Abstract
Phytoremediation and adsorption are both important approaches for the removal of organic contaminants in water. In this study, cetyltrimethylammonium saturated bentonite as an effective adsorbent and ryegrass as a model plant, were used simultaneously to remove organic contaminants in a hydroponic system. Results showed that removal efficiency of phenol (100mg/L) by organobentonite and ryegrass (OB+RY) reached 92.5% in 6days, followed by ryegrass (RY, 88.5%) and organobentonite only (OB, 15.9%). The removal efficiency of aniline (100mg/L) by organobentonite and ryegrass (OB+RY) reached 91.9% in 9days, followed by ryegrass only (RY, 83.9%), and organobentonite only (OB, 63.0%). The combined remediation by organobentonites and the hydroponic ryegrass was an efficient and environmental friendly method for organic chemicals polluted wastewater.
Published Version
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