significant environmental concern. Its removal is achieved through various methods, among
which adsorption is an efficient and economically viable option. This study reports the
development of activated biochar (EABC) from Eucalyptus wood pyrolytic biochar (EPBC) to
remove phenols from petroleum refinery wastewater. The best activation strategy involved
ball-milling of KOH and EPBC in the ratio 3: 1, followed by annealing at 800° C under an N 2 …