Improvement of methane production from P. canaliculata through mechanical pretreatment

C. Rodriguez, A. Alaswad, Z. El-hassan, A.g. Olabi

Research output: Contribution to journalArticlepeer-review


In order to increase the methane yield from biomass, this paper investigates the mechanical pretreatment effect of a Hollander beater on the anaerobic digestion process of Pelvetia canaliculata macroalgae using a response surface methodology (RSM). Higher values on methane yield were obtained at lower F/I ratios, with an increase up to 2.5-fold at an F/I value of 0.3. A multi-objective optimization study was carried out with the aim of maximizing the methane yield while minimizing the pretreatment time. An optimum methane yield of 283 ml/gVS was obtained for 50 min pretreatment time and a ratio F/I of 0.3, which represents an increase of 45% compared to non-pretreated algae.

Original languageEnglish
Pages (from-to)73-78
JournalRenewable energy
Early online date6 Dec 2017
Publication statusPublished - 1 Apr 2018


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