响应面法优化过氧化氢强化水力空化去除双酚A

Optimization of bisphenol A removal by hydrodynamic cavitation with hydrogen peroxide with response surface methodology

利用响应面法(RSM)对过氧化氢强化水力空化(HC/H2O2)去除双酚A(BPA)工艺进行设计,建立拟合二次多项式回归模型。结果表明,多项式模型的3个因素对BPA去除效果的影响顺序:入口压力>过氧化氢浓度>空化时间。HC/H2O2技术去除BPA的优化条件:入口压力为0.31 MPa,过氧化氢质量浓度为10.31 mg/L,空化时间为138.81 min。在此条件下BPA去除率的预测值为36.36%,根据实际情况修正优化参数与预测值仅相差0.12%,说明回归方程拟合性较好,模型得到的工艺参数可靠。

Response surface methodology(RSM) is used to design a process for the removal of bisphenol A by hydrodynamic cavitation with hydrogen peroxide(HC/H2O2), and the regression model of fitting quadratic polynomial is established. The results show the degree of influence of three factors on the removal effect of BPA:inlet pressure>hydrogen peroxide concentration>cavitation time. The optimized conditions for removing BPA by HC/H2O2 technology are:inlet pressure 0.31 MPa,hydrogen peroxide mass concentration 10.31 mg/L and cavitation time 138.81 min. Under this condition,the predicted value of BPA removal rate is 36.36%. According to the actual situation,the optimized parameters are only 0.12% different from the predicted values,which indicate that the regression equation has good fitting performance and the process parameters obtained by the model are reliable.