GB1538662A
(en )
1979-01-24
Chemical waste water treatment method
JPS5273542A
(en )
1977-06-20
Water treatment method
AU2351077A
(en )
1978-09-28
A method of treating water
JPS5264154A
(en )
1977-05-27
Waste water treating method
JPS52138486A
(en )
1977-11-18
Propanee1*33diphosphoric acid for treating water
JPS5255256A
(en )
1977-05-06
Waste water treating method
IT1059012B
(it )
1982-05-31
Metodo per purivicare acque di rifiuto
CS182584B1
(en )
1978-04-28
Method of selective isolation of salts,acids or bases from waste water
JPS51139172A
(en )
1976-12-01
Water treating method
MY8100190A
(en )
1981-12-31
Method of waste water treatment by yeast
JPS5335254A
(en )
1978-04-01
Waste water treating method
JPS5214014A
(en )
1977-02-02
Dehydration method used for under water driving construction method
JPS52100751A
(en )
1977-08-24
Advanced treatment method of sewage
JPS5328957A
(en )
1978-03-17
Waste water purifying method
JPS5326412A
(en )
1978-03-11
Under water driving method
JPS5351522A
(en )
1978-05-11
Method of changing small pipe for water supply
AU2955377A
(en )
1979-04-26
Method for the purification of sea water
JPS5297910A
(en )
1977-08-17
Method of purifying lactic acid
JPS5232882A
(en )
1977-03-12
Method of removing water from aqueous solution
JPS5353155A
(en )
1978-05-15
Treating method of waste water of slaughterhouse
JPS5296756A
(en )
1977-08-13
Purifying method of brine for freezing
JPS535463A
(en )
1978-01-19
Method of hydroextracting high water sludge
JPS5358154A
(en )
1978-05-25
Water treating method
CS180505B1
(en )
1978-01-31
Method for isolation of lanthanides from strongly acid water solutions
JPS52144160A
(en )
1977-12-01
Removing method of ammonia from waste water