Study of Sorbents Obtained from Sapropel of Lakes Kachkulnya and Barchin (Novosibirsk Region)
I. P. IVANOV1, V. I. SHARYPOV1, A. V. RUDKOVSKIY1, O. P. TARAN2,3, V. D. STRAKHOVENKO4 and B. N. KUZNETSOV1,5
1Institute of Chemistry and Chemical Technology, Siberian Branch of the Russian Academy of Sciences,
Ul. K. Marksa 42, Krasnoyarsk 660049 (Russia)
E-mail: bnk@icct.ru
2Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences,
Pr. Akademika Lavrentyeva 5, Novosibirsk 630090 (Russia)
3Novosibirsk State Technical University,
Ul. K. Marksa 20, Novosibirsk 630073 (Russia)
4Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences,
Pr. Akademika Koptyuga 3, Novosibirsk 630090 (Russia)
5Siberian Federal University,
Prospekt Svobodnyi 79, Krasnoyarsk 660041 (Russia)
Keywords: lacustrine sapropel, thermo-alkaline activation, carbonization-activation by water vapour, porous materials, sorbents
Pages: 271–277
Abstract
Porous materials from sapropels of lakes of the Novosibirsk Region of the organic (Lake Kachkulnya) and organomineral (Lake Barchin) types, as well as from solid residues of their thermal dissolution in ethanol were obtained by thermochemical activation methods with potassium hydroxide and one-step carbonization-activation by water vapour. Textural and adsorption properties of porous materials were studied. It was established that porous materials with the specific surface up to 618 m2/g, total volume of pores of 0.26 cm3/g (according to BET), sorption activity on iodine and methylene blue of 58.9 % and 189.1 mg/g, respectively, could be obtained by the thermochemical activation of sapropels of the organic type. It was shown that these materials could be used as organomineral sorbents in technologies of the sewage treatment from ions of heavy metals and air from vapours of low molecular mass hydrocarbons.
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