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Autor(en) / Beteiligte
Titel
Combinations of fungal and milling pretreatments for enhancing rice straw biogas production during solid-state anaerobic digestion
Ist Teil von
  • Bioresource technology, 2017-01, Vol.224, p.174-182
Ort / Verlag
England: Elsevier Ltd
Erscheinungsjahr
2017
Quelle
MEDLINE
Beschreibungen/Notizen
  • [Display omitted] •Solid state anaerobic digestion of treated rice straw by combination pretreatments.•Methane yield increased linearly with lignin degradation in fungal pretreatment.•Incubation time during fungal pretreatment strongly affected total methane yield.•Combinations of fungal and milling pretreatment improve the methane yield by 165%.•Milling after fungal treatment increases methane yield compared to prior milling. Rice straw was pretreated by different combinations of physical (milling) and biological (incubation with Pleurotus ostreatus fungus) treatment to improve its biodegradability and biogas production during solid-state anaerobic digestion (SS-AD). Effects of milling (⩽2mm) and incubation time (10, 20 and 30d), on lignin, cellulose, and hemicellulose degradation during fungal pretreatment and methane yield during digestion were assessed by comparison with untreated rice straw. Both incubation time and milling had significant impacts on both lignin removal during fungal pre-treatment and methane yield during digestion. A combination of fungal pretreatment at 30days followed by milling prior to anaerobic digestion resulted in 30.4% lignin removal, the highest selectivity value (the ratio between relative lignin removal and relative cellulose removal) of 4.22, and the highest methane yield of 258L/kgVS. This was equivalent to a 165% increase in methane yield from SS-AD compared to untreated rice straw.
Sprache
Englisch
Identifikatoren
ISSN: 0960-8524
eISSN: 1873-2976
DOI: 10.1016/j.biortech.2016.11.028
Titel-ID: cdi_proquest_miscellaneous_1841800773

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