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Coagulation of natural organic matter in groundwater using aluminium salts
1999
Karlovic, E. (Prirodno-matematicki fakultet, Novi Sad (Yugoslavia). Institut za hemiju) | Dalmacija, B. | Zejak, J. | Bajevic, Lj. | Djeric, J. | Djuric, Z.
Removal of natural organic matter (NOM) from groundwater by aluminium sulphate and polyaluminium chloride (PACl) was investigated. The maximal decrease of UV absorbance at 254 nm was near 70%. Decrease of permanganate value about 50% was achieved by PACl coagulation. Similar effect can be achieved using 2.5 fold higher concentration of aluminium sulphate. Coagulation process at pH 5.5 was successful with 3-5 times less concentration of coagulant. The heterogenous composition of NOM in water had been changing by coagulation. The total trihalomethane formation potential is 50-60% lower in coagulated water. The greatest removal was success for chloroform precursors.
Afficher plus [+] Moins [-]Removal of organic matter from water using activated carbon produced from domestic [Yugoslav] anthracite
1999
Tamas, Z. | Zejak, J. | Becelic, M. (Prirodno-matematicki fakultet, Novi Sad (Yugoslavia). Institut za hemiju)
Removal of natural organic matter from water was investigated using granulated activated carbon. Groundwater from northern Banat region (Serbia, Yugoslavia) was used. Samples of raw water and water after coagulation were ozonated and than GAC adsorption was performed. The investigation was carried out under the static conditions to determine the GAC adsorption capacity and kinetic coefficients.
Afficher plus [+] Moins [-][Reactive walls with iron filings: perspectives and status of Danish activities]
1999
Kjeldsen, P.
[Detailed mapping: is our knowledge sufficient?]
1999
Baumann, J. | Foged, N. | Joergensen, P.
Funnel-and-gate systems for in-situ treatment of contaminated groundwater at former manufactured gas plant sites
1999
Grathwohl, P. | Schad, H.
[Regional experiences with establishment and running of avert procedures]
1999
Jensen, C.B.
In-situ steam/air injection for NAPL removal from the unsaturated zone
1999
Schmidt, R.
[In-situ remediation of three sites polluted with hydrocarbons]
1999
Jeppesen, M.N. | Nielsen, S.T.
[Natural degradation in groundwater contaminated with benzene and mineral oil and chlorinated solvents]
1999
Bjerg, P.L.
Aerobic biodegradation of vinyl chloride and CIS-1,2-dichloroethylene: laboratory and field studies
1999
Ludvigsen, L. | Kiilerich, O. | Broholm, K. | Deigaard, L.
