Abstract
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 language | English |
|---|---|
| Pages (from-to) | 73-78 |
| Journal | Renewable Energy |
| Volume | 119 |
| Early online date | 6 Dec 2017 |
| DOIs | |
| Publication status | Published - 1 Apr 2018 |
Keywords
- renewable energy
- biomass
- biogas
- algae
- mechanical pretreatment
- anaerobic digestion
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Cristina Rodriguez Nunez
- School of Computing, Engineering and Physical Sciences - Senior Lecturer
Person: Academic