Performance of leaching bed reactor converting the organic fraction of municipal solid waste to organic acids and alcohols

Date

2009-02-01

Author

DOĞAN, Evrim
Dunaev, T.
Bayramoğlu, Tuba Hande
DEMİRER, GÖKSEL NİYAZİ

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A lab-scale leaching bed reactor (LBR) was operated to (1) investigate the potential of in-vessel solid-state anaerobic digestion of the organic fraction of municipal solid waste (MSW) and (2) examine the feasibility of using LBRs for hydrolysis/liquefaction and acidification of organic fraction of MSW for maximum total volatile fatty acid (tVFA) and alcohol production. A hydrolysis efficiency of 60% was achieved in the LBR, which was mainly affected by the solids content of organic fraction of MSW, the amount of water addition into the LBR and the channeling through the waste bed. The net mass of tVFA produced was 7000 mg at the end of 80 d. The main individual VFAs produced were acetic and butyric acids and the main alcohol was ethanol. The variations in the by-products of acidification were mainly due to the nature of feed and pH variations in the LBR. LBRs achieved rapid hydrolysis and acidification of organic fraction of MSW. consequently, high hydrolysis yield, chemical oxygen demand removal and tVFA production.

Subject Keywords

Solid-state anaerobic digestion, Ethanol, Butyric acid, Acetic acid, Total volatile fatty acids, Leaching bed reactor

URI

https://hdl.handle.net/11511/45000

Journal

CHEMOSPHERE

DOI

https://doi.org/10.1016/j.chemosphere.2008.10.028

Collections

Department of Environmental Engineering, Article

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Citation Formats

E. DOĞAN, T. Dunaev, T. H. Bayramoğlu, and G. N. DEMİRER, “Performance of leaching bed reactor converting the organic fraction of municipal solid waste to organic acids and alcohols,” CHEMOSPHERE, pp. 797–803, 2009, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/45000.