Adsorptive removal of 2-chlorophenol by low-cost coir pith carbon.
Adsorption of 2-chlorophenol (2-CP) by coir pith carbon was carried out by varying the parameters such as agitation time, 2-CP concentration, adsorbent dose, pH and temperature. Adsorption equilibrium reached at 40, 60, 80 and 100 min for 2-CP concentration of 10, 20, 30 and 40 mg/l, respectively. Adsorption followed second-order kinetics. The adsorption equilibrium data obeyed Freundlich isotherm. Acidic pH was favorable for the adsorption of 2-CP. Desorption studies showed that chemisorption plays a major role in the adsorption process.
Namasivayam
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C
Environmental Chemistry Laboratory, Department of Environmental Sciences, Bharathiar University, Coimbatore 641046, Tamil Nadu, India. cnamasi@vsnl.com
Kavitha
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D
D000327:Adsorption; D000383:Agriculture; D002733:Chlorophenols / Q000493:pharmacokinetics*; D003059:Cocos / Q000737:chemistry*; D005240:Feasibility Studies; D007220:Industrial Waste; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*; D018508:Water Purification / Q000379:methods*
D002733:Chlorophenols; D007220:Industrial Waste; D014874:Water Pollutants, Chemical; C030683:2-chlorophenol