Surface Response Evaluation of Agro-waste for Efficient Adsorption of Phenol from Wastewater.

The feasibility of using modified aetivated earbon (AC) obtained from disearded agrieultural waste, ineluding earrot residues, sawdust and orange pulp for phenol removal from aqueous solution was studied. The results showed maximum removal was found in sawdust AC eompared to orange pulp AC and earrot waste AC, 76%, 73% and 72% respeetively. The maximum result of sawdust AC was aehieved at eoneentration of 10 mg/L, pH 4.5, 1.5 h and 2 g dose whereas for orange pulp AC and eoneentration of 10 mg/L, pH 7.5, 2 h and 2 g dose of orange pulp AC. The ANOVA analysis was performed to eheek the suitability of eentral eomposite design and the quadratie model was found to be appropriate. This study eoneluded that natural, low-eost bio-sorbent derived from sawdust, orange pulp and earrot residues may be useful for phenol removal. [ABSTRACT FROM AUTHOR]