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首页> 外文期刊>The International Journal of Life Cycle Assessment >Applying Life Cycle Tools and Process Engineering to Determine the Most Adequate Treatment Process Conditions. A Tool in Environmental Policy
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Applying Life Cycle Tools and Process Engineering to Determine the Most Adequate Treatment Process Conditions. A Tool in Environmental Policy

机译:应用生命周期工具和过程工程来确定最适当的处理过程条件。环境政策工具

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Background. The analysis of a wastewater treatment technology, under a expanded boundaries system which includes both the technology and the inputs required for its operation, quantifies the overall environmental impact that may result from the treatment of a wastewater stream. This is particularly useful for environmental policy makers being that a expanded boundaries system tends to provide a holistic view. The former view can be highly enriched with the use of process engineering tools, such as mathematical process modelling, process design, performance assessment and cost optimised models. Main Features. The traditional approach used to assess waste treatment technologies is contrasted with a life cycle analysis (LCA) approach. The optimal design of a granular activated carbon adsorption (GAC) process is used as a model system to demonstrate the advantages of LCA approaches over traditional approaches. Further sections of the paper describe a mathematical framework for the assessment of technologies, design considerations applied in the cost optimised carbon adsorption model, the use of LCA techniques to perform an inventory of all emissions associated to the process system and, some of its environmental impacts. Results. Economic and environmental considerations regarding the optimum process design are introduced as a basis for decision towards the selection and operating conditions of waste-water treatment technologies. Moreover, the use of LCA has revealed that the environmental burden associated with the waste-water treatment may produce a higher environmental impact than one that can be caused by untreated discharges. Conclusion. The paper highlights the string advantages that environmental policy makers may have by combining LCA and process engineering tools. Furthermore, this approach can be incorporated into other existing treatment processes or for process designers.
机译:背景。在扩展的边界系统(包括该技术及其操作所需的输入)下,对废水处理技术的分析量化了废水处理可能对环境造成的总体影响。这对于环境政策制定者尤其有用,因为扩大的边界系统往往会提供整体视图。可以通过使用过程工程工具(例如数学过程建模,过程设计,性能评估和成本优化模型)来高度丰富前一种观点。主要特点。用于评估废物处理技术的传统方法与生命周期分析(LCA)方法形成对比。颗粒活性炭吸附(GAC)工艺的最佳设计用作模型系统,以证明LCA方法优于传统方法的优势。本文的其他部分描述了用于评估技术的数学框架,在成本优化的碳吸附模型中应用的设计考虑因素,使用LCA技术对与过程系统相关的所有排放进行清点的清单,以及对环境的一些影响。结果。介绍了有关最佳工艺设计的经济和环境考虑,作为决定废水处理技术的选择和运行条件的基础。此外,LCA的使用表明与废水处理相关的环境负担可能比未经处理的排放所引起的环境负担产生更高的环境影响。结论。本文强调了通过结合LCA和流程工程工具,环境政策制定者可能具有的一系列优势。而且,该方法可以被结合到其他现有的处理过程中或用于过程设计者。

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