The investigation of phytoremediation of chromium, nickel and zinc by offensive plant Chrozophora tinctoria L. from soils surrounding Arak aluminum industrial complex
Subject Areas : Crop Production Research
1 - استادیار گروه مهندسی محیط زیست، دانشکده فنی و مهندسی، واحد تهران مرکزی، دانشگاه آزاد اسلامی، تهران، ایران
Keywords: phytoremediation, Heavy metals, Chrozophora tinctoria L, Iralko,
Abstract :
During past centuries and industrial activities of human that have been include of agriculture,military and disposal of industrial wastes caused that wide region specially, developed countriesface with high concentrations of heavy metals and pollutants. Moreover, negative effects onecosystems and other natural regions, these regions created too many risks for human healthbecause of food pollution by usage of agricultural productions and drinking water. The aim of thisresearch, discussion about phytoremediation with use of local techniques and those potentials is asa corrective technique that from natural capability of biotic plants use for removal and purificationof pollutant components of environment. This research was done as completely randomized blocksdesign with 3 replications during 2011for evaluation of efficiency amount and amplitude of usageof herbal exploitation method by offensive plant Chrozophora tinctoria for purification of aroundsolis of Iralko complex. At first Zn, Ni and Cr elements measured in soil, then in the controltreatments, 2.5, 5 and 10 fold of sample mean concentration, the amount of uptake and storage indifferent plant organs were investigated. The results showed that the highest amount of Zn(61.63%) and Chromium (67.33%) were found in leaf and stem, respectively. According to theresults, it can be stated that Chrozophora tinctoria have an effective role in the removal of Zn andCr in the complex surrounding soils.
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