Results 41 to 50 of about 1,010 (149)

Production de spiruline à la ferme : produire de la spiruline à la ferme grâce au digestat et à la chaleur excédentaire d’une installation de biogaz [PDF]

open access: yes, 2015
The development of projects coupling an agricultural anaerobic digestion installation with the production of spirulina is an attractive concept, since the waste streams from the methanisation and from biogas valorization can be used to produce a high ...
Membrez, Yves   +2 more
core   +1 more source

Land Cover Changes Following Biogas Development Across Different Farm Types: A Nationwide Study in France

open access: yesGCB Bioenergy, Volume 17, Issue 10, October 2025.
The French biomethane market is one of the fastest growing in Europe, with farms increasingly using energy cover crops as feedstock for their biogas plants. Our study highlights a diversity of land cover changes following biogas plant implementation, depending on‐farm characteristics and location.
Léa Boros   +5 more
wiley   +1 more source

Adsorption of LCFA on anaerobic sludge under steady state and shock loading conditions: effect on acetogenic and methanogenic activity [PDF]

open access: yes, 2002
Accumulation of LCFA adsorbed onto the biomass was quantified under steady-state and shock conditions in a fixed bed reactor fed with oleic acid. The amount of adsorbed LCFA was more dependent on LCFA concentration than on LCFA loading rate and inhibited
Alves, M. M.   +3 more
core  

Finnish Farmers’ Adoption of Feed Additives for GHG Mitigation in Dairy Farming: Barriers and Perspectives Adoption par les agriculteurs finlandais d'additifs alimentaires pour la réduction des émissions de gaz à effet de serre dans l'élevage laitier : obstacles et perspectives Futtermittelzusätze zur Minderung von Treibhausgasen in der finnischen Milchviehhaltung: Barrieren und Perspektiven

open access: yesEuroChoices, Volume 24, Issue 2, Page 63-71, August 2025.
Summary This study offers valuable insights into farmers’ perspectives on the use of feed additives (3‐NOP) in reducing methane emissions, and highlights associated obstacles that may prevent the accelerated uptake of GHG mitigation measures. Our data originate from a survey of 239 Finnish dairy farmers. While most farmers acknowledge the importance of
Amer Ait Sidhoum   +3 more
wiley   +1 more source

Nutrient balance of a two-phase solid manure biogas plant [PDF]

open access: yes, 2005
So called "dry fermentation" prototype plants for anaerobic digestion of organic material containing 15-50 % total solids show added advantages compared to slurry digestion plants (Hoffman 2001): Less reactor volume, less process energy, less transport ...
Evers, Lars   +5 more
core  

Residues of the transformation of halieutics products: An alternative substrate for energy valorization of wastes by methanisation for a local sustainable development (preliminary results) [PDF]

open access: yesAfrican Journal of Environmental Science and Technology, 2019
The purpose of this study is to evaluate the biogas productivity potential of residues of the transformation of halieutics products. Experiments were conducted in two digesters of PUXIN model of 20 m3, where the temperature is 35°C. Multirae analyser was used to know the composition of biogas produced.
N. Kebe N.   +3 more
openaire   +1 more source

Potential of different composts to improve soil fertility [PDF]

open access: yes, 2006
Composts can influence soil fertility and plant health. These influences can be positive or negative, depending of the quality of the composts. Some practitioners already make use of the positive effects on plant health. For example, they use composts to
Baier, U.   +5 more
core  

A fast extremum-seeking approach for the methanisation of organic waste in an anaerobic bioreactor

open access: yesIFAC-PapersOnLine, 2019
Abstract We consider the AM2 mechanistic mathematical model of an anaerobic bioreactor, where the controlled input is the dilution rate and the measured output is the methane outflow rate. We show that a control strategy based on switching between two dilution rates is able to bring the trajectories close to the optimal steady-state where the output ...
Alejandro Vargas   +2 more
openaire   +1 more source

Integrated process for the production of lipase and methane from olive mill wastewaters [PDF]

open access: yes, 2010
The continuous system for olive oil production can be operated by three and two-phase extraction technologies, diverging in the water supplies. The three-phase extraction process has a slightly better yield, leading to less amount of olive cake but a ...
Alves, M. M.   +2 more
core  

Image analysis, methanogenic activity measurements, and molecular biological techniques to monitor granular sludge from an EGSB reactor fed with oleic acid [PDF]

open access: yes, 2003
Morphological changes in anaerobic granular sludge fed with increasing loads of oleic acid were quantified by image analysis. The combination of this technique with data on the accumulation of adsorbed long chain fatty acid and with the molecular ...
Akkermans, A. D. L.   +8 more
core   +2 more sources

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