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Batch anaerobic digestion of banana waste - energy potential and modelling of methane production kinetics 111
Khan, Muhammad Tahir; Brulé, Mathieu; Maurer, Claudia; Argyropoulos, Dimitrios; Müller, Joachim; Oechsner, Hans.
Different fractions of banana (stalk, peel, and flesh) as well as the whole unpeeled banana were studied in a laboratory Biochemical Methane Potential (BMP) assay. After completion of 35-day digestion at 37°C in 2L-reactors, specific methane yields reached 0.256, 0.322, 0.367 and 0.349 m³/kg VS (volatile solids) for stalk, peel, flesh, and unpeeled banana respectively. Considering the country of Uganda, East Africa, the collection of peels and stalks from banana production would yield a theoretical potential of about 60 GWh of electrical energy per year in biogas plants. In order to verify the suitability of banana fractions to the biogas process, their chemical composition was analyzed, and their methane production kinetics was estimated with exponential...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Energy biogas; Anaerobic digestion; BMP assay; Model; Energy; Methane; Waste.
Ano: 2016 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3244
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Effects of full-scale substrate pretreatment with a cross-flow grinder on biogas production 111
Mönch-Tegeder, Matthias; Lemmer, Andreas; Jungbluth, Thomas; Oechsner, Hans.
The enhancement of the degradation rate of energy crops, agricultural residues and manure by different lab scale pretreatment pathways is shown in previous studies.  In general, the pretreatments resulted in higher degradation efficiencies and an increase in methane yield for lignocellulosic and fibrous biomass.  The major drawback of most of the different pretreatment methods is that either they are not feasible for application in practice or the high energy demand makes them economically inefficient.  The aim of this study was to evaluate the effects of a full-scale mechanical pretreatment with a cross-flow grinder on commonly used energy crops (maize silage, grass silage and rye grain silage) and horse manure. Furthermore, the optimal treatment...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anaerobic digestion; Biogas production; Mechanical pretreatment; Lignocellulosic materials; Horse manure.
Ano: 2014 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2927
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Untersuchungen zum Einfluss der Biogasgärung auf die Keimfähigkeit von Unkraut- und Kulturpflanzensamen unter besonderer Berücksichtigung des Ampfers (Rumex obtusifolius) 21
Schrade, Sabine; Pekrun, Carola; Oechsner, Hans; Claupein, Wilhelm.
Fazit: Die durchgeführten Versuche zeigen, dass durch die Biogasgärung die Keim-fähigkeit von Samen beeinträchtigt wird und somit die Verbreitung von Unkrautsamen vermindert werden kann. Neben Faktoren wie Mikroorganismenaktivität, Schadgasen, die beim Abbau von organischer Substanz entstehen, und dem Samenfeuchtig-keitsgehalt spielten hierbei vermutlich vor allem die Temperatur des Substrats und die Verweildauer der Samen in der Biogasanlage eine Rolle. Berücksichtigt man dies bei der Betriebsweise einer Biogasanlage, kann man davon ausgehen, dass der Unkraut-druck durch die Verbreitung der Unkrautsamen über die Gülleausbringung gesenkt werden kann.
Tipo: Conference paper, poster, etc. Palavras-chave: Weed management.
Ano: 2003 URL: http://orgprints.org/8989/1/P.Schrade.pdf
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