Publication Details |
| Category | Text Publication |
| Reference Category | Journals |
| DOI | 10.3389/fceng.2021.652445 |
Licence  |
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| Title (Primary) | Microbial electrochemical oxidation of anaerobic digestion effluent from treating HTC process water |
| Author | Dai, S.; Korth, B.
; Vogt, C.; Harnisch, F.
|
| Source Titel | Frontiers in Chemical Engineering |
| Year | 2021 |
| Department | ISOBIO; UMB |
| Volume | 3 |
| Page From | art. 652445 |
| Language | englisch |
| Topic | T7 Bioeconomy |
| Supplements | https://www.frontiersin.org/articles/10.3389/fceng.2021.652445/full#supplementary-material |
| Keywords | Microbial electrochemical technologies; wastewater treatment; Electroactive microorganisms; microbial electrochemistry; Microbial fuel cell |
| Abstract | Hydrothermal carbonization (HTC) is a promising technology for chemical and material synthesis. However, HTC produces not only valuable solid coal-like materials, but also yields process water (PW) with high chemical oxygen demand (COD) that requires extensive treatment. Anaerobic digestion (AD) has been used for initial treatment of HTC-PW, but the AD effluent is still high in COD and particles. Here, we show that microbial electrochemical technologies (MET) can be applied for COD removal from AD effluent of HTC-PW. Bioelectrochemical systems (BES) treating different shares of AD effluent from HTC-PW exhibited similar trends for current production. Thereby, maximum current densities of 0.24 mA cm-2 and COD removal of 65.4±4.4% were reached (n=3). Microbial community analysis showed that the genus Geobacter dominated anode biofilm and liquid phase of all reactors indicating its central role for COD oxidation and current generation. |
| Persistent UFZ Identifier | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=24176 |
| Dai, S., Korth, B., Vogt, C., Harnisch, F. (2021): Microbial electrochemical oxidation of anaerobic digestion effluent from treating HTC process water Front. Chem. Eng. 3 , art. 652445 10.3389/fceng.2021.652445 |
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