[Waterworks] City Presentation - Bangkok(Thailand)

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[2014 May] International Program on Seoul Waterworks

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[Waterworks] City Presentation - Bangkok(Thailand)

  1. 1. Water Quality Management in Bangkok Drainage and Sewerage Department Bangkok Metropolitan Administration
  2. 2. Contents • General Information • Water Quality Management • Countermeasures • Construction • Non- Construction • Future Scheme of WWTPs • By-Product Management
  3. 3. Introduction of Bangkok  Bangkok , the capital city of Thailand , located on a low that plain of Chao Phraya River , extending to the Gulf of Thailand
  4. 4. INNER AREA MIDDLE AREA OUTER AREA Introduction of Bangkok
  5. 5.  Total Area 1,575.64 km2 – Inner Area 269.77 km2 – Middle Area 428.20 km2 – Outer Area 877.67 km2 Introduction of Bangkok
  6. 6. 1997 7,609,400 2002 8,394,100 2007 9,244,000 2012 10,156,000 2017 11,131,000 Population in Bangkok Population (capita)Year
  7. 7. Organization of the BMA • The existing institutional organization of BMA is divided into 3 offices, 16 departments, and 50 districts
  8. 8. 8 Organization Chart of the BMA Drainage and Sewerage Department
  9. 9. Organization Chart of DDS Director General Deputy Director (Administration) Deputy Director (Operation) Deputy Director (Techniques) Secretarial DivisionofDDS Main Drainage System Development DrainageInfo. System Drainage Control-Structure System SewerageSys. CanalSystem Water Quality Management Mechanical
  10. 10. 10 Drainage and Sewerage Department Responsibilities • Storm water drainage • Flood protection • Water Quality Management
  11. 11. 11 Water Pollution in Bangkok 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 ิวงค์จ.นครสวรรค์ รัตนจ.นครสวรรค์ ลากลางจ.ชัยนาท ้าพระยาจ.ชัยนาท ินทรบุรีจ.สิงห์บุรี ้าพระยาจ.สิงห์บุรี พระยาจ.อ่างทอง พระนครศรีอยุธยา กระดาษบางปะอิน ามโคกจ.ปทุมธานี าสาแลจ.ปทุมธานี สะพานนนทบุรี สะพานพระราม6 ะพานพุทธยอดฟ้าสะพานกรุงเทพท่าเรือกรุงเทพ ารอ.พระประแดงพระสมุทรเจดีย์ mg/l Nakorn Sawan Bang Pa In Bangkok Samut Prakan DO BOD • The water Quality in Chao Praya River is effected by the pollution load discharging from Bangkok area
  12. 12. 12 9 Sampling Points of Chao Phraya River 1 2 3 4 5 6 7 8 9 R01: Nonthaburi River Bank R02: Rama 7 R03: Pin Klao R04: Buddha Bridge R05: Krung Thep Bridge R06: Rama 9 R07: Chong Non Si R08: Bang Na R09: Pra Pra Dang
  13. 13. Location of Sampling in BMA จุดเก็บตัวอย่าง น้า Sampling Points There are 282 sampling points in 161 major canals for water quality monitoring
  14. 14. DO in major canals, mg/l Ref.:Yearly report 2004, DDS, BMA DO in major canals (mg/l) Most of Dissolved Oxygen (DO) in major canals are very low (nearly zero). That’s effect to the living organism in the canals Reference: Yearly report 2012, DDS, BMA
  15. 15. BOD in major canals, mg/l Ref.:Yearly report 2004, DDS, BMA
  16. 16. Wastewater Origins Sources of Wastewater 1. Domestic Wastewater 2. Commercial Wastewater 3. Industrial Wastewater
  17. 17. 17 Wastewater Quantity in Bangkok area - 500,000 1,000,000 1,500,000 2,000,000 2,500,000 3,000,000 3,500,000 4,000,000 ปรีมาณน้าเสีย(ลบ.ม./วัน) 2540 2545 2550 2555 2560 ปี พ.ศ. ครัวเรือน พาณิชยกรรม อุตสาหกรรม รวมปริมาณน้าเสีย WastewaterQuantity,cu.m/day Household Commercial Building Industrial Total 20122002 20071997 2017
  18. 18. 18 BOD loading in Bangkok Area - 50,000 100,000 150,000 200,000 250,000 300,000 350,000 400,000 450,000 500,000 ภาระบรรทุกBOD(กก/วัน) 2540 2545 2550 2555 2560 ปี พ.ศ. ครัวเรือน แหล่งพาณิชยกรรม อุตสาหกรรม รวมภาระบรรทุกBOD BODloading,KgBOD/day Household Commercial Building Industrial Total 20122002 20071997 2017
  19. 19. Countermeasures • Construction Measures - Royal Initiated project - Community WWTP - Central WWTPs • Non-Construction Measures
  20. 20. 20 84,600 cbm/d Makkasan 260,000 cbm/d Royal Initiated Projects Rama IX
  21. 21. Construction and Rehabilitation of Community WWTPs Operation and maintenance of 12 Community WWTPs that handover from the Housing Authority with capacity of 25,700 m3/d
  22. 22. 22 Master Plan • JICA 1981 (10 Zones) • JICA 1999 (20 Zones) • JICA 2011 (27 Zones) 23 45 6 7 15 12 10 20 168 1113 1417 19 18 9 BMA has developed the Wastewater Master Plan by JICA continuously
  23. 23. 23 JICA Master Plan (27 zones) Source : JICA 2010
  24. 24. 24 Central WWTP in Bangkok Source : JICA 2010
  25. 25. Wastewater Project Population Area (sq.km.) Capacity (cbm./d) 1. Si Phraya WWTP 120,000 2.7 30,000 2. Rattanakosin WWTP 70,000 4.1 40,000 3. Din Dang WWTP 1,080,000 37 350,000 4. Chong Non Si WWTP 580,000 28.5 200,000 5.1 Nong Khaem – Pasi Charoen WWTP 520,000 44 157,000 5.2 Tung Kru WWTP 177,000 42 65,000 6. Chatu Chak WWTP 432,000 33.4 150,000 Total 2,979,000 191.7 992,000 12% of area 40% of wastewater Total Capacity of Central WWTPs in Bangkok
  26. 26. 26 Future Scheme of WWTP BangSue WWTP Service area : 21 sq km Capacity : 120,000 cbm/d Service Area : 63.85 sq km 135,000 cbm/d FS in 2011 by JICA and DD in 2014 KlongToei WWTP Nongbon WWTP Minburi WWTP Service Area : 2.85 sq km. Capacity 10,000 cbm/d FS and DD completed in 2012 and preparation for Construction during 2013 - 2015 Service Area : 29.48 sq km. Capacity : 148,000 cbm/d FS and DD in 2013-2014 Thonburi WWTP Service Area : 71 sq km. Capacity : 360,000 cbm/d Cabinet Approval Construction scheduled for completion in 2014
  27. 27. Water Reuse
  28. 28. Sludge for Land Application
  29. 29. Non-Construction Measures • Law Enforcement • Public Relation • Wastewater User Charge
  30. 30. 34 Bangkok: the City of Life
  31. 31. Thank you for your attention 35

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