Comparative study between activated carbon and biochar for phenol removal from aqueous solution

Abstract

Removal of phenol from wastewater using local biochar (BC) was investigated, while using activated carbon (AC) as a reference material. The main parameters affecting the sorption process were initial concentration, contact time, pH, and temperature. Statistical analysis of the results showed that the maximum removal percent when using AC and BC were 95% and 55%, respectively. Experimental data showed that the removal of phenol has fast kinetics and reached equilibrium within 5 minutes. The Langmuir and Freundlich isotherm models were applied to fit the adsorption experimental data. Pseudo-first order and pseudo-second order kinetic models were employed.

Adsorption of the non-steroidal anti-inflammatory drug (ibuprofen) onto biochar and magnetic biochar prepared from chrysanthemum waste of the beverage industry

“…For example, the maximum removal of phenol from aqueous solution with biochar and activated carbon was 55% and 95%, respectively. 4 Manfrin et al developed biochar and activated carbon from cigarette waste and applied them to the adsorption of Pb 2+ . The maximum adsorption capacity was 71.42 mg g −1 for activated carbon, while biochar was observed to be significantly lower, only enabling a recovery of 23.69 mg g −1 .…”