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(0033) Goal-dependent LCA Modelling for Waste Treatment Processes. Jahn, Christina1, Hofstetter, Thomas1, Hungerbuehler, Konrad1, 1 ABSTRACT- Today no systematic differentiation in LCA methodology is made for different types of applications. With respect to LCA applications in waste management this has led to misinterpretation of the results, e.g., due to the careless transfer of plant specific data from one treatment system to another. Six different types of application areas of LCA for waste treatment processes have been identified: Waste modules for product LCAs, eco-efficiency of different end-of-pipe solutions for treatment of waste streams, identification of hot spots for process optimisation in waste treatment plants, evaluation of different waste treatment technologies, evaluation of different waste management strategies (including recycling), indicators for quick ecological evaluation of alternatives in process and product design. Our aim is to set up procedural guidelines for each application category to facilitate the making of LCA studies and to increase transparency in future LCA studies. A clear distinction of different possible goals for LCA for waste treatment processes is given. Recommendations on how to deal with model parameters (functional unit, system boundaries, quality of data, data accessibility, model and data uncertainty, possibilities for streamlining) for each decision problem are given. As those application areas are basically the same for all kind of waste treatment processes (e.g. waste water treatment, flue gas treatment, municipal waste treatment) we work with an industry case study on waste solvent incineration. For some applications it is necessary to combine this information with literature data. Key words: Life-Cycle Assessment, Goal and Scope, Waste Solvent Incineration, Waste Treatment Processes |
