EP0174429A3
(en )
1986-06-04
Process and apparatus for the aeration of waste water or similar matter in aeration tanks
EP0470931A3
(en )
1992-05-13
Soil and waste water 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
CS708489A2
(en )
1990-10-12
Method of waste waters treatment
YU233087A
(en )
1989-08-31
Process for obtaining biocide for preventing microorganisms growth in technologic and waste waters
PL250910A1
(en )
1986-06-17
Sanitary sewage treatment method and plant
PL268213A1
(en )
1989-04-17
Mechanical and biological sewage treatment plant
PL276822A1
(en )
1989-08-21
Apparatus for mechanically and biologically treating waste waters
GB2297500B
(en )
1997-09-17
Waste water treatment plant and method for use therein
GR870652B
(en )
1987-06-30
Process for the purification of agricultural vegetable waste fluids in particular of vegetation waters
CS9001741A2
(en )
1991-10-15
Aeration tank for waste waters treatment
PL284209A1
(en )
1991-03-25
Method for running chemical dephosphatation of waste in waste treatment plants with conventional biological beds
PL269849A1
(en )
1989-07-10
Apparatus for bilogically denitrifying and dephosphating waste waters
PL272491A1
(en )
1989-11-27
Device for aeration and pumping in small waste treatment plants
PL273829A1
(en )
1990-01-22
Propeller-type aerator in particular for biologically treated sewages
PL292075A1
(en )
1993-04-19
Method of processing semi-liquid sludges produced in biological treatment plants
PL266051A1
(en )
1988-12-08
Biological waste treatment plant
CS574389A2
(en )
1991-06-11
Method of waste waters treatment with content of avermectines and their derivatives
CS275409B2
(en )
1992-02-19
Method of waste waters biological treatment
PL249107A1
(en )
1985-01-30
Method of aeration of liquids,especially of sewage in blocked biological sewage treatment plants
HUT69529A
(en )
1995-09-28
Process for sterilizing and denitrifying waters of natural origin
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