solid waste management in bangalore city, …wgbis.ces.iisc.ernet.in/energy/lake2010/theme 14... ·...
TRANSCRIPT
SOLID WASTE MANAGEMENT IN BANGALORE CITY, CHALLENGES AND POSSIBILITIES - A CASE STUDY WITH RESPECT TO SELECTED LOCATIONS
Aparna Arun, Student
Shashank Shrishrimal , Student
Antony P. U. HOD, Zoology
Christ University
Challenges of SWM
• Estimation
• Identification
• Collection
• Segregation
• Treatment
• Disposal
Challenges in our city
• Quantity of waste – 3600 tons
• Lack of awareness/civic sense▫ Throwing outside the bin
▫ Burning
• Lack of segregation
• Stagnation of untreated leachate
• Identification of illegal dumpsites
Current state
• 75-90% of waste generated is collected
• 60% is dumped at 60 known and unknown dumping sites around Bangalore
Composition of USW found at dumpsites (TIDE, 2000)
Possibilities
• Processing to be researched more
• Increased frequency of landfills
• Segregation of wastes
• Ground survey of dumpsites on the outskirts
• Biomethenation or vermicomposting of the organic waste
Our Objectives
• Physical survey of specific areas
• Map dumpsites
• Attempt to ascertain the source and age
Applications
• Provide current SWM status of the areas
• Can be fed to GIS
• Ground work for BBMP’s future SWM plans
Bangalore City (with major roads)
Method and Material
Way point
No.
Salient Feature of this way point
Approx. age of the
dumpImpact on environment
66, 67 &
68
Small dumpsite, signs claiming to de-silt
the lake bed and re-do the road7 – 28 days
De-silting is beneficial as it will check the overflowing of the
lake
74
Small dumpsites near settlements and
household waste7 – 28 days Degrading, mostly degrading organic waste and a little plastic
75Small dumpsite in a pit on the way
Within 7 days Plastic may cause asphyxiation in the animals that consume it
76Little accumulation at the road side
More than a weekPlastic will persist because its non-biodegradable and cause
soil degradation
77Plastic waste, roadside
More than 28 days May spread to the surrounding areas
78
Huge dumpsite with burnt garbage
dispersed all over the area, the borders
of the dumpsite were raised which
seemed to keep it hidden from the road More than 28 days,
regularly burnt
Release of toxic gases due to the burning of the garbage,
degradation and choking of the soil, burning of plastic along
with organic waste, destruction of habitat, loss of greenery
79Plastic dispersed in a plantation area
(outside the map) More than 28 daysDisrupting the aesthetics, plastic waste is choking the soil,
causing degradation
80 Chikka Tirupati Within 7 days Malodor (based on the number of animals)
81 No trash -
82 More than 28 days Dumping of garbage into water body
Salient features for observations made in grids 213 - 216
Varathur Area (1st two grids)
Varathur Area (2nd two grids)
Way
point No.
Salient Feature of this way point Approx. age of the dump Impact on environment
002Off Bannerghatta main road to the
left – construction site Habitation loss
003 Dustbin with trash outside it 7 – 28 days Lack of civic sense
004
On the way to the zoo, roadside dump
(mostly plastic)Within 7 days Lots of plastic, harmful for the environment
005Roadside trash
7 – 28 days Chokes the growth of plants and is polluting the
environment
006 Dustbin with trash outside it Within 7 days Lack of civic sense
007
Off the road, to the left in an empty
plot on the way back from the zoo.
Many pipelines were present.
Garbage spread around More than 28 daysMalodor, unhygienic, may breed vectors, soil
degradation
008Construction debris, no garbage
More than 28 days Hindrance to plant growth
009Dustbin with a lot of trash outside it
Within 7 daysLack of civic sense, will be spread by cows, dogs
and wild animals
010
On the Bannerghatta – Anekal road.
Small garbage dump between houses
of a settlement Within 7 daysPollution of the empty site, may cause choking of
animals if they ingest as it is mainly plastic waste
011Looked like a sorting area for plastic
waste Ongoing process No plant growth
012 – 014
Old dumpsites both sides of the road.
Garbage was mixed up and covered
in mudMore than 28 days
Seems to have stopped plant growth may have
increased toxicity of the soil
015Recycling/sorting unit in the
industrial area Ongoing process Beneficial
Salient features for observations made in grids 302 - 305
Bannerghatta Area (1st two grids)
Bannerghatta Area (2nd two grids)
What we discovered…
• Rural – less frequent but larger dumps, mostly organic
• Outside BBMP limits – dug common pits
• Jigni industrial area seemed to have plastic sorting facilities
Conclusion
• Since most of the waste is organic, vermi-culture and biomethenation can be implemented successfully
• Identification of more area for land-filling is becoming a major need
Acknowledgements
We would like to thank a few individuals without whom this project would not have been possible
• Dr. Antony P. U., HOD, Zoology at Christ University for giving us the opportunity to do this project
• Dr. Chanakya H. N. for mentoring us throughout the project
• Shwetmala for guiding us• And the entire team at CST for their invaluable
assistance
Thank you!
Any questions?