EURO-ECO 2011

Hanover

21 - 22 November 2011

Environmental, Engineering - Economic and Legal Aspects for Sustainable Living

European Academy of Natural Sciences, Hanover

European Scientific Society, Hanover

University of Bremen, Bremen

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N.A. Zakarina
A.I. Tshai		 NEW SORBENTS ON THE BASE OF PILLARED CLAYS FOR WASTE WATERS PURIFICATION FROM HEAVY METALS IONS
D.V. Sokolsky Institute of Organic Catalysis and Electrochemistry, Almaty, Kazakhstan
JSC “Caustik” Pavlodar, Kazakhstan

Central department technical control (CDTC) of JSC “Caustik” has been certi?ed within the system of certi?cation of Kazakhstan Republic as required by the standard ST RK ISO/MEK 17025-2007 “General standards to competence of the test and calibrate laboratories”. One of the activity direction of CDTC of JSC “Caustik” is the tests of waste waters and underground waters on 32 characteristics including the content of Zr, Cr, Fe, Ni, Hg and Cu. The tests are carried out as required by the interstate standards (GOST), state standards of Kazakhstan Republic and according to con?rmed Russian methodologies, which were registered in State regulations of Kazakhstan Republic. The content of ions were determined with using technique for liquid analysis “Fluor at 02-3M (Russia, Sant-Petersburg).

Experimental data of sorption of Ni2+, Cr3+, Fe3+, Zn2+ from waste waters of some industrial enterprises of Pavlodar city by pillared clays on the base of natural Tagan montmorillonite (Ust-Kamenogorsk, Kazakhstan) and kaolinites of Sarymsak and Ermakov deposits (Pavlodar, Kazakhstan) were presented.

Activated natural clays pillared by different concentrations of hydroxocomplexes of Al3+, Fe3+, Zr4+, Ti4+. The puri?cation of waste waters were carried out in dynamic conditions passing through the sorbent certain volume of waste water.

The presentation provides assessment of the environmental pollution of the waste waters of JSC “Caustik”, plants “Casting”, “Cardboardruberoid”, “Rukan”, lake-accumulator Bilkildak. It was seen that waste waters contain great quantities of Ni2+, Cr3+, Fe3+, Zn2+. Optimal composition of pillared clays for puri?cation of waste waters from heavy metals ions were selected. Modi?ed natural kaolinities has a more high sorption ability than pillared montmorillonites. The puri?cation degree of waste waters of JSC “Caustik” on optimal sorbent sample of modi?ed kaolinite is decreased in row: Zn2+(100%)>Fe3+(93%)>Cr3+(90.8%)>Ni2+(88.6%).

The close results were obtained during the purification of waste waters of plants “Casting”, “Cardboardruberoid”, “Rukan”. High sorption ability of pillared montmorillonites and kaolinites of Kazakhstan deposits was confirmed during the purification of waste waters of lake-accumulator Bilkildak from ions of heavy metals.

We gratefully acknowledge for support from International Science and Technology Center (ISTC), Moscow (Project No. K-1476).

 

Global ecological problems of home enterprises List of abstracts PHOTOCATALYTIC DECOMPOSITION OF HYDROGEN SULFIDE UNDER THE ULTRA VIOLET ANDSOLAR IRRADIATION ON MONTMORILLONITE PILLARED BY Ti, Fe AND Ti-Fe