1. 1
Public Health Engineering Department,
Govt of Bihar
Brief Overview
of
The Project
Construction of Mini Piped Water Supply Schemes
with provision of suitable Treatment Technology and
solar pumps in Fluoride affected habitations in Bihar
Arvind Kumar ( DFID- SWASTH)
2. Ground water is perhaps the most accepted
source particularly in areas where safe and
dependable surface water sources are not
available within easy reach or not available at
all.
Ground water is generally considered as a
safe source but in recent times research and
investigations have shown that quality of
ground water has deteriorated at many
locations thus making it unfit for use for
human consumption. In Bihar excessive
levels of arsenic and fluoride in ground water
have been noticed in many areas.
Public Health Engineering Department, being
conscious of this serious problem has decided
to install small water purification plants for
treating ground water drawn through tube
wells and supplying the treated safe water
local through stand posts to the consumers.
2
Objective of Scheme
3. SALIENT FEATURES OF THE SCHEME
• Capacity of Plant. - 40000 liters /day
• Borewell Discharge 5100/6000 liters/Hr
• Benefitted Population – 1000
• Per Capita per day Supply of Water- 40 liters
• Operation Time of Plant /day - 8 Hours
• Capacity of Overhead tank - 5000 liters
• Genset for Non Sun days Operation.
• Use of rustproof vessels & pipes.
• Three Months Trial Run , & thereafter Six Months of O& M
3
4. SEQUENCE OF THE PROJECT CONSTRUCTION
Marking of land
Bore well Construction
Testing of Raw water
Commencement of Civil Work
Completion of Civil Work
Solar Panel Installation
Pipe line & Stand Post Plant Installation
Commencement of Trial Run
Site Selection
5. 5
MAJOR COMPONENTS OF THE PROJECT
SITE DEVELOPMENT & BOUNADRY WALL
WATER (BOREWELL)
TREATMENT PLANT BUILDING
ENERGY (SOLAR SYSTEM)
TREATMENT UNIT
DISTRIBUTION SYSTEM
STAND POSTS
6. SITE DEVELOPMENT & BOUNDARY WALL
• Plant Building
• Boundary Wall
• Storage System
• Gate
• Approach Road
• Landscaping
6
8. BUILDING
One R.C.C/ Brick Masonary housing Treatment Plant and auxiliary
units. The building has one room Treatment Plant, one room for
Operator , one store and one Toilet with necessary facilities
8
9. Solar System
9
Submersible Pump
Security features:
• Protection against dry running
• Protection from Over/Under
Voltage
• Protection from Overload
• Protection from Over Temperature
Solar PV module array is of high efficiency Solar Modules utilizing
Crystalline Silicon Solar PV cells. The modules are warranted for power
output conforming to IEC-61215, ISPRA Italy, IECQ (PV-GAP), MNES &
BIS standards.
10. 10
WATER TREATMENT PLANT
SOLAR OPERATED PUMP
OXIDATION CHAMBER
IRON REMOVAL FILTER
ALUM DOSER
FLUORIDE/ ARSENIC REMOVAL UNIT
CONTROL PANEL
11. SEQUENCE OF TREATMENT PROCESS
PUMPED BY SOLAR PUMP
OXIDATION CHAMBER
IRON REMOVAL FILTER
ALUM DOZER
FLUORIDE REMOVAL FILTER
OVER HEAD TANK
POTABLE WATER AT STANDPOST
FOR VILLAGERS
DISTRIBUTION SYSTEM
Raw water
13. Components of Treatment Plant…….
• One cylindrical MS/ FRP Vessel
(400 mm dia X 1200 mm) filled with
media
• For oxidizing & removal of Iron from
raw water.
• The high oxidizing capacity catalytic
media is Manganese Dioxide
Granules – 12 mm to 25 mm
(Natural Mineral) for oxidizing iron in
raw water for its quick precipitation in
IRF.
• The system provides for auto
backwash of the filter bed.
• No regular maintenance required
only media needs to be replaced
once in a year
13
Contd…
Oxidation Chamber :
14. 14
Iron Removal Filter (IRF)
Components of Treatment Plant.
Contd…
Process Flow Diagram:
One cylindrical FRP Vessel (Size – 36” x 72”) with Top & Bottom distribution Kit,
Air valve & 1.5" Side Mounted Multiport Valve (MPV-F).(Opening Pressure - 4–
10 Bar)
The vessel is filled with gravel, course sand and green sand (natural mineral) for
further oxidation of residual iron and also filtration of water to make it free from
precipitated and deposited iron on filter bed.
The media needs to be replaced once in a year
15. • The Iron Removal Filter
(IRF) and the Fluoride
Removal Filter (FRF) are
equipped with a Multiport
Filter Valve (MPV-Filter
type) and a Multiport
Softener Valve (MPV-
Softener type) respectively.
15
Components of Treatment Plant…….
• The Multiport Valve (MPV)
controls the flow of water
through the granular media
of a filter. The handle on top
of the MPV can be set at any
of the slotted positions to
select the necessary
function of the valve.
Contd…
Multiport Valve :
16. 16
Components of Treatment Plant…….
Contd…
Alum Dosing System
This purpose of this unit is for pH correction for adjustment of pH of water to the
range of 5.5 to 6.5 to suit filtering media in FRF/ARF
The system comprises of 8 gallons capacity MS Cast vessel with 50 mm Ventury
fitted with PVC flexible pipes and brass taps
It operates automatically and hydraulically for direct dosing of saturated alum
solution
No regular maintenance required other than replenishing of chemical once it gets
consumed.
17. 17
Components of Treatment Plant…….
Contd…
Fluoride Removal Filter/ Media
• . One cylindrical FRP Vessel (Size – 36” x
72”) with Top & Bottom distribution Kit, air
valve & 1.5" Side Mounted Multiport Valve
(Opening Pressure : 4–10 Bar).
• The vessel is filled with gravel, course
sand and Activated Alumina Grade
AAFS50. (Certified by M/S Alcan U.S.A)
• It works on adsorption principle
• The greater adsorptive capacity of
Activated Alumina AAFS50 makes it
economical for one-time use and
disposal.
• Spent material has met the Toxicity
characteristic leaching procedure U.S.A
(TCLP) and California Waste Extraction
Test ( WET)Test
• Media Life 15/ 18 Months( expected )
depending on the concentration of
Fluoride in raw water
• Backwash of Media Once a Month
18. 18
Components of Treatment Plant…….
Contd…
Internal Piping of the Treatment Plant :
uPVC Pipes and Fittings have been used as:
uPVC pipes being lead free so are non-toxic and
hence favoured for use in applications such as
potable water pipes. Selected and used
Do not corrode and are totally unaffected by Acids,
Alkalies and electrolytic corrosion from any source
Have extremely smooth bore due to which frictional
losses are at minimum and flow rates are at the
highest possible from any other pipe materials
Low friction loss & UV Resistant
Due to smoothness of inner surface of the pipe, it
prevents Algai, Bacteria and Fungi Formation inside
the pipe
Solvent joint plumbing system makes its pressure
bearing capacity twice than that of the threaded
pipe
The established aging factor of the commonly used
pipe are not applicable on uPVC Pipe thus providing
a very long life.
20. 20
Distribution
Network
System…….
Contd…
The system also includes 8
nos. of Stand Posts located at
strategic points of the villages.
The water being supplied from
the overhead tank constructed
on the roof of the treatment
plant building.
21. INNOVATIONS
Unique & compact building design to meet
the specific purposes of rural water supply
scheme
Use of latest technology for vessels and
internal plumbing to reduce maintenance
yet provide reliability and strength
Solar panels requires minimum
maintenance .
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