Browsing by Subject "Anaerobic digestion"
Now showing items 1-16 of 16
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Anaerobic digestion of nut and coffee wastes: different pretreatment techniques to enhance methane production
(NUI Galway, 2022-07-25)Lignocellulosic materials (LMs) are the most abundant residues on the planet and have a great potential for methane production. Nevertheless, the energy potential of LMs for biofuel production is limited by their complex ... -
Anaerobic digestion of selenium-rich wastewater for simultaneous methane and volatile fatty acid production and selenium bioremediation
(NUI Galway, 2022-09-09)This research aimed at investigating the anaerobic digestion (AD) of selenium (Se)-rich and lipid-rich wastewaters via evaluating the operational parameters in sequential and continuous bioreactors. In the first part of ... -
Anaerobic microbial hydrolysis and fermentation of food waste for volatile fatty acid production
(2016-04-28)Landfill, incineration, compositing and anaerobic digestion (AD) are the principal food-waste (FW) treatment methods used in the European Union. Because of the EU landfill directive and waste-management policies on organic ... -
Beyond Lolium perenne: the impact of grassland biodiversity on butyric acid and biomethane production in a forage-based anaerobic biorefinery
(NUI Galway, 2024-02-22)Permanent grassland fields are complex ecosystems consisting of graminoids (e.g., grasses) and forbs (e.g., legumes and herbs), which are crucial for environmental health and food production. Forbs are important players ... -
Bioreactor scalability: laboratory-scale bioreactor design influences performance, ecology, and community physiology in expanded granular sludge bed bioreactors
(Frontiers Media, 2017)Studies investigating the feasibility of new, or improved, biotechnologies, such as wastewater treatment digesters, inevitably start with laboratory-scale trials. However, it is rarely determined whether laboratory-scale ... -
The dairy biorefinery: Integrating treatment processes for cheese whey valorisation
(Elsevier, 2020-08-28)With an estimated worldwide production of 190 billion kg per year, and due to its high organic load, cheese whey represents a huge opportunity for bioenergy and biochemicals production. Several physical, chemical and ... -
Economic analysis of pig manure treatment options in Ireland.
(2012)An economic analysis was performed on treatment options for pig manure in Ireland. Costs were based on a 500 sow integrated pig farm producing 10,500 m3 of manure per year at 4.8 % dry matter. The anaerobic digestion of ... -
Effect of sawdust addition on composting of separated raw and anaerobically digested pig manure
(Elsevier, 2012-06)Manures need the addition of carbon-rich bulking agents to conserve N during composting, which increases the cost of the composting process. The recommended proportion of manure / sawdust, based on a carbon (C): nitrogen ... -
Effect of sawdust addition on composting of separated raw and anaerobically digested pig manure
(Elsevier, 2012)Manures need the addition of carbon-rich bulking agents to conserve N during composting, which increases the cost of the composting process. The recommended proportion of manure/sawdust, based on a carbon (C):nitrogen (N) ... -
Evaluation Of Biogas Production From Anaerobic Digestion Of Pig Manure And Grass Silage
(2012-10-19)The research project evaluated biogas production from anaerobic co-digestion of pig manure (PM) and grass silage (GS) in laboratory- and pilot- scale studies. In addition, improvement of the biogas yield from GS via ... -
Insights into microbial acclimation to salinity in high-rate anaerobic digestion
(NUI Galway, 2024-02-12)In recent years, anaerobic digestion (AD) has been investigated as a suitable biotechnology to treat wastewater at elevated salinities. Nevertheless, when starting up AD reactors with inocula that are not adapted to salinity, ... -
The life-cycle of methanogenic granular biofilms
(NUI Galway, 2019-08-19)Anaerobic granules, sometimes referred to as methanogenic granules, underpin the sustainable treatment of wastewater in high-rate anaerobic bioreactors. They are spontaneously-forming self-immobilised biofilm aggregates ... -
Low-temperature anaerobic digestion as a core technology for the sustainable treatment of municipal wastewater
(2013-11-29)The currently applied paradigm for municipal wastewater treatment in the European Union does not meet basic sustainability criteria. Indeed, it runs counter to the stated goals of recent European Council policies regarding ... -
Low-temperature anaerobic digestion is associated with differential methanogenic protein expression
(Oxford University Press, 2015-04-09)Anaerobic digestion (AD) is an attractive wastewater treatment technology, leading to the generation of recoverable biofuel (methane). Most industrial AD applications, carry excessive heating costs, however, as AD reactors ... -
Potential and optimisation of agriculture-based anaerobic digestion for environmental mitigation of agriculture-associated pollution
(NUI Galway, 2020-12-10)The current work has taken a holistic approach to understanding the potential for mitigation of pollution from agriculture using anaerobic digestion (AD), with a particular focus on reduction of pathogen load to the ... -
Pure culture, co-culture and whole ecosystem investigations of single anaerobes, partnerships and microbial communities in anaerobic digestion
(2017-10-20)Anaerobic digestion (AD) is a multi-stage process whereby biodegradable material is broken down by complex microbial consortia into renewable CH4 in the absence of oxygen during waste and wastewater treatment. Anaerobic ...