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Ankit Shukla
ACA, Agra
 Why Treat Water?
 Uses of Water
 Water Supply System
 Sources of Water
 Water Treatment
 Water Storage
 Distribution System
 Society realized long ago that human health and
the welfare of the general population are
improved if public water supplies are treated
prior to use.
 Nearly all structures require a water supply.
 Appropriate flow rate, pressure, and water
quality are necessary for effective use.
 Bathing
 Toilets
 Cleaning
 Food preparation
 Cooling
 Fire protection
 Industrial purposes
 Drinking water = Potable water
©iStockphoto.com
MAIN SOURCES
OF
WATER
Aquifers (Groundwater)
• Primary source of drinking water
• Porous consolidated rock or
unconsolidated soil
• Groundwater fills spaces
• Wells and pumps used to remove
water
Aquifer
Courtesy USGS at
http://pubs.usgs.gov/circ/circ1139/htdocs/boxa.htm
This image was reproduced from groundwater.org with the permission of
The Groundwater Foundation. © 2010 The Groundwater Foundation. All
Rights Reserved
Surface Water
• Lakes, reservoirs, rivers
• Rivers dammed to create reservoirs
• Reservoirs store water during heavy
rain/snow
Courtesy NASA
http://www.ghcc.msfc.nasa.gov/surface_hydrology/water_ma
nagement.html
Courtesy USDA
http://www.ks.nrcs.usda.gov/news/highlights/2006_april.html
Lake Tuscaloosa Dam
©iStockphoto.com
PERCENTAG
E OF WATER
USED DAILY
 Amount of treatment
depends on quality of the
source
 Ground water requires less
treatment than surface
water
The city of Salem water treatment
facility withdraws water from the
North Santiam River.
Courtesty USGS http://pubs.usgs.gov/fs/2004/3069/
Pumped to Storage Tank
• Storage
• Water pressure
opsi
o 1 psi = 2.31 feet of water
NOAA
http://www.csc.noaa.gov/alternatives/infrastructure.html
WATER DISTRIBUTION
SYSTEM
 Consists of water lines,
fittings, valves, service lines,
meters, and fire hydrants
 Loop system more desirable
than branch system
◦ Isolation valves
◦ Water flows in more than
one direction LOOP
SYSTEM
BRANCH
SYSTEM
INDIRECT WATER
SUPPLY
• Water
going to
overhead
tank and
then the
water is
supplied to
different
floors by
gravity
Water distribution
system
WATER DISTRIBUTION
SYSTEM
 Typical new system pipe
◦ Thermoplastic or ductile iron
◦ Reinforced concrete in larger mains
 Older system pipe
◦ Cast-iron or asbestos cement
 Typical distribution pressure of 65 – 75 psi
 Designed for less than 150 psi wikimedia
 Residential, commercial, and
industrial facilities
 Residential
◦ Min. distribution pressure = 40 psi
◦ Max. distribution pressure = 80 psi
 Pressure-reducing valve
 Commercial or industrial facilities
◦ May require higher pressure
◦ Pumps can increase pressure
©iStockphoto.com
©iStockphoto.com
TYPES OF FITTINGS
HOLLOW PIPES
GALVANISED IRON (G. I .
PIPES)
LEAD
PIPES
PVC PIPES
JOINTS
JOINTS
GATE
VALVE
GLOBE
VALVE
RELIEF AND FLOAT
VALVE
TAP OR BIB
COCK
STOP
COCK
VARIOUS FITTINGS –GLOBE
VALVE
STOP TAP
VARIOUS VALVES , TUBES AND
PIPES
PTFE Tape
12m Pk of
10
Pegler
Washing
Machine
Tap 15mm
x ¾""
Pegler
Gate Valve
22mm
Pegler
Double
Check
Valve
15mm
Pegler Ball
Valve Red
15mm
Micro bore
Copper
Tube
10mm ×
25m
Copper
Tube
15mm ×
20m
Copper
Pipe Clips
22mm
ELECTRICAL
MOTORS
Water Supply

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Water Supply

  • 2.  Why Treat Water?  Uses of Water  Water Supply System  Sources of Water  Water Treatment  Water Storage  Distribution System
  • 3.  Society realized long ago that human health and the welfare of the general population are improved if public water supplies are treated prior to use.  Nearly all structures require a water supply.  Appropriate flow rate, pressure, and water quality are necessary for effective use.
  • 4.  Bathing  Toilets  Cleaning  Food preparation  Cooling  Fire protection  Industrial purposes  Drinking water = Potable water ©iStockphoto.com
  • 6. Aquifers (Groundwater) • Primary source of drinking water • Porous consolidated rock or unconsolidated soil • Groundwater fills spaces • Wells and pumps used to remove water Aquifer Courtesy USGS at http://pubs.usgs.gov/circ/circ1139/htdocs/boxa.htm This image was reproduced from groundwater.org with the permission of The Groundwater Foundation. © 2010 The Groundwater Foundation. All Rights Reserved
  • 7. Surface Water • Lakes, reservoirs, rivers • Rivers dammed to create reservoirs • Reservoirs store water during heavy rain/snow Courtesy NASA http://www.ghcc.msfc.nasa.gov/surface_hydrology/water_ma nagement.html Courtesy USDA http://www.ks.nrcs.usda.gov/news/highlights/2006_april.html Lake Tuscaloosa Dam ©iStockphoto.com
  • 9.
  • 10.  Amount of treatment depends on quality of the source  Ground water requires less treatment than surface water The city of Salem water treatment facility withdraws water from the North Santiam River. Courtesty USGS http://pubs.usgs.gov/fs/2004/3069/
  • 11. Pumped to Storage Tank • Storage • Water pressure opsi o 1 psi = 2.31 feet of water NOAA http://www.csc.noaa.gov/alternatives/infrastructure.html
  • 13.  Consists of water lines, fittings, valves, service lines, meters, and fire hydrants  Loop system more desirable than branch system ◦ Isolation valves ◦ Water flows in more than one direction LOOP SYSTEM BRANCH SYSTEM
  • 14. INDIRECT WATER SUPPLY • Water going to overhead tank and then the water is supplied to different floors by gravity
  • 17.  Typical new system pipe ◦ Thermoplastic or ductile iron ◦ Reinforced concrete in larger mains  Older system pipe ◦ Cast-iron or asbestos cement  Typical distribution pressure of 65 – 75 psi  Designed for less than 150 psi wikimedia
  • 18.  Residential, commercial, and industrial facilities  Residential ◦ Min. distribution pressure = 40 psi ◦ Max. distribution pressure = 80 psi  Pressure-reducing valve  Commercial or industrial facilities ◦ May require higher pressure ◦ Pumps can increase pressure ©iStockphoto.com ©iStockphoto.com
  • 21. GALVANISED IRON (G. I . PIPES)
  • 33. VARIOUS VALVES , TUBES AND PIPES PTFE Tape 12m Pk of 10 Pegler Washing Machine Tap 15mm x ¾"" Pegler Gate Valve 22mm Pegler Double Check Valve 15mm Pegler Ball Valve Red 15mm Micro bore Copper Tube 10mm × 25m Copper Tube 15mm × 20m Copper Pipe Clips 22mm