Author: Xudayberganov, Islom Aniyozovich

Annotation: This article provides brief information about the adsorption method of wastewater treatment. Cotton husks with convenient functional groups similar in chemical composition to the mentioned biosorbents were used. Elemental analysis of the composition of samples of mechanically cleaned cotton stalk husk and activated cotton stalk husk was carried out. The physicochemical properties of the obtained biosorbent were studied. The maximum absorption of Ni(II) and Cu(II) ions of the biosorbent from the artificial solution under static conditions was found to be 52.92 mg/g and 114.86 mg/g, respectively. The effect of solution concentration, sorption duration and temperature on the sorption process was studied. The amount of metal ions absorbed by the biosorbent was calculated based on the dependence graph of the initial and post-sorption refractive index of the solutions on the UV-spectrophotometer and the concentration of the solution.

Keywords: biosorbent, cotton, sorption, nickel(II) ion, copper(II) ion, cotton stalk, spectrophotometer.

Pages in journal: 160 - 166