Review on Removal of Phenol from Wastewater Using Low Cost Adsorbent I
Phenol is a major pollutant in the wastewater because of its presence in the effluent of petroleum refining, coal conversion, plastics, textiles, iron and steel manufacturing as well as pulp and paper manufacturing. It is very important to remove phenol from contaminated water before discharge into any natural water because of their toxicity to aquatic organisms. It has severe effect on human being, both short term and long term. The methods such as adsorption, polymerization, electrocoagulation, extraction, photodecomposition, advanced oxidation and ion exchange are used for removal of phenol from waste water. Among them, physical adsorption method is generally considered to be the best, effective, low cost and most frequently used method for the removal of phenolic pollutions. This method is suitable for phenol removal can be selected based on availability of the material, extent of separation required and properties of phenolic effluent. Locally available sawdust, easily and abundantly available material is tested experimentally as an adsorbent, after carbonization, for the removal of phenol from industrial waste waters for a safe disposal. The experiments are performed batch wise to remove phenol from synthesized aqueous solutions. The aim of the present work is to investigate the capability of sawdust used as an adsorbent for removal of phenol from wastewater and to study the effects of initial phenol concentration, adsorbent dosage, pH value and contact time on the adsorption process, then workout optimum conditions for removal. The efficiency of adsorbents is described and correlated with the usual Langmuir and Freundlich isotherm equations. Index TermAdsorption, Langmuir and Freundlich, Phenol, Removal. Sonawane B. K, PG Student, Department of Civil Engineering, SRES COE Kopargaon, Savatribai Phule Pune University,Pune, Maharashtra, India. Korake S. R, Asst. Professor, Department of Civil Engineering, SRES COE Kopargaon, Dist. Ahmednagar, India.