Food waste treatment in an anaerobic dynamic membrane bioreactor (AnDMBR): Performance monitoring and microbial community analysis

Roent Dune A. Cayetano, Jong Hun Park, Seoktae Kang, Sang Hyoun Kim

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

The applicability of a dynamic membrane (DM) was examined in the anaerobic treatment of high-strength food waste. A DM was established on woven polyester with a pore size of 50 µm, which achieved a solids retention time to hydraulic retention time ratio of 2.1:12.1. The highest average rate of methane production (1.1 L CH4/L/d) was achieved with an organic loading rate (OLR) of 5.0 g chemical oxygen demand (COD)/L/d. Propionate was the most abundant volatile fatty acid (VFA) for OLRs above 3.1 g/L/d, but concentrations were maintained below 0.9 g/L. Up to 82% of the VFAs in the mixed liquor was reduced in the effluent, implying high methanogenic activity of the DM. Microbial assays confirmed a higher archaeal and bacterial content in the DM than in the mixed liquor at shear velocities above 1.0 cm/s. Methanolinea tarda, which is known to be propionate tolerant, was the predominant archaea in the DM.

Original languageEnglish
Pages (from-to)158-164
Number of pages7
JournalBioresource technology
Volume280
DOIs
Publication statusPublished - 2019 May

Bibliographical note

Funding Information:
The authors would like to acknowledge the financial support of National Research Foundation under “Next Generation Carbon Upcycling Project” (Project No. 2017M1A2A2043150) of the Ministry of Science and ICT, Republic of Korea. This research was also supported by the Yonsei University Research Fund of 2018 (2018-22-0047).

Funding Information:
The authors would like to acknowledge the financial support of National Research Foundation under “Next Generation Carbon Upcycling Project” (Project No. 2017M1A2A2043150 ) of the Ministry of Science and ICT, Republic of Korea. This research was also supported by the Yonsei University Research Fund of 2018 ( 2018-22-0047 ).

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

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