Effect of EDTA and Tannic Acid on the Removal of Cd, Ni, Pb and Cu from Artificially Contaminated Soil by Althaea rosea Cavan.
In this study an ornamental plant of Althaea rosea Cavan was investigated for its potential use in the removal of Cd, Ni, Pb and Cu from an artificially contaminated soil. Effect of two different chelating agents on the removal has also been studied by using EDTA (ethylenediaminetetracetic acid) and TA (tannic acid). Both EDTA and TA have led to higher heavy metal concentration in shoots and leaves compared to control plants. However EDTA is generally known as an effective agent in metal solubilisation of soil, in this study, TA was found more effective to induce metal accumulation in Althaea rosea Cavan under the studied conditions. In addition to this, EDTA is toxic to some species and restraining the growth of the plants. The higher BCF (Bio Concentration Factor) and TF (Translocation Factor) values obtained from stems and leaves by the effects of the chemical enhancers (EDTA and TA) show that Althaea rosea Cavan is a hyper accumulator for the studied metals and may be cultivated to clean the contaminated soils.
a Department of Chemistry, Faculty of Arts and Science , Ondokuz Mayıs University , Kurupelit , Samsun , Turkey.
Seydahmet
S
Cay
Ahmet
A
Uyanik
Mehmet Soner
MS
Engin
Hamdi Guray
HG
Kutbay
D031583:Althaea / Q000737:chemistry / Q000378:metabolism*; D001673:Biodegradation, Environmental; D002104:Cadmium / Q000737:chemistry / Q000378:metabolism*; D002614:Chelating Agents / Q000737:chemistry / Q000378:metabolism; D003300:Copper / Q000737:chemistry / Q000378:metabolism*; D004492:Edetic Acid / Q000737:chemistry / Q000378:metabolism*; D052918:Environmental Restoration and Remediation / Q000295:instrumentation / Q000379:methods*; D007854:Lead / Q000737:chemistry / Q000378:metabolism*; D009532:Nickel / Q000737:chemistry / Q000378:metabolism*; D012989:Soil Pollutants / Q000737:chemistry / Q000378:metabolism*; D013634:Tannins / Q000737:chemistry / Q000378:metabolism
D002614:Chelating Agents; D012989:Soil Pollutants; D013634:Tannins; D002104:Cadmium; D007854:Lead; D003300:Copper; D009532:Nickel; D004492:Edetic Acid
Althaea rosea Cavan; EDTA; ornamental plant; phytoremediation; tannic acid; trace metals