Humic substances adsorbed on mineral particles
promote the sorption of both hydrophobic organic
compounds (Murphy et al., 1990) and metallic cations
(Zachara et al., 1994; Spark et al., 1997). Mineral-bound
humic substances modify inorganic surfaces, changing
the nature and number of complexation sites for contaminants
and provide, therefore, a major sink for the
removal of contaminants in liquid media and to prevent
groundwater contamination
Humic substances adsorbed on mineral particlespromote the sorption of both hydrophobic organiccompounds (Murphy et al., 1990) and metallic cations(Zachara et al., 1994; Spark et al., 1997). Mineral-boundhumic substances modify inorganic surfaces, changingthe nature and number of complexation sites for contaminantsand provide, therefore, a major sink for theremoval of contaminants in liquid media and to preventgroundwater contamination
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