Encontrados 16 documentos, a visualizar página 1 de 2
Stabilisation/solidification of APC residues from MSW incineration with hydraul...
Quina, Margarida J.; Bordado, João C. M.; Quinta-Ferreira, Rosa M.This study focuses on the stabilisation/solidification (S/S) treatment of air pollution control (APC) residues from municipal solid waste (MSW) incineration. Six formulations (T1–T6) were tested based on different cements as binders, for the immobilisation of pollutants and to prevent their entering into the environment at unacceptable rates. Soluble phosphates and silicates were considered in some cases to fix...
Co-composting of eggshell waste in self-heating reactors: monitoring and end pr...
Soares, Micaela A. R.; Quina, Margarida M. J.; Quinta-Ferreira, Rosa M.Industrial eggshell waste (ES) is classified as an animal by-product not intended to human consumption. For reducing pathogen spreading risk due to soil incorporation of ES, sanitation by composting is a pre-treatment option. This work aims to evaluate eggshell waste recycling in self-heating composting reactors and investigate ES effect on process evolution and end product quality. Potato peel, grass clippings...
Numerical assessment of diffusion-convection-reaction model for the catalytic a...
Rodrigo, J. G. Lopes; Quinta-Ferreira, Rosa M.Computational Fluid Dynamics (CFD) modeling of trickle-bed reactors with detailed interstitial flow solvers has remained elusive mostly due to the extreme CPU and memory intensive constraints. Here, we developed a comprehensible and scalable CFD model based on the conservative unstructured finite volume methodology to bring new insights from the perspective of catalytic reactor engineering to gas-liquid-solid c...
Air Pollution Control in Municipal Solid Waste Incinerators
Quina, Margarida J.; Bordado, João C.M.; Quinta-Ferreira, RosaMunicipal solid waste (MSW) remains a major problem in modern societies, even though the significant efforts to prevent, reduce, reuse and recycle. At present, municipal solid waste incineration (MSWI) in waste-to-energy (WtE) plants is one of the main management options in most of the developed countries. The technology for recovering energy from MSW has evolved over the years and now sophisticated air polluti...
Catalytic ozonation of phenolic acids over a Mn-Ce-O catalyst
Martins, Rui C.; Quinta-Ferreira, Rosa M.Catalytic ozonation of a simulated phenolic wastewater composed by six acids: syringic, vanillic, 3,4,5-trimethoxybenzoic, veratric, protocatechuic and 4-hydroxybenzoic normally present in olive mill wastewaters was studied over a Mn-Ce-O laboratorial catalyst under different operating conditions. A high improvement in total organic carbon (TOC) degradation was observed even when low catalyst concentrations wer...
The influence of pH on the leaching behaviour of inorganic components from muni...
Quina, Margarida J.; Bordado, João C. M.; Quinta-Ferreira, Rosa M.The influence of pH on the leaching behaviour of air pollution control (APC) residues produced in municipal solid waste incineration (MSWI) is addressed in this study. The residue is considered hazardous waste, and in accordance with their chemical properties, the leaching of contaminants into the environment is the main concern. Several leaching tests can be used for research studies or regulatory purposes, wh...
CFD modelling of multiphase flow distribution in trickle beds
Lopes, Rodrigo J.G.; Quinta-Ferreira, Rosa M.http://www.sciencedirect.com/science/article/B6TFJ-4V3SY9D-1/2/bc2d4ac25f84a427fb24f236081fe424
Turbulence modelling of multiphase flow in high-pressure trickle-bed reactors
Lopes, Rodrigo J.G.; Quinta-Ferreira, Rosa M.http://www.sciencedirect.com/science/article/B6TFK-4VB01VS-7/2/7dcce0ca6c1ed57a847371407b038f10
Characterization of air pollution control residues produced in a municipal soli...
Quina, Margarida J.; Santos, Regina C.; Bordado, João C.; Quinta-Ferreira, Rosa M.This study is mainly related with the physical and chemical characterization of a solid waste, produced in a municipal solid waste (MSW) incineration process, which is usually referred as air pollution control (APC) residue. The moisture content, loss on ignition (LOI), particle size distribution, density, porosity, specific surface area and morphology were the physical properties addressed here. At the chemica...
Treatment and use of air pollution control residues from MSW incineration: An o...
Quina, Margarida J.; Bordado, João C.; Quinta-Ferreira, Rosa M.This work reviews strategies for the management of municipal solid waste incineration (MSWI) residues, particularly solid particles collected from flue gases. These tiny particles may be retained by different equipment, with or without additives (lime, activated carbon, etc.), and depending on the different possible combinations, their properties may vary. In industrial plants, the most commonly used equipment ...
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