轻质滤料滤池过滤系统的研究与应用

A Technical Research and Application of the Floating Media Filter

传统的砂滤池虽然成功地被应用到了净水以及污水处理领域中。但是,砂滤池本身还有很多不足之处,诸如:有限的持续过滤能力以及反冲洗能耗高等。采用轻质滤料滤池和砂滤池组成的直接过滤系统就能够克服这些不足。试验研究表明:轻质下向流滤料滤池是性能良好的预处理单元,在去除污染物的同时本身的水头损失却很小。

Conventional granular filtration, although successfully used in water treatment and tertiary wastewater treatment, has some disadvantages such as limited retention capacity and high energy requirement for backwashing. The application of light media filterer can overcomes these shortcomings, especially when direct filtration process is used in treatment plants. A laboratory study carried out indicated that the light media filter with downflow arrangement was a good pretreatment unit to reduce the pollutant load while the head loss was negligible. 