Institut Universitari d'Investigació d'Enginyeria de l'Aigua i Medi Ambient, IIAMA, Universitat Politècnica de València, Camí de Vera s/n, 46022 Valencia, Spain.
Departament d'Enginyeria Química, Escola Tècnica Superior d'Enginyeria, Universitat de València, Avinguda de la Universitat s/n, Burjassot, 46100 Valencia, Spain.
J Environ Manage. 2016 Jan 15;166:45-54. doi: 10.1016/j.jenvman.2015.10.004. Epub 2015 Oct 24.
The objective of this study was to assess the economic and environmental sustainability of submerged anaerobic membrane bioreactors (AnMBRs) in comparison with aerobic-based technologies for moderate-/high-loaded urban wastewater (UWW) treatment. To this aim, a combined approach of steady-state performance modelling, life cycle analysis (LCA) and life cycle costing (LCC) was used, in which AnMBR (coupled with an aerobic-based post-treatment) was compared to aerobic membrane bioreactor (AeMBR) and conventional activated sludge (CAS). AnMBR with CAS-based post-treatment for nutrient removal was identified as a sustainable option for moderate-/high-loaded UWW treatment: low energy consumption and reduced sludge production could be obtained at given operating conditions. In addition, significant reductions can be achieved in different aspects of environmental impact (global warming potential (GWP), abiotic depletion, acidification, etc.) and LCC over existing UWW treatment technologies.
本研究旨在评估淹没式厌氧膜生物反应器 (AnMBR) 在中/高负荷城市废水 (UWW) 处理方面与基于需氧的技术相比的经济和环境可持续性。为此，采用稳态性能建模、生命周期分析 (LCA) 和生命周期成本核算 (LCC) 的组合方法，将 AnMBR（与基于需氧的后处理相结合）与好氧膜生物反应器 (AeMBR) 和传统活性污泥 (CAS) 进行了比较。对于营养物去除，AnMBR 与基于 CAS 的后处理相结合被确定为中/高负荷 UWW 处理的可持续选择：在给定的操作条件下，可以获得低能耗和减少污泥产量。此外，与现有的 UWW 处理技术相比，在不同的环境影响方面（全球变暖潜能值 (GWP)、非生物耗竭、酸化等）和 LCC 方面可以实现显著的减少。
