Quartz sand filter backwash water and water backwash

Quartz sand filter, also known as sand filter and sand filter, filter medium ( Now there are people will call for quartz sand filter media filter, because quartz sand grain size, different points 2 - Three kinds of specifications) , mechanical filter, alias many, is actually the same filter, in the water treatment process, is one of the most commonly used mechanical filtration equipment, because the filter material price is low, environmental protection, the advantages of the filtering effect is good, so the quartz sand filter obtained has made full application in water treatment.

for the quartz sand filter backwashing then? First we speak of from the role of quartz sand filter, quartz sand filter is to filter and intercept the suspended solids in the water, sediment, impurities such as organic matter. Filtering principle is primarily by quartz sand interception, so quartz sand filter work after a period of time, there are many tiny particles between the gap of sand, such as mud, impurities such as organic matter, etc. If does not carry on the backwashing, impurities such as filtering tank body of intercepting sediment will pile up, thus affecting the source water by sex, and the water pressure decreases, reduce filtering flow, not only waste precious energy ( Electricity, water pump power) , and the effluent water quality is not up to standard, so, quartz sand filter using backwashing after a period of time must be carried out.

there are two kinds of quartz sand filter backwashing way, is a kind of air water backwashing, the other is a kind of backwashing water.

air water backwashing: is the use of air bubbles and quartz sand filter material friction between the two, moreover is in using quartz sand filter material of the friction between particles and particles, which is using quartz sand filter material and water photograph rushs friction, four interaction, on the maximum limit increased the backwash effect, so that after the water washing of the quartz sand filter material can be normal use. Advantages are: the backwashing time is shorter, less water consumption.

water backwashing, mainly through the quartz sand filter material and water photograph rushs friction friction and sand and sand off the impurities in the water, the characteristic is: do not need to provide pouring, water consumption is bigger, the operation is simple. If not clear place to visit our company website WWW in detail. 571年水。 com