The surface water contains suspended
particles, organic matters etc. To remove suspended particles, the deep
bed Filters are used with two different grade of filter sand are used.
This helps the. various sizes of suspended particles at various levels.
Therefore the pressure drop across the filter bed is less compared to the
standard conventional sand filters. The dust holding capacity of the bed
depth is more as the two different type of sa.nd create more voids due to
different sizes but fine size sand is held between the voids and give fine
filtration.
The filer performs at a substantially
higher specific flow rate compared to conventional sand filter. The
specific flow rate for 2Sppm suspended solids load is 30m/sec. The final
treated water quality achieved < Sppm. |
| Advantages: |
* |
Higher
Specific Flow rate compared to conventional down flow filters.
Thus saving on space and cost |
* |
Maintenance
required is negligible |
* |
Water quantity required for the backwash is less
compared to conventional filter |
* |
In case of raw water having suspended solids
< 2Sppm, it is directly used for backwash |
| Application: |
Multigraded sand filter is an ideal choice
for all applications where a conventional sand filter used.
The
Multigraded filter can be used as side stream filter for cooling water and
potable
water treatment.
|
| Standard Specifications : |
* |
Ms Epoxy / FRP Pressure Vessel |
* |
One set of Inlet distributor collection systems |
* |
One set of Frontal pipe work with valve |
* |
Initial charge of filtering media and supporting under bed material |
* |
Two set of pressure gauge and sampling points... |
The Multiguard sand filters are available for the flowrate of 1m/hr to 140m/hr
and diameter 200mm to 3000mm.WTP reserves the right to make any
alteration as may be required from time to time with out prior
notice. |
| Note : |
WTPSS reserves right to make any alterations as may be required from time to
time
without prior notice |
