Ashley Cathcart

ORCID: 0000-0001-8620-8045
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About
Contact & Profiles
Research Areas
  • Microplastics and Plastic Pollution
  • Wastewater Treatment and Nitrogen Removal
  • Biotechnology and Related Fields
  • Constructed Wetlands for Wastewater Treatment
  • Anaerobic Digestion and Biogas Production
  • Phosphorus and nutrient management
  • Innovative Human-Technology Interaction
  • Hybrid Renewable Energy Systems
  • Food Waste Reduction and Sustainability
  • Water-Energy-Food Nexus Studies
  • Agriculture Sustainability and Environmental Impact
  • Fecal contamination and water quality
  • Science Education and Perceptions
  • Clinical Nutrition and Gastroenterology

Queen's University Belfast
2020-2023

Agri Food and Biosciences Institute
2021-2023

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...

10.1016/j.spc.2020.12.015 article EN cc-by Sustainable Production and Consumption 2020-12-17

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...

10.3390/agronomy11050836 article EN cc-by Agronomy 2021-04-23

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...

10.1016/j.jenvman.2023.118449 article EN cc-by Journal of Environmental Management 2023-06-28

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...

10.1016/j.clet.2021.100098 article EN cc-by-nc-nd Cleaner Engineering and Technology 2021-04-16

Abstract Production of digestate pellets for fuel has been identified as a promising circular economy approach to provide renewable energy and additional income farms, while at the same time presenting potential divert raw from nutrient‐saturated land reduce risk water quality. Although previous research investigated feasibility pellet production, there little focus on bio‐safety aspects system. Little is currently known about persistence bacteria present in impacts human health those...

10.1111/gcbb.12986 article EN cc-by GCB Bioenergy 2022-07-07
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