Now showing items 1-10 of 11481
Electrochemical oxidation of wastewater containing aromatic amines using a flow electrolytic reactor
Aromatic amines are environmental pollutants and represent one of the most important classes of industrial and natural chemicals. Some types of complex effluents containing these chemical species, mainly those originated ...
Characterization of the pre-treated biomass of Eichhornia crassipes (water hyacinth) for the second generation ethanol production
Eichhornia crassipes (water hyacinth), is considered an aquatic pest. An alternative to solve the excess water hyacinth problem is to use the biomass for second generation ethanol. This process can be divided into: collection ...
Heat-treatment effects on the magnetic response of superconducting mesoscopic samples
(Elsevier B.V., 2008-07-01)
The use of chemical methods in the synthesis of high-quality and small-size polycrystalline samples has been increased in recent years. In this work, a chemical route based on an aqueous precursor solution of metals followed ...
Mechanical and tribological properties of a-C:H:F Thin Films
a-C:H films were grown by plasma-enhanced chemical vapor deposition in atmospheres composed by 30 % of acetylene and 70 % of argon. Radiofrequency signal (RF) was supplied to the sample holder to generate the depositing ...
Copper foils used as support for catalytic monoliths. Superficial nano/microstructures obtained for two treatments
Copper metallic monoliths were thermally and chemical treated. Copper oxides with different nano/microstructures were obtained applying different variables in both treatments. They showed to be stable and suitable to act ...
Removal of Toxic Metals from Sewage Sludge Through Chemical, Physical, and Biological Treatments—a Review
The implantation of wastewater treatment systems aims to minimize environmental impacts, but ultimately generates waste materials, such as sewage sludge, which must be properly discarded. Final disposal in landfills, and ...