Conference proceedings

Displaying 541 - 550 of 1396

CEST Proceedings are published under the ISSN 2944-9820.

Adsorption of heavy metals (hexavalent chromium, lead, manganese and cadmium) on multiwall carbon nanotubes

(Corresponding) Mpouras T., Papadaki S., Dermatas D., Papassiopi N.
Topic: 
Nanomaterials in the environmnents applications and effects
Nanotechnology holds great potential in the sector of water/wastewater treatment since it is considered as an advanced technology for improving water quality. Carbon nanotubes is a carbonaceous material that shows exceptional adsorption capacity for the removal of heavy metals due to their novel...Read more
Keywords: 
carbon nanotubes, adsorption, hexavalent chromium, manganese, lead, cadmium
Paper ID: 
cest2019_00458

Evaluation of calcium polysulfide as a reducing agent for the restoration of a Cr(VI)-contaminated aquifer

(Corresponding) MPOURAS T., PAPASSIOPI N., LAGKOUVARDOS K., MYSTRIOTI C., DERMATAS D.
Topic: 
Efficient water resources management in cr(vi) impacted water bodies
This work aims at investigating the efficiency of applying calcium polysulfide (CPS) as a reducing agent for the decontamination of a heavily Cr(VI)-contaminated aquifer. Series of batch experiments were carried out in order to evaluate the reductive behavior of CPS towards the aqueous and solid...Read more
Keywords: 
Calcium polysulfide; Groundwater; Hexavalent chromium; reduction
Paper ID: 
cest2019_00726

Contribution to the exploitation of oil by-products for use in the production of quality feed through the fermentation with the fungal strain LGAM P123 of basidiomyces Pleurotus ostreatus

(Corresponding) KARALIS I., ΑRAPOGLOY D., CHORIANOPOYLOS N., ILIOPOYLOS C.
Topic: 
Solid waste management
In Greece, large quantities of by-products are produced annually from urban and industrial activities among them very high olive oil productionby-products. Thus, the interest of the scientific community has focused on the utilization of olive oil waste mainly as a feed using various microorganisms...Read more
Keywords: 
olive mill waste(OMW), Pleurotus ostreatus, fermentation, straw , polyphenols
Paper ID: 
cest2019_00838

Enzymatic hydrolysis followed by alcoholic fermentation of prickly pears (Opuntia ficus-indica L.) cladodes and fruits using Saccharomyces cerevisiae E1A

(Corresponding) Karalis J., Arapoglou D., Markou G., Eliopoulos C., Papanikolaou S.
Topic: 
Biowaste
The cultivation and production of biomass of prickly pear is of particular interest due to the fact that it can be grown in arid areas, producing higher amounts of biomass with lower inputs (water, fertilizers etc.) compared to other crops. The present study examines whether enzyme...Read more
Keywords: 
Saccharomyces cerevisiae strains, enzymatic hydrolysis, bioethanol, enzymes, prickly pear (Opuntia ficus – indica (L.))
Paper ID: 
cest2021_00790

Health Care Waste Management: Challenges and Solutions

(Corresponding) Halldorsdottir S.
Topic: 
Hazardous waste management
Limited attention has been paid to health-care waste management despite an increase in public concern about the management of such waste on a global basis. The objective of this study was to analyse the issues and challenges of health-care waste management as well as possible solutions. It is...Read more
Keywords: 
Health-care waste management; Sustainable practices; Protection of the environment; Environmental pollution; Infectious waste.
Paper ID: 
cest2019_00787

Multivariate Statistical Analyses of Groundwater Hydrochemical Data of Tirnavos Sub-basin (Central Greece)

(Corresponding) Vrouhakis I., Pisinaras V., Panagopoulos A., Stamatis G.
Topic: 
Enviornmental data analysis and modelling
Abstract. Principal Component Analysis (PCA) and Hierarchical Cluster Analysis (HCA) were applied in the groundwater hydrochemical parameters dataset of the Tirnavos alluvial sub basin-central Greece. PCA results suggest occurrence of four principal components both for dry and wet periods. Results...Read more
Keywords: 
hydrochemistry, principal components, cluster analysis, geographical distribution
Paper ID: 
cest2019_00799

Life cycle assessment analysis for remediation technology choice: a case study

(Corresponding) de Folly d'Auris A., Baric M., Tonziello J.
Topic: 
Life cycle analysis (lca)
Life Cycle Assessment (LCA) may be helpful in the choice of a remediation technology, because remediation itself entails impacts. Presently, government and public institutions involved in the decisional workflow focused their attention on minimizing risks at site and for the receptors but do not...Read more
Keywords: 
LCA, remediation technologies
Paper ID: 
cest2019_00690

Hydrogen production from cotton wastes by mean of dark fermentation

(Corresponding) Sołowski G., Konkol I., Shalaby M., (Corresponding) Cenian A.
Topic: 
Energy technologies and sustainability
Dark fermentation of textile wastes is discussed in the paper. In the experiment were used cotton wastes. Before fermentation the cotton was hydrolyzed using 0.1 M of HCl. The inoculum was pretreated using heat shocked for 0.5 h at temperature of 105°C. The fermentation was carried out under...Read more
Keywords: 
dark fermentation, hydrogen, methane, cotton
Paper ID: 
cest2019_00022

Long term solids handling alternatives for New York City water resource recovery facilities (WRRFs)

(Corresponding) Ramalingam K., (Corresponding) Fillos J., Katehis D.
Topic: 
Energy technologies and sustainability
New York City Department of Environmental Protection, DEP, owns and operates 14 waste water treatment plants which treat a combined average dry weather flow of 57 m3/sec. (1.3 billion gallons per day). The plants have been upgraded periodically to address more stringent discharge permit limits with...Read more
Keywords: 
biosolids, thermal hydrolysis, Lysotherm
Paper ID: 
cest2019_00034

Sustainable Development and Digital Literacy in Educational Practice and Politics. Case study on participative geospatial technologies applications of Greek secondary students

(Corresponding) Exarchou E., Klonari A.
Topic: 
Spatial environmental planning
In the 21st century, our world faces various challenges that greatly affect modern life and show the dynamic relationship and interaction of human activities with space and the environment and the immediate need to ensure sustainable development. The answers on how to achieve this interaction and...Read more
Keywords: 
PGST, Sustainable Development, Educational practice
Paper ID: 
cest2019_00027