酸性氧化电位水制备工艺的优化

OPTIMIZATION OF TECHNOLOGY FOR PREPARING ELECTROLYZED OXIDIZING WATER

目的研究酸性氧化电位水产生的影响因素,探讨最佳生产条件。方法采用多因素正交试验方法设计影响因素,探讨不同生产条件对制备酸性氧化电位水水质指标的影响。结果电解质浓度、电压和电解时间对酸性氧化电位水的pH值影响比较明显;电解质浓度和电压对酸性氧化电位水的氧化还原电位有明显影响。各种生产条件因素对酸性氧化电位水中的总氧化物含量影响均不明显。根据试验结果制定的酸性氧化电位水的最佳生产条件为用氯化钠2.0 g/L,电压20 V,极间距为25 mm,电解时间3 min;制备出的水质指标为pH值2.34,ORP值1169 mV,TOSs值为99.94 mg/L。结论采用正交试验得出的最佳生产工艺条件,生产出的酸性氧化电位水各种指标均符合设计要求。

Objective To study the factors influencing production of electrolyzed oxidizing water （EOW） and to explore the optimal production condition. Method Multifactor orthoganal test method was used to design the influential factors in order to observe the influence of different production conditions on indexes of preparing EOW. Results The electrolyte concentration, voltage and time of electrolysis had significant influence on pH value of EOW, and the electrolyte concentration and voltage had significant influence on oxidation - reduction potential （ORP） of EOW. The various factors of production condition had no significant influence on total oxides （TOSs） content in EOW. The optimal production conditions of EOW designed according to the test results were sodium chloride 2.0 g/L, voltage 20 V, interelectrode distance 25 mm and electrolysis time 3 min. The indexes of the water prepared were pH value 2.34, ORP value 1169 mV, TOSs value 99.94 mg/L. Conclusions The optimal conditions of production technology obtained using orthogonal tests and various indexes of EOW produced fulfil the requirements of design.