|
SYSTEM DESCRIPTION
Raw water from the bore well is pumped by means of the pump provided through the 10 Micron Bag Filter and online ozonation to Storage Tank. After chlorination and retention time period water pumped through Pressure Sand Filter for the removal of suspended impurities, mud and organics. After water will passed through activated carbon filter for the removal of inorganic impurities, bad taste and odor by the adsorption process that is these are retained by the surface of the granulated carbon and subsequently recharged once the backwashing is done with water. Antiscalent dosing system specially for Silica removal will be dose online. The water is then passed through Micron Filter where in particulate matter of size up to 5 micron and 1 micron the cartridge retains. The filtered water then passed through Ultra Filtration System for removal of collidal particals, bacteria present in water. (The UF system comprises of the membranes along with the pressure tubes) reject water will be drain out and (permeate water) treated water is passed through UV system and collect to storage tank and if required done online mineral dosing to maintain TDS of treated water. Then treated water recirculates to ozone tank through pump and simultaneously passed through 0.45 micron and 0.2 micron filter to filling section.
SCOPE OF WORK
Our Scope of work will include supply, erection and commissioning of Mineral/Packaged Drinking water plant based on Ultra Filtration Water Treatment Plant of capacity of 25 m3/hr. as per the specifications:
Design Basis
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Raw water Flow
|
30 m3/hr.
|
|
Treated water Flow
|
25 m3/hr.
|
|
Reject water Flow
|
5 m3/hr.
|
|
Raw water TDS
|
< 100 ppm
|
|
Hardness
|
<50 ppm
|
|
Iron
|
Nil
|
|
SDI
|
Nil
|
|
Sulphates
|
Nil
|
Note: All chemical parameters should be in limit. If you found drastically changes in raw water contact us immediately.
Annexure I
Technical Specification
|
A.
|
Mechanical Work
|
|
|
1.
|
Raw Water Pump
|
|
|
|
Quantity
|
:
|
1 Nos.
|
|
|
|
Capacity & Model
|
:
|
35 m3/hr.
|
|
|
MOC
|
:
|
SS316
|
|
|
|
Make
|
:
|
Grundfos - Germany/Wilo – Germany/Equivalent
|
|
|
2.
|
Bag Filter
|
|
|
|
Quantity
|
:
|
4 Nos.
|
|
|
|
Flow rate
|
:
|
35 m3/hr. each
|
|
|
MOC
|
:
|
PP
|
|
|
|
Make
|
:
|
AFE/Equivalent
|
|
|
3.
|
Sand Filter
|
|
|
|
No. of Units
|
:
|
One No.
|
|
|
|
Capacity
|
:
|
35 m3/Hr
|
|
|
|
Dia of vessel
|
:
|
1200 mm
|
|
|
|
Height of Vessel
|
:
|
1500 mm
|
|
|
|
MOC of Vessel
|
:
|
SS 316
|
|
|
|
Filter Media
|
:
|
One charge of filter media
|
|
|
|
Filter Media Qty
|
:
|
900 kg
|
|
|
|
Media Make
|
:
|
Various types of River sand.
|
|
|
|
Operating Pressure
|
:
|
2.5 + 0.5 Kg/Cm2
|
|
|
|
Thickness
|
:
|
2.5 mm Shell and 3mm Dish end (Top flanged and Hand hole)
|
|
|
|
Backwash Period
|
:
|
Daily
|
|
|
|
Backwash Flow rate
|
:
|
35 m3/ hr.
|
|
|
|
Backwash Time
|
:
|
10-15 minutes
|
|
|
|
Rinse Time
|
:
|
5 minutes
|
|
|
|
Valves
|
:
|
Ball Valve TC end 3” 5 nos.
|
|
|
4.
|
Activated Carbon Filter
|
|
|
|
No. of Units
|
:
|
One No.
|
|
|
|
Capacity
|
:
|
35 m3/Hr
|
|
|
|
Dia of vessel
|
:
|
1200 mm
|
|
|
|
Height of Vessel
|
:
|
1500 mm
|
|
|
|
MOC of Vessel
|
:
|
SS 316
|
|
|
|
Media
|
:
|
Activated Carbon Iodine vale 1000 (Silver Impregnated)
|
|
|
|
Activated Carbon Qty
|
:
|
400 kg
|
|
|
|
Supporting Media
|
:
|
Various types of River sand.
|
|
|
|
Operating Pressure
|
:
|
2.5 + 0.5 Kg/Cm2
|
|
|
|
Thickness
|
:
|
2.5 mm Shell and 3mm Dish end
|
|
|
|
Backwash Period
|
:
|
Daily
|
|
|
|
Backwash Flow rate
|
:
|
10 m3/ hr.
|
|
|
|
Backwash Time
|
:
|
10-15 minutes
|
|
|
|
Rinse Time
|
:
|
5 minutes
|
|
| 
