Greenhouse gas emission and its potential mitigation process from the waste sector in a large-scale exhibition |
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| Authors: | Ziyang Lou Bernd Bilitewski Nanwen Zhu Xiaoli Chai Bing Li Youcai Zhao Peter Otieno |
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| Institution: | 1 School of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China;2 Institute for Waste Management and Contaminated Sites Treatment, TU Dresden Faculty of Forestry, Geo and Hydro Sciences, Pratzschwitzer Str. 15, 01796 Pirna, Germany;3 State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, Shanghai 200092, China;4 Institute of Ecological Chemistry, Helmholtz Zentrum Müenchen, German National Research Centre for Environmental Health, Ingolstädter Landstrasse 1, D-85764 Neuherberg, Germany;5 Maseno University, Department of Chemistry, P.O. Box 333-40105, Maseno, Kenya |
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| Abstract: | As one of the largest human activities, World Expo is an important source of anthropogenic Greenhouse Gas emission (GHG), and the GHG emission and other environmental impacts of the Expo Shanghai 2010, where around 59,397 tons of waste was generated during 184 Expo running days, were assessed by life cycle assessment (LCA). Two scenarios, i.e., the actual and expected figures of the waste sector, were assessed and compared, and 124.01 kg CO2-equivalent (CO2-eq.), 4.43 kg SO2-eq., 4.88 kg NO3−-eq., and 3509 m3 water per ton tourist waste were found to be released in terms of global warming (GW), acidification (AC), nutrient enrichment (NE) and spoiled groundwater resources (SGWR), respectively. The total GHG emission was around 3499 ton CO2-eq. from the waste sector in Expo Park, among which 86.47% was generated during the waste landfilling at the rate of 107.24 kg CO2-eq., and CH4, CO and other hydrocarbons (HC) were the main contributors. If the waste sorting process had been implemented according to the plan scenario, around 497 ton CO2-eq. savings could have been attained. Unlike municipal solid waste, with more organic matter content, an incineration plant is more suitable for tourist waste disposal due to its high heating value, from the GHG reduction perspective. |
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| Keywords: | GHG emission Mitigation process Waste sector Expo 2010 Shanghai Life cycle assessment |
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