Abstract:from the printing and dyeing wastewater. The change of organic matter species and concentrations beforeand after absorption was studied. Physicochemical properties of ACoke and its influence on adsorptioncharacteristics were investigated. The results showed that the content of organics (aromatic hydrocarbonsand alkane derivatives) decreased from 89.1% to 30.5% after absorption by ACoke. The content of or⁃ganic matter only decreased from 89.1% to 87.7% after absorption by activated carbon (AC). Typesand contents of surface functional groups of ACoke were similar to those of AC,and contributed indis⁃tinctively to the adsorption characteristics. The abundant mesoporous structure had a significantinfluence on the adsorption characteristics of ACoke. The specific surface area of mesoporous structureof ACoke was 114.111 m2/g,which accounted for 28.6% of its total specific surface area and was 2.7times that of AC. Close-