sand filter

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sand filter

[′san ‚fil·tər]
(civil engineering)
A filter consisting of graded layers of sand and aggregate for purifying domestic water.

sand filter

sand filter: plan
A bed of fine sand which is laid over graded gravel; used to remove impurities from a water supply.
References in periodicals archive ?
Performance contract that includes the renovation and rebuilding of water reservoirs and rapid sand filters the Western waterworks at Norsborg.
Media based water filters are categorized as activated carbon filters, sediment filters, sand filters and others, where others include filters based on media such as ceramic, magnetite and anthracite.
The initiative would help address water quality issues,besides the installation of water treatment plants,Reverse Osmosis (RO), Ultra-filtration(UF),Ozonator and sand filters etc for less privileged communities living in low lying areas,it was learnt.
The ASGARD conversion includes installation of engine sand filters and additional ballistic protection, along with the incorporation of a mission data recorder and enhanced communication equipment for multinational missions.
Therefore, to ensure good quality of recycle water the used ablution water should be treated through sand filters [12] with sand media having effective size ranging between 0.
Glass beads can be used in existing sand filters once the sand is removed and will filter 1500% better - down to 3 micron.
Hussein Hassano said "the plants operate according to wastewater treatment principle," adding that it is a two-stage process, mechanical and chemical, to produce clean water, starting with filtering water through purification units and charcoal and sand filters after which the water is gathered in special tanks with storage capacity of 100 cubic meters.
Qualified aircrews are still answering emergencies because their Sea Kings have sand filters over their air intakes.
The utility company will begin work in early August to upgrade the existing waste water treatment works which includes modernisation of the pumping station, sand filters, installation of a kiosk and associated pipework.
Water filtration practices; including slow sand filters and precoat filtration.
Sand Filters With Internal Flotation: The flotation inside the filters is carried out through a recycling mechanism where the water is saturated with air (similar to the one installed in the flotation unit).
COUNTRYSIDE: We have concrete cisterns that initially filter the water with sand filters and then a whole house filter where it comes into the house.