Removal of Lead Pollution from Treatment Sludge by Chelate Supported Phytoremediation Method Using Some Agricultural Plants

Phytoremediation is a method that plants are used to eliminate the pollutants in soil, underground, surface water and even in weather. In this study, the removal of Pb element from treatment sludge by phytoremediation method using Allium cepa, Chenopodium quinoa and Brassica napus species was investigated. In addition, complex builder chelate was added to increase the phytoremediation capacity, and changes in the element removal performance of the plants were observed. EDTA, humic acid, 1-10 phenanthroline, nitro, pridin were used as chelate support in heavy metal removal. When Tolerance Index (TI) values were examined, it was determined that the addition of chelate caused a change in the growth of plants and dry weight. In the study, the amount of heavy metal deposition in the root, stem and leaves of the plants was investigated and it was determined that accumulation in the roots of the species was higher. According to the results obtained in the study, It was determined that the accumulation in the roots of the species is more.Especially in the test pots using humic acid, EDTA and Nitro chelate, the accumulation was higher. When TF values were examined, A. cepa>C. quinoa>B. napus in EDTA, the Humic acid, the pyridine and the 1-10 Phenanthroline chelate and C. quinoa>A. cepa>B. napus in nitro chelation were found. The most effective accumulation occurred in A.cepa and C. quinoa species.It was determined that B. napus, known as the hyperaccumulator, did not show its property when nitro, pyridine and 1-10 phenanthroline chelates were added.It was determined that accumulation of Pb in the roots and transportation of the element to the upper organs by the Species increases with chelate addition. Accordingly, it is revealed that humic acid, EDTA and nitro can be used to increase heavy metal intake.As a result, in order to use the augmentation mud in agriculture, it needs to be purified from the substances that can damage the living things. Chelate assisted phytoremediation method can be used to remove heavy metal contamination and increase heavy metal uptake from the soil