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Greenhouse gas emission and its potential mitigation process from the waste sector in a large-scale exhibition

Journal of Environmental Sciences 2015年第5期27卷 44-50页

作者： Ziyang Lou Bernd Bilitewski Nanwen Zhu Xiaoli Chai Bing Li Youcai Zhao Peter otieno School of Environmental Science and Engineering Shanghai Jiaotong University Institute for Waste Management and Contaminated Sites Treatment TU Dresden Faculty of Forestry Geo and Hydro SciencesPratzschwitzer Str.1501796 Pirna Germany State Key Laboratory of Pollution Control and Resource Reuse School of Environmental Science and Engineering Tongji University Institute of Ecological Chemistry Helmholtz Zentrum Müenchen German National Research Centre for Environmental HealthIngolst?dter Landstrasse 1D-85764 Neuherberg Germany Maseno University Department of Chemistry

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 NO-3-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 *** 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.

关键词： GHG emission Mitigation process Waste sector Expo 2010 Shanghai Life cycle assessment

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Design of geodetic SVLBI Satellite Orbit and Its Tracking Network

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geo-Spatial Information Science 2008年第1期11卷 6-12页

作者： WEI Erhu LIU Jingnan KULKARNI M.N. frey Sándor School of geodesy and geomatics Wuhan University 129 Luoyu Road Wuhan 430079 China the Key Laboratory of geospace Environment and geodesy Ministry of Education Wuhan University 129 Luoyu Road Wuhan 430079 China 不详

SVLBI （space very long baseline interferometry） has some important potential applications in geodesy and geodynamics, for which one of the most difficult tasks is to precisely determine the orbit of an SVLBI satellite. This work studies several technologies that will possibly be able to determine the orbit of a space VLBI satellite. Then, according to the types and charac- teristics of the satellite and the requirements for geodetic study and the geometry of the GNSS （GPS, GALILEO） satellite to track the space VLBI satellite, the six Keplerian elements of the SVLBI satellite （TEST-SVLBI） are determined. A program is designed to analyze the coverage area of space of different altitudes by the stations of the network, with which the tracking network of TEST-SVLBI is designed. The efficiency of tracking TEST-SVLBI by the network is studied, and the results are presented.

关键词： SVLBI precise orbit determination orbit design tracking network

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