【摘要】 采用催化湿式氧化(CWAO)技术处理陕北某兰炭生产企业的兰炭废水,考察了反应温度、氧气分压、进水pH及催化剂投加量等对兰炭废水处理效果的影响。结果表明:将自制CuO-MnO2-CeO2/γ-Al2O3催化剂用于CWAO处理兰炭废水时,随着反应温度、氧气分压、催化剂投加量的增大,CODcr去除率增大;在实验条件下,催化剂的最佳投加量为10g/L,最佳进水pH值=8;T=150℃、P(O2)=1.6MPa、反应120min后CODcr去除率可从湿式氧化的17.3%提高到77.8%。更多还原

【Abstract】 Treating semi-coke wastewater from Shanbei semi-coke enterprise with catalytic wet air oxidation technology.The effects of reaction temperature,oxygen pressure,pH value,catalyst dosage on semi-coke wastewater treatment effect were evaluated.The results showed that with the reaction temperature,oxygen pressure,catalyst amount increasing,CODcr removal rate rose.Under the experimental conditions,the optimal catalyst dosage was 10g/L,pH = 8,the CODcr removal rate could get 77.8% from 17.3% with wet air oxidation technology when the temperature was 150℃,oxygen pressure was 1.6MPa,reaction time was 120min.更多还原