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A methodology for analyzing the cross media life-cycle environmental impacts of optimal solid waste management strategies: Comparison of global and local model domains with assessment of air quality impacts.

机译:分析最佳固体废物管理策略对跨媒体生命周期环境影响的方法:比较全球和本地模型域并评估空气质量影响。

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摘要

Management of municipal solid waste (MSW) results in changes in worldwide pollutant emissions to varying levels depending factors such as the geography of the collection area, the extent to which recycling programs are implemented and the net effect of recycled product manufacturing when considering offsets obtained from reduced virgin manufacturing. These worldwide impacts are due to emissions associated with producing transportation fuels used for MSW management activities, producing electric generating fuels to supply the electricity used by various MSW related activities and global effects of virgin and remanufacturing facilities.; Life cycle inventory (LCI) techniques can be used to examine the total emissions associated with a system defined to encompass any specific set of activities. In this research, a linear programming (LP) model is used to examine the optimal behavior of MSW management strategies from minimum cost, energy consumption and environmental emissions standpoints. The model coefficients are derived from a set of process models which define the characteristics of the MSW management system as well as various underlying processes such as electric lower generation. In addition to determining the global emissions associated with various cost optimal MSW management strategies, the model allows the user to define regional characteristics to determine the local impacts of implementing global cost and LCI optimal solutions. The model also allows regionally optimal solutions to be examined. An air quality model is used to map LP solution emissions into space and time to examine the possible impacts of global and regional optimal MSW management strategies on ambient CO and PM concentrations.; Results show that the applicability of globally optimal solutions to regional emissions is highly dependant on what facilities are located inside the target air shed and the way in which these facilities change their operating characteristics in response to increasing levels of recycling. For example, regions that contain no virgin manufacturing or remanufacturing facilities suffer a slight increase in net regional emissions when globally optimal aggressive recycling programs are implemented due to increased collection and recyclables transportation emissions. However, these emission increases result in a very small impact on the ambient concentration of CO and PM.
机译:城市固体废物(MSW)的管理导致全球污染物排放量变化到不同水平,具体取决于各种因素,例如收集地区的地理位置,实施回收计划的程度以及考虑到从中获得的补偿后回收产品制造的净效应减少原始制造。这些全球影响归因于与生产用于城市生活垃圾管理活动的运输燃料,生产发电燃料以供应各种城市生活垃圾相关活动所使用的电力有关的排放,以及原始和再制造设施的全球影响。生命周期清单(LCI)技术可用于检查与定义为涵盖任何特定活动集的系统相关的总排放量。在这项研究中,线性规划(LP)模型用于从最低成本,能耗和环境排放的角度检查城市生活垃圾管理策略的最佳行为。模型系数是从一组过程模型中得出的,这些过程模型定义了MSW管理系统的特征以及各种基础过程(例如,发电量较低的过程)。除了确定与各种成本最佳MSW管理策略相关的全球排放量之外,该模型还允许用户定义区域特征,以确定实施全球成本和LCI最佳解决方案的本地影响。该模型还允许检查区域最佳解决方案。空气质量模型用于将LP解决方案的排放映射到空间和时间,以检查全球和区域最佳MSW管理策略对环境CO和PM浓度的可能影响。结果表明,针对区域排放的全球最佳解决方案的适用性在很大程度上取决于目标风棚内的设施以及这些设施如何根据再循环水平的提高而改变其运行特性。例如,当实施全球最佳的积极回收计划时,由于收集和可循环利用的运输排放量增加,没有原始制造或再制造设施的区域的净区域排放量会略有增加。但是,这些排放物的增加对CO和PM的环境浓度影响很小。

著录项

  • 作者

    Dumas, Robert Daniel.;

  • 作者单位

    North Carolina State University.;

  • 授予单位 North Carolina State University.;
  • 学科 Environmental Sciences.; Engineering Civil.; Engineering Environmental.; Engineering Sanitary and Municipal.
  • 学位 Ph.D.
  • 年度 1999
  • 页码 695 p.
  • 总页数 695
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 X1;TU;X5;TU;
  • 关键词

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