高锰酸钾与二氧化氯预氧化除藻试验研究

Research on Enhanced-coagulation with Potassium Permanganate and Chlorine Dioxide for Algae Removal

以水华鱼腥藻和斜生栅藻为主要研究对象,就高锰酸钾和二氧化氯强化混凝除藻效果进行了对比研究。试验结果表明,对于高含藻水,采用高锰酸钾和二氧化氯氧化均能获得较高的除藻率。在本试验条件下,高锰酸钾和二氧化氯氧化的最佳接触时间分别为1．0-1．5h和10min。此外,高锰酸钾和二氧化氯氧化除藻率均随着pH值的增大而减小,其中,高锰酸钾受pH值的影响相对较小。

Taking the anabaena flos-aquae and scenedesmus obiquus as the main objectives, this paper studied theeffectiveness of enhanced-coagulation with potassium permanganate（KMnO4） and chlorine dioxide（ClO2） for algae realoval.Results showed that high removal efficiency could be got with KMnO4 and ClO2 oxidation on high concentration algaeremoval, the optimum oxidation duration is 1.0h-1.5h for KMnO4 and 10min for ClO2, the removal effieienies of bothchemicals are decreased with the pH value increased, but the influence on KMnO4 is comparatively little.