Waste to Money A feasibility study from the Kirulapone division of the Colombo Municipal Council

1
Waste to Money A feasibility study from the
Kirulapone division of the Colombo Municipal
Council
W. G. A. S. Kumara W. S. S. De Silva M. K. C.
G.Gunathilake 3R initiative
2
Importance of waste composition analysis

• For decision making in,
• Develop effective waste management strategies
• Improve the waste management service
• Improve recycling schemes
• Local authorities can use waste composition
  information to target reuse or recycling schemes

3
Research background (Kirulapona waste ward)

• Highly populated and urbanized area
• Residential population 12,000
• Floating population 20,000
• Waste generation- 08 tons/day
• Total collection directed to land filling
• Total recyclable items collected per week
  (organized collection system) 105kg

4
Objectives

• Determine the aggregate composition of disposal
  solid waste in the selected area
• Assessing the level of recyclables and
  Biodegradables
• Studying the potential of using recyclable items
  in waste as a means of income

5
Methodology

• Waste was collected on every other day
• 2 compactors 5T 3T
• Monday, Wednesday and Friday
• Duration 28th September - 02nd of October,
  2009

6
Methodology- cont

• Waste bags were cut opened and mixed up using a
  front end loader
• Each load was divided in to 5 piles and was mixed
  up separately

7
Methodology- cont

• Three random composite samples of equal volume
  were obtained from each pile and weighed
• Each sample was segregated in to following
  components and weighed separately
• Polythene
• Plastics
• Paper
• Glass
• Metal
• Organic
• Coconut shells
• Others (cloths, wood, ridgifoams, stones etc)

8
Separated Piles
Obtaining a sample
Segregation of waste
Weighing the sample
9
Methodology- cont

• Percentage prevalence of each component was
  calculated on wet basis

10

• Results
• and
• Discussion

11
Composition of waste
3,000 HHs, 8 tons/ day
12
Percentage composition of waste
13
Probable income from marketable recyclables

• More than75 of polythene is recyclable,

14
Discussion

• There is a direct market for 32 of the waste
  under study
• The major component, organic waste, can be
  directed to composting
• Probable daily production of compost is 2.87
  Tons

15
Discussion Cont...

• If managed properly only 10 of the waste is left
  for land filling
• Market prices of recyclables vary with time and
  cleanliness
• Much better market prices are there for clean
  polythene

16
Discussion Cont...

• Mixed waste in polythene bags does not support
  recovery of recyclable items
• Majority of the recyclable items can only be
  recovered by a source separation programme

17
References

• Holmes, J.R., (1984). Managing solid waste in
  developing countries. John Wiley sons ltd .New
  York, USA. PP 1-166
• Khan, I.H., and Ahsan, N. (2003). Textbook of
  solid wastes managements. Statish kumar Jain for
  CBS publishers and distributor. New Delhi
• http//www.wasteaudittool.com/
• www.solidwastedistrict.com/projects/waste_audit.ht
  ml
• www.ene.gov.on.ca/envision/gp/2480e.pdf

18
Acknowledgement

• This work was funded by IDRC as a part of
  research grant to LIRNEasia
• Solid waste department, Municipal Council,
  Colombo
• District 04 ,Kirulapona Division, Municipal
  Council, Colombo
• Sameera , Sadeepa, Deshika , Interns, University
  of Jayawardanapura

19
Thank You