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Issue DateTitleAuthor(s)
128-Jun-1985Purifying residual water contg. organic substances by adding urea and formaldehyde, sepg. the resin by filtration or sedimentation and purifying the water biologically after neutralisingParmac, Sorin; Buliga, A.; Chiru, Epsica; Dumitrescu, Emil; Costov, Ioan; Cruceru, Mihail; Varlam, C.; Pristavu, N.
230-Nov-1981Residual water­ purifying inorganic complex coagulant prepn. ­ by treating serpentine ore with hot sulphuric acid and sepg. and opt. concentrating acid filtrateCocheci, Vasile; Arpad, Eugen; Lorineti, Atila; Burtica, Georgeta; Ilea, Dorina
330-Jul-1985Purifying residual industrial waters contg. organic contaminants by initial incomplete purificn. with catalytic redox system followed by complete biological purificn. with active sludgeCruceru, Mihail; Licaret, Constantin; Teodorescu, Lavinia
430-Sep-1984Phosphate recovery from residual acidic waters by consecutive neutralisation first with chalk or lime and then lime, with pptn. of calcium phosphateCruceru, Mihail; Dumitrescu, Emil; Parmac, Sorin; Coroiu, Cornel; Costov, Ioan
530-Oct-1984Treating residual acidic waters from chemical fertiliser industry with phosphorus and opt. phospho-gypsum by use as reagent and creation of high calcium carbonate contentCruceru, Mihail; Coroiu, Cornel; Parmac, Sorin; Dumitrescu, Emil; Costov, Ioan
630-Nov-1982Di:valent sulphur cpd.­ -contaminated waste water and gas purificn. ­ - by contact with inorganic copper, iron and nickel salt catalystCruceru, Mihail; Craiu, Cornel; Toader, Felicia
710-Nov-1988Extn. process for removal of aromatic amine(s) ­ from residual watersNicolau, Margareta; Stan, D. E.; Craiu, Cornel; Curcaneanu, Nicolae; Georgescu, F.; Curcaneanu, S.