CEST Proceedings are published under the ISSN 2944-9820.
A simple and flexible flowsheet process for recycling efficiently and selectively metals from spent fluid cracking catalysts
(Corresponding) Soares H., (Corresponding) Sadeghi M., (Corresponding) Jesus J., (Corresponding) Pinto E., (Corresponding) Almeida A.
Topic:
Solid waste management
Fluid cracking catalysts (FCCs) are used in the oil industry to crack large molecules into smaller hydrocarbons of interest, such as gasoline and other products. Considering the large volume of FCCs waste generated on a yearly basis (about 20 thousand tons of spent FCCs worldwide) as well as its...Read more
Keywords:
Fluid cracking catalysts, simple and nearly-closed process, recovery of La, recovery of Al
Evaluation of risk and the beneficial effects of synthesized nano silver-based disinfectant on poultry mortality and health
(Corresponding) Kumar I., Bhattacharya J.
Topic:
Nanomaterials in the environmnents applications and effects
This study was evaluated for the potential use of nanosilver (nAg) as a disinfectant and antimicrobial growth promoter supplement for the poultry. The experiments were conducted in the Kangsabati river basin region, in West Medinipur district, West Bengal, India for six months. Two poultry farms...Read more
Keywords:
Farm water, nanosilver, field application, and poultry performance
Anaerobic ammonium nitrogen oxidation and sulphate reduction in psychrophilic conditions
Przywara L.
Topic:
Wastewater treatment
Investigations of simultaneous removal of ammonium and sulphate were carried out in anaerobic laboratory bioreactor - upflow anaerobic filter (UAF). The bioreactor was filled with the anaerobic activated sludge from WWTP Bielsko – Biała. The process was operated in psychrophilic conditions...Read more
Keywords:
ammonium and sulfate removal, reactor UAF, psychrophilic conditions
On the positive influence of Pd species on low-density polyethylene cracking
Pyra K., Tarach K., Majda D., Janiszewska E., Melián-Cabrera I., (Corresponding) Góra-Marek K.
Topic:
Solid waste management
Microporous 12-ring zeolite Beta was impregnated with palladium and evaluated in the cracking of low-density polyethylene (LDPE) cracking. In addition to the catalytic measurements the materials were characterized by X-ray diffraction, chemical analysis and nitrogen adsorption, electron microscopy...Read more
Keywords:
LDPE cracking, zeolite, in situ and operando IR spectroscopy
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
Site selection of hybrid solar/wind renewable energy systems: A case study from Andros, Greece
Bili A., (Corresponding) Vagiona D.
Topic:
Spatial environmental planning
The combination of two or more forms of Renewable Energy Sources at the same spatial scale is a highly promising sector, resulting in an increase in the number of installations of hybrid RES systems. In Greece, where abundant resources such as wind and sun are available, the combination of these...Read more
Keywords:
site selection, Hybrid Wind and Solar Energy Systems, Geographical Information Systems, exclusion criteria, Andros
Mass and energy balances of sewage sludge pyrolysis in a lab rotary kiln
(Corresponding) Mendoza L., Gómez A., Rincón S.
Topic:
Energy technologies and sustainability
The aim of this work is to study the influence of the main parameters of sewage pyrolysis in a rotary kiln on the product distriburion and energy balances. An indirectly heated rotary kiln at a laboratory scale was used (4 kg/h). An increase in the final temperature causes the reduction of the...Read more
Keywords:
Sewage sludge, pyrolysis, rotary kiln, energy and mass balance
Systems improvement and energy savings program for the existing conventional extended aerobic treatment of domestic wastewater in compliance of DAO 2016-08 new general effluent regulations
Maceda M.
Topic:
Wastewater treatment
This is a system improvement and energy savings program for a Sewage Treatment Plant treating wastewater coming from a shopping mall operation. Wastewater from shopping mall is considered domestic wastewater, which needs a big volume of water, and produced big amount of wastewater. Generators of...Read more
Keywords:
Aerobic, mall effluent, reuse wastewater, energy and water savings
Emissions of volatile organic compounds from flex printing facility
(Corresponding) Savic B., Tanovic P., Janjic N.
Topic:
Environmental exposures and human health
The present study was undertaken to investigate, the level of volatile organic compounds (VOCs) in working zone of flex printing facility in Novi Sad, Serbia. The levels of VOCs were determined at four sampling position: at the machine; at a distance of 3 m from the machine; at the outlet of...Read more
Keywords:
flex printing, VOCs, occupational safety and health
Spatial explicit evaluation of potential future developments of forests due to climatic change and nitrogen deposition
Dr. Jenssen M., Dr. Nickel S., (Corresponding) Dr. Schröder W.
Topic:
Enviornmental data analysis and modelling
Climate change and atmospheric nitrogen deposition can impact the integrity of ecosystems. Therefore, the EU Biodiversity Strategy foresees that Member States map and assess the state of ecosystems and their services in their national territory. By example of Germany, this article presents a...Read more
Keywords:
Keywords. Ecosystem classification, integrity, dynamic and fuzzy modelling; Geographic Information System.
