Displaying 1 - 10 of 26 in digestion (remove filter)
CEST Proceedings are published under the ISSN 2944-9820.
SusNisia: Circular economy for biogenic residues for the North Aegean – case studies for Islands of Chios and Lesvos
Baur F., Porzig M., Lekkas D.
Topic:
Biowaste
The North Aegean Islands of Chios and Lesvos set recycling goals for organic residues from MSW. Both islands, in line with the National and the Regional Plans for Municipal Waste Management, have selected the approach of mechanical-biological stabilization of MSW in combination with separated...Read more
Biogas production from sunflower residues: effect of pretreatment
(Corresponding) Stamatelatou K., Spyridonidis A., Zhurka M., Vasiliadou I., Lytra V.
Topic:
Biowaste
Sunflower residues are a prominent substrate of renewable source for biogas production during anaerobic digestion (AD). However, due to its recalcitrant structure, pretreatment is necessary to increase its biodegradability. The objective of the present work was to evaluate the effect of the NaOH...Read more
Optimization of decentralized treatment and sanitation of domestic wastewaters via constructed wetlands: The DOMUS_CW project
(Corresponding) Ntaikou I., Antonopoulou G., Vyrides I., Drakopoulos V., Dailianis S., Lyberatos G.
Topic:
Wastewater treatment
The DOMUS_CW project proposes the adoption of a simple, cost efficient and highly effective practice for the treatment of domestic/household wastewaters in rural areas of Balkan and Mediterranean (BalkanMed) countries, i.e. treatment via constructed wetlands (CWs). Two free surface flow CWs...Read more
Biosolids as soil-amendment: evaluation of nutrient leaching in loamy-silty soil
(Corresponding) Venegas M., Fernandez G., Vidal G.
Topic:
Biowaste
Municipal sewage sludge is a by-product of wastewater treatment. The amount of sewage sludge has increased with the construction and expansion of wastewater treatment plants, while stricter policies have limited its disposal. Anaerobic digestion is a worldwide technology used in sewage sludge...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
High-rate anaerobic co-digestion of agro-industrial wastes combined with ammonia recovery and biogas purification
Eftaxias A., Georgiou D., (Corresponding) Diamantis V., Koumara A., Koskinari M., Aivasidis A.
Topic:
Environmental biotechnology and bioenergy
Screened dairy manure, pressure-sterilized animal by-products, and cheese whey were co-digested in a Plug Flow Reactor (PFR) over a period of 150 days. The mixture was characterized by TCOD = 70±8 g/L, SCOD = 26±6 g/L, NH4-N = 1.5±0.3 g/L, TSS = 20±5 g/L, VSS = 18±6 g/L, TS = 33±5 g/L, VS = 26±2 g/...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
IMPROVING INNOVATION CAPACITIES OF PRIVATE AND PUBLIC ACTORS FOR SUSTAINABLE AND PROFITABLE RECYCLING OF LIVESTOCK WASTE
(Corresponding) Antoniou M., Kallikazarou N., Koutsokeras L., Constantinides G., Constantinide E.
Topic:
Water and wastewater reuse
The Mediterranean region is known for its intensive livestock farming, especially for the breeding of pigs and cattle. These activities result in vast amounts of waste that necessitate proper treatment. Inadequate manure treatment can cause eutrophication of surface waters, enrichment of nitrates...Read more
A detailed characterisation of household food waste and the implications of sorting behaviour on potentials for anaerobic digestion and nutrient recovery
(Corresponding) Walk S., Hausbeck G., Körner I.
Topic:
Food waste
This study investigates household food waste (HH FW) generation in two socio-economically different areas in Lübeck, Germany. The applied waste characterisation protocol provided a detailed insight into the generation and separation behavior of FW collected in the municipal collection system. In...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
