Minimizing membrane bioreactor environmental footprint by multiple objective optimization,Bioresource Technology

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Minimizing membrane bioreactor environmental footprint by multiple objective optimization
Bioresource Technology ( IF 9.7 ) Pub Date : 2020-01-20 , DOI: 10.1016/j.biortech.2020.122824
Giorgio Mannina ₁ , Bing-Jie Ni ₂ , Taise Ferreira Rebouças ₃ , Alida Cosenza ₃ , Gustaf Olsson ₄

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This paper presents a modelling study aimed at minimizing the environmental foot print of a membrane bioreactor (MBR) for wastewater treatment. Specifically, an integrated model for MBR was employed in view of the management optimization of an MBR biological nutrient removal (BNR) pilot plant in terms of operational costs and direct greenhouse gases emissions. The influence of the operational parameters (OPs) on performance indicators (PIs) was investigated by adopting the Extended-FAST sensitivity analysis method. Further, a multi-objective analysis was performed by applying the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS). The results show-up that the sludge retention time is the OP mostly affecting all the investigated PIs. By applying the set of optimal OPs, there was a reduction of 48% and 10% of the operational costs and direct emissions, respectively.

中文翻译：

通过多目标优化最大限度地减少膜生物反应器的环境足迹

本文提出了一项建模研究，旨在最大限度地减少废水处理膜生物反应器 (MBR) 的环境足迹。具体而言，考虑到MBR生物脱氮（BNR）试点工厂在运营成本和直接温室气体排放方面的管理优化，采用了MBR集成模型。采用Extend-FAST敏感性分析方法研究了操作参数（OP）对性能指标（PI）的影响。此外，通过应用理想解相似度优先顺序技术（TOPSIS）进行多目标分析。结果表明，污泥停留时间是对所有研究的 PI 影响最大的 OP。通过应用一组最佳操作规程，运营成本和直接排放量分别减少了 48% 和 10%。

更新日期：2020-01-20

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