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title:	Adsorbents for iron removal obtained from vermiculite
author:	Węgrzyn Agnieszka , Chmielarz Lucjan , Zjeżdżałka Paweł , Kowalczyk Andrzej , Jabłońska Magdalena , Baldrich Tolosa Xavier, Michalik Marek
journal title:	Acta Geodynamica et Geomaterialia
volume:	10
issue:	3 (171)
date of publication :	2013
pages:	353-361
ISSN:	1214-9705
eISSN:	2336-4351
DOI:	10.13168/AGG.2013.0034
URL:	https://www.irsm.cas.cz/materialy/acta_content/2013_doi/Wegrzyn_AGG_2013_0034.pdf
date accessed:	2018-12-03
language:	English
journal language:	English
abstract in English:	In presented work, raw, expanded and acid treated vermiculites were used as low-cost and active adsorbents for reducing o f environmental pollution with heavy metals. Acid treatment was performed at elevated temperature (95°C) for 2 and 24 h in solution of HNO 3 . Adsorption capacity towards Fe 3+ was studied in column, semi- b atch and batch mode. It was shown that all samples are effective in removal of heavy metals; however adsorption mechanism is based not only on ion exchange o f interlayer cations but also precipitation/ deposition processes. Starting material a nd modified samples as well as spent adsorbents were characterized with respect to the vermic ulite structure using X-ray diffraction method
keywords in English:	vermiculite, iron remova, acid treatment, adsorption
number of pulisher's sheets:	1
affiliation:	Wydział Biologii i Nauk o Ziemi : Instytut Nauk Geologicznych, Wydział Chemii : Zakład Technologii Chemicznej
type:	journal article
subtype:	academic paper

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