AL GURM RESORT DEVELOPMENT

VACUUM SEWERAGE SYSTEM

Prepared by:

V.Ramesh Kumar

Mott MacDonald Ltd.

ContentsContents

• Introduction

• Project Salient

• Principle of Function

• Comparison with Gravity System

• Integrated Layout

• Individual Component

• Site Photograph/Activities

• Conclusion

INTRODUCTIONINTRODUCTION

• Vacuum Sewerage System is a Mechanized system of wastewater transport, unlike gravity flow.

• It uses the differential air pressure to move the wastewater.

• It requires a central source of power to run Vacuum pumps which maintains vacuum on the collection system.

• The system requires a normally closed Vacuum interface valve at each entry to seal the lines so that vacuum is maintained.

• The resulting differential pressure between atmosphere and vacuum becomes the driving force that propels the wastewater towards the vacuum station.

Project –Al Gurm Resort Project –Al Gurm Resort

SALIENT FEATURESSALIENT FEATURES

The Project Includes Vacuum Sewerage system

• Pipe Length : 2.5 km Approx

• Types of pipes : HDPE(SDR 13.6 &11)

• Diameter Used : 90/125/180/200mm

• Peak Flow : 13.2 lit/sec

• Types of Flow : Negative Pressure(-0.64 to -0.75)

Project –Al Gurm Resort Project –Al Gurm Resort

SALIENT FEATURESSALIENT FEATURES

• DEVELOPER : ALDAR

• CONSULTANTS :

- Consultant (Design) : M/s Dar Al Handasah

- Consultant (Supervision) : M/s Dar Al Handasah

- Consultant Overseeing) : M/s Mott MacDonald

• CONTRACTOR - M/s Six Co.

• Specialized Contractor

- METCO

• Estimated Project Cost : AED 8.65 MILLIONS

• Start Date : Jan 2010

• Completion Date : Sep 2010

• Project Status : Completed

PRINCIPLE OF FUNCTIONPRINCIPLE OF FUNCTION

INDIVIDUAL COMPONENTINDIVIDUAL COMPONENT

• Interface Valve

• Isolation valve

• Vacuum Pump

• Vacuum Vessel

• Discharge Pump

• MCC

Interface ValveInterface Valve

Division/Isolation ValveDivision/Isolation Valve

Vacuum PumpVacuum Pump

Vacuum Vessel & Discharge PumpsVacuum Vessel & Discharge Pumps

MCC (Motor Control Unit)

INTEGRATED LAYOUTINTEGRATED LAYOUT

Comparison with Gravity SystemComparison with Gravity System

Factor’s Gravity Vacuum

Pipe Diameter Large (>160) Small (80-250)

Trenches Deep Shallow

Excavation Complicated and long term Simple and fast

Leakage Possible Impossible

Manholes Required No manholes, inspection pipes only

Machinery required Heavy machinery Simple machinery

Cost High Cost Low compare to gravity)

Storm Water Can Collect Cannot Collect

Distance Long Distance Short Distance

Biofilter Not Required Required

SITE ACTIVITIESSITE ACTIVITIESVacuum Chamber at Site.Vacuum Chamber at Site.

Sump/Collection ChamberSump/Collection Chamber

Interface Valve ChamberInterface Valve Chamber

Valve Display Monitoring PanelValve Display Monitoring Panel

Vacuum StationVacuum Station

SITE ACTIVITIESSITE ACTIVITIES

CONCLUSION……….CONCLUSION……….

• The VSS helps not only to protect the environment, but at the same time to reduce the costs for the installation.

• It improves the hygienic conditions and will raise the living standard of the population

• This system can be installed quickly as compared to gravity system.

THANK YOU !!!THANK YOU !!!