Publication Details

Category Text Publication
Reference Category Journals
Title (Primary) Colloidal activated carbon and carbo-iron - novel materials for in-situ groundwater treatment
Author Mackenzie, K. ORCID logo ; Schierz, A.; Georgi, A.; Kopinke, F.-D.
Source Titel Global NEST Journal
Year 2008
Department TUCHEM
Volume 10
Issue 1
Page From 54
Page To 61
Language englisch
Keywords Zero-valent iron; activated carbon; CARBO-IRON; dechlorination; sorptionassisted reaction; particle transport; groundwater treatment; plume and source treatment
Abstract Two novel materials have been developed and tested in initial studies for the in-situ generation of sorption and reactive barriers for subsurface water treatment at low cost by introducing sorbents or reagents via injection wells. Both materials are based on finely-ground activated carbon with a particle size of D50 = 0.8 ìm which is quasi-soluble, i.e. it forms stable colloidal solutions in water over a wide concentration range. With these activated carbon colloids, an approved material of environmental technology is now applicable for injection into contaminated aquifers to form sorption barriers by controlled deposition on aquifer sediment directly in the flow passages. A new remediation strategy can be followed - the in-situ generation of a permeable AC sorption barrier in contaminated aquifers. Based on the colloidal carbon particles, a second material has been developed which combines the sorption properties of the activated carbon carrier and the reactivity of the zerovalent iron deposits. This CARBO-IRON (20 wt-% zero-valent iron) has proved its suitability as a dehalogenation reagent applicable for both plume and source treatment.
Persistent UFZ Identifier
Mackenzie, K., Schierz, A., Georgi, A., Kopinke, F.-D. (2008):
Colloidal activated carbon and carbo-iron - novel materials for in-situ groundwater treatment
Global NEST Journal 10 (1), 54 - 61