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该文为了得到生产微酸性电生功能水最好的操作条件,采用4因素Central-Composite中心组合设计,研究了不同生产条件(电压、盐酸溶液的流量、盐酸溶液的质量分数和原水的流量)对微酸性电生功能水的有效氯浓度、pH值、氧化还原电位和电导率的影响。试验结果表明,电压、盐酸溶液的质量分数和原水流量对有效氯浓度影响极显著(p<0.01);盐酸溶液的流量、盐酸溶液的质量分数和原水流量对微酸性电生功能水的pH值影响极显著(p<0.01);盐酸溶液的流量、盐酸溶液的质量分数和原水流量对微酸性电生功能水的氧化还原电位和电导率影响极显著(p<0.01)。这些差异通过线性和二次性模型来描述。有效氯浓度、pH值、氧化还原电位和电导率的决定系数都大于0.95。生产微酸性电生功能水最佳的工作参数是电压4.4V、盐酸溶液的流量1.04L/h、盐酸溶液的质量分数2.8%、原水的流量210L/h。生产的微酸性电生功能水的指标为有效氯浓度(32±2)mg/L、pH值6.40±0.1、氧化还原电位(920±10)mV和电导率(1130±30)μS/cm。结果表明此方法可以得到生产微酸性电生功能水的最优的操作条件。
In order to obtain the best operating conditions for the production of slightly acidic electrolyzed water, a four-factor Central-Composite central composite design was used to study the effects of different production conditions (voltage, hydrochloric acid solution flow rate, hydrochloric acid solution mass fraction and raw water flow rate) Effect on the effective chlorine concentration, pH value, redox potential and conductivity of slightly acidic electrolyzed water. The results showed that the voltage, the mass fraction of hydrochloric acid solution and the flow of raw water had a significant effect on the available chlorine concentration (p <0.01). The flow rate of hydrochloric acid solution, the mass fraction of hydrochloric acid solution, (P <0.01). The effects of HCl solution flow rate, hydrochloric acid solution mass fraction and raw water flux on the redox potential and conductivity of slightly acidic electrolyzed water were significant (p <0.01). These differences are described by linear and quadratic models. The determinants of available chlorine concentration, pH, redox potential and conductivity are all greater than 0.95. The production of slightly acidic electrolyzed functional water is the best working parameters voltage 4.4V, hydrochloric acid solution flow 1.04L / h, hydrochloric acid solution mass fraction 2.8%, raw water flow 210L / h. The indicators for the production of slightly acidic electrolyzed water were available chlorine concentration (32 ± 2) mg / L, pH value of 6.40 ± 0.1, redox potential of 920 ± 10 mV and conductivity of 1130 ± 30 μS / cm. The results show that this method can be obtained for the production of slightly acidic electrolyzed water, the optimal operating conditions.