ITQB: SET - PhD Theses
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- Treatment of aqueous effluents contaminated with active pharmaceutical ingredientsPublication . Almeida, Hugo F. D."The need to significantly improve human living conditions led to a large increase in the worldwide consumption of pharmaceutical drugs. Over the past few years, the development of advanced analytical tools and investigations on wastewater samples confirmed the presence of residual amounts of active pharmaceutical ingredients (APIs) in wastewater treatment plants (WWTPs), sewage treatment plants (STPs), groundwater and drinking water. Even at low concentrations (ng.L-1 – μg.L-1), the regular contact and ingeston of APIs can lead to deleterious effects towards living organisms. Numerous studies demonstrated that APIs present in WWTPs are a matter of concern towards wildlife and public health. Given the widespread occurance of these drugs in aquatic ecossystems and their deleterious effects, the development of strategies able to mitigate their introduction in the aquatic environment is of great importance.(...)"
- Azeotropic separation: playing with the ionicity of ionic liquidsPublication . Oliveira, Filipe Serrão SantosIn modern chemical industry, the separation of solvent mixtures into their pure compounds is mandatory not only to prevent their accumulation, but also for that their reusability may assure a sustainable overall process. However, the presence of azeotropes or close boiling point mixtures constitute one of the most challenging tasks in industrial processes in the separation of solvent mixtures, since their separation by simple distillation is basically impossible. The processes designed for the efficient separation of azeotropic mixtures usually require the use of a separation agent.(..)