超声波-曝气协同高锰酸钾处理微污染水

目的探索超声波、曝气对高锰酸钾协同氧化水中有机物的作用和协同混凝作用.方法采用4种方法:超声波曝气协同高锰酸钾作用、单纯超声波作用、单纯高锰酸钾作用、超声波协同高锰酸钾作用,进行氧化、混凝沉淀的对比静态试验处理低温微污染水.结果超声波曝气协同高锰酸钾氧化和混凝去除有机物效果最好,氧化去除率16.90%,氧化混凝总去除率达48.82%.以浊度和色度去除效果表示的助凝效果,超声波曝气协同高锰酸钾的作用低于高锰酸钾单独氧化.结论超声波曝气协同高锰酸钾氧化处理微污染水,可有效提高有机物去除效果.与单纯混凝比较,超声波曝气协同高锰酸钾氧化处理,可有效提高浊度和色度的去除效果,但与单纯用高锰酸钾氧化比较,由于超声波作用削弱了高锰酸钾的协同混凝作用,浊度和色度的去除效果有所下降.

Test of Potassium Permanganate Cooperating with Ultrasonic and Air to Treat Micro-polluted Water of Low Temperature

The paper uses potassium permanganate as oxidation and coagulation cooperating with ultrasonic and air to treat micro-polluted water of low temperature.There are 4 methods,including potassium permanganate cooperating with ultrasonic and air(PCUA),ultrasonic,potassium permanganate and permanganate cooperating with ultrasonic.The test indicates that oxidizing and coagulating result of PCUA is best,which can remove organic matter in water,COD_(Mn),by 16.9% by oxidation,and by 48.82% by oxidation and coagulation.Assist-coagulating result of PCUA for turbid and color is a little bit lower than potassium permanganate alone.The former rate for the turbid is 74.57%,for the color is 64.1%;the latter rate for the turbid is 86.67%,for the color is 76.19%.So PCUA can treat COD_(Mn),the organic matter,from water.