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Presentation by HMWSSB MD

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Presentation by HMWSSB MD in 2008

Presentation by HMWSSB MD in 2008

Published in: Technology

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  • 1. GREETINGS FROMHYDERABAD METROPOLITAN WATER SUPPLY AND SEWERAGE BOARD
  • 2.  HMWSSB Service area - 688.2 sq.kms GHMC area - 518.9 Sq.Kms Erstwhile MCH area - 169.3 sq.kms
  • 3. SNAP SHOT DETAILS OF WATER SUPPLY• Present Population : 6.74 Millions City and surrounding Municipalities• Service Area : 680 SqKm• No of Connections : 5.3 Lakhs.• No of Employees : 5300.• Total Supply Quantity : 263 MGD.• Bulk Supplies to Surrounding Municipalities : 70 MGD• Duration of Supply : 2.0 Hours on alternate day• Monthly Revenue : 21 Crores
  • 4. HISTORY HUSSAIN SAGAR• The first source of water supply to Hyderabad is Hussain Sagar Lake.• The Lake was constructed in 1578 AD.• In 1891 a Slow sand filter was setup in Narayanaguda• The water of this lake served the drinking water needs up to around 1930.
  • 5. DRINKING WATER MEASUREMENT UNITS• 1 MLD - One Million Liters Per Day (10 Lakh Liters)• 1 MGD - One Million Gallons Per Day ( 45.4 Lakh Liters)• LPCD - Liters Per Capita Per Day• WHO Norms for One Human Being Water Consumption - 165 LPCD
  • 6. WATER SOURCES OF HYDERABAD OSMANSAGAR Commissioned in 1920 for 25 Mgd
  • 7. HIMAYATSAGARCommissioned in 1927 for 15 Mgd
  • 8. MANJIRACommissioned in 1965 / 1981 for 15 Mgd & 30 Mgd
  • 9. SINGURCommissioned in 1991 / 1993 for 37 Mgd & 38 Mgd
  • 10. KDWSPCommissioned in 2004/2007 for 90 Mgd & 90 Mgd
  • 11. PRESENT WATER SUPPLY DRAWLSSource Wise Drawals Normal Year PresentSl. drawals Source Commissione drawalsNo. (in MGD) d (in MGD)1 Osmansagar 1920 25 182 Himayathsagar 1927 15 2 Manjira Barrage3 1965 & 1981 45 45 (Phase I & II) Singur Dam4 1991 & 1993 75 75 (Phase III & IV)5 Krishna Project 2004 & 2007 90 130 Total from all sources 250 270
  • 12. Source Augmentation in Phases 100 80Cap in MGD 60 90 90 40 20 25 30 37 38 15 15 0 1920 1927 1965 1981 1991 1993 2007 2004 Year Osmansagar Himayathsagar Manjeera Singur Krishna• Total Installed Capacity – 250 MGD + 90 MGD (2007) = 340 MGD.• Sources becoming less reliable – Osmansagar & Himayathsagar
  • 13. Water Supply Demand Projections: Water Population Year Demand (Lakhs) (in Mgd) 2006 67.40 325 2011 77.20 394 2016 93.00 489 2021 109.00 585 2031 118.10 651
  • 14. WATER DEMAND Vs AUGMENTATION 700 Godavri Godavri 651 Krishna or 600 Godavari 585 500 489 WaterDemand (Mgd) Krishna Demand 400 394 325 340 340 340 340 Water 300 Available 250 200 100 0 2006 2011 2016 2021 2031 HORIZON YEAR
  • 15. WaterTreatment Plants
  • 16. WATER TREATMENT TECHNOLGIES• SLOW SAND GRAVITY FILTERATION TECHNOLOGY• RAPID SAND GRAVITY FILTERATION TECHNOLOGY• DUAL MEDIA GRAVITY FILTERATION TECHNOLOGY• PRESSURE FILTERATION
  • 17. HMWSSB – WTPs & Technologies• SHAIKPET FILTERS – Slow Sand Filtration• ASIF NAGAR FILTERS – Rapid Sand Gravity Filtration• PEDDAPUR FILTERS - Dual Media Filtration• KODANDLA PUR FILTERS - Rapid Sand Gravity Filtration
  • 18. KODANDLA PUR WTPKRISHNA DRINKING WATER SUPPLY PROJECT
  • 19. SALIENT WATER SUPPLY INFRASTRUCTURE DETAILS• No. of WTPS - 6 Nos (1568 MLD)• No of Primary Pumping Stations - 12 Nos• No. of Master Balance Reservoirs - 10 Nos• No. of Service Reservoirs - 70 Nos• Length of Transmission Mains - 570 KM• Length of Distribution Mains - 2200 KM
  • 20. SALIENT SEWERAGE INFRASTRUCTURE DETAILS Trunk & Main Sewers of 600 mm dia & above - 572 Km Lateral Sewers – 300 mm dia & below - 1900 Km Existing Treatment Facilities - i) Primary treatment at Amberpet - 113 Mld ii) Secondary Treatment Plant at HS Lake - 20 Mld
  • 21. SEWAGE TREATMENT PLANTS
  • 22. UASB REACTORS
  • 23. SIS Main – Laying
  • 24. KEY PERFORMANCE INDICATORS Horizon PeriodSl. ComponentNo. 2006 2011 2016 20211 Network coverage 70% 80% 90% 95% (Access)2 Treatment & Disposal 23% 80% 90% 95%3 Recycle & Reuse 3% 20% 30% 50%4 O&M Cost Recovery 70% 100% 100% 100%
  • 25. Rainwater Harvesting
  • 26. Reasons for ground water depletion• Increasing demand• With drawing more than recharge• Reduction of recharge area due to buildings, paved paths and roads• Diminishing surface water bodies• Uncertain rainfall
  • 27. Techniques to improve ground water throughrainwater harvesting• Creation of recharge pits, trenches and shafts in building, open spaces, parks and along roads• Use of existing dry well as recharge structure• Rooftop rain water should be channeled into storage tanks, sumps etc. for direct use• Protection and conversion of open areas, parks, and surface water bodies• Afforestation under clean and green programme
  • 28. Rooftop rainwater stored in Ferrocement tank (popular in Bangladesh)
  • 29. Recycling water
  • 30. USAGES OF RECYCLED WATER• Recycled water is to be treated to meet the requirements of specific usages• For residential usage, it is to be treated to higher quality standards• Flushing toilets• Watering gardens• Washing cars• Ornamental ponds• Fire-fighting
  • 31. • For community purposes, it is to be treated with lesser quality standards• Irrigation• Watering grounds• Construction• Flushing sewers• Recharging groundwater• Recycled water can also be used for a range of industrial processes and dust suppression.
  • 32. • The quality of both recycled water and drinking water needs to be monitored at various locations right from source of treatment, at the reservoirs, along the pipelines and at customers homes to prevent the cross mixing of each other.• However, recycled water is not appropriate for personal use such as drinking, bathing, cooking or general cleaning inside the home.
  • 33. RANGE OF RECYCLED WATER QUALITY STANDARDS Vs FRESH WATER STANDARDS Permissible Standards Recycled waterSL No: Quality Parameters Recycled water after softening Recycled water after Fresh Water after tertiary and demineralization treatment chlorination 1 PH 7 – 8.5 7.1 – 7.3 7.1 – 7.2 8.75 Total Hardness (mg/pl 2 35 – 40 120 - 170 40 Nil as Caco3) Chlorides 3 15 - 20 60 - 130 60 – 130 Nil (mg/l as Cl) Sulphates 4 1.5 – 2.5 15 - 25 15 – 25 Nil (mg/l as So4) Phospates 5 0.1 0.2 – 0.5 0.2 – 0.5 Nil (mg/l as Po4) Nitrates 6 1-2 13 - 19 13 – 19 Nil (mg/l as NO3) 7 Suspended solids (mg/l) 5 - 10 Nil Nil Nil 8 Turbidity 1 -5 2-3 2–3 0.2 9 BOD 5 (mg/l) 0.1 – 1.5 1-2 1 – 1.5 Nil 10 COD (mg/l) 1–2 4–6 3.5 - 5 Nil 11 Coli form Nil Nil Nil Nil

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