- Anaerobic Digestion and Biogas Production
- Recycling and Waste Management Techniques
- Microplastics and Plastic Pollution
- Biofuel production and bioconversion
- Bioenergy crop production and management
- Electric Vehicles and Infrastructure
- Agriculture Sustainability and Environmental Impact
- Water-Energy-Food Nexus Studies
- Environmental Impact and Sustainability
- Hybrid Renewable Energy Systems
- Vehicle emissions and performance
- Municipal Solid Waste Management
- Sustainable Supply Chain Management
- Renewable energy and sustainable power systems
- Process Optimization and Integration
- Food Waste Reduction and Sustainability
- Catalysts for Methane Reforming
- Global Energy and Sustainability Research
- Chemistry and Chemical Engineering
- Energy and Environment Impacts
- Biodiesel Production and Applications
- Phosphorus and nutrient management
- Mineral Processing and Grinding
- biodegradable polymer synthesis and properties
- Energy, Environment, and Transportation Policies
Queen's University Belfast
2014-2024
The George Institute for Global Health
2020
UNSW Sydney
2020
Scottish Water (United Kingdom)
2016
University College Cork
2009-2011
The high environmental impacts of transport mean that there is an increasing interest in utilising low-carbon alternative energy carriers and powertrains within the sector. While electricity has been mooted as carrier choice for passenger vehicles, mass range vehicle increases, electrification becomes more difficult. This paper reviews shipping, aviation haulage sectors, a (electricity, biofuels, hydrogen, electrofuels) can be used to decarbonise them. Energy were assessed based on their...
Retail electricity markets require development to ensure efficient and equitable pass through of wholesale costs customers. Customer engagement has been heralded as a concept improve the wholesale-to-retail link, better harness flexible demand loads co-ordinate distributed renewable generation storage. This study reviews state-of-the-art customer trends in retail markets, doing so, it first establishes definition context markets. Second, paper identifies that literature on revolves around...
Bio-based plastics are produced from bio-based raw materials such as sugar cane, potatoes, corn, and agricultural slaughterhouse waste. The evolution of the market is affected by stakeholders involved owing to their role in production processes, environmental guidelines purchasing decisions. It therefore imperative understand perceptions order inform development sector. This novel exploratory study investigates opinions three stakeholder groups: professionals plastic processors; university...
Uncertainty surrounding the total cost of ownership, system costs, and life cycle environmental impacts means that stakeholders may lack required information to evaluate risks transitioning low-carbon fuels powertrains. This paper assesses costs well-to-wheel using electricity electrofuels in Heavy Good Vehicles (HGVs) whilst considering input parameter uncertainty. The complex relationship between cost, electrolyser capacity factor, CO2 capture emissions intensity is assessed within a Monte...
Abstract Farm incomes in Ireland are decline and many farmers would operate at a loss the absence of subsidies. Agriculture is responsible for 27% Ireland's greenhouse gas emissions largest contributing sector. Penetration renewable energy heat transport sectors falling short targets, there no clear plan achieving them. The anaerobic digestion grass to produce biogas or biomethane put forward as multifaceted solution, which could help meet reduce dependence on imported energy, provide...
This study investigates the application of a circular economy in rural agricultural setting Northern Ireland, centered around typical anaerobic digestion (AD) plant, showing its potential to provide renewable energy for electricity and transport fuel needs an average dairy farm associated milk processing facilities. It was calculated that AD plant has 22 sized farms equating production, transport, 51,986 litres per day. The feedstock can be provided by local farming community.
This work reviews two mechanical separation technologies (screw press and decanting centrifuge) which could be used in the dairy, beef, pig anaerobic digestion sectors nutrient-vulnerable zones order to improve sustainability of manure digestate management by decreasing agricultural phosphorus loss reducing environmental impact on water quality. Capital operating costs, efficiency throughput, processing separated fractions, including transport impacts biosecurity solids for export, were...
Mechanical separation of anaerobic digestate has been identified as a method to reduce pollution risk waterways by partitioning phosphorus in the solid fraction and reducing its application land. Separators have adjustable parameters which affect efficiency, hence degree phosphorous partitioning, but information on how these performance is limited literature. Two well known technologies were investigated, decanter centrifuge screw press, determine most efficient separation. Counterweight...
Anaerobic digestion provides renewable energy through waste valorisation, but the digestate by-product is underutilised and presents a risk to water quality. Mechanical separation partitions phosphorous into solid fraction further processing fuel pellet can provide an additional source of revenue. Previous economic analyses looked only at aspects system (e.g. operational costs solely) requires investigation determine viability. In this paper, assessment production farm-scale anaerobic plants...
The need to reduce the climate impact of transport sector has led an increasing interest in utilisation alternative fuels. Producing advanced fuels through integration anaerobic digestion and power-to-fuel technologies may offer a solution greenhouse gas emissions from difficult decarbonise modes transport, such as heavy goods vehicles, shipping, commercial aviation, while also offering wider system benefits. This paper investigates energy balance (power-to-methane, power-to-methanol,...
With oil supplies needed for plastic polymer generation reducing, alterative feedstock materials are required producers. Replacement of with other materials, such as fillers or functional additives, is a suitable method. Many these being derived from waste sources, including potential those poultry production. Eggshell and litter (incinerated into ash – PL(Ash)) have been investigated to determine the effect using high loading filler polypropylene. Characterisation both showed each contained...