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Journal
2013 | 11 | 6 | 988-1000
Article title

Use of peat-based sorbents for removal of arsenic compounds

Content
Title variants
Languages of publication
EN
Abstracts
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. [...]
Keywords
Publisher
Journal
Year
Volume
11
Issue
6
Pages
988-1000
Physical description
Dates
published
1 - 6 - 2013
online
28 - 3 - 2013
References
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_s11532-013-0229-0
Identifiers
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