Humus removal efficiency from river water by a variety of methods and phycical-chemical properties of isolated humus
DOI:
https://doi.org/10.15626/Eco-Tech.1999.025Abstract
The efficiency of hwnic substances isolation, from river water was assessed utilizing a variety of techniques. Selected physical and chemical characteristics of isolates were analysed, in order to compare properties of the isolated material. It was found that the recovery of dissolved hwnus depends on a method employed for isolation. Thus it was equal to 70 % (extraction), 87 % (reverse osmosis), 33 % ( coprccipitation), 76 % (anion exchange), and ranged from 40 % to 87 % for a variety of solid sorbents. The efficiency of sorption/desertion on solid sorbents, measured as recovery of coloured substances (%), was equal to: activated carbon (100/40), weak anion exchanger DEAE (Cr) (95/95), styrene-divinylbenzene Amberlite XAD-2 (96/87), poliacrylamide
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Aiken G. (1985). Isolation and concentration techniques to aquatic humic substances. In ,,Humic substances in soil, sediment and water". G. Aiken, D. McKnight and R. Wershaw eds., Wiley, New York 1985, 363-385.
Gjessing E., Alberts J., Bruchet A., Egeberg P., Lydersen E., Hogewn L., Hobed J., Munster U., Pempkowiak J., Perdue M., Ratnawera M., Rybacki D., Takes M., AbbotBrown G. (1998): Multi method characterisation of natural organic matter isolated from water characterisation of reverse osmosis isolates from water of two semi identical dystrophic lakes basins in Norway. Wat. Res., 32, 3108-3124. DOI: https://doi.org/10.1016/S0043-1354(98)00060-8
Pempkowiak J. (1991). Comparison of Amberlite XAD-2 and XAD-8 resins as sorbents of humic substances from water. Humus untised, 3, 323-326.
Schnitzer M .. Khan S. (1972). Humic substances in the environment. Marcel Dekker, New York 1972. 327 pp.
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