Below you can find the proceedings from the latest CEST conferences. You may filter by author or text and further filter by conference.
CEST Proceedings are published under the ISSN 2944-9820.
ANALYSIS OF THE 0.1% AND 1% FLOODBANDS RELATING TO THE NV AREA OF THE CEAHLAU MASSIVE, THE CONFLUENCE SECTOR OF THE BISTRIȚA RIVER WITH HIS TRIBUTARY - BISTRICIORA RIVER
(Corresponding) Hutanu E., Linu-Stoilov V., Paveluc L., Stoleriu C., Mihu_Pintilie A., Grozavu A.
Topic:
Hydrology and water resources
The study aims to outline the flood potential of a mountainous area, in the context of simulating flooded areas, GIS techniques being essential in determining the spatial and probabilistic impact of this type of hydrological phenomena. The resulting modeling highlights the floodplains and the...Read more
Exceptional flood events in the summer of 2018 in Trebes Negel Reprezentativ bazin (Romania)
(Corresponding) Paveluc L., Grozavu A., Cojoc G., Hutanu E.
Topic:
Floods, droughts and water scarcity
In the summer of 2018, the general unstable weather throughout the central and eastern parts of Romania has led to significant rainfall, sometimes exceeding 60 mm/day, and consequently to a massive runoff on the slopes that rapidly increased the flow on tributaries and the main course of the river...Read more
Analysis of the extreme water phenomenon (hydrological drought) in the small river basins in NE Romania
(Corresponding) PAVELUC L., GROZAVU A., HUTANU E., MIHU-PINTILIE A.
Topic:
Hydrology and water resources
This paper presents an analysis of one of the climatic dangers experienced in recent times is the high intensity of the drought phenomenon on small rivers in NE Romania that affects society and ecosystems. As a case study, it is intended to identify statistically significant trends in the minimum...Read more
Keywords:
hydrological drought, small basins, minimum flow, climate change
Production of PHAs with enhanced properties from sugar-based wastewater in a two stage process
FOUSKAKIS G., STERGIOPOULOU E., ALEXANDROPOULOU M., (Corresponding) ANTONOPOULOU G., NTAIKOU I., LYBERATOS G.
Topic:
Environmental biotechnology and bioenergy
The experimental design of the study was based on two different microbial processes, i.e. anaerobic fermentation of a sugar-based wastewater via mixed acidogenic cultures and aerobic polymerization of the produced acids and alcohols for poly-hydroxy-alkanoates (PHAs) production, via enriched...Read more
Keywords:
PHAs, up-flow column reactor, SBR, two stage process
Hydrothermal pretreatment optimization for enhanced anaerobic digestion of willow sawdust
ALEXANDROPOULOU M., PAPADOPOULOU K., (Corresponding) ANTONOPOULOU G., LYBERATOS G.
Topic:
Solid waste management
Lignocellulosic biomass including agricultural and forestry residues such as willow sawdust could be used as feedstock for anaerobic digestion (AD). Hydrolysis has been shown to be the rate-limiting step in the case of AD of such substrates. Although being abundant, since the annual world...Read more
Hydrogen production in a microbial electrolysis cell: the influence of operational parameters
(Corresponding) ANTONOPOULOU G., APOSTOLOPOULOS I., BAMPOS G., BEBELIS S., LYBERATOS G.
Topic:
Environmental biotechnology and bioenergy
In the present study two identical two-chamber microbial electrolysis cells (MECs), fed with an acetate synthetic medium, were used for hydrogen production, using different anodic materials, i.e. commercial carbon fiber paper (CP) and graphite granules (GG). The effects of the applied voltage (i.e...Read more
Comparison of the continuous fermentative hydrogen production efficiency from cheese whey in suspended and attached-biomass growth systems
ALEXANDROPOULOU M., LYBERATOS G., (Corresponding) ANTONOPOULOU G.
Topic:
Wastewater treatment
In the present study, comparison of dark fermentation (DF) efficiency from cheese whey (CW) in an anaerobic UpFlow Column Reactor (AUFCR), filled with a support material for biomass attachment and a Continuous Stirred Tank reactor (CSTR), was assessed. The process efficiency and stability as well...Read more
Keywords:
Cheese whey, Continuous stirred tank reactor, Upflow Column bioreactor, hydraulic retention time
Adsorption of silver on virgin and aged microplastics
(Corresponding) Kalčikova G., Jemec Kokalj A., Marolt G., Žgajnar Gotvajn A.
Topic:
Microplastics in the marine environment
When microplastics enter aquatic ecosystems they are submitted to environmental aging which change their properties. Especially colonization by microorganisms alter their properties in term of density and adsorption properties. Hence the aim of the study was to evaluate the adsorption and leaching...Read more
Pretreatment of antibiotics-contaminated waste biological sludge by ozonation
Boševski I., (Corresponding) Kalčikova G., Derco J., Žgajnar Gotvajn A.
Topic:
Wastewater treatment
Ozonation was studied as a pretreatment method for a waste biological sludge, contaminated with large amounts of globally used antibiotics; tiamulin, levofloxacin and amoxicillin. At the concentrations of over 100 mg L-1, these antibiotics were found to inhibit biogas production (up to 50%), which...Read more
Characterization and toxicity assessment of industrial microplastics made of Bakelite
(Corresponding) Kalčikova G., Rozman U., (Corresponding) Skalar T.
Topic:
Microplastics in the marine environment
Microplastic research has focused mainly on particles made of polymers from ordinary consumer plastic products while industrial plastics has been largely overlooked. However, industrial plastics as Bakelite can be of a great importance due to their extensive use and unknown impact on the...Read more
