Sand Filter

Sand Filter

Sand filters are used for water purification. There are three main types;

  1. rapid (gravity) sand filters
  2. upflow sand filters
  3. slow sand filters

All three methods are used extensively in the water industry throughout the world. The first two require the use of flocculant chemicals to work effectively whilst slow sand filters can produce very high quality water free from pathogens, taste and odour without the need for chemical aids.

Read more about Sand Filter:  Sand Bed Filtration in Context

Famous quotes containing the word sand:

    “For in this yellow grave of sand and sea
    A calling for colour calls with the wind
    That’s grave and gay as grave and sea
    Sleeping on either hand.”
    —Dylan Thomas (1914–1953)