Research on preparation and organic wastewater treatment of pomelo peel biomass adsorbent

This paper uses grapefruit peel as raw material, carbonized at 300°C, 400°C, 500°C, and 600°C, respectively, to prepare biochar at the corresponding temperature, and select the optimal carbonization temperature through adsorption degradation experiments. Then the biomass charcoal prepared at the optimal carbonization temperature was modified by 1 mol/L hydrochloric acid and 2.5 mol/L sodium hydroxide solution, and the modified grapefruit skin biomass was mainly studied by hydrochloric acid modified biomass charcoal. The optimum adsorption conditions of carbon for organic wastewater were studied. The methylene blue and phenol-containing wastewater were selected respectively. The adsorption and adsorption laws of grapefruit skin biochar on two organic wastewaters were tested.