Biogas biogas Production biogas production and Energy Crops biogas energy crops

2012 ◽  
pp. 1097-1145 ◽  
Author(s):  
Christoph Strauß ◽  
Armin Vetter ◽  
A. Von Felde
Keyword(s):  
Biogas Production ◽  
Energy Crops ◽  
Biogas Energy

Biogas biogas Production biogas production and Energy Crops biogas energy crops

2013 ◽  
pp. 170-217
Author(s):  
Christoph Strauß ◽  
Armin Vetter ◽  
A. Von Felde
Keyword(s):  
Biogas Production ◽  
Energy Crops ◽  
Biogas Energy

The environmental effect of substituting energy crops for food waste as feedstock for biogas production

Energy ◽  
2017 ◽  
Vol 137 ◽  
pp. 1130-1143 ◽  
Author(s):  
Lucía Lijó ◽  
Sara González-García ◽  
Jacopo Bacenetti ◽  
Maria Teresa Moreira
Keyword(s):  
Food Waste ◽  
Environmental Effect ◽  
Biogas Production ◽  
Energy Crops

The valuation of malnutrition in the mono-digestion of maize silage by anaerobic batch tests

2008 ◽  
Vol 58 (7) ◽  
pp. 1453-1459 ◽  
Author(s):  
L. Hinken ◽  
I. Urban ◽  
E. Haun ◽  
I. Urban ◽  
D. Weichgrebe ◽  
...  
Keyword(s):  
Trace Elements ◽  
Anaerobic Digestion ◽  
Trace Element ◽  
Biogas Production ◽  
Renewable Energy Sources ◽  
Anaerobic Bacteria ◽  
Trace Element Content ◽  
Energy Crops ◽  
Maize Silage ◽  
Batch Tests

Anaerobic digestion is a technology which is used to produce methane from organic solids and energy crops. Especially in recent years, the fermentation of energy crops has become more and more important because of increasing costs for energy and special benefits for renewable energy sources in Germany. Anaerobic bacteria require macro and micro nutrients to grow. Absence of these elements can inhibit the anaerobic process significantly. In particular mono-substrates like maize or certain industrial wastewater often cannot provide all required nutrients. For this reason this research investigates the influence of substrate and trace elements on anaerobic digestion in detail. Different agricultural anaerobic biomasses are analysed with special regard to their trace element content. Based on these results, the influence of three trace elements (iron, cobalt, and nickel) on anaerobic digestion was studied in anaerobic batch tests at different sludge loading rates and for different substrates (maize and acetate). Biogas production was found to be 35% for maize silage and up to 70% higher for acetate with trace element dosage than in the reference reactor.

Alkaline hydrogen peroxide pretreatment of energy crops for biogas production

2014 ◽  
Vol 68 (7) ◽  
Author(s):  
Karina Michalsk ◽  
Stanisław Ledakowicz
Keyword(s):  
Hydrogen Peroxide ◽  
Biogas Production ◽  
Energy Crops ◽  
Alkaline Hydrogen Peroxide ◽  
High Concentration ◽  
H2o2 Decomposition ◽  
Miscanthus Giganteus ◽  
Alkaline Conditions ◽  
Plant Sources ◽  
H2o2 Pretreatment

AbstractIn this study, the influence of alkaline hydrogen peroxide (H2O2) pretreatment of the three different plant sources: Miscanthus giganteus, Sorghum Moench, and Sida hermaphrodita, for biogas production was investigated. The influence of temperature, reaction time, and H2O2 concentration on the efficiency of biomass degradation and on the further methanogenic fermentation were studied. The results obtained after chemical pretreatment indicate that using H2O2 at alkaline conditions leads to the decomposition of three major structures: lignin, hemicellulose, and cellulose. The best results were achieved for the process performed at 25°C for 24 h with the use of a 5 mass % H2O2 solution. Although the degradation level was very high for all three plant sources, the biogas production from the energy crops pretreated chemically was strongly inhibited by byproducts and the residual oxygen formed after H2O2 decomposition. This fact indicates that alkaline H2O2 pretreatment is a very promising method for plant material degradation for further biogas production, but pretreated biomass must be separated from supernatant before the fermentation process because of the high concentration of inhibitors in the hydrolysates. The best results were obtained for Sida with biogas and methane production of 2.29 Ndm3 and 1.06 Ndm3, respectively.

scholarly journals Kinetics of Diauxic Biogas Production from Energy Crops: Sunflower (Helianthus annus) and Napier Grass (Pennisetum purpureum) with Animal Manure

2021 ◽  
pp. 48-58
Author(s):  
Christian C. Opurum ◽  
Christian O. Nweke ◽  
Christopher E. Nwanyanwu ◽  
Nkemakolam A. Nwogu
Keyword(s):  
Kinetic Parameters ◽  
Biogas Production ◽  
Logistic Function ◽  
Energy Crops ◽  
Napier Grass ◽  
Pennisetum Purpureum ◽  
Second Phase ◽  
Function Model ◽  
Biogas Yield ◽  
Kinetics Of

This study evaluated the kinetics of diauxic-like pattern of biogas production from energy crops, Sunflower (SF) and Napier grass (NG) with cow dung (CD). The tests were performed in a batch reactor (R) operation for 60 days in R1 - R4 and 53 days in R5 - R8 under mesophilic conditions (24 - 36OC). The characteristics of the tested energy crops suggest that they hold prospects for bioenergy production. The cumulative biogas yield/gVS showed that the best performance was R1 with a biogas yield of 15.17 dm3 (0.046 dm3/gVS) followed by R3, 13.90 dm3 (0.041 dm3/gVS) and R2, 11.01dm3 (0.032 dm3/gVS). A significant difference (P ≤ 0.05) in biogas yield was found in the reactors charged with SF/CD as against SF only. In the reactors that exhibited biphasic biogas production profile, two (2) kinetic parameters, K1 and K2 were determined by the bi-logistic function model. It was observed that the predicted values in the second phase (K2) of biogas production were considerably higher than the first phase (K1) in R2 - R5 as opposed to R6 - R8, which implies more biogas yield in phase 2 than phase 1. The results indicate that anaerobic digestion of SF and NG had a strong positive influence on biogas yield, BP, PR and λ1 but not for λ2. The bi-logistic function model suitably fitted the experimental data with a high correlation coefficient (R2) in the range of 0.986 - 0.997. Based on the kinetic parameters, the bi-logistic function model is well suited for the simulation of diauxic-like biogas production process.

scholarly journals Sustainable Use Of Macro-Algae For Biogas Production In Latvian Conditions: A Preliminary Study Through An Integrated Mca And Lca Approach

2014 ◽  
Vol 13 (1) ◽  
pp. 44-56 ◽  
Author(s):  
Laura Pastare ◽  
Francesco Romagnoli ◽  
Dace Lauka ◽  
Ilze Dzene ◽  
Tatjana Kuznecova
Keyword(s):  
Biogas Production ◽  
Sustainable Use ◽  
Integrated Approach ◽  
Energy System ◽  
Algae Biomass ◽  
Biogas Yield ◽  
Beneficial Effects ◽  
Biogas Energy ◽  
Preliminary Study ◽  
Natural Water Bodies

Abstract The study focuses on sustainability evaluation of an algae-based energy system in Latvia with a holistic and integrated approach of multi-criteria analysis combined with life cycle assessment (including a practical side - biogas yield experiments of locally available algae). The study shows potential for sustainable use of algae in Latvian conditions and thus that algal biomass can be utilized for the production of biogas. The most sustainable and feasible scenario of using algae for biogas energy production foresees the collection of algae biomass from natural water bodies. Important beneficial effects through the use of algae are related to avoiding global warming potential (GWP) and eutrophication impacts. Biogas batch experiments carried out with the local macrophyte C.demersum have shown a methane yield of 554 l CH4/kg VS.

Biogas production from energy crops in northern Greece: economics of electricity generation associated with heat recovery in a greenhouse

2016 ◽  
Vol 19 (4) ◽  
pp. 1147-1167 ◽  
Author(s):  
Giorgos Markou ◽  
Mathieu Brulé ◽  
Athanasios Balafoutis ◽  
Michael Kornaros ◽  
Dimitris Georgakakis ◽  
...  
Keyword(s):  
Electricity Generation ◽  
Heat Recovery ◽  
Biogas Production ◽  
Energy Crops ◽  
Northern Greece

Comparison of Reactor Configurations for Biogas Production from Energy Crops

2010 ◽  
Author(s):  
Xinmei Fu ◽  
Nges Ivo Achu ◽  
Emma Kreuger ◽  
Lovisa Bjornsson
Keyword(s):  
Biogas Production ◽  
Energy Crops
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