September 18, 2013 Objective of SWM Plan for Mumbai
Technologically Suitable and Commercially Sustainable solution for managing MSW in Greater Mumbai for planning period of 25 years (2005-2030) Status of SWM in 2005
Generation Collection at Source and Disposa l Transportation
• Residences • House to house collection • Dumping of waste at • Streets and Roads • Street sweeping 3 Landfill sites • Commercials • Community bins (Deonar, Mulund and Gorai) • Beaches • Fleet of municipppal & private • Hotels and restaurants vehicles • Slum colonies • 3 Refuse Transfer Stations • Construction activities (Mahalaxmi, Kurla and Versova) Administrative Zones in Mumbai y Greater Mumbai Municipal Area ( 437 Sq. Km. ) comprises of 24 administrative wards y The wards are aggregattded iitnto 3 regions City region y Zone 1 (Wards A, B, C, D, E) y Zone 2 (Wards F(N),F(S),G(N),G(S))
Western suburbs y Zone 3 (Wards H(E),(H(W) ,K(E) ,K(W)) y Zone 4 (Wards P(N),P(S),R(N),R(C),R(S))
Eastern suburbs y Zone 5 (Wards L, M(E),M(W)) Existing Dumps y Zone 6 (Wards N, S, T) New Site
Transfer Stations Disposal of MSW
y MSW is disposed at three landfill sites by open dumping
Name of Operational Total Area Height of Future life** Site Since (ha) Waste (m)* (years)
Gorai 1972 20 10.2 2 Mulund 1968 25 7.5 2 Deonar 1927 132 808.0 8
y A land admeasuring 141.7 ha. at Kanjur Village was handed over to MCGM by GoI through GoM. Aerial View of Deonar Disposal Site Slums adjacent to Deonar Disposal Site Aerial View of Gorai Disposal Site Mangroves Adjoining Gorai Site Waste Dumping at Gorai Site Waste Dumping at Gorai Site Waste Spilled Over the Mangroves Aerial View of Mulund Disposal Site Residential colonies adjacent to Mulund Disposal Site
Context… y Treatment and Disposal were areas of major deficiencies in SWM of Mumbai y A comprehensive solution addressing long term (25 years) need for management of MSW and C&D waste was required y A detailed study Commenced in July 2005 for development of integrated treatment and disposal plan for Mumbai Aggregate Composition (y(By Ma jor Material Categ ory Reaching Dump pging Grounds)
60
50
40
30 t by Weight by t nn
Perce 20
10
0 Wet Organic Dry Organic Plastic Paper Other Inerts Materials Materials Recyclables
Deonar Gorai Mulund Critical MSW Characteristics Content of high biodegradable waste (>50%), recyclable materials (18. 6%), inerts (12. 5%) High Moisture – about 50% in dry period, up to 65% in monsoon Low calorific value (below 1000 K Cal/Kg) Technologies considered
y Aerobic composting y Refuse derived fuel y Bio‐methanation y Mass Burn (Inci nerati on) y Gasification/Pyrolysis y LdfillLandfill as Bio‐rector y Plasma Pyrolysis Vitrification (PPV) Proven Technology for Large Re liabilit y Filt er Scale Application
Proven Internationally requires Caution before adopting for Mumbai
No Proven Track Record
Waste Suitability Filter
Suitability for Mumbai Waste Technology
Evaluation CbCan be ma de su itblbiAiliFlitable by using Auxiliary Fuel Criteria Unsuitable for Mumbai Waste
Environmentally Accepted Filter
Environmentally and Socially Accepted
Environmental Suspect/Does not Meet MSW Rules 2000 Shortlisted Technologies y Composting y Bio‐methanation y Refuse Derived Fuel for special waste y Bioreactor landfill Projected Population and MSW Generation
Year Population MSW MSW reaching (Million) Generated Dumping Grounds (TPD) (TPD)* 2005 12.63 7,426 6000 2015 14.42 9,358 7500 2025 16.21 11,525 9200 2030 17.10 12,674 10,100
* Uncollected waste and reduction due to recycling estimated @ 20% Strategy for Waste Management
Site Waste Total Closure Available Waste Processing/ Allocation Area Needs for future DisposalTechnology (tons) (ha) (ha) (ha) Mulund 500 25 11 9 Partial Closure (PC) Bio-methanation + Sa. L an dfill Deonar 2000 132 52 80 (PC + Composting + Sa. Landfill
Kanjur 4000 141 nil 120 Composting + Sa. Landfill Gorai - 19. 6 17. 6 2 Full Scientific Closure
Total 6500 317.6 79 211 - Site Management Plan for Gorai y Sheet Piling & site infrastructure y Provide sheet pile barrier on the creek‐ward side to stop tidal intrusion into the waste y Develop ancillary infrastructure of boundary walls, roads and lighting y Relocation of Waste and slope moderation y Shift the waste at site into about 360 m by 360 area y RiRaise the lldfillandfill to structurally recommenddded lllevel of 20 m y Moderate side slopes to 1:3 y Provide leachate collection and transportation system Site Management Plan for Gorai
y Cover for final closure y Close the landfill by encapsulating it in impermeable cover
y Landscape y DlDevelop the site as ldlandscape d open area and a ddiemonstration unit for segregation and in‐house/premises processing of MSW Site Management Plan for Gorai Existing Contours
Creek-side face
Creek-side face Creek-side face
A A’ Site Management Plan for Gorai Cross‐section view at section AA’
Sheet‐pile arrangement and finished levels Creek-side face
Creek-side face
CkCreek-side face
Legend: Sheet Pil e Alignmen t Boundary Wall (4m high) on Landside Finished Top Gorai Landfill –Post Closure Management Plan for Mulund Site
N
LEGEND:
Proposed Access Area to be Partially Closed Road Existing Road MSW to be Relocated Green Belt Finished Top Site for Biomethanation Future Expansion & Emergency Plant Operation Management Plan for Deonar Site
N
LEGEND: Access Road Area to be partially closed Alignment of Bund With Side Drain MSW to be Site for Future Use Finished Top Relocated Area for Composting Leachate Treatment Area
Landfill Area Leachate Collection Area Projected MSW Reaching Kanjur Village Site
Year MSW MSW (TPD) (TPD)
2005 6100 3500 2010 7100 4500 2015 8100 5500 2020 8900 6300 2025 9800 7200 2030 10500 7900
BMC2 H 2.2m
0 BH-8 BH-8 BH-15 BH-21 WATER TANK 100 BMC1 BH-1 WATER TANK WATER
200 2m
300 BH-9 BH-2 BH-16 BH-28 BH-9 BH-22
400
500 5.2m Section H-H 600 BMC8 BH-10 BH-23 BH-3 BH-10 H29 BH BH-17 - 29 700
800 7.5m
900 BH-11 BMC7 BH-4 BH-11 BH-18 BH-24 30 BH - 30 1000
Soft Basalt (Rock) /Soft Basalt(Rock) Grey
Concretions 1100 7.6m
1200 BH-12
BH-5 BH-12 BH-19 BH-25 1300 6.3m
BH-13 BH-13
BH-6 1400 9.3m
1500 BH-14 BH-14 BH-20 BH-26 BH-7 G-L Light Brownish / Brownish BlackishLight Grey clayeysilt Grey MANGROVES AREA H BH-27 Management Plan for Kanjur
Land Fill Area
MSW Processing Area
BH-30 BH-28 BH-29
BMC1
BMC2
WATER TANK BH-21 BH-23 BH-25 BH- 22 BH- 24 BH- 26 BH- 27
WATER TANK MANGROVES AREA
BH-15 BH-16 BH-17 BH-18 BH-19
BH-20
BH-8 BH-10 BH-11 BH-12 BH-13 BH-9 BH-14
BH- 1 BH- 5 BH-6 BH- 2 BH-3 BH-4 BMC7 BH-7
BMC8 Management Plan for Kanjur Lessons y Holistic solution for a practical time horizon in necessary for effective SWM through PPP y Availability of sufficient land area for implementing technologically appropriate solution is ittimportant y Environmental and social issues need to be resolved adeqqyuately and upfront y The qualification criteria must weed out inexperienced bidders y Branding by an internationally recognized player could be very useful to instill confidence