Conference proceedings

Displaying 681 - 690 of 1396

CEST Proceedings are published under the ISSN 2944-9820.

Screening of 102 organic pollutants in groundwater along the Beijing-Hangzhou Grand Canal in China by GC×GC-TOFMS

(Corresponding) Rao Z., liang m., Liu L., Gong J., Zhu T.
Topic: 
Emerging pollutants
Screening of 102 organic pollutants in groundwater along the Beijing-Hangzhou Grand Canal in China by GC×GC-TOFMS. A total of 45 samples were collected. The targets of the investigation involve multiple types of organic pollutants such as Polycyclic aromatic hydrocarbons (PAHs) and their...Read more
Keywords: 
Screening, Organic pollutants, Groundwater, GC×GC-TOFMS,
Paper ID: 
cest2019_00807

Treatment of various agro-industrial wastewaters using electrocoagulation

Benekos A., Papadopoulos K., Triantaphyllidou I., Tekerlekopoulou A., (Corresponding) Vayenas D.
Topic: 
Wastewater treatment
Greece, although not over-industrialized, is facing issues connected to pollution of its water resources, as conventional wastewater treatment methods often prove ineffective in terms of removing some pollutantssuch as suspended solids and pigments. Therefore, the need of developing efficient,...Read more
Keywords: 
agro-industrial wastewaters, electrocoagulation, color, suspended solids
Paper ID: 
cest2019_00307

IMPREGNATED RESINS AS NOVEL SORBENTS FOR REMOVAL OF TOXIC METAL IONS FROM AQUEOUS SOLUTIONS

(Corresponding) Zawierucha I., Nowik-Zajac A., Kozlowski C.
Topic: 
Wastewater treatment
The adsorption/solid phase extraction (SPE) processes are the most attractive methods for effective removal of metals ions from different aqueous solutions. In SPE procedure, the choice of appropriate adsorbent is a critical factor to obtain full recovery and high enrichment factor. For this...Read more
Keywords: 
impregnated resins, sorption, macrocyclic ligands, toxic metal ions
Paper ID: 
cest2019_00245

REMOVAL OF TOXIC METAL IONS THROUGH POLYMER INCLUSION MEMBRANES CONTAINING MACROCYCLIC LIGANDS AS CARRIERS

(Corresponding) Nowik-Zajac A., Zawierucha I., Kozlowski C.
Topic: 
Wastewater treatment
More strict environmental regulations on the discharge of toxic metals require developing various technologies for their removal from polluted streams. The separation of toxic metal ions using immobilized membranes with doped ligands, due to their high selectivity and removal efficiency, increased...Read more
Keywords: 
polymer inclusion membranes, macrocyclic ligands, toxic metal ions
Paper ID: 
cest2019_00254

DEVELOPMENT OF CONTINUOUS, LINEAR MODELS FOR MARINE BENTHIC MACROPHYTES DESCRIPTION

(Corresponding) TZOUVARAS N.
Topic: 
Marine environment and coastal management
The European Water Framework Directive has fostered indicator development, pertinent to biological quality elements, for ecological status assessment of coastal waters. For seaweed communities, the CFR index considers composition, abundance and physiological status, through four constituents (...Read more
Keywords: 
Water Framework Directive, Ecological Quality Ratio, marine benthic macrophytes, CFR model, Ecological Evaluation Index RPI approach
Paper ID: 
cest2019_00781

Linear Bivariate Expressions for Marine Benthic Macrophytes Ecological Status Description

(Corresponding) Tzouvaras N.
Topic: 
Marine environment and coastal management
Regarding ecological status assessment with marine benthic macrophytic indicators as per European Water Framework Directive (WFD), linear models are being reviewed (either starting from discontinuous forms or modifying quadratic and algebraic forms). Through use of simple concepts, model...Read more
Keywords: 
Water Framework Directive, marine benthic macrophytes, CFR model, RPI approach for EEI model
Paper ID: 
cest2021_00159

Challenges in biological treatment plants: the approach of zero sludge waste

THEOFANIDIS S., Samiotis G., Bellos D., Pekridis G., Tsioptsias C., (Corresponding) Amanatidou E.
Topic: 
Wastewater treatment
The current trend in operation of biological Wastewater Treatment Plants (WWTPs) is the minimization of sludge wastage due to its labor and cost intensive management process. Minimization of sludge can be achieved by increasing the solids retention time (SRT) in a WWTP, up to an almost complete...Read more
Keywords: 
biological treatment, sludge minimization, complete solids retention
Paper ID: 
cest2019_00251

Natural presence of hexavalent chromium in spring waters of South-West Mountain Vermion, Greece

STAMOS A., SAMIOTIS G., PEKRIDIS G., TSIOPTSIAS C., (Corresponding) AMANATIDOU E.
Topic: 
Efficient water resources management in cr(vi) impacted water bodies
Hexavalent chromium in water occurs as oxoanions that are toxic for plants and animals. Furthermore, they are soluble and extremely mobile under environmental conditions. Chromium in its other common oxidative state (Cr+3) is less toxic and in general immobile. Chromium is found in nature mainly in...Read more
Keywords: 
hexavalent chromium, natural occurrence, ophiolite
Paper ID: 
cest2019_00768

Greenhouse Gas Emissions from Natural and Artificial Lakes in Western Macedonia, Greece

TSIOPTSIAS C., SAMIOTIS G., KAKLIDIS N., PEKRIDIS G., (Corresponding) AMANATIDOU E.
Topic: 
Lakes, rivers, estuaries and ecosystem health
Formation of artificial lakes is a common practice for hydroelectric power generation. Hydroelectricity is considered to be a green and renewable energy source in terms of factory operation. However, hydroelectricity generation may have environmental impact arisen from greenhouse gas (GHG)...Read more
Keywords: 
Hydroelectricity, Artificial lake, Greenhouse Gases, Water quality
Paper ID: 
cest2019_00769

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
Paper ID: 
cest2019_00857