05/10/2012
From the Institute for Polymers and Composites of the University of Minho, where he is an associated researcher in I3N, Manuel Oliveira is coming to this IV Symposium, to talk about “New Polymer for Aquatic Environment Regeneration and Phosphorus Recovery”.
This researcher has been working in the development and syntheses of new nanocomposite materials with specific properties through the modif**ation of commercial polymers, and has recently been awarded with BES Innovation Award – Natural Resources & Food Sector.
Here is a summary of his lecture:
“The leaching of surplus fertilizers from agriculture practices and the discharge of phosphorus rich wastewaters are among the most signif**ant anthropogenic pressures on river basins. As a consequence, a severe loss of ecosystem biodiversity occurs and water abstraction is at risk when toxins are released after cyanobacteria blooms. The eutrophication of waters environments is noticed since the 1950s, yet the phenomenon is far from being solved today and affects 53% of European lakes, among many others around the world. The European Water Framework Directive (WFD-2000/60/EC) imposed the restoration of water bodies quality until 2015, but derogations have been claimed when eutrophication is the main pressure. Actually, even when external phosphorus (P) sources are eliminated, a slow rehabilitation process is observed because of the re-dissolution of P accumulated in sediments.
The present work investigated the removal of phosphate from water using a new developed hybrid nanocomposite containing aluminium nanoparticles (HPN). The HPN results from a reaction between an organic and an inorganic component, being the latter the removal agent for P. HPN were obtained by a sol gel process resulting in a material with high mechanical stability. The product was design to be directly applied into the water column and to allow the phosphorus recovery. “
Do Instituto de Polímeros e Compósitos da Universidade do Minho, onde é um investigador associado no I3N, Manuel Oliveira virá estas IV Jornadas, para falar sobre “New Polymer for Aquatic Environment Regeneration and Phosphorus Recovery”.
Este investigador tem vindo a trabalhar no desenvolvimento e síntese de novos materiais nanocompósitos com propriedades específ**as, através da modif**ação de polímeros comerciais, e foi recentemente galardoado com Prémio Inovação BES - Recursos Naturais e do Sector Alimentar.
Aqui f**a um resumo da sua palestra:
“The leaching of surplus fertilizers from agriculture practices and the discharge of phosphorus rich wastewaters are among the most signif**ant anthropogenic pressures on river basins. As a consequence, a severe loss of ecosystem biodiversity occurs and water abstraction is at risk when toxins are released after cyanobacteria blooms. The eutrophication of waters environments is noticed since the 1950s, yet the phenomenon is far from being solved today and affects 53% of European lakes, among many others around the world. The European Water Framework Directive (WFD-2000/60/EC) imposed the restoration of water bodies quality until 2015, but derogations have been claimed when eutrophication is the main pressure. Actually, even when external phosphorus (P) sources are eliminated, a slow rehabilitation process is observed because of the re-dissolution of P accumulated in sediments.
The present work investigated the removal of phosphate from water using a new developed hybrid nanocomposite containing aluminium nanoparticles (HPN). The HPN results from a reaction between an organic and an inorganic component, being the latter the removal agent for P. HPN were obtained by a sol gel process resulting in a material with high mechanical stability. The product was design to be directly applied into the water column and to allow the phosphorus recovery. “
