Anaerobic membrane bioreactors for resource recovery from municipal wastewater: a comprehensive review of recent advances

2021 ◽  
Author(s):  
A. Robles ◽  
Joaquin Serralta ◽  
Nuria Martí ◽  
Jose Ferrer ◽  
Aurora Seco
Keyword(s):  
Renewable Energy ◽  
Circular Economy ◽  
Paradigm Shift ◽  
Municipal Wastewater ◽  
Resource Recovery ◽  
Membrane Bioreactors ◽  
Clean Water ◽  
Sustainable Society ◽  
Comprehensive Review ◽  
Anaerobic Membrane Bioreactors

In a paradigm shift towards a sustainable society based on the Circular Economy, wastewater treatments are rapidly evolving towards simultaneous recovery and reuse of clean water, renewable energy, and nutrients....

scholarly journals Long-Term Investigation into the Membrane Fouling Behavior in Anaerobic Membrane Bioreactors for Municipal Wastewater Treatment Operated at Two Different Temperatures

Membranes ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 231
Author(s):  
Yi Ding ◽  
Zhansheng Guo ◽  
Zhenlin Liang ◽  
Xuguang Hou ◽  
Zhipeng Li ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
Membrane Fouling ◽  
Municipal Wastewater ◽  
Membrane Bioreactors ◽  
Municipal Wastewater Treatment ◽  
Sludge Flocs ◽  
Microbial Product ◽  
Anaerobic Membrane Bioreactors ◽  
Sludge Particle

In this study, the characteristics of activated sludge flocs were investigated and their effects on the evolution of membrane fouling were considered in the anaerobic membrane bioreactors (AnMBR), which were operated at 25 and 35 °C for municipal wastewater treatment. It was found that the membrane fouling rate of the AnMBR at 25 °C was more severe than that at 35 °C. The membrane fouling trends were not consistent with the change in the concentration of soluble microbial product (SMP). The larger amount of SMP in the AnMBR at 35 °C did not induce more severe membrane fouling than that in the AnMBR at 25 °C. However, the polysaccharide and protein concentration of extracellular polymeric substance (EPS) was higher in the AnMBR at 25 °C in comparison with that in the AnMBR at 35 °C, and the protein/polysaccharide ratio of the EPS in the AnMBR at 25 °C was higher in contrast to that in the AnMBR at 35 °C. Meanwhile, the fouling tendencies measured for the AnMBRs could be related to the characteristics of loosely bound EPS and tightly bound EPS. The analysis of the activated sludge flocs characteristics indicated that a smaller sludge particle size and more fine flocs were observed at the AnMBR with 25 °C. Therefore, the membrane fouling potential in the AnMBR could be explained by the characteristics of activated sludge flocs.

scholarly journals Differences in microbial communities and performance between suspended and attached growth anaerobic membrane bioreactors treating synthetic municipal wastewater

2015 ◽  
Vol 1 (6) ◽  
pp. 800-813 ◽  
Author(s):  
Moustapha Harb ◽  
Yanghui Xiong ◽  
Jeremy Guest ◽  
Gary Amy ◽  
Pei-Ying Hong
Keyword(s):  
Microbial Community ◽  
Microbial Communities ◽  
Municipal Wastewater ◽  
Membrane Bioreactors ◽  
Attached Growth ◽  
Anaerobic Membrane Bioreactors ◽  
And Performance ◽  
Mesophilic Conditions

Two different lab-scale anaerobic membrane bioreactors (AnMBRs) were operated under mesophilic conditions (35 °C) and compared based on their microbial community and microbial foulant characteristics.

scholarly journals The Circular Economy at Enel X

2020 ◽  
pp. 101
Author(s):  
Nicola Tagliafierro
Keyword(s):  
Renewable Energy ◽  
Value Chain ◽  
Circular Economy ◽  
Paradigm Shift ◽  
Business Models ◽  
Renewable Energy Sources ◽  
Life Cycles ◽  
Energy Sources ◽  
Product Portfolio ◽  
Sustainable Business

Enel X is leading the transition toward a sustainable business model, with the circular economy as an important pillar. Using renewable energy sources and materials, extending product life cycles, creating sharing platforms, reuse and regeneration, rethinking products as services. The principles of the circular economy have become essential, considering the paradigm shift overturning the traditional linear economic model. Enel X was one of the first businesses to offer products on the market that concretely apply the five business models of the circular economy and reconsider the entire value chain from a sustainability perspective. This approach is characterized by two core principles: 1.  the first, addressed internally, focuses on the business’s product portfolio, which ranges from “measuring” circularity to identifying solutions for improvement; 2.  the second is directed toward the outside, and especially toward industrial customers and public administrations or end customers, with the goal of evaluating their level of “circularity” and helping them outline a roadmap to circularity.

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