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目的研究连续式酸性氧化电位水制备工艺及其影响因素。方法采用多因素正交设计试验方法,研究各工艺参数对生产的酸性氧化电位水理化指标的影响,确定最佳工艺条件。结果研究结果证明,电解液中氯化钠浓度、电解电压、进水流量是影响酸性氧化电位水理化性能的主要因素。确定酸性氧化电位水连续式装置最佳工艺参数为:氯化钠溶液浓度700 mg/L,电解电压28V,进水流量42 L/h。在最佳工艺条件下制备的酸性氧化电位水有效氯含量为54.16 mg/L、氧化还原电位为1 171 mV、pH值为2.61,单位能耗为52.39 kW.h/kg。结论研究确定的最佳工艺条件下生产的酸性氧化电位水理化指标和杀菌效果均符合要求,产水性能稳定,能耗低。
Objective To study the preparation technology and influencing factors of continuous acid oxidation potential water. Methods The orthogonal experimental design was adopted to study the influence of various process parameters on the hydration index of acid oxidation potential and to determine the optimum technological conditions. Results The results show that the concentration of sodium chloride in the electrolyte solution, electrolysis voltage, influent flow rate is the main factor that affects the physicochemical properties of acid oxidation potential. The optimum process parameters for the determination of acid oxidation potential water continuous device were as follows: sodium chloride solution concentration 700 mg / L, electrolytic voltage 28V, influent flow 42 L / h. The results showed that the effective chlorine content of acid oxidation potential water prepared under the optimum conditions was 54.16 mg / L, redox potential was 1 171 mV, pH value was 2.61 and unit energy consumption was 52.39 kW.h / kg. Conclusions The physico-chemical indexes and bactericidal effects of acid oxidation potentials produced under the best technological conditions determined by the research meet the requirements, and have stable water-producing performance and low energy consumption.