GB2225779B
(en )
1992-08-19
Sewage treatment plant
PL279035A1
(en )
1990-01-08
Agent for increasing water retention in soil and method for soil treatment
GB8910702D0
(en )
1989-06-28
Organic waste treatment system and method
EP0346611A3
(en )
1990-12-27
Pump sterilisation process and pump device for using the same
EP0470931A3
(en )
1992-05-13
Soil and waste water treatment
GB8808646D0
(en )
1988-05-18
Improvements in plant health
GB2224728B
(en )
1992-07-29
Sewage treatment plants
PL272491A1
(en )
1989-11-27
Device for aeration and pumping in small waste treatment plants
PL268213A1
(en )
1989-04-17
Mechanical and biological sewage treatment plant
HUT48793A
(en )
1989-07-28
Device for treating wall-trees in greenhouses
KR940015852U
(en )
1994-07-22
Sludge collection device in wastewater treatment plant
GR862956B
(en )
1987-10-09
Sewage treatment device and application method therefor
PL273829A1
(en )
1990-01-22
Propeller-type aerator in particular for biologically treated sewages
GB9304785D0
(en )
1993-04-28
Improvements in aerating devices
PL276822A1
(en )
1989-08-21
Apparatus for mechanically and biologically treating waste waters
CS468088A1
(en )
1990-03-14
Device for circulated water's pumping and aeration
PL270034A1
(en )
1989-07-10
Mechanical and biological treatment plant
PL296261A1
(en )
1994-04-18
Mechanical and biological sewage treatment plant
PL295218A1
(en )
1994-01-10
Mechanical and biological sewage treatment plant
GB9205341D0
(en )
1992-04-22
Improvements in or relating to organic waste treatment methods and apparatus
ZA886854B
(en )
1989-05-30
Wastewater treatment device
PL275902A1
(en )
1990-05-28
Biological sewage treatment plant
PL270746A1
(en )
1989-10-30
Biological sewage treatment plant
PL275901A1
(en )
1990-05-28
Biological sewage treatment plant
GB8814861D0
(en )
1988-07-27
Treatment apparatus for use in gardening/agriculture