DE3276308D1
(en )
1987-06-19
Flocculant aid and process for water purification
ZA842133B
(en )
1985-11-27
Biological wastewater treating system
HK12185A
(en )
1985-02-19
Waste water denitrification process
ZA87867B
(en )
1987-09-30
Process for purifying dyeing wastewaters
DE3572342D1
(en )
1989-09-21
Process and apparatus for the indirect drying of sludges, especially waste water sludges
GB2195625B
(en )
1990-05-30
Process for activated-sludge treatment of sewage or industrial waste water
EP0196597A3
(en )
1988-07-27
Process for treating ammonium nitrate-containing waste water
DE3471598D1
(en )
1988-07-07
Process for the treatment of industrial residual sludge
DE3561387D1
(en )
1988-02-18
Process for treating and recovering pickling waste liquids for stainless steel
GB2113667B
(en )
1985-06-26
Activated-sludge process for wastewater treatment
DE3469723D1
(en )
1988-04-14
Improved sewage sludge treatment apparatus and process
GB8301227D0
(en )
1983-02-16
Treating waste gas
EP0182380A3
(en )
1987-10-21
Process and apparatus for the biological treatment of water, especially for the denitrification of drinking water
DE3463367D1
(en )
1987-06-04
Process and apparatus for the biological purification of waste water
DE3264530D1
(en )
1985-08-08
Process for the simultaneous purification and detoxication of waste waters or solutions that contain cr (vi)
YU43898B
(en )
1989-12-31
Process for economical chrome tanning
DE3368910D1
(en )
1987-02-12
Process for the disposal of industrial sludges
DE3468098D1
(en )
1988-01-28
Process for dewatering sludges and/or organic matter
YU117481A
(en )
1988-06-30
Process for purifying waste waters of textile, leather and similar industries
GB8313090D0
(en )
1983-06-15
Treating industrial waste waters
DE3060768D1
(en )
1982-10-14
Process for the detoxification of waste waters that contain cyanide, and reaction solutions
GB8525982D0
(en )
1985-11-27
Wastewater treatment process
ZA822870B
(en )
1983-02-23
A process for the treatment of the effluent waters of mine extractive industries
DE3465973D1
(en )
1987-10-15
Process for dewatering sludges and/or organic matter
GR870485B
(en )
1987-04-30
Process for sewage and sludge treatment