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  • 1. LAND ACQUISITION:LAND ACQUISITION: STP – Al Haer – Presentation:
  • 2. STP – Al Haer – Presentation:
  • 3. PROJECT DESCRIPTIONPROJECT DESCRIPTION & CONTRACT SUMMARY& CONTRACT SUMMARY STP – Al Haer – Presentation:
  • 4. Description Of The ProjectDescription Of The Project  Proposed Sewage Treatment Plant Phase-I, is located at southProposed Sewage Treatment Plant Phase-I, is located at south of Riyadh in Al Haer district. Present contract is to build theof Riyadh in Al Haer district. Present contract is to build the STP Phase-I withSTP Phase-I with capacity 640,000mcapacity 640,000m³³/day/day (168 MGD) peak(168 MGD) peak flow andflow and 400,000m400,000m³³ /day/day (105 MGD) average flow.(105 MGD) average flow.  MainMain contractorcontractor isis “Aziz Company Ltd.”“Aziz Company Ltd.” And he isAnd he is responsibleresponsible toto design, construct, operate & maintaindesign, construct, operate & maintain the plantthe plant forfor one yearone year.. STP – Al Haer – Presentation:
  • 5. Raw Sewage:Raw Sewage:  B.O.D5B.O.D5 300 mg/L300 mg/L  C.O.DC.O.D 500 mg/L500 mg/L  S.S.S.S. 300 mg/L300 mg/L  TKN-NTKN-N 50 mg/L50 mg/L  NH4-NNH4-N 40 mg/L40 mg/L  Minimum Crude Sewage TemperatureMinimum Crude Sewage Temperature 2020ºCºC  Maximum Crude Sewage TemperatureMaximum Crude Sewage Temperature 3535ºCºC STP – Al Haer – Presentation:
  • 6. Treated Effluent After Secondary Treatment:Treated Effluent After Secondary Treatment: B.O.D5B.O.D5 < 20 mg/L (Monthly Average)< 20 mg/L (Monthly Average) S.S.S.S. < 20 mg/L (Monthly Average)< 20 mg/L (Monthly Average) Total NitrogenTotal Nitrogen < 20 mg/L (Monthly Average)< 20 mg/L (Monthly Average) Fecal ColiformFecal Coliform <2.2 MPN per 100 ml<2.2 MPN per 100 ml Treated Effluent After Tertiary Treatment:Treated Effluent After Tertiary Treatment: B.O.D5B.O.D5 < 10 mg/L< 10 mg/L S.S.S.S. < 10 mg/L< 10 mg/L NitrogenNitrogen < 10 mg/L< 10 mg/L Fecal ColiformFecal Coliform <2.2 MPN per 100 ml<2.2 MPN per 100 ml STP – Al Haer – Presentation:
  • 7. Sewage Treatment Units:  Inlet lift pump station with coarse screens etc  Pre-aeration Tank  Grit and Grease Removal Tank  Parshall Flumes  Selector Tanks  Aeration Tanks (Carousel Bio-reactor)  Final Settling Tanks  Tertiary Treatment Plants  Chlorination Building  Return Activated Sludge Pump Station  Waste Activated Sludge Pump Station, Sludge Thickeners  Sludge Dewatering Building Including Sludge Decanters, Sludge Dryer etc.  Sludge Silo and Conveying System  Odour Control Unit  Process Pipe Work and Chambers etc. STP – Al Haer – Presentation:
  • 8. Auxiliary Building & Other Works:Auxiliary Building & Other Works:  Control BuildingControl Building  Generator BuildingGenerator Building  Electrical SubstationsElectrical Substations  Mosque, Workshop, Cafeteria & Health CentreMosque, Workshop, Cafeteria & Health Centre  Administration and Laboratory BuildingAdministration and Laboratory Building  Road WorksRoad Works  Irrigation and Plantation etc.Irrigation and Plantation etc.  Fire Fighting Pipe Networks and Hydrants etc.Fire Fighting Pipe Networks and Hydrants etc. STP – Al Haer – Presentation:
  • 9. STP – Al Haer – Presentation:
  • 10. Sewage Treatment Plant – Phase ISewage Treatment Plant – Phase I Al HaerAl Haer General Information:General Information: STP – Al Haer – Presentation: General InformationGeneral Information Contract ValueContract Value SR- 293,432,279.00SR- 293,432,279.00 Project Start DateProject Start Date 18.10.142818.10.1428 Project Finish DateProject Finish Date 17.10.143217.10.1432 Execution PeriodExecution Period 4 Years4 Years %age of Contract Period%age of Contract Period Finished on (29.02.1432 H)Finished on (29.02.1432 H) 84.18 %84.18 %
  • 11. STP – Al Haer – Presentation: Cont’dCont’d Value of revised masterValue of revised master programme upto Safar 1432Hprogramme upto Safar 1432H SR- 293,432,279.00SR- 293,432,279.00 %age of revised master%age of revised master Programme upto Safar 1432H.Programme upto Safar 1432H. 72.23%72.23% Total value of works executedTotal value of works executed upto Safar 1432H (Estimated)upto Safar 1432H (Estimated) SR. 120,832,941.60SR. 120,832,941.60 % age of total works executed% age of total works executed 41.18 %41.18 % % age of Civil Works Executed% age of Civil Works Executed 64.14 %64.14 % % age of Mech. Works% age of Mech. Works ExecutedExecuted 33.71 %33.71 % % age of Elect. Works% age of Elect. Works ExecutedExecuted --
  • 12. PROGRESSPROGRESS PHOTOGRAPHS:PHOTOGRAPHS: STP – Al Haer – Presentation:
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  • 52. RAIN WATER FLOODRAIN WATER FLOOD PROTECTIONPROTECTION ARRANGEMENTS:ARRANGEMENTS: STP – Al Haer – Presentation:
  • 53. THANK’STHANK’S STP – Al Haer – Presentation: