Abstract: The micro-bubble catalytic ozonation process has been applied to the advanced treatment of wastewater from chemical industrial parks,using acid/alkali modified and Cu-loaded activated carbon as catalyst. The results show that after treated by this process,the effluent COD is reduced to less than 20 mg/L,luminescence inhibition rate decreased to -1.2%- -7.3%,B/C increased to 0.29-0.37,the wastewater bio-toxicity eliminated and wastewater biodegradability improved. Since the nitric acid modified and Cu-loaded activated carbon has stronger activity, the COD removing rate and removal loading can reach 70.8% and 0.478 kg/(m³·d),respectively,the ozone utilization rate is 97.5% and catalytic ozonation efficiency 0.554 mgCOD/mgO₃.

Key words: micro-bubble, catalytic ozonation, wastewater from chemical industrial parks, advanced treatment

摘要： 以酸/碱改性和Cu负载活性炭为催化剂，采用微气泡催化臭氧氧化深度处理化工园区废水。结果表明，经该工艺处理后，出水COD降至20 mg/L以下，发光抑制率降至-1.2%~-7.3%，B/C升至0.29~0.37，消除了废水生物毒性，并提高了废水可生化性。硝酸改性并负载Cu组分活性炭具有更强的催化活性，COD去除率和去除负荷分别可达70.8%和0.478 kg/（m³·d），臭氧利用率为97.5%，催化臭氧氧化反应效率为0.554 mgCOD/mgO₃。

关键词: 微气泡, 催化臭氧氧化, 化工园区废水, 深度处理

CLC Number: 

• X703.1