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Czasopismo
2013 | 11 | 6 | 988-1000
Tytuł artykułu

Use of peat-based sorbents for removal of arsenic compounds

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
It is important to apply sorbent materials for purification of water from arsenic contamination due to serious arsenic pollution worldwide. We have developed new sorbents based on natural materials that provide a cheap and environmentally friendly alternative. For the first time, peat modified with iron compounds and iron humates were tested for sorption of arsenic compounds. The highest sorption capacity was found in peat modified with iron compounds. We have found that sorption of different arsenic speciation forms was strongly dependent on solution pH, reaction time and temperature. Calculations of the sorption process using thermodynamic parameters indicate the spontaneity of sorption process and its endothermic nature. Sorption kinetics showed that most arsenates are removed within 2 hours, and the kinetics of arsenate sorption on modified peat can be described by the pseudo-second order mechanism. [...]
Słowa kluczowe
Wydawca

Czasopismo
Rocznik
Tom
11
Numer
6
Strony
988-1000
Opis fizyczny
Daty
wydano
2013-06-01
online
2013-03-28
Twórcy
autor
  • Department of Environmental Science, University of Latvia, Riga LV, 1586, Latvia, linda_ansone@inbox.lv
  • Department of Environmental Science, University of Latvia, Riga LV, 1586, Latvia, maris.klavins@lu.lv
autor
  • Department of Environmental Science, University of Latvia, Riga LV, 1586, Latvia, linda.eglite@lu.lv
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11532-013-0229-0
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