GB8718676D0
(en )
1987-09-09
Treatment of sewage
PT85484A
(en )
1987-09-01
Method for the treatment of sewage and other impure water
GB2206342B
(en )
1992-01-29
Process and apparatus for the purification of water
GB2190682B
(en )
1990-03-21
Treatment of bio-gas
GB8722897D0
(en )
1987-11-04
Treatment of potable water
GB2199821B
(en )
1990-04-04
Method of and arrangement for purifying contamied water
EP0429661A4
(en )
1991-12-11
Method of water treatment
ZA875739B
(en )
1988-11-30
Method for the treatment of sewage and other impure water
GR870485B
(en )
1987-04-30
Process for sewage and sludge treatment
IE872097L
(en )
1988-02-04
Method for the treatment of sewage and other impure water
IL80548A0
(en )
1987-02-27
Method for the treatment of impure water
AU6765887A
(en )
1987-07-23
Treatment of water
GB8730032D0
(en )
1988-02-03
Treatment of sediment of waters
EP0226715A3
(en )
1988-04-06
Process and apparatus for the biological denitrification of water
ZA88868B
(en )
1988-09-28
Method and apparatus for the purification of water
GB2164641B
(en )
1988-12-29
Method and apparatus for the biological treatment of sewage
GB2210869B
(en )
1990-11-14
Method and apparatus for the treatment of water
CS249487A2
(en )
1990-11-14
Method of magnetohydrodynamical water treatment
GB8929341D0
(en )
1990-02-28
Method of water treatment
GB2179647B
(en )
1989-11-01
Treatment of sewage
IE862944L
(en )
1987-05-08
Method of treatment of impure water
ZA871492B
(en )
1987-10-28
Treatment of waste water
DE3760245D1
(en )
1989-07-20
Gas transfer and flotation process for the treatment of water
ZA876792B
(en )
1988-06-29
Treatment of water
ZA871265B
(en )
1988-11-30
Treatment of water