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Impact of natural nanophases on heavy-metal retention in zeolite-supported reactive filtration facilities for urban run-off treatment

Author:
Förstner, U., Jacobs, P., Kammer, F.
Source:
Fresenius' journal of analytical chemistry 2001 v.371 no.5 pp. 652-659
ISSN:
0937-0633
Subject:
colloids, filtration, goethite, heavy metals, humic substances, iron oxides, lead, runoff
Abstract:
The retention of lead in zeolite-supported sand-filter columns has been tested with focus on the effect of potentially mobile natural nanophases (natural colloids, humic substances). It could be shown that interaction of lead with natural nanophases enhanced the mobility of the contaminant. In the presence of iron oxide particles (goethite) a normal breakthrough of lead was observed. Humic substance can act as a carrier for lead itself and can enhance the mobility of lead bound to inorganic nanophases, because of the increased mobility of the nanophases in the presence of humic substances.
Agid:
244516