Conference proceedings

Displaying 81 - 90 of 97 in waste (remove filter)

CEST Proceedings are published under the ISSN 2944-9820.

Circular bioeconomy in the sustainable biotransformation of agri-food residues and waste

BUTU M., (Corresponding) RODINO S., (Corresponding) BUTU A.
Topic: 
Waste strategies development
This paper explores the potential of sustainable biotransformation of agri-food residues and waste into a spectrum of marketable ingredients for food and feed and other bio-based products (biochemicals, biomaterials) which is at the heart of the bioeconomy. With over 80% of land covered by farms or...Read more
Keywords: 
bioeconomy, biotransformation, agri-food residues and waste, bio-based products
DOI: 
https://doi.org/10.30955/gnc2023.00217
Conference: 
CEST2023
Paper ID: 
cest2023_00217
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Improved storage and handling of fine recycled concrete aggregates by accelerated carbonation: towards a quantification method

Vogt S., Koeniger L., Brück F., (Corresponding) Weigand H.
Topic: 
Construction and demolition waste
The fines fraction generated by crushing of concrete waste for production of recycled concrete aggregates amounts to 40 - 60 mass-%. Technically, fine recycled concrete aggregates (0 - 2 mm, fRCA) may be employed as a sand substitute in new concrete products. This is, however, hampered by the...Read more
Keywords: 
construction and demolition waste, recycled concrete aggregates, concrete fines, accelerated carbonation
DOI: 
https://doi.org/10.30955/gnc2023.00265
Conference: 
CEST2023
Paper ID: 
cest2023_00265
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Mapping of available biological feedstock streams: The case of agro-industrial waste and by-products in the Region of Central Macedonia - Greece

(Corresponding) Patsios S., Batsioula M., Skoutida S., Geroliolios D., Melas L., Karkanias C., Karanasiou A., Saliakellis P., Malamakis A., Banias G.
Topic: 
Sustainable production and management of biomass
The European Union’s Bioeconomy Strategy aims to the transition to a circular, sustainable bio-based economy. It should be highlighted that bio-based production systems face significant challenges concerning the sustainable availability of the biological materials that are used as feedstocks for...Read more
Keywords: 
Biological feedstocks, Agro-industrial waste and by-products, Material Flow Analysis, Circular economy, Bio-based products
DOI: 
https://doi.org/10.30955/gnc2023.00294
Conference: 
CEST2023
Paper ID: 
cest2023_00294
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Polyhydroxyalkanoates (PHAs) Production from the Liquid Fraction of dried/shredded Food Waste

Filippou K., Bouzani E., Kora E., Ntaikou I., (Corresponding) Papadopoulou K., Lyberatos G.
Topic: 
Bioplastics
An enriched culture of Polyhydroxyalkanoates (PHAs)-forming bacteria was developed using the liquid fraction (condensate) which is generated during drying and shredding of food waste. A mixed enriched culture was used for the production of PHAs, in two Draw-Fill Reactors (DFRs). The culture was...Read more
Keywords: 
PHAs, condensate, food waste, Draw-Fill Reactors (DFRs).
DOI: 
https://doi.org/10.30955/gnc2023.00310
Conference: 
CEST2023
Paper ID: 
cest2023_00310
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Chemical properties of plant-based biochar to be used as soil fertiliser in Galicia (NW Spain)

Ferreiro-Domínguez N., Salman S., (Corresponding) Mosquera-Losada M.
Topic: 
Recycling of materials to new products
The excessive use of chemical fertilisers can cause soil acidification, depletion of soil quality, and biodiversity loss. Alternatively, biochar can improve crop productivity due to its ability to bind macronutrients and micronutrients and also adsorb various contaminants. However, the properties...Read more
Keywords: 
conifers, broadleaves, soil amendment, pyrolysis, forest trees waste
DOI: 
https://doi.org/10.30955/gnc2023.00329
Conference: 
CEST2023
Paper ID: 
cest2023_00329
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A study of the properties of alkali activated cement concrete with potassium carbonate activator.

(Corresponding) Mavroulidou M.
Topic: 
Net Zero emission transition
Alkali-activated cements (AAC) have recently attracted the vivid interest of the civil engineering industry as promising innovative alternatives to Portland Cement (PC) which is responsible for 8% of anthropogenic CO2 emissions. In this context, this paper studies concrete produced using potassium...Read more
Keywords: 
concrete sustainability; alkali-activated cements; potassium carbonate; ground granulated blast furnace slag; waste management
DOI: 
https://doi.org/10.30955/gnc2023.00333
Conference: 
CEST2023
Paper ID: 
cest2023_00333
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Use of food waste as culture media in biocementation for ground improvement applications

Mwandira W., (Corresponding) Mavroulidou M., Gunn M., Gray C.
Topic: 
CIRCULAR ECONOMY AND BIOECONOMY
The paper investigates the use of mixed fruit and vegetable (FV) waste to extract liquid to grow bacteria. The bacteria will be used to induce biocementation of soils and two metabolic pathways are examined. These are the ureolytic pathway and the carbonic anhydrase pathway (which absorbs CO2)...Read more
Keywords: 
GROUND IMPROVEMENT; FRUIT AND VEGETABLE; BIOCEMENTS; FOOD WASTE MANAGEMENT
DOI: 
https://doi.org/10.30955/gnc2023.00336
Conference: 
CEST2023
Paper ID: 
cest2023_00336
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Revealing the Hidden Toxin of the Bottom Ashes from Open Municipal Waste Burning

(Corresponding) Ramadan B., Rosmalina R., (Corresponding) Rachman I., (Corresponding) Matsumoto T.
Topic: 
Heavy metals in the environment
Bottom ashes caused by open waste burning (OWB) contains a large amount of metal, which can harm human health when exposed directly to human or leached into the waterways. This study aims to reveal the metal in the bottom ashes and its potential health impact. Laboratory field studies which consist...Read more
Keywords: 
bottom ashes; metal speciation; open waste burning; risk analysis
DOI: 
https://doi.org/10.30955/gnc2023.00397
Conference: 
CEST2023
Paper ID: 
cest2023_00397
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Experiential learning as a strategy for reducing household food waste among young Greeks

(Corresponding) Chioti D., Sepp H., Nyberg M.
Topic: 
Sustainability & the SDGs
Abstract Background: Food waste is a contemporary challenge with impacts on the environment, economy, and society. Every year 1/3 of the food produced is wasted, where the households are responsible for 53% of the total food waste. In Greece, 87 kg of household food waste are produced per...Read more
Keywords: 
Food waste prevention, SDG’s, experiential learning
DOI: 
https://doi.org/10.30955/gnc2023.00405
Conference: 
CEST2023
Paper ID: 
cest2023_00405
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UTILIZATION OF AGRICULTURAL AND URBAN PLASTIC WASTE REVIEW: INTRODUCTION TO PYROLISIS AND HYDROCARBON REFORMATION

KOUMPAKIS D., (Corresponding) VLACHOKOSTAS C.
Topic: 
Waste-to-energy
Agricultural and urban waste consist of large quantities of biomass and petroleum originated waste. These two categories are rich in hydrocarbons which can be utilized again after their first life cycle. Pyrolysis is a thermochemical process in which solid hydrocarbons decompose in conditions of...Read more
Keywords: 
pyrolysis; hydrocarbons; plastic waste; alternative fuels; biomass
DOI: 
https://doi.org/10.30955/gnc2023.00445
Conference: 
CEST2023
Paper ID: 
cest2023_00445
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