Istanbul Technical University, Civil Engineering Faculty, Environmental Engineering Department, Ayazaga Campus, Maslak, 34469, Istanbul, Turkey.
Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, University of Gävle, SE-801 76, Gävle, Sweden.
Water Res. 2018 Nov 15;145:518-530. doi: 10.1016/j.watres.2018.08.061. Epub 2018 Aug 29.
Life cycle assessment (LCA) is a beneficial tool to evaluate the performance of wastewater treatment plants (WWTPs) and to compare different upgrading options. The main objective of this study is to investigate the environmental impact of upgrading options of a preliminary WWTP in Istanbul, Turkey. The preliminary plant currently consists of mechanical treatment units and various upgrading options including primary treatment and high-rate activated sludge system (HRAS) process as well as the addition of food waste to wastewater were compared. Results showed that the baseline scenario (S0) had worse performance than all future scenarios (S1-3) except for climate change. The scenario of adding food waste to wastewater (S3) has the best performance in climate change, terrestrial acidification, terrestrial ecotoxicity and fossil depletion. Increased addition of food waste was also tested in the sensitivity analysis, and major improvements were obtained especially in climate change and terrestrial ecotoxicity.
生命周期评估（LCA）是评估废水处理厂（WWTP）性能和比较不同升级方案的有益工具。本研究的主要目的是研究土耳其伊斯坦布尔初步 WWTP 升级方案的环境影响。目前，初步工厂由机械处理单元和各种升级方案组成，包括一级处理和高负荷活性污泥系统（HRAS）工艺，以及将食物垃圾添加到废水中。结果表明，与所有未来情景（S1-3）相比，基线情景（S0）的表现较差，除气候变化外。向废水中添加食物垃圾的情景（S3）在气候变化、陆地酸化、陆地生态毒性和化石资源枯竭方面表现最佳。在敏感性分析中还测试了增加食物垃圾的添加量，特别是在气候变化和陆地生态毒性方面取得了重大改进。
