Constructed Wetlands (CW), as biological treatment systems, mimic the phytoremediation processes found in natural wetlands in an optimized configuration for the improvement of the water quality. They are considered nature-based solutions (NBS) that may support decentralized wastewater treatment providing several ecosystem services, including enhancing water availability and reducing water-related risks. The pre...
What are Constructed Wetlands? Constructed wetlands (CW) are engineered systems that are inspired by and mimicking processes (physical, biological, and chemical) and functions that occur in natural wetlands. Comprised of several components, impermeabilization liners and substrate, and as the key elements the plants and their associated microorganisms. They were thought primarily for wastewater treatment but now...
The research (supported by the Centre for African and Development Studies of the University of Lisbon) is defined as exploratory and aims to evaluate whether the methodology of inquiry and analysis of the identity of J. Cheek, S. Briggs, S. Smith and L. Tropp, can be adapted to a fragile state like Guinea-Bissau. This methodology consists in the assessment of the importance attributed by the respondents of 70 s...
Environmental biotechnology, such as bioremediation and phytoremediation, is a promising field that uses natural resources, including microorganisms and plants, to eliminate toxic organic contaminants from water, soils and air (Calheiros et al. 2020). This technology offers an attractive alternative to other conventional remediation processes due to its relatively low cost and environmentally friendly method. I...
Phytotechnologies are plant-based approaches that solve or complement the solution of environmental problems, by remediating soil, water, and air or restoring ecosystem services in managed landscapes. Floating treatment wetlands (FWIs) are examples of a phytotechnology, also named nature-based solution, that provides water treatment and management with low capital costs, high success rate, low maintenance requi...
This study presents experimental and numerical results of a development prototype tool that includes blank-holder plates of variable stiffness. The application is analyzed for high-strength steel parts and tailor welded blanks manufactured from dissimilar steel grades using laser welding. A numerical model was constructed within the Ansys software platform incorporating appropriate material constitutive models ...
In small bowel capsule endoscopy (SBCE), the presence of residue may compromise diagnostic accuracy. Background In small bowel capsule endoscopy (SBCE), the presence of residue may compromise diagnostic accuracy. Aims To assess differences in quality of visualisation and diagnostic yield of SBCE using 3 different preparation protocols. Methods Prospective, randomized, blind, pilot study. Protocol A:Clear liquid...
Beer ageing on wood is a complex and difficult to control process involving several reactions and compounds. Difficulties in understanding the underlying phenomena often lead to empirical and unpredictable processes and heterogeneous products. This work resorts to volatile fingerprinting along with multivariate analysis as tools to differentiate and highlight differences in beers derived from diverse production...