOR THE BIOLOGICAL PURIFICATION OF WASTE WATER.
JPS5346166A
(en )
1978-04-25
Biological treatment of waste water