Feasibility of anaerobic digestion from bioethanol fermentation residue

Jeong Hoon Park, Sang Hyoun Kim, Hee-Deung Park, Dong Jung Lim, Jeong Jun Yoon

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The focus of this study was the reuse of red algal ethanol fermentation residue as feedstock for anaerobic digestion. Levulinic acid and formic acid, the dilute-acid hydrolysis byproducts, inhibited methanogenesis at concentrations over 3.0 and 0.5. g/L, respectively. However, the inhibition was overcome by increasing inoculum concentration. A series of batch experiments with the fermentation residue showed increased methane yield and productivity at higher inoculum concentration. The maximum methane conversion rate of 84.8% was found at 5. g COD/L of fermentation residue at 0.25. g COD/g VSS of food-to-microorganism (F/M) ratio. The red algal ethanol fermentation residue can possibly be used as a feedstock in anaerobic digestion at appropriate concentration and F/M ratio.

Original languageEnglish
Pages (from-to)177-183
Number of pages7
JournalBioresource Technology
Volume141
DOIs
Publication statusPublished - 2013 Aug 1

Fingerprint

Bioethanol
Anaerobic digestion
Fermentation
fermentation
formic acid
Methane
Microorganisms
Feedstocks
ethanol
Ethanol
microorganism
methane
Acids
food
acid
Formic acid
methanogenesis
Byproducts
hydrolysis
Hydrolysis

Keywords

  • Anaerobic digestion
  • Formic acid
  • Inhibition
  • Levulinic acid
  • Red algae

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Waste Management and Disposal

Cite this

Feasibility of anaerobic digestion from bioethanol fermentation residue. / Park, Jeong Hoon; Kim, Sang Hyoun; Park, Hee-Deung; Lim, Dong Jung; Yoon, Jeong Jun.

In: Bioresource Technology, Vol. 141, 01.08.2013, p. 177-183.

Research output: Contribution to journalArticle

Park, Jeong Hoon ; Kim, Sang Hyoun ; Park, Hee-Deung ; Lim, Dong Jung ; Yoon, Jeong Jun. / Feasibility of anaerobic digestion from bioethanol fermentation residue. In: Bioresource Technology. 2013 ; Vol. 141. pp. 177-183.
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