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Selected Publication:

Fuerhacker, M; Haile, TM; Kogelnig, D; Stojanovic, A; Keppler, B; .
(2012): Application of ionic liquids for the removal of heavy metals from wastewater and activated sludge.
Water Sci Technol. 2012; 65(10):1765-1773 FullText FullText_BOKU

Abstract:
This paper presents the results of adsorption studies on the removal of heavy metals (Cr, Cu, Cd, Ni, Pb and Zn) from standard solutions, real wastewater samples and activated sewage sludge using a new technique of liquid-liquid extraction using quaternary ammonium and phosphonium ionic liquids (ILs). Batch sorption experiments were conducted using the ILs [PR4][TS], [PR4][MTBA], [A336] [TS] and [A336][MTBA]. Removal of these heavy metals from standard solutions were not effective, however removal of heavy metals from the industrial effluents/wastewater treatment plants were satisfactory, indicating that the removal depends mainly on the composition of the wastewater and cannot be predicted with standard solutions. Removal of heavy metals from activated sludge proved to be more successful than conventional methods such as incineration, acid extraction, thermal treatment, etc. For the heavy metals Cu, Ni and Zn, >= 90% removal was achieved.
Authors BOKU Wien:
F├╝rhacker Maria
Measho Haile Tadele
Find related publications in this database (using NML MeSH Indexing)
Adsorption;Industrial Waste*;Ionic Liquids/chemistry*;Liquid-Liquid Extraction/methods;Metals, Heavy/chemistry*;Sewage/chemistry;Waste Disposal, Fluid/methods*;Water Purification/methods*;

Find related publications in this database (Keywords)
activated sludge
heavy metal removal
ionic liquids
wastewater


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