CEST Proceedings are published under the ISSN 2944-9820.
Evaluating production and utilisation pathways of a coupled Anaerobic Digestion (AD) and Gasification/Pyrolysis system using Life Cycle Analysis (LCA).
(Corresponding) Curry R., Cromie T., Somerville G.
Topic:
Life cycle analysis (lca)
Life Cycle Analysis modelling has been applied to an operational Anaerobic Digestion (AD) plant, (utilising Cattle Slurry/Grass Silage), currently producing biogas for electricity and heat production, with digestate going to land-spreading. The aim of the research was to evaluate the environmental...Read more
Anaerobic digestion of long-chain fatty acids (oleic, palmitic, stearic) with whey protein as the emulsifier
(Corresponding) Eftaxias A., Michailidis C., Diamantis V., Aivasidis A.
Topic:
Environmental biotechnology and bioenergy
Long chain fatty acids are suitable for biogas production, however, they are often responsible for process inhibition, due to their high toxicity even at low concentrations. In this study, anaerobic co-digestion of whey protein emulsified with oleic, palmitic or stearic acid were examined in...Read more
Keywords:
anaerobic digestion, biogas, emulsification, fat oil and grease, LCFA
Methane Production and Waste Stabilization in Anaerobic Co-Digestion of Food Waste, Biosolids and Used Cooking Oil
Ematong E., (Corresponding) Rollon A.
Topic:
Food waste
Restaurants, food processing industries and café kitchen generate significant amounts of food waste (FW) and waste cooking oil. Septage treatment also generates large amount of biosolids. This study explores the application of anaerobic process, which generates methane, a renewable energy resource...Read more
Anaerobic co-digestion of poultry manure and used cooking oil for enhanced biogas production
(Corresponding) Eftaxias A., Gkalimanis P., Koskinari M., Koumara A., Diamantis V., (Corresponding) Aivasidis A.
Topic:
Biowaste
Aim of this study was to evaluate the anaerobic co-digestion of diluted poultry manure (DPM) and used cooking oil (UCO). Mixtures of DPM with different UCO dosages (1 to 6% v/v) were prepared using a high-shear emulsifier and digested in batch anaerobic reactors. Increasing the UCO dosage resulted...Read more
Keywords:
anaerobic digestion; pre-treatment; fat oil and grease; poultry manure, biogas
FeBio: R&D of novel 75 kWel AD plant for difficult agricultural residues: horse manure, straw and green waste
(Corresponding) Porzig M., Wern B., Pertagnol J.
Topic:
New solutions for a better and sustainable agriculture
Substrates for biogas production will be provided mainly by residues in future. Without a complex and expensive pre-treatment, solid residues with dry matter (DM) content higher than 30%, e.g. horse manure, husk, grass or straw can only be used in small quantities in a wet anaerobic digestion (AD)...Read more
How does presence of microplastics impact biogas production?
Resnik N., (Corresponding) Žgajnar Gotvajn A., Griessler Bulc T.
Topic:
Microplastics in water treatment: fate, toxicity assessment and removal technologies
The aim of this study was to evaluate the inhibition on the biogas production caused by microplastics (MPs). Wastewater treatment plants (WWTPs) are receptors of MP. After wastewater treating, more than 90% of MP could be retained in the sludge. Anaerobic digestion of the excess sludge can help...Read more
Quantification of feedstocks and outputs for a regional Bioeconomy using the AD Biorefinery concept.
(Corresponding) Curry R., Blaine L.
Topic:
Circular economy and industrial symbiosis
Greenhouse gas emissions (GHG’s) from agriculture in Northern Ireland account for over 27% of regional emissions, as opposed to 7% for the UK overall, leaving the region with challenges in meeting climate abatement targets. The development of a sustainable regional Bioeconomy has been identified as...Read more
Use of Biochemical Methane Potential (BMP) Assays for predicting biogas production from co-digestion of food waste and compostable bags
Kattamis S., (Corresponding) Maragkaki A., Papastefanakis N., Sampathianakis I., Lolos T., Tsobanidis C., Velonia K., Manios T.
Topic:
Solid waste management
Biodegradable plastics have been introduced to the market to substitute petro-based plastics to alleviate plastic pollution. Biochemical methane potential tests were carried out on food wastes (FW), with or without pre-treatment, compostable bag and a mixture of food waste and compostable bag (CB)...Read more
Seasonal variation of the biochemical methane potential of fruit and vegetable wastes produced in the Mediterranean area
Kalogiannis A., Vasiliadou I., (Corresponding) Stamatelatou K.
Topic:
Food waste
Fruit and vegetable wastes produced massively in open markets are a suitable feedstock for biogas production and digestate of high fertilizing value. A first step of designing anaerobic digestion systems for treating these wastes efficiently is to study the impact of the seasonal variation on the...Read more
Keywords:
biogas, fruit and vegetable wastes, Mediterranean, open markets
Spyridonidis A., Vasiliadou I., (Corresponding) Stamatelatou K.
Topic:
Environmental biotechnology and bioenergy
The biological upgrade of biogas to biomethane (CH4 > 90%) is a popular emerging technology, since the produced CO2 is not removed but is converted to biomethane using hydrogen (H2). The initial aim of the present study is the acclimatization of a microbial population derived from a typical...Read more
