YU216176A
(en )
1982-05-31
Reactor for biological purification of water
PH15297A
(en )
1982-11-12
Process for the purification of water
AU7316474A
(en )
1976-03-18
Purification of waste water
CA1025801A
(en )
1978-02-07
Process for the purification of waste waters
YU93475A
(en )
1981-06-30
Improvement ina reactor for the purification of water by fluid filtering
CH612160A5
(en )
1979-07-13
Process for the biological purification of effluent
AU1570976A
(en )
1978-01-12
Water purification
AU521911B2
(en )
1982-05-06
Chemical purification of water
HU178513B
(en )
1982-05-28
Process for the purification of water
IE42633L
(en )
1976-08-10
Purification of cephamycin c
AU486691B2
(en )
1976-10-21
Reactor for purification of water by fluid filtration
ZA738172B
(en )
1975-02-26
A process for the purification of contaminated water
CA986028A
(en )
1976-03-23
Process for purification of water
SU570557A1
(en )
1977-08-30
Method of mechanical purification of waste water
CS184971B1
(en )
1978-09-15
Reactor for the biological purification of water
EG11843A
(en )
1977-12-31
Filter for purification of water for house use
JPS5262961A
(en )
1977-05-24
Method of purifying dirty water by means of underwater drive
AU486167B2
(en )
1976-09-16
a PROCESS FORTHE PURIFICATION OF CONTAMINATED WATER
AU491382B2
(en )
1976-11-25
Purification of water
AU8129375A
(en )
1976-11-25
Purification of water
AU498308B2
(en )
1979-03-01
Process for the purification of waste water
JPS5262955A
(en )
1977-05-24
Method of purifying dirty water by means of underwater drive
CS183329B1
(en )
1978-06-30
Reactor for the biological purification of water
AU493425B2
(en )
1977-05-26
Purification of effluent
AU487459B2
(en )
1975-12-04
Process forthe purification of waste waters