Comparison of microwave thermohydrolysis and liquid hot water pretreatment of energy crop Sida hermaphrodita for enhanced methane production

Marcin Zieliński , Marta Kisielewska , Magda Dudek , Paulina Rusanowska , Anna Nowicka , Mirosław Krzemieniewski , Joanna Kazimierowicz , Marcin Dębowski


The study was aimed to compare the methane potential from the silage of Sida hermaphrodita mixed with cattle manure pretreated by microwave (MW) thermohydrolysis with liquid hot water (LHW) pretreatment. It was illustrated that both pretreatment methods significantly improved degradation of the lignocellulosic structure and improved the methane production. The maximum methane production of MW pretreated biomass was 590 NL/kg VS at 150 °C and 15 min with an improvement of 39.1% to an untreated sample. In turn, LHW treatment provided the maximum methane production of 575 NL/kg VS with the same pretreatment conditions. The net energy output significantly higher than calculated for the control sample was achieved only for MW pretreatment at 150 °C and 15–30 min. In other variants, pretreatment step needed higher energy input than the net energy gain from methane production
Author Marcin Zieliński
Marcin Zieliński,,
, Marta Kisielewska
Marta Kisielewska,,
, Magda Dudek
Magda Dudek,,
, Paulina Rusanowska
Paulina Rusanowska,,
, Anna Nowicka
Anna Nowicka,,
, Mirosław Krzemieniewski
Mirosław Krzemieniewski,,
, Joanna Kazimierowicz (FCEE / DTSEE)
Joanna Kazimierowicz,,
- Department of Technologies and Systems in Environmental Engineering
, Marcin Dębowski
Marcin Dębowski,,
Journal seriesBiomass & Bioenergy, [Biomass and Bioenergy], ISSN 0961-9534, e-ISSN 1873-2909, [1873-2909], (N/A 100 pkt)
Issue year2019
Publication size in sheets0.7
Article number105324
Keywords in EnglishEnergy crop, Virginia mallow, Lignocellulosic biomass, Liquid hot water pretreatment, Microwave radiation, Biomethane
ASJC Classification1102 Agronomy and Crop Science; 1107 Forestry; 2105 Renewable Energy, Sustainability and the Environment; 2311 Waste Management and Disposal
Internal identifierROC 19-20
Languageen angielski
Score (nominal)100
Score sourcejournalList
ScoreMinisterial score = 100.0, 12-02-2020, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2018 = 1.26; WoS Impact Factor: 2018 = 3.537 (2) - 2018=4.062 (5)
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