3 documents found, page 1 of 1
Bioenergy Production through Mono and Co-Digestion of Tomato Residues
Almeida, Patrícia V.; Rodrigues, Rafaela P.; Teixeira, Leonor M.; Santos, Andreia F.; Martins, Rui C.; Quina, Margarida J.The agro-industry of tomato generates three types of residues: ripe rotten tomato (unfit for consumption) (RT), green (unripe) tomato (GT), and tomato branches including leaves and stems (TB). These materials are commonly wasted or used as feed for livestock. Energy production through anaerobic digestion is an alternative way to manage and simultaneously valorise these materials. Initially, the operating condit...
From wastewater to fertilizer products: Alternative paths to mitigate phosphoru...
Santos, Andreia F.; Almeida, Patrícia V.; Alvarenga, Paula; Gando-Ferreira, Licínio M.; Quina, Margarida J.Phosphorus (P) is a non-renewable resource, irreplaceable for life and food production, and currently considered a Critical Raw Material to the European Union (EU). Due to concerns about the rate of consumption and limited reserves in countries with sensitive geopolitical contexts, it is urgent to recover P from urban and industrial flows. Indeed, the municipal wastewater treatment plants (WWTP) are considered ...
Direct processing of cellular ceramics from a single red mud precursor
Lopes, Daniela V.; Durana, Eduardo; Cesconeto, Francielly R.; Almeida, Patrícia V.; Kovalevsky, Andrei V.; Quina, Margarida J.; Frade, Jorge R.The feasibility of recycling red mud waste by its direct transformation into highly-porous cellular ceramics was successfully demonstrated. Ceramic materials with designed cellular porosity were processed by emulsification of red mud suspensions with liquid paraffin. Taguchi method was used to study the effects provided by varying the red mud load in the suspension, gelatine content and emulsion stirring time o...