Removal of Leishman s stain from Aqueous Solution by Using Natural Nile Rose Plant (Eichhornia crassipes)

This study investigate the ability of aquatic plant Eichhornia crassipes use as adsorbent material to remove Leshman s stain from aqueous solution.Batch systems were conducted to obtain optimum removal conditions, such as activation methods (acid and thermal), concentration of dye, adsorbent dosage and contacted time. This study has shown increasing in the removal percentage of dye, for both used activation methods (acidic and thermal 98.3% and 93.3 respectively) comparing with the sample non activation adsorbents (88.7%) with progress contact time. The highest removal efficiency was recorded at 40 min contact time (98.4%). The removal Leshman s stain percentage decreased (98% - 89% - 67%), as the initial Leshman s stain concentration increased (10 - 40 – 60 ppm) respectively. The highest removal efficiency was (98.8%) at (6 gl) of adsorbent dose.

Keywords:

Eichhornia crassipes , Leshman s stain , adsorbent material