Ability of Eichhornia crassipes L. to absorb nickel from polluted water flowing into the Kufa River

The current study was conducted on the Eichhornia crassipes plant after collecting it, from Ghazi River, one of water channels branching Najaf Sea in city Al-Ashraf to reveal about its ability absorb existing Nickel contaminated Kufa River. dosed weekly with 7.1 mg/L for 21 days acclimatization laboratory using plastic basins (10 L capacity) equal dimensions, and accumulated inside tissues when compared control where, concentration roots 0.59 mg/kg leaves 0.32 mg/kg.As percentage removal mineral water, results showed E.crassipes 99.4% total water. Then, rate gradually decreased at end experiment as a result continuous bioaccumulation within until absorption 94.4% concentration. This leads us hypothesis that has high capacity first decreases element continues accumulate plant.