响应面法优化水力空化强化二氧化氯降解罗丹明B研究

利用响应面法的中心组合设计方法对水力空化强化二氧化氯降解罗丹明B实验进行设计,建立了二次多项式模型,并且模型拟合性较好。对实验条件进行优化,结果表明最佳实验条件为:入口压力为0.44 MPa,反应时间为100 min,二氧化氯浓度为33.74 mg/L。在最佳条件下,罗丹明B的实际降解率为92.2%,与预测值仅差0.3%。

RESPONSE SURFACE METHODOLOGY TO OPTIMIZE THE EXPERIMENT OF DEGRADATION OF RHODAMINE B BY HYDRODYNAMIC CAVITATION ENHANCED CHLORINE DIOXIDE OXIDATION

Central composite design (CCD) was used for the experiment of rhodamine B degraded by hydrodynamic cavitation (HC) with chlorine dioxide oxidation (ClO2).A quadratic polynomial equation was constructed and the model fitted well.Furthermore,response surface methodology (RSM) was employed to optimize the experiment.A result showed that the optimum conditions were determined to be inlet pressure value of 0.44 MPa,reaction time of 100 minutes and ClO2 dosage of 33.74 mg/L.The actual removal rate of rhodamine B was 92.2％ under the optimum conditions,and the deviation was only 0.3％ between actual value and predicted value.