TREATING PHENOL IN WASTEWATER BY ACTIVATED CHARCOAL

Abstract

Phenols are generated in the wastewater of industrial processes. Phenol is extremely poisonous when entering the human body through the mouth. This study was conducted to determine the parameters of activated charcoal from coconut charcoal produced by Tam Dinh-Phu Yen Company and the ability of coconut charcoal in wastewater containing phenol. The results showed that the specific surface area was 891,7021 m²/g and the surface area of the micropores was 848,3714 m²/g. The moisture was less than 8 percent; the ash was from 2.38% to 4.7% and the particle size from 2.38% to 4.7% accounted for 97.2%. The highest emptiness at grain size was 1.25-2mm, accounting for 52.77 percent with a small surface area of 848,3714 m²/g. The optimum efficiency of activated charcoal achieved best at pH = 5, the reaction time of 150 minutes, adsorption volume of 1-2.5 g; The processing efficiency was from 93.01% to 98.00% with the influent of 20-52mg/l.