Conference proceedings

Displaying 231 - 240 of 257 in CEST2025 (remove filter)

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.

Simulation-based design of pressure swing adsorption for methane and nitrogen separation in biogas upgrading

De Paola S., Cairone S., Oliva G., Cardona G., Zarra T., Belgiorno V., (Corresponding) Naddeo V.

Topic:

11. ENERGY TECHNOLOGIES

This study evaluates the performance of three adsorbents, ETS-4, MSC 3K 172, and Norit RB3, for a 68/32 %vol CH4/N2 separation in biogas upgrading, using a two-stage Pressure Swing Adsorption (PSA) system modeled in Aspen Adsorption. Sensitivity analysis indicated that adsorption pressure,...Read more

Keywords:

PSA cycle optimization, Biogas upgrading, CH4/N2 separation, Kinetic-selective adsorbents.

DOI:

https://doi.org/10.30955/gnc2025.00400

Conference:

CEST2025

Paper ID:

cest2025_00400

Development of 3D-Printed Permeable Reactive Barrier Adsorbents Utilizing Zeolite Composites for Copper (II) Removal in Acid Mine Drainage

Atega M., Detras M., Eusebio R., Borines M., Maalihan R., (Corresponding) Bautista-Patacsil L.

Topic:

1. WATER AND WASTEWATER TREATMENT AND REUSE

Zeolite-based ceramic structures was fabricated using a viscous solution 3D printing (3DP) technique to demonstrate their effectiveness in removing heavy metal ions from acid mine drainage (AMD) runoff. Zeolite, a low-cost hydrated aluminosilicate clay, is widely used in water treatment due to its...Read more

Keywords:

Adsorption, 3D printing, Acid Mine Drainage, Heavy Metals

DOI:

https://doi.org/10.30955/gnc2025.00403

Conference:

CEST2025

Paper ID:

cest2025_00403

Exploring the applicability of differential absorbance to simultaneously quantify and control microbial inactivation and DBPs formation

Baccini L., Vagliasindi F., Korshin G., (Corresponding) Roccaro P.

Topic:

1. WATER AND WASTEWATER TREATMENT AND REUSE

Chlorination is effective in inactivating microorganisms. However, its interaction with natural organic matter (NOM) and inorganic ions leads to the formation of disinfection byproducts (DBPs). Surrogate parameters, such as the differential absorbance at 272 nm (DA272), have shown potential for...Read more

Keywords:

Chlorination; disinfection by-products; inactivation ratio; differential absorbance.

DOI:

https://doi.org/10.30955/gnc2025.00404

Conference:

CEST2025

Paper ID:

cest2025_00404

Bio-oil production from biomass pyrolysis via a hybrid mathematical and machine learning approach

Xu F., Lyons Ceron A., Neshumajev D., (Corresponding) Konist A.

Topic:

2. CIRCULAR ECONOMY AND BIOECONOMY

A hybrid mathematical and machine learning (HMML) approach is applied for maximizing bio-oil yield during the continuous biomass pyrolysis, using local common reed as feedstock. The HMML approach, which combines Response Surface Methodology (RSM) and Machine Learning algorithms (Gaussian Process (...Read more

Keywords:

Pyrolysis, Response surface methodology, Machine learning, Bio-oil, Process optimization.

DOI:

https://doi.org/10.30955/gnc2025.00405

Conference:

CEST2025

Paper ID:

cest2025_00405

Reclaiming Water: Assessing the Water Resources Released by the Decommissioning of Lignite Facilities in Western Macedonia

(Corresponding) Farmaki P., Tranoulidis A.

Topic:

9. HYDROLOGY AND WATER RESOURCES

The decommissioning of lignite power plants in Western Macedonia is a key point for the energy transition at a national level in Greece but also marks a turning point for the regional resources management. One of the resources of special interest would be water, a central ingredient in the lignite-...Read more

Keywords:

Water Resources, Management, Natural Resources, Energy, Delignitization

DOI:

https://doi.org/10.30955/gnc2025.00407

Conference:

CEST2025

Paper ID:

cest2025_00407

Multi-Analytical Investigation of Oil Shale and Its Ash Fractions: Trace Element Partitioning and Environmental Implications

Yang D., Paiste P., Konist A., (Corresponding) Järvik O.

Topic:

7. ENVIRONMENTAL POLLUTION

This study presents a comprehensive multi-analytical investigation of oil shale and its combustion ash fractions using XRD, XRF, and LA-ICP-MS techniques. The mineralogical composition is characterized by a transition from carbonate-rich phases in raw shale to silicate-dominated assemblages in ash...Read more

Keywords:

Oil shale, Ash, Mineralogical composition, Chemical composition, Trace elements

DOI:

https://doi.org/10.30955/gnc2025.00409

Conference:

CEST2025

Paper ID:

cest2025_00409

Biogas upgrade to biomethane in trickling bed reactors: Process optimization under mesophilic conditions

Karyofyllidou C., Spyridonidis A., Diamantis V., Galiatsatos I., Stathopoulou P., Tsiamis G., (Corresponding) Stamatelatou K.

Topic:

11. ENERGY TECHNOLOGIES

The biomethane sector is rapidly expanding due to the compelling advantages of renewable biomethane, which closely resembles non-renewable natural gas. In this work, we present a novel study on trickling bed reactors (TBR) under mesophilic conditions, demonstrating their robustness in producing...Read more

Keywords:

biogas, biomethane, trickling bed reactor, biological upgrade, Methanobacter

DOI:

https://doi.org/10.30955/gnc2025.00414

Conference:

CEST2025

Paper ID:

cest2025_00414

Using the EU Environmental Permitting Framework to Promote the Energy Transition in the Western Balkans – The Case of Kosovo

(Corresponding) Panagiotakis I., Astara Z., Shala B., Bajraktari E., Elshani A., Alexopoulos I., Gjinolli P.

Topic:

11. ENERGY TECHNOLOGIES

Kosovo's electricity generation is dominated by lignite-fired power plants, resulting in high greenhouse gas emissions and limited integration of renewable energy sources (RES). Despite national strategies aimed at increasing the share of RES and Battery Energy Storage Systems (BESS),...Read more

Keywords:

Environmental Permitting, Renewable Energy, Kosovo, Spatial Planning, RED III

DOI:

https://doi.org/10.30955/gnc2025.00422

Conference:

CEST2025

Paper ID:

cest2025_00422

Microwave plasma pyrolysis for the valorization of VFA extracts from HTC process water

(Corresponding) Vakalis S., Liakos D., Papaioannou I., Stefanidis G.

Topic:

11. ENERGY TECHNOLOGIES

Volatile fatty acids (VFAs) in HTC liquors are a promising but underutilized resource for energy production. This study examines the recovery of VFAs from HTC process water via liquid–liquid extraction and the co-pyrolysis of the recovered stream with methane in a microwave plasma reactor to...Read more

Keywords:

Waste-to-Energy; HTC; Plasma Pyrolysis

DOI:

https://doi.org/10.30955/gnc2025.00431

Conference:

CEST2025

Paper ID:

cest2025_00431

Biogas upgrade with green hydrogen in a semi-pilot trickle bed reactor

(Corresponding) Papadopoulou K., Pavlopoulos C., Riglis C., Tsilifonis E., Markopoulou A., Fotopoulos D., Papathanasiou A., Lyberatos G.

Topic:

11. ENERGY TECHNOLOGIES

The current study investigated the performance of biological methanation of CO2 using green H2 in a mesophilic (37℃) trickle bed reactor (TBR) (0.051m3) at ambient pressure. For both phase A and phase B a synthetic gas feed (60/40 CH4/CO2) was used to simulate biogas. Nitrogen was used in phase A...Read more

Keywords:

TBR, Biogas, Biological methanation, mesophilic

DOI:

https://doi.org/10.30955/gnc2025.00436

Conference:

CEST2025

Paper ID:

cest2025_00436