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AHP-Based Decision for the Selection of a Draw Solution for Anaerobic Osmotic Membrane Bioreactors
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2025-01-09 , DOI: 10.1021/acs.iecr.4c03941
Ilknur Yalcin Guney, Sumeyye Hasanoglu, Gulsum Yilmaz, Ilda Vergili, Zeren Beril Gönder, Coskun Aydiner, Yasemin Kaya

The selection of a suitable draw solution (DS) is critically important for the forward osmosis (FO)-based processes since membrane fouling and inhibition caused by DS are the key problems in anaerobic osmotic membrane bioreactor (AnOMBR) systems. This study aims to select a suitable DS for the AnOMBR system treating slaughterhouse wastewater, considering the results of FO performance and the biochemical methane potential (BMP) test. In the first step of the study, the DSs obtained from the literature review were subjected to prescreening, and 18 DSs were evaluated. Eight out of 18 DSs (4 organics and 4 inorganics) were selected using the first analytical hierarchical process (AHP). In the second stage, reverse salt flux selectivity (RSFS), water flux (Jw), and reverse salt flux (Js) values were determined to evaluate the FO performance of the 8 selected DSs by batch FO experiments. A BMP test was performed to investigate the inhibition effect of each DS on the anaerobic performance. The experimental results of batch FO and BMP studies were subjected to a second AHP analysis. The second AHP analysis showed that MgCl2 was the most suitable DS. The autopsy analysis demonstrated that the primary source of fouling on the FO membrane was the accumulation of MgCl2 on the membrane’s surface. Although the fouling on the FO membrane did not seriously damage the membrane structure, it caused the membrane surface to become rougher and more hydrophobic.

中文翻译:


基于 AHP 的厌氧渗透膜生物反应器抽吸解决方案选择决策



选择合适的抽吸溶液 (DS) 对于基于正渗透 (FO) 的工艺至关重要,因为 DS 引起的膜污染和抑制是厌氧渗透膜生物反应器 (AnOMBR) 系统中的关键问题。本研究旨在考虑 FO 性能和生化甲烷电位 (BMP) 测试的结果,为处理屠宰场废水的 AnOMBR 系统选择合适的 DS。在研究的第一步,对从文献综述中获得的 DSs 进行预筛选,并评估了 18 个 DS。18 种 DSs 中的 8 种(4 种有机物和 4 种无机物)是使用第一个分析分层过程 (AHP) 选择的。在第二阶段,确定反向盐通量选择性 (RSFS) 、水通量 (J w) 和反向盐通量 (Js) 值,以通过批量 FO 实验评估 8 种选定 DSs 的 FO 性能。进行 BMP 测试以研究每种 DS 对厌氧性能的抑制作用。批量 FO 和 BMP 研究的实验结果进行第二次 AHP 分析。第二次 AHP 分析表明 MgCl2 是最合适的 DS。尸检分析表明,FO 膜上结垢的主要来源是 MgCl2 在膜表面的积累。虽然 FO 膜上的污垢没有严重破坏膜结构,但它导致膜表面变得更粗糙、更疏水。
更新日期:2025-01-10
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