Biogas Production from Steam-Exploded Maize Stover: Results from Continuous Anaerobic Tank Bioreactor Tests
Steam explosion pretreatment of lignocellulosic biomass presents a promising technology for agricultural residues before anaerobic degradation. This study aimed to assess biogas production in continuously stirred tank reactors using steam-exploded maize stover mono-digestion. The continuous digestio...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-03-01
|
| Series: | Fermentation |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2311-5637/9/4/339 |
| _version_ | 1797605502878744576 |
|---|---|
| author | Abbas Shevidi Javier Lizasoain Bernhard Wlcek Susanne Frühauf Andreas Gronauer Alexander Bauer |
| author_facet | Abbas Shevidi Javier Lizasoain Bernhard Wlcek Susanne Frühauf Andreas Gronauer Alexander Bauer |
| author_sort | Abbas Shevidi |
| collection | DOAJ |
| description | Steam explosion pretreatment of lignocellulosic biomass presents a promising technology for agricultural residues before anaerobic degradation. This study aimed to assess biogas production in continuously stirred tank reactors using steam-exploded maize stover mono-digestion. The continuous digestion tests were carried out in four fermenters with a capacity of 150 L under mesophilic and thermophilic conditions. Maize stover was pretreated at 173 °C for 15 min. Four different organic loading rates (OLR) were tested, the biogas and methane production rate was monitored, and parameters such as dry matter (DM), volatile solids (VS), pH, and C:N were analyzed. The results of the tests showed that using steam-exploded maize stover in a continuous system over the range of an OLR from 1.0 to 3.5 kg VS m<sup>–3</sup> d<sup>–1</sup> is feasible with nitrogen as an additive only. The maximum methane yield, 637 L<sub>N</sub> m<sup>–3</sup> d<sup>–1</sup>, was measured under thermophilic conditions with an OLR of 3.5 kg VS m<sup>–3</sup> d<sup>–1</sup>. The trend of an increased gas production rate with an increasing OLR was observed over the range of the applied OLRs, although the average gas yield in the thermophilic mode was higher than it was in the mesophilic one. |
| first_indexed | 2024-03-11T05:02:01Z |
| format | Article |
| id | doaj.art-56b2a768652e444c8920ad888f58a4dd |
| institution | Directory Open Access Journal |
| issn | 2311-5637 |
| language | English |
| last_indexed | 2024-03-11T05:02:01Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fermentation |
| spelling | doaj.art-56b2a768652e444c8920ad888f58a4dd2023-11-17T19:10:29ZengMDPI AGFermentation2311-56372023-03-019433910.3390/fermentation9040339Biogas Production from Steam-Exploded Maize Stover: Results from Continuous Anaerobic Tank Bioreactor TestsAbbas Shevidi0Javier Lizasoain1Bernhard Wlcek2Susanne Frühauf3Andreas Gronauer4Alexander Bauer5University of Natural Resources and Life Sciences, Vienna, Department of Sustainable Agricultural Systems, Institute of Agricultural Engineering, Konrad-Lorenz-Strasse 24, A-3430 Tulln, AustriaUniversity of Natural Resources and Life Sciences, Vienna, Department of Sustainable Agricultural Systems, Institute of Agricultural Engineering, Konrad-Lorenz-Strasse 24, A-3430 Tulln, AustriaUniversity of Natural Resources and Life Sciences, Vienna, Department of Sustainable Agricultural Systems, Institute of Agricultural Engineering, Konrad-Lorenz-Strasse 24, A-3430 Tulln, AustriaUniversity of Natural Resources and Life Sciences, Vienna, Department of Sustainable Agricultural Systems, Institute of Agricultural Engineering, Konrad-Lorenz-Strasse 24, A-3430 Tulln, AustriaUniversity of Natural Resources and Life Sciences, Vienna, Department of Sustainable Agricultural Systems, Institute of Agricultural Engineering, Konrad-Lorenz-Strasse 24, A-3430 Tulln, AustriaUniversity of Natural Resources and Life Sciences, Vienna, Department of Sustainable Agricultural Systems, Institute of Agricultural Engineering, Konrad-Lorenz-Strasse 24, A-3430 Tulln, AustriaSteam explosion pretreatment of lignocellulosic biomass presents a promising technology for agricultural residues before anaerobic degradation. This study aimed to assess biogas production in continuously stirred tank reactors using steam-exploded maize stover mono-digestion. The continuous digestion tests were carried out in four fermenters with a capacity of 150 L under mesophilic and thermophilic conditions. Maize stover was pretreated at 173 °C for 15 min. Four different organic loading rates (OLR) were tested, the biogas and methane production rate was monitored, and parameters such as dry matter (DM), volatile solids (VS), pH, and C:N were analyzed. The results of the tests showed that using steam-exploded maize stover in a continuous system over the range of an OLR from 1.0 to 3.5 kg VS m<sup>–3</sup> d<sup>–1</sup> is feasible with nitrogen as an additive only. The maximum methane yield, 637 L<sub>N</sub> m<sup>–3</sup> d<sup>–1</sup>, was measured under thermophilic conditions with an OLR of 3.5 kg VS m<sup>–3</sup> d<sup>–1</sup>. The trend of an increased gas production rate with an increasing OLR was observed over the range of the applied OLRs, although the average gas yield in the thermophilic mode was higher than it was in the mesophilic one.https://www.mdpi.com/2311-5637/9/4/339steam-explosionmaize stoverbiogasanaerobic digestionCSTR |
| spellingShingle | Abbas Shevidi Javier Lizasoain Bernhard Wlcek Susanne Frühauf Andreas Gronauer Alexander Bauer Biogas Production from Steam-Exploded Maize Stover: Results from Continuous Anaerobic Tank Bioreactor Tests Fermentation steam-explosion maize stover biogas anaerobic digestion CSTR |
| title | Biogas Production from Steam-Exploded Maize Stover: Results from Continuous Anaerobic Tank Bioreactor Tests |
| title_full | Biogas Production from Steam-Exploded Maize Stover: Results from Continuous Anaerobic Tank Bioreactor Tests |
| title_fullStr | Biogas Production from Steam-Exploded Maize Stover: Results from Continuous Anaerobic Tank Bioreactor Tests |
| title_full_unstemmed | Biogas Production from Steam-Exploded Maize Stover: Results from Continuous Anaerobic Tank Bioreactor Tests |
| title_short | Biogas Production from Steam-Exploded Maize Stover: Results from Continuous Anaerobic Tank Bioreactor Tests |
| title_sort | biogas production from steam exploded maize stover results from continuous anaerobic tank bioreactor tests |
| topic | steam-explosion maize stover biogas anaerobic digestion CSTR |
| url | https://www.mdpi.com/2311-5637/9/4/339 |
| work_keys_str_mv | AT abbasshevidi biogasproductionfromsteamexplodedmaizestoverresultsfromcontinuousanaerobictankbioreactortests AT javierlizasoain biogasproductionfromsteamexplodedmaizestoverresultsfromcontinuousanaerobictankbioreactortests AT bernhardwlcek biogasproductionfromsteamexplodedmaizestoverresultsfromcontinuousanaerobictankbioreactortests AT susannefruhauf biogasproductionfromsteamexplodedmaizestoverresultsfromcontinuousanaerobictankbioreactortests AT andreasgronauer biogasproductionfromsteamexplodedmaizestoverresultsfromcontinuousanaerobictankbioreactortests AT alexanderbauer biogasproductionfromsteamexplodedmaizestoverresultsfromcontinuousanaerobictankbioreactortests |