CHELATE-ASSISTED PHYTOEXTRATION OF HEAVY METALS FROM SUBSTRATUM, COMPOSED ON THE BASIS OF SEWAGE SLUDGE

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Irina Avtukhovich

Abstract

The three-year field experiment was conducted on treatment facilities of town Istra to test chelate-assisted phytoextraction of Cd, Cu and Zn using EDTA and safflower dyeing (Carthamus tinctorius L.) on substratum, composed on the basis of sewage sludge. Chelating agent EDTA applied in rates accordingly 1; 3 and 6 mmol/kg onve and annually according to the scheme of experiment. EDTA, applied in rates 1 and 3 mmol/kg of substratum improves parameters of plants’ productivity. In all investigated application rates EDTA increases bioavailability of metals in the substratum and raises accumulation and uptake of pollutants by plants from substratum. In variants with annual application of EDTA in rates 1 and 3 mmol/kg the highest accumulation and removal of pollutants by plants are registered. 

Article Details

How to Cite
AVTUKHOVICH, Irina. CHELATE-ASSISTED PHYTOEXTRATION OF HEAVY METALS FROM SUBSTRATUM, COMPOSED ON THE BASIS OF SEWAGE SLUDGE. Journal of Agriculture and Environment, [S.l.], n. 1 (2), mar. 2017. ISSN 2564-890X. Available at: <http://jae.cifra.science/article/view/37>. Date accessed: 18 nov. 2017. doi: http://dx.doi.org/10.23649/jae.2017.1.2.3.
Section
Pollution
References
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