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首页> 外文期刊>Bioresource Technology: Biomass, Bioenergy, Biowastes, Conversion Technologies, Biotransformations, Production Technologies >Effects of bamboo charcoal on fouling and microbial diversity in a flat-sheet ceramic membrane bioreactor
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Effects of bamboo charcoal on fouling and microbial diversity in a flat-sheet ceramic membrane bioreactor

机译:竹炭对平板陶瓷膜生物反应器结垢和微生物多样性的影响

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摘要

Membrane fouling is a problem in full-scale membrane bioreactors. In this study, bamboo charcoal ( BC) was evaluated for its efficacy in alleviating membrane fouling in flat-sheet membrane bioreactors treating municipal wastewater. The results showed that BC addition markedly improved treatment performance based on COD, NH4+-N, total nitrogen, and total phosphorus levels. Adding BC slowed the increase in the trans-membrane pressure rate and resulted in lower levels of soluble microbial products and extracellular polymeric substances detected in the flat-sheet membrane bioreactor. BC has a porous structure, and a large quantity of biomass was detected using scanning electron microscopy. The microbial community analysis results indicated that BC increased the microbial diversity and Aminomonas, Anaerofustis, uncultured Anaerolineaceae, Anaerolinea, and Anaerotruncus were found in higher abundances in the reactor with BC. BC addition is an effective method for reducing membrane fouling, and can be applied to full-scale flat-sheet membrane bioreactors to improve their function. (C) 2017 Elsevier Ltd. All rights reserved.
机译:膜污染是全刻度膜生物反应器的问题。在这项研究中,竹炭(BC)被评估了其在缩小膜生物反应器中的膜污染治疗城市废水中的疗效。结果表明,BC添加显着改善了基于COD,NH 4 + -N,总氮和总磷水平的治疗性能。添加BC减缓跨膜压力速率的增加,导致较低水平的可溶性微生物产品和在平板膜生物反应器中检测到的细胞外聚合物物质。 BC具有多孔结构,使用扫描电子显微镜检测大量的生物质。微生物群落分析结果表明,BC增加了Microbial多样性和AminoMonas,Anaerofustis,未培养的Anaerolineaceae,Anaerolinea和Anaerotruncus在与BC的较高丰度中发现。 BC添加是减少膜污垢的有效方法,可应用于满量程平板膜生物反应器,以改善其功能。 (c)2017 Elsevier Ltd.保留所有权利。

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