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

Jelena M. Purenović, Marjan S. Ranđelović, Milan Z. Momčilović, Milovan M. Purenović, Novica J. Stanković, Ljiljana N. Anđelković

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.

Keywords


peat; physicochemical modification; surface groups; arsenic; hydrogen sulphide; adsorption-sorption

Full Text:

PDF (1,602 kB)

References


P.N. Lens, P.M. Vochten, L. Speleers, W.H. Verstraete, Direct treatment of domestic wastewater by percolation over peat, bark and woodchips, Water Res. 28 (1994) 17–26.

A.P.S. Batista, L.P.C. Romão, M.L.P.M. Arguelho, C.A.B. Garcia, J.P.H. Alves, E.A. Passos, Biosorption of Cr(III) using in natura and chemically treated tropical peats, J. Hazard. Mater. 163 (2009) 517–523.

E. Lourie, E. Gjengedal, Metal sorption by peat and algae treated peat: Kinetics and factors affecting the process, Chemosphere 85 (2011) 759–764.

F. Qin, B. Wen, X.-Q. Shan, Y.-N. Xie, T. Liu, S.-Z. Zhang, S.U. Khan, Mechanisms of competitive adsorption of Pb, Cu, and Cd on peat, Environ. Pollut. 144 (2006) 669–680.

M.P. Koivula, K. Kujala, H. Rönkkömäki, M. Mäkelä, Sorption of Pb(II), Cr(III), Cu(II), As(III) to peat, and util-ization of the sorption properties in industrial waste landfill hydraulic barrier layers, J. Hazard. Mater. 164 (2009) 345–352.

L.R. Chistova, L.M. Rogach, T.V. Sokolova, V.S. Pekhtereva, Removal of heavy metal ions from electroplating wastewaters by granulated peat, Torf. Promst 2 (1990) 25–28.

A. Keränen, T. Leiviskä, B.-Y. Gao, O. Hormi, J. Tanskanen, Preparation of novel anion exchangers from pine sawdust and bark, spruce bark, birch bark and peat for the removal of nitrate, Chem. Eng. Sci. 98 (2013) 59–68.

Q. Sun, L. Yang, The adsorption of basic dyes from aqueous solution onmodified peat–resin particle, Water Res. 37 (2003) 1535–1544.

V. Mamleev, S. Bourbigot, J. Yvon, Kinetic analysis of the thermal decomposition of cellulose: The main step of mass loss, J. Anal. Appl. Pyrolysis 80 (2007) 151–165.

H. Seki, A. Suzuki, Adsorption of Heavy Metal Ions onto Insolubilized Humic Acid, J. Colloid Interface Sci. 171 (1995) 490–494.

V.B. Aleskovsky, Chemistry of solid compounds, High School, Moscow, 1978.

S.J. Chapman, C.D. Campbell, A.R. Fraser, G. Puri, FTIR spectroscopy of peat in and bordering Scots pine woodland: relationship with chemical and biological properties, Soil Biol. Biochem. 33 (2001) 1193-1200.

R.R.E. Artz, S.J. Chapman, A.H.J. Robertson, J.M. Potts, F.L. Defarge, S. Gogo, L. Comont, J.-R. Disnar, A.-J. Francez, FTIR spectroscopy can be used as a screening tool for organic matter quality in regenerating cutover peatlands, Soil Biol. Biochem. 40 (2008) 515–527.




DOI: http://dx.doi.org/10.2298/HEMIND160522040P

Refbacks

  • There are currently no refbacks.


Copyright (c) 2017 HEMIJSKA INDUSTRIJA

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.