論文

査読有り
2020年11月

A bioelectrochemical-system-based trickling filter reactor for wastewater treatment

Bioresource Technology
  • Qiaochu Liang
  • ,
  • Takahiro Yamashita
  • ,
  • Kazuyoshi Koike
  • ,
  • Norihisa Matsuura
  • ,
  • Ryo Honda
  • ,
  • Hiroe Hara-Yamamura
  • ,
  • Hiroshi Yokoyama
  • ,
  • Ryoko Yamamoto-Ikemoto

315
記述言語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.biortech.2020.123798

© 2020 Elsevier Ltd A bioelectrochemical system (BES)-based trickling filter (TF) reactor was utilized for wastewater treatment. At a COD load of 1.0 g-COD/L/day, effluent chemical oxygen demand (COD) and total nitrogen (TN) were 115 and 108 mg/L, respectively, which were allowed for discharge. Superior performance was achieved at 0.5 g-COD/L/day with a circulation rate of 8 L/h, and both COD and TN removal were >98%. Coulombic efficiency was 11% at 1.0 g-COD/L/day and at most 16% at 0.5 g-COD/L/day. COD removal decreased when the BES was removed, demonstrating that BES improved COD removal capability. In anodic biofilms, exoelectrogenic, facultative, nitrifying, and sulfate-reducing bacteria could coexist. Geobacter for current generation grew inside the biofilm, and bacteria in the middle and outer layers consumed oxygen and degraded organic matter and nitrogen. This BES-based TF reactor may be used for efficient and cost-effective COD and TN removal at high loads without excess sludge removal.

リンク情報
DOI
https://doi.org/10.1016/j.biortech.2020.123798
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/32707501
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85088105072&origin=inward
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85088105072&origin=inward
ID情報
  • DOI : 10.1016/j.biortech.2020.123798
  • ISSN : 0960-8524
  • eISSN : 1873-2976
  • PubMed ID : 32707501
  • SCOPUS ID : 85088105072

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