JPS5234544A
(en )
1977-03-16
Sludge treating method and waste treating device
JPS51128148A
(en )
1976-11-08
Method of dehydrating waste water treating waste and its device
GB1552507A
(en )
1979-09-12
Methods of desulphurising iron and steel
JPS51131159A
(en )
1976-11-15
Method of treating water and its device
PL211282A1
(pl )
1979-08-27
Hydrometalurgiczny sposob obrobki tlenkow i ferrytow zawierajacych zelazo i inne metale
JPS5418151A
(en )
1979-02-09
Method of removing iron and manganese dissolved in water
GB1539772A
(en )
1979-02-07
Crane construction and method of operation
PL201561A1
(pl )
1979-05-21
Sposob uzdatniania wod podziemnych o duzej zawartosci zelaza i manganu
JPS51148966A
(en )
1976-12-21
Waste water treating device and waste water treating method
JPS53103497A
(en )
1978-09-08
Heterocyclopyrimidines composition and treating method
JPS5462653A
(en )
1979-05-19
Method of treating and denitrifying sewage
JPS51128806A
(en )
1976-11-10
Method of hardening poor subsoil and so on
JPS5214067A
(en )
1977-02-02
Waste water treating method and its device
JPS5382052A
(en )
1978-07-20
Method of treating drainage
JPS5421052A
(en )
1979-02-16
Method of treating drainage containing nitrogen and organic substance to be oxidized
JPS5371612A
(en )
1978-06-26
Treatment method of low vanadium iron core
JPS53144115A
(en )
1978-12-15
Method of improving sludge of high water content and weak ground
JPS5339934A
(en )
1978-04-12
Method of chemical surface treatment of iron and steel
JPS5358172A
(en )
1978-05-25
Method of drying and burning up waste
JPS5313547A
(en )
1978-02-07
Treating method of activated sludge
JPS52131608A
(en )
1977-11-04
Method of treating sludge and so on
JPS51121473A
(en )
1976-10-23
Method of treating inorganic and organic waste materials
AU516571B2
(en )
1981-06-11
Method of and installation forthe treatment of groundwater
JPS5354864A
(en )
1978-05-18
Organic sewage treating agent and sewage treating method
JPS5349005A
(en )
1978-05-04
Method of treating slags