介质滤波器,也被称为机械过滤器(有一个人将呼吁石英砂过滤器媒体过滤器,因为石英砂颗粒大小是不同的,2 - 3种规格),机械过滤器,别名,实际上是相同的滤波器,在水处理过程中,是一种更常用的机械过滤设备,因为过滤材料价格低,环境保护、过滤效果的优点是好的,由此得到的石英砂过滤器在水处理中得到了充分的应用。
Media filter, also known as mechanical filter (one person will call for quartz sand filter media filter, because quartz sand particle size is different, 2-3 specifications), mechanical filter, alias, is actually the same filter, in the process of water treatment, it is the most commonly used mechanical filter equipment, because the price of filter material is low, the advantages of environmental protection and filtering effect are good The obtained quartz sand filter has been fully used in water treatment.
First of all, we start from the role of multimedia filter, which is mainly used to filter and intercept suspended solids, sediments, organics and other impurities in water. The filtering principle is mainly trapped by quartz sand, so after a period of multimedia filtering, there are many small particles in the gap between the sand, such as mud, organic matter and other impurities. If backwashing is not carried out, the impurities such as intercepted sediment in the filter tank can be accumulated. If the source water is affected, and the water pressure is reduced, and the filtration flow is reduced, not only precious energy (power of power and water pump) is wasted, but also the sewage quality is not up to the standard. Therefore, the backwashing of multi-media filter must be carried out after a period of time.
There are two kinds of backwashing methods for multimedia filter, one is air water backwashing, the other is water backwashing.
Air and water backwashing: the friction between bubbles and quartz sand filter material, and the friction between particles of quartz sand filter material, is the friction between quartz sand filter material and water. Four interactions maximize the backwash effect, so the quartz sand filter material after water washing can be used normally. Advantages: short backwashing time and less water consumption. Therefore, the recommended backwashing method of Shandong multi-media filter manufacturer is: soda water backwashing