LAND ACQUISITION:LAND ACQUISITION:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

PROJECT DESCRIPTION PROJECT DESCRIPTION & CONTRACT SUMMARY& CONTRACT SUMMARY

STP – Al Haer – Presentation:

Description Of The ProjectDescription Of The Project Proposed Sewage Treatment Plant Phase-I, is located at south Proposed Sewage Treatment Plant Phase-I, is located at south

of Riyadh in Al Haer district. Present contract is to build the of Riyadh in Al Haer district. Present contract is to build the STP Phase-I with STP Phase-I with capacity 640,000mcapacity 640,000m³³/day/day (168 MGD) peak (168 MGD) peak flow and flow and 400,000m400,000m³³ /day /day (105 MGD) average flow. (105 MGD) average flow.

Main Main contractorcontractor is is “Aziz Company Ltd.”“Aziz Company Ltd.” And he is And he is responsibleresponsible to to design, construct, operate & maintaindesign, construct, operate & maintain the plant the plant for for one yearone year..

STP – Al Haer – Presentation:

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:

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/LS.S.S.S. < 10 mg/L< 10 mg/LNitrogenNitrogen < 10 mg/L< 10 mg/LFecal ColiformFecal Coliform <2.2 MPN per 100 ml<2.2 MPN per 100 ml

STP – Al Haer – Presentation:

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:

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

Irr igation and Plantation etc.Irr igation and Plantation etc.

Fire Fighting Pipe Networks and Hydrants etc.Fire Fighting Pipe Networks and Hydrants etc.

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

Sewage Treatment Plant – Phase I Sewage Treatment Plant – Phase I Al HaerAl Haer

General Information:General Information:

STP – Al Haer – Presentation:

General InformationGeneral InformationContract 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 PeriodFinished on (29.02.1432 H)Finished on (29.02.1432 H)

84.18 %84.18 %

STP – Al Haer – Presentation:

Cont’dCont’d

Value of revised master Value of revised master programme upto Safar 1432H programme 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 executed Total 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 Civi l Works Executed % age of Civi l 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

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PROGRESS PROGRESS PHOTOGRAPHS:PHOTOGRAPHS:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

STP – Al Haer – Presentation:

RAIN WATER FLOOD RAIN WATER FLOOD PROTECTION PROTECTION

ARRANGEMENTS:ARRANGEMENTS:

STP – Al Haer – Presentation:

THANK’STHANK’S

STP – Al Haer – Presentation: