Industrial Activated Carbon and Quartz Sand Water Filter/Multimedia
Filter
Tank for Water Treatment
What's multimedia filter?
Miltimedia filter is a kinf of using quartz sand(quartz sand and
anthracite or activated carbon) as the filter medium of the filter.
It is to use one or several of filter medium,under certain
pressure, make concentrate through the medium, to remove
impurities,so as to achieve the purpose of the filter. Inside of
packing is company: quartz sand, anthracite coal.
Activated Carbon Filter is the most common method of treatment for
dechlorination and removal of colour, odor, Organic impurities &
Residual chlorine from water, through adsorption of the compounds
that cause these problems.
Activated Carbon Filter operates through adsorption. Adsorption is
directly related to the surface area of the media. This great
surface furnishes a huge adsorption area for organic as well as
chlorine molecules to attach themselves. This intermolecular
attraction between the carbon surface and the substance that is
being adsorbed can be altered by increasing the density of the
carbon or by reducing the distance between the carbon surface and
the substance being adsorbed.
PRESSURE SAND FILTER PROCESS
Raw water is passed through the pressure sand filter, the filter
media is supported on gravel bed that consists of multiple layers
of Graded quartz sand, Fine sand, Super fine white sand and pebbles
of progressively larger sizes. During the filtration cycle the
filter bed retains the dirt and suspended particles from the water
and accumulates within the filter the water and accumulates within
the filter bed. As the filtration progress the filter media gets
loaded with retained suspended particles, this results in a
continuous increase of pressure drop across the filter, when a
predetermined pressure drop level is achieved the filter is shut
down for cleaning.
BACK WASH
As the filtration progress the filter media gets loaded with the
retain the suspended particles, this results in a continuous
increase of pressure drop across the filter, when a predetermined
pressure drop level is achieved the filter is shut down for
cleaning. The filter media is cleaned by backwash system. After
backwashing the filter is rinsed with raw water and after the
required quality of water is achieved the filter is put back into
service. Depending on the filtered water quality required
backwashing is either done with raw water or with filtered water.
Filter technology parameters:
Filter filtration rate: 8 ~ 300m3 / h
Backwash time: 8 to 10
Working pressure: ≤ 0.6Mpa
Flushing filter head loss: 0.8
Water outlet: 2-5mg/L
Water inlet: <10mg/L
Water outlet: <2mg/L
Design temperature: 5 ~ 4000C
