Physicochemically modified peat by thermal and oxidation processes as an active material for purification of wastewaters from certain hazardous pollutants

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Published: 25.09.2017
DOI: https://doi.org/10.2298/HEMIND160522040P
Keywords:
peat, physicochemical modification, surface groups, arsenic, hydrogen sulphide, adsorption-sorption

Main Article Content

Jelena M. Purenović
Faculty of Technical Sciences Čačak, University of Kragujevac, Čačak
Marjan S. Ranđelović
Faculty of Sciences and Mathematics, Department of Chemistry, University of Niš, Niš
Milan Z. Momčilović
Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade
Milovan M. Purenović
Faculty of Sciences and Mathematics, Department of Chemistry, University of Niš, Niš
Novica J. Stanković
College of Textile, University of Niš, Leskovac
Ljiljana N. Anđelković
Faculty of Technical Sciences, University of Priština, Kosovska Mitrovica

Abstract

The physicochemical modification of peat through thermal and oxidation processes was carried out, in order to obtain new, inexpensive and active material for purification of different types of waters. During the modification, surface chemical compounds of Shilov type were formed. Batch adsorption properties and suitability of physicochemically modified peat (PCMP) for odor removal were tested in aqueous solutions of H2S and col­loidal sulphur. Additionally, PCMP was tested in the removal of As(V) which is hazardous ingredient in contaminated waters. Possible mechanisms of pollutants binding include interactions, which lead to formation of adducts and clathrates. All these processes are elucidated in detail. The results showed that the obtained material can be used for the removal of sulphide, colloidal sulphur and As(V) from different types of waters.

Article Details

Issue

Vol. 71 No. 4 (2017)

Section

General
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How to Cite

[1]
J. M. Purenović, M. S. Ranđelović, M. Z. Momčilović, M. M. Purenović, N. J. Stanković, and L. N. Anđelković, “Physicochemically modified peat by thermal and oxidation processes as an active material for purification of wastewaters from certain hazardous pollutants”, Hem Ind, vol. 71, no. 4, pp. 299–306, Sep. 2017, doi: 10.2298/HEMIND160522040P.
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