Economía Circular

Economía Circular

Efficient adsorptive removal of fluoroquinolone antibiotics from water by alkali and bimetallic salts co-hydrothermally modified sludge biochar
- Fluoroquinolones are one of most commonly used antibiotics for preventing and treating bacterial infections and their unsatisfactory removal by conventional wastewater treatment technology have...
Effect of Ni/Al2O3 mixing on the coking behavior of bio-oil during its pyrolysis: Further understanding based on the interaction between its components
01/05/2022 - Bio-oil can be converted to chemicals, carbon material, or syngas by various thermochemical processes which are always preceded with the pyrolysis step. In bio-oil pyrolysis, coke formation is...
A density functional theory study on the effect of acetylene on vinyl acetate synthesis from acetoxylation of ethylene over Pd-Au catalysts
- In this work, the reaction network of acetylene on Pd-Au catalyst was constructed firstly, and the single adsorption configurations and adsorption energies and electronic properties of key species...
A biodegradable chitosan-based composite film reinforced by ramie fibre and lignin for food packaging
- To solve the problem of environmental pollution caused by plastic food packaging films, a biodegradable chitosan-based film containing micro ramie fibre and lignin was prepared by the casting...
Effects of carbon nanotube dosage and aggregate size distribution on mechanical property and microstructure of cemented rockfill
- The mechanical and structural properties of cemented rockfill produced by mineral wastes as recycled aggregates limit its application. In this paper, the macroscopic mechanical and microscopic...
Valorization of Biomass to Furfural by Chestnut Shell-based Solid Acid in Methyl Isobutyl Ketoneâ??Waterâ??Sodium Chloride System
- Abstract Recently, highly efficient production of furfural from available, abundant, inexpensive, and renewable lignocellulosic biomass has gained much attention by using...
Catalytic preparation of carbon nanotube/SiC whisker bonded low carbon MgO–C refractories and their high-temperature mechanical properties
- The effects of Co, Fe and Ni catalysts generated from their nitrate precursors on the formation of carbon nanotubes (CNTs) from pyrolysis of phenolic resin were investigated, and the former two...
Preparation and textural evolution: From organosilane aerogel to SiOC aerogels
- Generally, SiOC aerogels are prepared utilizing the high-temperature pyrolysis of polyorganosiloxanes or polycarboorganosilanes in an inert gas atmosphere. However, the crosslinking and drying of...
Integrated biorefinery approach to valorize citrus waste: A sustainable solution for resource recovery and environmental management
- Citrus fruits are extensively cultivated, consumed and major processed horticulture crops around the globe. High processing and consumption generate huge quantities of solid organic wastes. Citrus...
Synthesis of a novel cationic hydrophobic shale inhibitor with preferable wellbore stability
- To solve the problems of wellbore instability and collapse caused by clay hydration during the horizontal drilling process of shale gas, a novel cationic hydrophobic shale inhibitor ADD was...
Characterization of a coating for radioprotection, by X-ray diffraction, scanning electron microscopy, and dispersive energy spectroscopy
28/02/2022 - This article refers to the study of the characterization of the mixture of barite powder (BaSO4) and recycled lead powder (Pb). The proposed methodology consists of a mixture of powders,...
Understanding cellulose pyrolysis under hydrogen atmosphere
15/02/2022 - The product distributions of cellulose pyrolysis under different pressures, temperatures, and atmospheres were investigated using a high-pressure micropyrolyzer to clarify the pyrolysis reaction...
Effective mitigation of single-component and mixed textile dyes from aqueous media using recyclable graphene-based nanocomposite
11/01/2022 - The present study reported the synthesis and utilization of a graphene-based hybrid nanocomposite (MnFe2O4/G) to mitigate several synthetic dyes, including methylene blue, malachite green, crystal...
A closed-loop system to recycle rare earth elements from industrial sludge using green leaching agents and porous ?-cyclodextrin polymer composite
01/05/2022 - Industrial sludge is classified as hazardous waste as well as a resource of valuable metals and needs to be adequately treated for the sake of the environment and economy. This study reports a...
Numerical investigation of sugarcane bagasse gasification using Aspen Plus and response surface methodology
15/02/2022 - Efficient utilization of biomass as an alternative energy resource to fossil fuel has been considered the most promising clean energy option. Gasification technology is at the forefront of biomass...
Ultrafine Co-MoS2 monolayer catalyst derived from oil-soluble single-molecule polyoxometalates for slurry phase hydrocracking
01/05/2022 - Herein, a novel single-molecule confinement-sulfurization strategy was proposed to construct ultrafine Co-MoS2 monolayer catalysts by using oil-soluble single-molecule polyoxometalates (POMs),...
Efficient Recognition and Automatic Sorting Technology of Waste Textiles Based on Online Near infrared Spectroscopy and Convolutional Neural Network
01/05/2022 - In order to better recycle waste textiles and save resources, intelligent identification and sorting equipment and technology are urgently needed. In this work, an online near infrared (NIR)...
Dynamic analysis of in-use copper stocks by the final product and end-use sector in Japan with implication for future demand forecasts
01/05/2022 - Analysis of in-use metal stocks provides information on the potential quantity and quality of the generated waste and secondary metals and an understanding of metal demands. Previous studies have...
Effect of heating conditions on the magnetic properties of micron-sized carboxyl modified-magnetite particles synthesized by a spray pyrolysis and heating process
- Superparamagnetic carboxyl (COOH) modified-magnetite (Fe3O4) (COOH-Fe3O4) micrometer-sized porous particles were synthesized by the spray pyrolysis of a 0.1 M Fe(NO3)3·9H2O and 0.2 M citric...
A Simple Fluorescent Aptasensing Platform Based on Graphene Oxide for Dopamine Determination
- Abstract Dopamine (DA) is a catecholamine neurotransmitter playing an important role in different biological functions including central nervous, renal, cardiovascular, and...
Fabricating high temperature stable Mo-Co9S8/Al2O3 catalyst for selective hydrodeoxygenation of lignin to arenes
- Achieving high-temperature stability/duration without compromising the activity remains an arduous task in catalyst design, particularly for MoS2 materials. Herein, a robust catalyst with Mo doped...