Conference proceedings

Displaying 421 - 430 of 1396 in (remove filter)

CEST Proceedings are published under the ISSN 2944-9820.

ASSESSMENT OF PUBLIC PURCHASE BEHAVIOR TOWARDS HOUSEHOLD GREEN PRODUCTS IN UNITED ARAB EMIRATES (UAE).

(Corresponding) Elsergany M., ALANSAARI A.
Topic: 
Environmental management and policies
The aim of green production and consumption is to adopt the idea of supplying the consumers with products that fulfill their needs with lower consequences on the environment. This concept was introduced in 1970 aims to protect the environment and to have better control over natural resources. This...Read more
Keywords: 
green product, eco-labeling, consumer purchase behavior, environment, green marketing.
Paper ID: 
cest2019_00797

Long-term impact of use of treated wastewater on accumulation of metals in soil.

(Corresponding) Elsergany M., KARKAIN R., DIAMADAPOULOS E., Moussa M.
Topic: 
Water and wastewater reuse
The aim of this paper is to assess the environmental risks associated with the wastewater reuse with respect to six metals; cadmium (Cd), chromium (Cr), copper (Cu), nickel (Ni), lead (Pb) and zinc (Zn) in the city of Dubai. Treated Sewage Effluent (TSE) is used for landscape irrigation. Samples of...Read more
Keywords: 
Soil Pollution, Contamination Factor, Pollution Load Index, Metal Pollution Load Index, Degree of Contamination
Paper ID: 
cest2019_00800

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
Paper ID: 
cest2019_00498

An innovative green iron-fertilizer, produced biotechnologically, for correcting iron chlorosis of soybean plants grown in calcareous soils

(Corresponding) Soares H.
Topic: 
Environmental biotechnology and bioenergy
Iron deficiency is one of the main causes of chlorosis in plants, which leads to the loss in the field crops quality and yield. Iron-deficiency is a worldwide problem, particularly sever in calcareous soils (about 30% of world´s land surface). The current use of synthetic iron-chelates to prevent...Read more
Keywords: 
Freeze-dried iron-bacterial siderophores products; Environmental-friendly iron-chelates; Iron chlorosis correction of soybean plants; Calcareous soils
Paper ID: 
cest2019_00634

An innovative and eco-friendly approach to recover gold (and copper) from gold fingers of waste printed circuit boards

Sousa P., Martelo L., Bastos M., Marques A., (Corresponding) Soares H.
Topic: 
Sustainable supply of raw materials
Recycling waste printed circuit boards (WPCBs) is a complex problem worldwide and sustainable technologies are required. So, this work aims to offer an innovative (an European patent was submitted, EP 20216239.2 1) and more sustainable solution to recover high-value materials (gold and copper) from...Read more
Keywords: 
E-waste, Printed circuit board recycling, Physical and chemical processes; Gold and copper recovery.
Paper ID: 
cest2021_00155

The Quality Properties of Tire Tread With Adding Filler of a Sunflower Oil and Pinecone Powder

(Corresponding) Akpinar Borazan A., Alkan A.
Topic: 
Sustainable supply of raw materials
This study, aimed to be developed economical and environmentally friendly tires by modifying commercial tire tread using pinecone powder and sunflower oil. Different additives were used in the blend formulations: stearic acid as an accelerator and softener supplement, zinc oxide to increase the...Read more
Keywords: 
Pinecone powder, vegetable oil, physico-mechanical properties, rheological properties, tire tread
Paper ID: 
cest2021_00344

Removal of wood dyes from aqueous solutions by sorption on un-treated pine sawdust

Pimentel C., Freire S., Gómez-Díaz D., (Corresponding) González-Álvarez J.
Topic: 
Wastewater treatment
Synthetic dyes are extensively used in industry for various applications among which is the preparation of dyed wood veneers. The discharge of effluents containing dyes is of great concern due to their toxicity, mutagenicity and carcinogenicity and causes serious environmental problems. In this...Read more
Keywords: 
pine sawdust, wood dyes, biosorption, wastewaters
Paper ID: 
cest2021_00438

New polyacrylonitrile (PAN)-based porous carbons for the removal of industrial wood dyes from aqueous solutions

Domínguez-Ramos L., Tejado I., Gómez-Díaz D., Freire S., Lazzari M., (Corresponding) González-Álvarez J.
Topic: 
Wastewater treatment
Synthetic dyes degradation is a difficult task due to their complex aromatic structure, although its elimination by adsorption is effective. The aim of this research is to produce porous carbons derived from polyacrylonitrile (PAN) as wood dyes adsorbents. PAN is a nitrogen-rich precursor...Read more
Keywords: 
polyacrylonitrile-based porous carbons, wood dye, adsorption, wastewater
Paper ID: 
cest2021_00439

Green jobs as an unemployment solution

(Corresponding) Sulich A., Rutkowska M.
Topic: 
Enviornmental data analysis and modelling
Currently, the priority in the EU countries is the subject of unemployment due to the economic and social situation in Greece and unemployment in Spain. Although unemployment in Poland has dropped, it is still quite high. The new economic models based on heterodox economics point to many new...Read more
Keywords: 
green jobs, unemployment, green management
Paper ID: 
cest2019_00104

PRO-ECOLOGICAL BUSINESS MODELS – CASE STUDY IN POLAND

(Corresponding) KAMIŃSKA A., (Corresponding) RUTKOWSKA M.
Topic: 
Ecology, environmental change and management
Currently, ecological postulates as the idea of green economy are more and more often used in the economy. Hence the priority in company management is the subject of pro-ecological business models. The purpose of this article is to present the idea of creating business models in line with...Read more
Keywords: 
business model, pro-ecological, sustainable development
Paper ID: 
cest2021_00814