UF处理生活污水过程中的膜污染和膜清洗研究

Study on membrane fouling and cleaning in ultrafiltration treatment for the domestic wastewater

采用多种化学清洗剂对UF处理生活污水过程中被污染的UF膜进行了清洗研究,初步分析了产生膜污染的因素.结果表明,在被污染的膜上,有机物和无机盐垢相互覆盖,用次氯酸钠和酸交替清洗膜可以获得较好的清洗效果.

The chemical cleaning of UF membrane in treatment for the domestic wastewater was studied.The effects on membrane fouling was analysed.The results showed that the organic and inorganic matters were covered each other in the fouled membrane,the cleaning with NaClO and acid in turn had good effect.