Phenol Removal from Water with Carbons: An Experimental Investigation (original) (raw)

2020, Tecnica Italiana-Italian Journal of Engineering Science

The aim of this work is to assess the performances of several carbons towards phenol removal from wastewater. Two commercial activated carbons, with BET surface area of 800 (SP800) and 1000 m2/g (SP1000) and two bio-char samples produced via both pyrolysis (SPBCP) and gasification (SPBCG) of biomass, respectively, were used for this purpose. A phenol aqueous solution with initial concentration of 5 g/l was adopted as model solution. Adsorption tests were carried out at different time (up to 4 hours) and different solid amount (0.5-4 g of carbon) with the scope to study both kinetics and thermodynamics of the process. Obtained data were fitted with literature adsorption models (e.g. Langmiur, Tempkin, and Freundlich) aiming to estimate the adsorption capacities of the investigated materials. The adsorption capacity follows the order SP1000>SP800>>SPBCP>SPBCG.

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