EP0260187A3
(en )
1989-02-22
Intermittent aeration type biological treatment process and system therefor
AU573411B2
(en )
1988-06-09
Biological aerobic wastewater treatment
ZA854338B
(en )
1986-01-29
Improved wastewater treatment plant and method
EP0182380A3
(en )
1987-10-21
Process and apparatus for the biological treatment of water, especially for the denitrification of drinking water
EP0266425A4
(en )
1988-09-28
Aeration type water treatment plant.
EP0185542A3
(en )
1987-10-07
Improvements in sewage treatment biological rotors
PL250910A1
(en )
1986-06-17
Sanitary sewage treatment method and plant
DE3675243D1
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1990-12-06
DEVICE FOR AEROBIC BIOLOGICAL WASTE WATER TREATMENT.
PL268213A1
(en )
1989-04-17
Mechanical and biological sewage treatment plant
PL247756A1
(en )
1985-11-19
Biological sewage treatment plant
GB2178333B
(en )
1988-12-21
Sewage treatment plant
GB2164641B
(en )
1988-12-29
Method and apparatus for the biological treatment of sewage
PL252948A1
(en )
1986-11-04
Biological sewage treatment plant
PL252171A1
(en )
1986-09-09
Biological sewage treatment plant
PL137764B2
(en )
1986-07-31
Biological sewage treatment plant
PL241242A2
(en )
1984-09-24
Biological sewage treatment plant
PL251201A2
(en )
1985-12-03
Biological sewage treatment method
GR870652B
(en )
1987-06-30
Process for the purification of agricultural vegetable waste fluids in particular of vegetation waters
PL263624A1
(en )
1988-09-15
Biological sewage treatment plant
PL267369A1
(en )
1989-04-17
Biological sewage treatment plant
PL266669A1
(en )
1989-01-23
Biological sewage treatment plant
HU896688D0
(en )
1990-03-28
Biological sewage treatment plant
PL275901A1
(en )
1990-05-28
Biological sewage treatment plant
PL275902A1
(en )
1990-05-28
Biological sewage treatment plant
PL270746A1
(en )
1989-10-30
Biological sewage treatment plant