In order to explore the effects of persimmon leaf on the absorption of dye wastewater, simulated wastewater of methylene blue was used as a research object, and the absorption effects of the persimmon leaf was investigated on the methylene blue in aqueous solution in various conditions including solution pH, adsorbent dose, salt ionic strength, initial concentration of methylene blue and temperature. The shaking time, Langm dlich isotherm models were employed to discuss the adsorption behavior. The results indicated that the data were perfectly represented by uir, Freun- equilibrium Langmuir, ...