Please use this identifier to cite or link to this item: https://doi.org/10.15480/882.446
Fulltext available Open Access
Title: Studies on separation of heavy metals from acidic solutions by foam fractionation with respect to an application on acidic soil extracs
Language: English
Authors: Wömmel, Simone 
Calmano, Wolfgang 
Keywords: heavy metals;foam fractionation;soil extract;hexamethylenedithiocarbamate;surfactants
Issue Date: 1992
Source: Acta hydrochimica et hydrobiologica 20 (1992), H. 5, S. 265-8
Abstract (english): An experimental investigation is presented on the batch foam fractionation of the heavy metal cations Pb2+, Cd2+, Cu2+, Sb3+ and As5+ from diluted aqueous solutions with hexamethylenedithiocarbamate (HMDC) as complexing agent and sodiumdodecylsulfate (SDS) as surfactant. Among the considered pH-values of 2, 4 and 7 the pH 2 experiments allow a direct application of foam fractionation on acidic extracts from heavy metal contaminated soil. The experiments at pH 2 and pH 4 show better results than those at neutral pH. Although a simple device was used, a maximum enrichment factor of 13.8 and a minimum removal factor of 0.01 have been measured. The flotation with weak organic acids like citric acid (CA) and acetic acid (AA) show about 50-70% smaller enrichment factors than those acidified with hydrochloric acid. The dissolution and mixing of the reacting components as well as the concentration of the detergent and the gaseous volume flow can be regarded as basic parameters of foam fractionation.
URI: http://tubdok.tub.tuhh.de/handle/11420/448
DOI: 10.15480/882.446
Institute: Umwelttechnik und Energiewirtschaft V-9 
Type: (wissenschaftlicher) Artikel
License: http://doku.b.tu-harburg.de/doku/lic_ohne_pod.php
Appears in Collections:Publications with fulltext

Files in This Item:
File Description SizeFormat
S0001203.pdf332,52 kBAdobe PDFThumbnail
View/Open
Show full item record

Page view(s)

258
Last Week
0
Last month
0
checked on Oct 1, 2020

Download(s)

153
checked on Oct 1, 2020

Google ScholarTM

Check

Note about this record

Export

Items in TORE are protected by copyright, with all rights reserved, unless otherwise indicated.