Agricultural solid waste for the removal of organics: adsorption of phenol form water and wastewater by palm seed coat activated carbon

摘要

Adsorption studies for phenol removal from aqueous solution on activated palm seed coat carbon (PSCC) were carried out under varying experimental conditions of contact time, phenol concentration, adsorbent dose and pH. Adsorption equilibrium was reached within 3 h for phenolic concentrations 10-60 mg l~-1. Kinetics of adsorption obeyed a first order rate equation. The percent removal remained constant over the pH range 4-9 for a phenolic concentration of 25 mg l~-1. The equilibrium data could be described well by the Freundlich isotherm equation.