Adsorption characteristics study on crystal violet dye by alkali modified kitchen waste
Kitchen waste biochar and kitchen waste biochar were prepared by one-step pyrolysis and KOH co-pyrolysis using kitchen waste as raw biomass materials,and the adsorption properties of the two materials on crystal violet dye were compared.The results show that for crystal violet solution with initial mass concentration of 50 mg/L,biochar dosage of 1 g/L and pH of 9.0,the adsorption rate of NKB and MKB can reach 64.22％and 95.06％respectively.The adsorption processes of the two kinds of biochar were consistent with the pseudo-second-order kinetic model and Freundlich model.The maximum adsorption capacity of the activated kitchen biochar was 196.08 mg/g,which was significantly higher than that of the original biochar.
万方数据
维普
