Mechanical filter and quartz sand filter

Many companies will mechanical filter and quartz sand filter, quartz sand filter is mechanical filter, actually otherwise.

mechanical filter is quartz sand filter, activated carbon filter, many media filters, manganese sand filter, filter, such as a general designation is through mechanical interception, adsorption to remove the sediment in the water, organic matter, colloid and other impurities. Within the quartz sand filter as the name suggests is quartz sand filter, so quartz sand filter is a kind of mechanical filter.

quartz sand filter choice of quartz sand particle size is according to the inlet water quality and water requirements to the selected, generally at the bottom of the quartz sand particles, the more the packing, the smaller the particle size, formation of the filter layer from bottom to top diameter reduced gradually. Many people think of quartz sand filter layer should be above the particle size is large, and the small, mistaken for grain big of quartz sand filter impurities, then particle size small, fine quartz sand filter impurities, actually otherwise, coarse sand cushion in the lower layer is mainly to improve water through sex, and the upper fine sand filtration are the main ones. Secondly, in the process of backwashing, coarse sand, also in the process of backwashing precipitation to the bottom in the first place.