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Carbon Footprint of Municipal Solid Waste in Greater Bangalore |
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1Energy and Wetlands Research Group, Centre for Ecological Sciences [CES], Indian Institute of Science, Bangalore – 560012, India.
2Faculty of Architecture, Unversity of Melbourne, Australia
*Corresponding author: cestvr@ces.iisc.ernet.in
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METHOD
Stratified random survey of households in select wards of Bangalore city through a structured and pre-validated questionnaire was undertaken during August-December 2011. The aim of the questionnaire is to collect information about communityattitude towards waste management behaviors(disposal and separation of waste). Figure 2 illustrates the spatial spread of 1967 households covering 138 wards. The survey considered various parameters such aswaste collection, time, frequency, number of persons involved in waste collection, collection time, size of bins, distance of the bin from house, bin clearance time, transportation of waste, landfill site, and distance of transportation of waste. Analysis was done to compute 1) share of biodegradable waste -wardwise, 2) ward-wise per capita waste, 3) GHG emissions – wardwiseIn addition, the per capita generation rate from the population and quantity of MSW generated taken into account using equation 1 and methane emission is computed using equation 2.
Waste generation (gram/capita/day) =
Quantity of household waste (gram/day)/Population(capita) ……….1
The CH4 emission from the HSW is calculated as below;
CO2 equivalent emission= W* EF … …….2
Where, W is ward-wise organic waste (gram/day); EF is the emission factor (0.016Gg/Gg of waste for methane and 2.25 Gg/Gg of waste for carbon dioxide).
Figure 2: Spatial distribution of samples
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Citation : Gouri Kulkarni, Vishnu Bajpai, Sun Sheng Han and Ramachandra. T.V, 2012. Carbon Footprint of Municipal Solid Waste in Greater Bangalore., Proceedings of the LAKE 2012: National Conference on Conservation and Management of Wetland Ecosystems, 06th - 09th November 2012, School of Environmental Sciences, Mahatma Gandhi University, Kottayam, Kerala, pp. 1-8.
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