CEST Proceedings are published under the ISSN 2944-9820.
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
Multivariate Analysis of Large µ-FTIR Data Sets in Search of Microplastics
(Corresponding) Wander L., Vianello A., Vollertsen J., Braun U., Paul A.
Topic:
Microplastics in the marine environment
µ-FTIR spectroscopy is a widely used technique in microplastics research. It allows to simultaneously characterize the material of the small particles, fibers or fragments, and to specify their size distribution and shape. Modern detectors offer the possibility to perform two-dimensional imaging of...Read more
From Refuse to Resource: E-Plastic as Building Material
(Corresponding) Medina R., Latina H.
Topic:
Electric and electronic waste
The pursuit of the sustainable development goal of responsible consumption and production requires innovative multi-disciplinary approaches. These goals are achieved in the present work with the use of granulated plastic made from waste electronic and electrical equipment (WEEE) panels as a...Read more
Biotreatment of Brewery Wastewater Using the Filamentous Cyanobacterium Leptolyngbya sp.
Papadopoulos K., Economou C., Moustaka-Gouni M., Tekerlekopoulou A., Aggelis G., (Corresponding) Vayenas D.
Topic:
Wastewater treatment
Brewery wastewater is generated from the beer brewing process in large amounts (4-8 m3 per m3 of beer produced). Brewery wastewater consists of high organic matter content, significant nitrogen and phosphorus concentrations and easily biodegraded compounds. Even though most biological treatment...Read more
Printing ink wastewater treatment using electrocoagulation in lab- and pilot-scale
Papadopoulos K., Argyriou R., Economou C., Tatoulis T., Tekerlekopoulou A., (Corresponding) Vayenas D.
Topic:
Wastewater treatment
Packaging paper wastewaters, stemming mainly from the dyeing sector of the production process (where printing inks are utilized), are characterized by high concentrations of organic matter, intense color and almost zero biodegradability factor. These physicochemical characteristics, in combination...Read more
Keywords:
printing ink wastewater; electrocoagulation; chemical oxygen demand; color
Valorisation of waste polyethylene by blending with ethylene-vinyl acetate and incorporation of a new type of compatibilizer
(Corresponding) Simon-Stőger L., Varga C.
Topic:
Solid waste management
Nowadays polyethylene is one of the polymers produced in the greatest volume, therefore, parallelly the amount of generated waste polyethylene (w-HDPE) significant as well. Valorisation and recycling of w-HDPE can be realized by blending with different types of polymers and/or elastomers in order...Read more
Effect of oxygen functional groups on mercury retention in activated carbons
(Corresponding) Sotiropoulou R., Serafidou M., (Corresponding) Skodras G.
Topic:
Heavy metals in the environment
Two commercial activated carbons (F400 and RWE) were tested for their Hg° retention capacity, in order to elucidate shortcomings that still exist, with respect to the oxygen functional groups. The number and the nature of oxygen containing functional groups were altered by heating under H2 at 1100°...Read more
Keywords:
mercury, oxygen groups, active surface area, Langmuir equation
