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Mumbai Sewage
Disposable
Project
Presented By: Bhoomi Ahuja
TABLE OF CONTENT
 Introduction
 Aims & objectives
 Functions
 Benefits
INTRODUCTION
MCGM has implemented integrated Water Supply
& Sewerage Projects (WSSD) namely Bombay-I,
Bombay-II, Bombay-III from 1974 to 1996.
Meanwhile, MCGM has prepared first Master Plan
for sewerage system of Mumbai in 1979. This
Master Plan divided entire Mumbai into 7
sewerage zones as per the topography. MCGM has
accordingly developed sewerage infrastructure
for these 7 sewerage zones and the works of 7
sewage treatment plants were executed under
MSDP-I by year 2003. The sewerage system of
Mumbai is about 130 years old. The present
sewerage system consists of 1830 km long sewer
network, 65412 manholes, 51 pumping stations &
7 treatment plants.
AIMS & OBJECTIVES
The Objectives Of The Bombay Sewage Disposal Project Are To:
1) Strengthen The Capacity Of The Water Supply And Sewerage Department Of The
Municipal Corporation Of Greater Bombay In All Aspects Of The Management Of
The Provision Of Sewerage Services;
2) Sustain The Financial Viability Of The Provision Of Water Supply And Sewerage
Services In Greater Bombay Through Direct Charges To Beneficiaries At Appropriate
Levels; And
3) Improve The Health And Environmental Conditions In Greater Bombay Including
Slum Dwellers.
THE PROJECT INCLUDES
1) The construction of two submarine tunnel outfall sewers at each of worli and
bandra to convey partially treated sewage effluent to the Arabian sea;
2) A pumping station at bandra;
3) Two aerated sewage treatment lagoons at ghatkopar and bhandup;
4) Facilities to prevent siltation in the influent tunnel at ghatkopar;
5) The rehabilitation of the existing ghatkopar tunnel;
6) Measures to improve the structural stability of five existing sewage pumping
stations;
7) Conveyance systems improvements; and 8) slum sanitation schemes.
FUNCTIONS
 The project comprises the detailed engineering design
and the project management of the execution of the
priority works of the Mumbai Sewage Disposal Project
Stage II.
 The main components of this major €800 million
capital works project are:
 Improvements at seven wastewater treatment sites;
 Upgrading and refurbishment at six wastewater
pumping stations;
 Headworks and a major new marine outfall of 3.9m
diameter;
 Construction of pumping stations and transfer
pipelines to the new headworks from the existing
wastewater treatment plants at Malad and Versova;
 Improvements to major sections of the main collector
sewers including 13km of 1.0m to 3.2m diameter new
tunnelled sections.
BENEFITS
 Municipal Corporation of Greater Mumbai intends to undertake Mumbai Sewage Disposal (MSDP)
for improvement of environment in and around Mumbai city.
 Sewage generated from the city currently gets partly into the inadequate collection system for
treatment and the rest into nearby marine water body through drains.
 This paper addresses the cost benefit analysis of MSDP works for better compliance of sewage
treatment and disposal.
 Cost benefit analysis indicates that the investment in sewage treatment is economically
beneficial and will provide immense social, environmental, health and economic benefits.
Monetary values of positive benefits such as avoided health costs, enhanced fish catches and
improved tourism have been quantified.
 The total capital cost of the project is estimated to be about INR 51,510 million and operation
and maintenance cost is about INR 2240.6 million per year.
 The cost benefit analysis indicates that a benefit of about 25,882 million per year can be
achieved due to the implementation of this project.
 Other than these benefits, better marine ecosystem quality; higher property cost; improved
recreational opportunities were not included because of lack of information.
Mumbai sewage
Mumbai sewage

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Mumbai sewage

  • 2. TABLE OF CONTENT  Introduction  Aims & objectives  Functions  Benefits
  • 3. INTRODUCTION MCGM has implemented integrated Water Supply & Sewerage Projects (WSSD) namely Bombay-I, Bombay-II, Bombay-III from 1974 to 1996. Meanwhile, MCGM has prepared first Master Plan for sewerage system of Mumbai in 1979. This Master Plan divided entire Mumbai into 7 sewerage zones as per the topography. MCGM has accordingly developed sewerage infrastructure for these 7 sewerage zones and the works of 7 sewage treatment plants were executed under MSDP-I by year 2003. The sewerage system of Mumbai is about 130 years old. The present sewerage system consists of 1830 km long sewer network, 65412 manholes, 51 pumping stations & 7 treatment plants.
  • 4.
  • 5. AIMS & OBJECTIVES The Objectives Of The Bombay Sewage Disposal Project Are To: 1) Strengthen The Capacity Of The Water Supply And Sewerage Department Of The Municipal Corporation Of Greater Bombay In All Aspects Of The Management Of The Provision Of Sewerage Services; 2) Sustain The Financial Viability Of The Provision Of Water Supply And Sewerage Services In Greater Bombay Through Direct Charges To Beneficiaries At Appropriate Levels; And 3) Improve The Health And Environmental Conditions In Greater Bombay Including Slum Dwellers.
  • 6. THE PROJECT INCLUDES 1) The construction of two submarine tunnel outfall sewers at each of worli and bandra to convey partially treated sewage effluent to the Arabian sea; 2) A pumping station at bandra; 3) Two aerated sewage treatment lagoons at ghatkopar and bhandup; 4) Facilities to prevent siltation in the influent tunnel at ghatkopar; 5) The rehabilitation of the existing ghatkopar tunnel; 6) Measures to improve the structural stability of five existing sewage pumping stations; 7) Conveyance systems improvements; and 8) slum sanitation schemes.
  • 7. FUNCTIONS  The project comprises the detailed engineering design and the project management of the execution of the priority works of the Mumbai Sewage Disposal Project Stage II.  The main components of this major €800 million capital works project are:  Improvements at seven wastewater treatment sites;  Upgrading and refurbishment at six wastewater pumping stations;  Headworks and a major new marine outfall of 3.9m diameter;  Construction of pumping stations and transfer pipelines to the new headworks from the existing wastewater treatment plants at Malad and Versova;  Improvements to major sections of the main collector sewers including 13km of 1.0m to 3.2m diameter new tunnelled sections.
  • 8. BENEFITS  Municipal Corporation of Greater Mumbai intends to undertake Mumbai Sewage Disposal (MSDP) for improvement of environment in and around Mumbai city.  Sewage generated from the city currently gets partly into the inadequate collection system for treatment and the rest into nearby marine water body through drains.  This paper addresses the cost benefit analysis of MSDP works for better compliance of sewage treatment and disposal.  Cost benefit analysis indicates that the investment in sewage treatment is economically beneficial and will provide immense social, environmental, health and economic benefits. Monetary values of positive benefits such as avoided health costs, enhanced fish catches and improved tourism have been quantified.  The total capital cost of the project is estimated to be about INR 51,510 million and operation and maintenance cost is about INR 2240.6 million per year.  The cost benefit analysis indicates that a benefit of about 25,882 million per year can be achieved due to the implementation of this project.  Other than these benefits, better marine ecosystem quality; higher property cost; improved recreational opportunities were not included because of lack of information.