Input-dependent life-cycle inventory model of industrial wastewater-treatment processes in the chemical sector.
作者： Annette Köhler , Stefanie Hellweg , Ercan Recan , Konrad Hungerbühler
DOI: 10.1021/ES0617284
关键词:
摘要: Industrial wastewater-treatment systems need to ensure a high level of protection for the environment as whole. Life-cycle assessment (LCA) comprehensively evaluates environmental impacts complex treatment systems, taking into account from auxiliaries and energy consumption well emissions. However, application LCA is limited by scarcity wastewater-specific life-cycle inventory (LCI) data. This study presents modular gate-to-gate model industrial wastewater purification in chemical related sectors. It enables calculation parameters function composition technologies applied. Forthis purpose, data on auxiliaries' consumption, composition, process was collected industry. On this basis, causal relationships between input, emissions, technical inputs were identified. These translated generic model. Generic site-specific ranges LCI are provided following processes: mechanical-biological treatment, high-pressure wet-air oxidation, nanofiltration, extraction. The input- technology-dependent inventories help bridge gaps where primary not available. Thus, they substantially perform an associated industries, which may be used, instance, technology choices.
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