活性炭去除饮用水突发性污染桔霉素的研究

发布时间：2018-08-13 18:55

【摘要】：本文研究不同浓度桔霉素对饮用水p H值、折射率、电导率、旋光性变化的影响以及探讨活性炭对饮用水中可能发生的突发性污染物桔霉素的去除工艺效果,为饮用水突发安全事件应急处理提供技术支撑。桔霉素在1 mg/L~50 mg/L范围内,饮用水p H显著下降,折射率呈线性增大。桔霉素在0.1 mg/L~10 mg/L范围内,饮用水电导率显著增强,但桔霉素没有旋光性。桔霉素对p H、折射率、电导率影响情况可作为饮用水中桔霉素污染与否的参考指标。两种形态的活性炭比较试验结果,粉末活性炭去除桔霉素的效果优于颗粒活性炭。粉末活性炭去除饮用水中桔霉素突发性污染的最优工艺参数为:活性炭添加量0.8 g/L,时间5 min,去除率达到109.86%。粉末活性炭去除桔霉素快速高效,可用于饮用水桔霉素突发性污染事件的快速应急处理。
[Abstract]:In this paper, the effects of different concentrations of citrinin on pH, refractive index, conductivity and optical rotation of drinking water were studied, and the removal effect of activated carbon on citrinin, which may occur in drinking water, was discussed. Provide technical support for emergency treatment of drinking water emergency. In the range of 1 mg/L~50 mg/L, the pH of drinking water decreased significantly, and the refractive index of drinking water increased linearly. In the range of 0. 1 mg/L~10 mg/L, the conductivity of citrinin in drinking water was significantly increased, but citrinin had no optical rotation. The effect of citrinin on pH, refractive index and conductivity can be used as a reference index for citrinin contamination in drinking water. The results showed that the removal of citrinin by powdered activated carbon was better than that of granular activated carbon. The optimum technological parameters for removing citrinin from drinking water by powdered activated carbon were as follows: the dosage of activated carbon was 0.8 g / L, the time was 5 min, and the removal rate was 109.86%. The removal of citrinin from drinking water by powdered activated carbon is rapid and efficient, and can be used to deal with the sudden pollution of citrinin in drinking water.
【作者单位】：暨南大学理工学院食品科学与工程系;
【基金】：广东省食品安全卫生应急技术研究专项([2011]733)
【分类号】：TQ424.1;R123.6

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