Activated carbons for phenols removal from wastewaters

Abstract

Different methods of phenolic wastewaters treatment and especially sorption process are discussed. Several parameters of sorption and their influence on technological systems are analysed. Specific surfaces, pores volumes, size of grains, shipping weights and mechanical resistances to abrasion and crushing for some carbons of various european firms are determined. Sorptive kinetics and sorptive capacity studies are carried out for four phenol concentrations: 1, 10, 100 and 1000 mg/dm³. A ten—class classification of carbons is proposed with respect to their quality and usability for removal of different concentrations of phenol from wastewater. The main parameters important in process modelling, installation design and preparation of new sorts of activated carbons are discussed.