Water distribution planning in urban area

4,414 views
4,021 views

Published on

Water Distribution Planning in Urban Area FOR CIVIL ENG.......................

0 Comments
6 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
4,414
On SlideShare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
252
Comments
0
Likes
6
Embeds 0
No embeds

No notes for slide

Water distribution planning in urban area

  1. 1. POWERPOINT PRESENTATION ONWater Distribution Planning in Urban Area BY- PIYUSH KUMAR
  2. 2. URBAN WATER SUPPLYWater is a precious natural resource and one ofthe most essential requirements of all living being.Regions with the highest growth rate are nothaving access to water both in terms of quantity andquality.Indian cities receive intermittent water supply.Need is to understand – Quantity is not sufficientan quality is deteriorating.
  3. 3. PIPED WATER SUPPLIED IN CITIESMajor source of supply.Intermittent and erratic.Pressure is not acceptable.In equalities in service provision between the richand poor.High rate of water losses from the distributionsystem.
  4. 4. ISSUES AND CHALLENGESPopulation growth and Urbanization.Growing urban water demand.Infrastructure is aging and deteriorating.Increased pollution from municipal and industrialdischarge.Over exploitation of water resource.
  5. 5. WATER SUPPLIES IN INDIAN CITIES S.NO NAME OF CITY LPCD 1. BANGLORE 138 2. CHENNAI 136 3. DELHI 154 4. HYDERABAD 181 5 KOLKATA 83 6. MUMBAI 263SOURCE: CENTRAL POLLUTION CONTROLBOARD
  6. 6. IMPACT OF WATER ON LIVING CONDITIONInadequacy in the quantity and quality of drinking water –Unsafe.Inadequate infrastructure in the disposal of waste water –poor sanitation.Unsafe water to poor sanitation leading to poor hygieneand water-related disease.
  7. 7. CAPACITY OF PIPED WATER SUPPLY IN BANGLORE CITY Established Actual Source During Potential Supply (Year) (MLD) (MLD) 1. Aarkavati River 1896 36 - a) Hesaragatta 1933 148 60 b) T.G. Halli 2. Cauvery River 1974 135 135 a) Stage - 1 1983 135 135 b) Stage - 2 1993 270 270 c) Stage - 3 2002 270 270 d) Stage - 4 - Phase-1 2011* 500* 500* e) Stage – 4 – Phase-2* 1494 1370 TOTAL*The Cauvery Water supply stage – 4 –Phase – 2 is under implementation and will becompleted in 2011. ** The Quantity from TG Halli (60 MLD) might be very less in that day.
  8. 8. SUPPLY AND DEMAND GAPThe supply cannot meet the demand. The unaccounted for water is about 35-40%. To meet the deficit other source of water and tapped. BWSSB is also supplying water through its 6750 borewells and 22 water tankers.
  9. 9. GROUNDWATER SCENARIO IN BANGLORE CITYGroundwater plays an important role in the total watersupply of the city. 40% of the population of Bangalore isdependent on ground water.Number of the bore wells in the city is ranging from200,000 to 400,000.Over exploitation and poor management have contributedto groundwater depletion and quality problem.
  10. 10. PRESENT SCENARIO OF WATER SUPPLYBWSSB has divided Bangalore in to six zone. Calculation of water consumptionPIPED WATER SUPPLY – Population and per capitaconsumption in each zone.GROUNDWATER – Assuming 50% of the bore wellsare dry, and the remaining bore wells yielding about1.5lit/sec, with a pumping of 2 hour duration per day
  11. 11. WATER DISTRIBUTION SYSTEM
  12. 12. Some best management practices for enhancingdistribution system reliability through maintenanceinclude:1.Regular storage tank inspections and maintenance.2.Implementing a cleaning/ lining program.3.Developing an infrastructure replacement program.4.Instituting a valve and hydrant exercise program.5.Maintaining a leak detection program.6.Implementing a meter repairs/ replacement program.
  13. 13. CONTROLS OF WATER SUPPLY SYSTEMTo reach the target / set point (reservoir flows / levels).To reach the targets as fast as possible.To ensure the smoothest possible operation ofvalves/pumps.To control the slow transients.For real time operation monitored by SCADA.Particularly useful for complex pipe networks.
  14. 14. CLEAN WATER FOR HEALTHY LIVINGCONDITIONTo provide secured and safe waterSECURED – Adequate amount of water.SAFE – Suitable quality is maintained of water. To improve environmental sanitationIncrease sanitation coverage.To increase hygiene and health careImprove quality of water supply sources and storagefacilities.
  15. 15. MANAGEMENT OF TREATED WATER DURINGDISTRIBUTION AND STORAGERegulation for maintaining water quality standards indistribution systems.Maintain minimum residence time.Regular monitoring at storage and other junctions.Flushing and maintenance of storage facilities.
  16. 16. DISTRIBUTION NETWORK
  17. 17. THANKYOU

×