Quartz sand as a kind of industrial raw materials for a long time, with polyacrylamide, polyaluminum chloride and other products in the application of water purification industry is indispensable.

      Quartz sand as a filter material application, is combined with the filter container, used to intercept suspended solids colloidal particles and other impurities in water, so as to play the role of filtration.

      Quartz sand filter material can be mainly divided into the following categories:

      1 ordinary quartz sand filter material: mainly used in sewage treatment, with three or five years is no problem, as long as the quartz sand loss is prevented, it does not matter if it is polluted, because in sewage treatment, sludge can be aerobic or anaerobic respiration, the pollutants in sewage degradation.

      2 refined quartz sand filter material: used in pure water treatment, in the sand filter, generally 2 to 3 years to replace, usually polluted, pollutants coated quartz sand can not be again to a good filtration effect, can only be replaced. Quartz sand filter material through iso9001-2000 quality system certification.

      Refined quartz sand is very stable in neutral and value in the range of acidic water, but there is a slight dissolution in alkaline water, chemical water treatment of SiO2 increment is not more than 2mg/L.

      Quartz sand filter material commonly used specifications: 0.5-1.0mm 0.6-1.2mm 0.8-1.6mm 1.0-2.0mm 2.0-4.0mm 4.0-8.0mm 8.0-16mm 16-32m

      Quartz sand filter material can play a good filtration role in accordance with such a specification range, but the specific depends on the nature of sewage treatment.