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School of Civil Engineering How cities manage waste all over the - - PowerPoint PPT Presentation
School of Civil Engineering How cities manage waste all over the - - PowerPoint PPT Presentation
School of Civil Engineering How cities manage waste all over the planet: A global overview through Wasteaware benchmark cities indicators Dr Costas Velis Naxos 2018 6 th International Conference on Sustainable Solid Waste Management 13-16
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Future trends in waste quantities in low-income cities
Source: United Nations, Department of Economic and Social Affairs, Population Division (2011): World Population Prospects: The 2010 Revision.
Factor 1
World population growth
Factor 2
Urbanisation – megacities (2030: 40 megacities – 32 in Global South)
Factor 3
Waste per capita increase with development (GNI, GDP, HDI, etc.)
Source: United Nations, Department of Economic and Social Affairs, Population Division: World Urbanization Prospects, the 2011 and 2014 Revisions. New York, 2012, 2014
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Background to indicators system
Acknowledgements of co-developers: refer to the paper
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Wasteaware: publication and manual
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No. Category Indicator Results 1 Public health – Waste collection Collection coverage 82% 1Q Quality of waste collection service M/H 2 Environmental control – waste treatment and disposal Controlled disposal 0% 2Q Environmental quality of waste treatment and disposal L/M 3 3Rs – reduce, reuse and recycling Recycling rate < 5% 3Q Quality of 3Rs provision L/M
Coverage: both physical and governance aspects Indicators comprise: 4 quantitative + 8 composite qualitative Global applicability: both ‘South’ & ‘North’ Visualise relative performance: using ‘Traffic lights’ system Ready to use: tested in 50 cities in all 6 inhabited continents
Wasteaware: Physical indicators: an example
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New standardised MFA for cities covering informal recycling sector
CVORR project: Complex Value Optimisation for Resource Recovery
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Acceptability – application to date
- Comprehensive benchmarking
system
- Standardised methodology
- World-wide coverage:
accommodates for low income country realities
- Awards: Academic paper wins
2015 ISWA Publication Award and CIWM 2014-15 James Jackson Medal for major contributions to solid waste management.
- Adopted by: Data in UNEP/ ISWA
Global Waste Management Outlook
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Adopted by Population Reference Bureau: World Population Data Sheet
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Wasteaware: benchmark cites indicators: Web-portal about to be launched
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Basic reporting customisable interface
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Traffic-light’ colour coding for each indicator
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Cities dataset: Economic development vs. population
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Waste collection coverage
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Source: GWMO: Wasteaware + University of Leeds
Cities MSW recycling performance
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Wasteaware: informal recycling dominates around the world…
10 20 30 40 50 60 70 80 Monrovia Kampala Maputo Moshi Ghorahi Dar‐es‐Salaam Bamako Lusaka Bishkek Dhaka Nairobi Managua Lahore Quezon City Qena Delhi Kunming Bangalore Sousse Canete Varna Sofia Castries Curepipe Jakarta Buenos Aires Guadalajara Belo Horizonte Cigres Bahrain Athens (GAA) Vitoria‐Gasteiz Belfast Singapore Adelaide Rotterdam San Francisco Tompkins County
Total recycling rate (%) % of total waste recovered by informal sector % of total waste recovered by formal sector
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Recycling quality
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Forthcoming tool to be developed
NEW! Waste Flow Diagrams: Solid waste to marine litter in cities
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