Two-phase anaerobic digestion for biogas production from dairy effluent—CSTR and ABR in series

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Abstract

Anaerobic digestion of low-strength dairy waste water has been used for the production of biogas. A two-phase pilot scale process had been established within 90 d using a 1 m3continuous stirred tank reactor (CSTR) and a 200 l anaerobic baffled reactor (ABR) in series. The system was fed at constant retention time of 1.6 d and with changing feed strengths resulting in various organic loading rates between 1.25-4.50 g/(l d). The average COD removal was 82% with a biogas yield of 0.26 l/gCOD. The combination of CSTR and ABR overcame the disadvantages of both reactor types. By further optimization the chosen system is able to replace conventional waste water treatment system used nowadays.
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Anaerobic digestion of low-strength dairy waste water has been used for the production of biogas. A two-phase pilot scale process had been established within 90 d using a 1 m3continuous stirred tank reactor (CSTR) and a 200 l anaerobic baffled reactor (ABR) in series. The system was fed at constant retention time of 1.6 d and with changing feed strengths resulting in various organic loading rates between 1.25-4.50 g/(l d). The average COD removal was 82% with a biogas yield of 0.26 l/gCOD. The combination of CSTR and ABR overcame the disadvantages of both reactor types. By further optimization the chosen system is able to replace conventional waste water treatment system used nowadays.
Original languageEnglish
Title of host publicationProceedings of the 24th European Biomass Conference and Exhibition
Number of pages5
Volume2016
PublisherETA - Florence Renewable Energies
Publication dateJun 2016
Edition24thEUBCE
Pages1698-1702
StatePublished - Jun 2016
Publication categoryResearch
Peer-reviewedYes
Event24th European Biomass Conference and Exhibition - RAI Amsterdam Exhibition and Convention Centre, Amsterdam , Netherlands
Duration: 6 Jun 20169 Jun 2016
Conference number: 24
http://www.eubce.com/home.html

Conference

Conference24th European Biomass Conference and Exhibition
Nummer24
LocationRAI Amsterdam Exhibition and Convention Centre
LandNetherlands
ByAmsterdam
Periode06/06/201609/06/2016
Internetadresse
SeriesEuropean Biomass Conference and Exhibition Proceedings
ISSN2282-5819

    Research areas

  • Anaerobic process, Biogas, Waste water treatment
ID: 263139505