关键词: 赤泥, 多孔材料, 微生物, 苯酚

Abstract: In this study，a porous material was prepared from red mud (bauxite residue) and other industrial waste. The porous material was modified by acid，alkali or zirconium oxychloride and was loaded with pseudomonas putida to remove phenol in sewage. The strength of porous material nodulized at 1200 ℃ could meet the test requirements. Its porosity reached 80%，and pore size was controlled between 50 and 100 nm. Porous material modified by zirconium oxychloride had higher loading capacity for pseudomonas putida，than the porous material modified by acid or alkali and unmodified original red mud. The main factors that affected phenol removal were solution pH and initial phenol concentration. The optimum condition was solution pH at 5～6 and initial concentration of phenol at 40 mg/L. Removal rate could reach 80% under the optimum condition.

Key words: red mud, porous material, microbial, phenol