This paper is a review of the potential of olive pomace, a by-product of the olive sector, as a precursor for the production of biochar. In general, it presents a panorama of this sector, which is so important worldwide and particularly in the Mediterranean region, the largest olive and olive oil producing area in the world, representing 90% of global production. We also address the problem of the large amount ...
Human activities generate byproducts and wastes that need to be valorised. This paper presents a comparative study on the valorisation of different natural byproducts, of vegetal and mineral origin, through their transformation into adsorbent materials. A series of byproducts (European wood pellets, African natural woods, natural charcoal, lignocellulosic ash, perlite and vermiculite minerals and expanded clay)...
As lamas carbonatadas (vulgarmente conhecidas por “natas”), resultam do processamento industrial de mármores e/ou calcários explorados no Anticlinal de Estremoz e no Maciço Calcário Estremenho, respectivamente. Tratando-se de materiais homogéneos e relativamente puros (> 95% CaCO 3 ), têm elevado potencial para aplicação industrial pelo que se justifica o estudo da viabilidade técnica e económica de aplicação e...
This research delves into the landscape of Municipal Solid Waste (MSW) production and management in Portugal, shedding light on the intricate dynamics of waste generation, disposal, and recovery. The universal challenge of MSW management is accentuated, considering its substantial impact on the environment and the economy. In 2021, MSW comprised 28% of the total waste produced in mainland Portugal, emphasizing ...
This work consists in exploring the preparation, characterisation and application of adsorbents based on lignocellulosic materials obtained from waste from the paper pulp industry, namely “Knots and Rejects - KR” and “Primary Sludge - PS”. These carbon materials were prepared by carbonisation under nitrogen flow, N2, and by chemical activation with the activating agent phosphoric acid, H3PO4. The materials were...
Plastic pollution has become a pressing environmental issue. The agricultural sector, in particular, is a significant contributor to this problem, given the widespread use of plastics in farming practices and a lack of and/or use of inefficient approaches for the recycling and valorization of agricultural plastic waste. This has resulted in the accumulation of these residues in landfills and/or their improper d...
The search for strategies that contribute to circular economy, based on the valorization of by-products of the most diverse industries and processes, is one of the main environmental objectives at present. This study aims to evaluate the possibility of valorizing by-products from the gasification and carbonization of polymeric residues and biomass of natural origin through their application in adsorption proces...
In the present study, char and activated carbon (AC) materials were prepared from water bottles, recuperated from the waste collection point in Mourouj, Ben Arous, Tunisia, by using a rotative horizontal tubular furnace, on a lab/pilot scale and through chemicalandphysicalactivation. Different samples were characterized by N2 adsorption isotherms, SEM-EDX, XRD, EA as well as by the determinationofthepHzpc.Theef...
The search for strategies that contribute to a circular economy, based on the valorization of by-products of the most diverse industries and processes, is one of the main objectives nowadays. This study aims to evaluate the possibility of the by-products valorization, resulting from gasification and carbonization of polymeric residues and biomass of natural origin, through their application in adsorption proces...
Neste documento resume-se a informação resultante dos trabalhos desenvolvidos pela equipa da Universidade de Évora, no período decorrido entre 31 de março de 2022 e 31 de outubro de 2022, no âmbito das actividades: A3 – Construção de Protótipos, A5 - Otimização de Resultados (laboratorial), A6 - Divulgação e disseminação, contempladas no cronograma adaptado e A 7 - Gestão do projecto.; Fundo Europeu de Desenvol...