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Biological performance and fouling mitigation in the biochar-amended anaerobic membrane bioreactor (AnMBR) treating pharmaceutical wastewater
Bioresource Technology ( IF 9.7 ) Pub Date : 2020-01-13 , DOI: 10.1016/j.biortech.2020.122805 Linlin Chen 1 , Peijin Cheng 1 , Lu Ye 1 , Hui Chen 2 , Xiangyang Xu 3 , Liang Zhu 3
Bioresource Technology ( IF 9.7 ) Pub Date : 2020-01-13 , DOI: 10.1016/j.biortech.2020.122805 Linlin Chen 1 , Peijin Cheng 1 , Lu Ye 1 , Hui Chen 2 , Xiangyang Xu 3 , Liang Zhu 3
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Anaerobic membrane bioreactor (AnMBR) is an advanced technology in treating pharmaceutical wastewater, but the membrane fouling limits its development. In this study, the biochar with adsorption capacity of biopolymers was added in AnMBR to investigate its potential in treating pharmaceutical wastewater and alleviating membrane fouling. In the biochar-amended AnMBR, adsorbable organic halogen (AOX) was removed effectively, and more COD was biotransformed into CH. Membrane fouling mitigation was achieved in the third stage with a 56% decrease of average transmembrane pressure difference (TMP) rising rate. The predominant culprit, proteins of extracellular polymeric substance (EPS-proteins) in sludge mixture and cake layer, was reduced significantly. Particularly, the proportion of micromolecular (0.1–0.15 kDa) EPS-proteins in cake layer was 1.5-folds that of the control group. The important bio-foulant genus aggregating on the membrane had less and almost half the relative abundance (16.5%) than that of the control group (30.7%).
中文翻译：
生物炭改性厌氧膜生物反应器 (AnMBR) 处理制药废水的生物性能和污染缓解
厌氧膜生物反应器（AnMBR）是处理制药废水的先进技术，但膜污染限制了其发展。在这项研究中，将具有生物聚合物吸附能力的生物炭添加到AnMBR中，以研究其在处理制药废水和减轻膜污染方面的潜力。在生物炭改性的AnMBR中，可吸附有机卤素（AOX）被有效去除，更多的COD被生物转化为CH。第三阶段实现了膜污染缓解，平均跨膜压差（TMP）上升率降低了56%。主要罪魁祸首是污泥混合物和滤饼层中的细胞外聚合物蛋白质（EPS-蛋白质）显着减少。特别是，饼层中小分子（0.1-0.15 kDa）EPS蛋白的比例是对照组的1.5倍。聚集在膜上的重要生物污垢属的相对丰度（16.5%）比对照组（30.7%）少，几乎一半。
更新日期：2020-01-13
中文翻译：
生物炭改性厌氧膜生物反应器 (AnMBR) 处理制药废水的生物性能和污染缓解
厌氧膜生物反应器（AnMBR）是处理制药废水的先进技术，但膜污染限制了其发展。在这项研究中，将具有生物聚合物吸附能力的生物炭添加到AnMBR中，以研究其在处理制药废水和减轻膜污染方面的潜力。在生物炭改性的AnMBR中，可吸附有机卤素（AOX）被有效去除，更多的COD被生物转化为CH。第三阶段实现了膜污染缓解，平均跨膜压差（TMP）上升率降低了56%。主要罪魁祸首是污泥混合物和滤饼层中的细胞外聚合物蛋白质（EPS-蛋白质）显着减少。特别是，饼层中小分子（0.1-0.15 kDa）EPS蛋白的比例是对照组的1.5倍。聚集在膜上的重要生物污垢属的相对丰度（16.5%）比对照组（30.7%）少，几乎一半。
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