10 documents found, page 1 of 1
A correlation-based approach for predicting humic substance bioactivity from di...
Silva, Ana Catarina; Bento, M. Fátima; Rocha, José Pedro Pereira Rebelo; Geraldo, Dulce; Proença, M. Fernanda R. P.; Antelo, Juan; Fiol, SarahThe efficient characterization of compost quality is essential for optimizing its application in agriculture and soil improvement. In this study, a correlation-based approach was employed to evaluate relationships between physicochemical properties, structural features, and reactivity indicators of compost extracts—fulvic acid-like (FA-L), humic acid-like (HA-L), and dissolved organic matter (DOM)—and their res...
Developing a Compost Quality Index (CQI) based on the electrochemical quantific...
Silva, Ana Catarina; Rocha, Pedro; Geraldo, Dulce; Cunha, Ana; Antelo, Juan; Pinheiro, José P.; Fiol, Sarah; Bento, M. FátimaThe present work demonstrates the use of Cd<sup>2+</sup> as a reactivity probe of the fulvic acids (FAs), humic acids (HAs) and dissolved organic matter (DOM) compost extracts. Significant differences were observed between the extracts, with the HA extract showing the highest reactivity. Comparing the different composts, the largest reactivity variation was again observed for HA then FA and finally DOM extracts...
The role of the iron oxyhydroxides and efflorescent sulfates in remediation by ...
Barroso, Ana; Antunes, Isabel Margarida; Marinho Reis, A. Paula; Vasques, Isabela; Antelo, Juan; Fiol, Sarah; Gomes, Patricia[Excerpt] Acid mine drainage (AMD) is a common problem associated with the weathering of metal sulfide wastes in abandoned mining areas, which can be rich in toxic metals and metalloids. The formation of secondary mineral phases such as iron oxyhydroxides, oxyhydroxysulfates, and efflorescent sulfates may be a natural attenuation process in mining soils because these minerals can scavenge potentially toxic elem...
Distinctive features of composts of different origin: a thorough examination of...
Silva, Ana Catarina; Teixeira, Ana Sofia Pereira; Antelo, Juan; Valderrama, Patrícia; Oliveira, Rui Pedro Soares de; Cunha, Ana; Gley, RenaudThe potential of composts produced from different origin residues to be used in environmentally friendly agriculture is addressed in this work. Seven composts obtained from different raw materials and composting methodologies are compared using elemental, thermal and spectroscopic characterization data. Despite the stabilization of the organic matter in all composts being adequate for agricultural applications,...
TERRAMATER project: a tool for post-fire rehabilitation and restoration of soils
Macías, Felipe; Antelo, Juan; Verdes, P.V.; Figueiredo, Tomás de; Fonseca, Felícia; Hernández, Zulimar; Valente, Teresa; Barroso, Ana; Henriques, RenatoIn recent years the risk of wildfires in the regions located in the Portuguese-Spanish border varied between moderate to high or very high. The loss of the vegetation cover and the presence of huge areas of unprotected soil due to the occurrence of large wildfires, as well as the limited post-fire protection actions, have increased the risk of soil erosion to catastrophic levels. Thus, it is crucial to act imme...
Use of combined tools for effectiveness evaluation of tailings rehabilitated wi...
Arán, Diego; Santos, Erika S.; Abreu, Maria Manuela; Antelo, Juan; Macias, FelipeSoil and water characteristics and biogeochemical processes can be improved by the application of an integrated technology based on circular economy: designed Technosol. The evaluation of the effectiveness of the superficial application of a designed Technosol, with andic and eutrophic properties, on the rehabilitation of sulfide tailings of a uranium mine (Fe´ mining area, Spain) was the aim of this study. Aft...
Could wasted food be useful to control phytopathogenic fungi? Effect of humic a...
Santos, Celso; Teixeira, Ana; Antelo, Juan; Pérez, C.; Fiol, Sarah; Cunha, Ana; Oliveira, Rui Pedro Soares deThe enormous amount of daily wasted food became a major social and environmental issue. Furthermore, the extensive use of agrochemicals is increasing agricultural and health problems. Composting can be an effective way of reuse the organic waste to produce an organic fertilizer with benefits for crops, environment and public health. In the present work, the antifungal effect of humic (HA) and fulvic acids (FA) ...
Could wasted food be useful to control phytopathogenic fungi? Effect of humic a...
Santos, Celso; Teixeira, Ana; Antelo, Juan; Pérez, C.; Fiol, Sarah; Cunha, Ana; Oliveira, Rui Pedro Soares deThe enormous amount of daily wasted food became a major social and environmental issue. Furthermore, the extensive use of agrochemicals is increasing agricultural and health problems. Composting can be an effective way of reuse the organic waste to produce an organic fertilizer with benefits for crops, environment and public health. In the present work, the antifungal effect of humic (HA) and fulvic acids (FA) ...
Comparison of cadmium binding by humic and fulvic acids extracted from compost ...
Rocha, Pedro; Silva, Ana Catarina; Antelo, Juan; Bento, M. Fátima; Bettencourt, Ana Paula; Fiol, Sarah; Geraldo, Dulce; López, Rocio; Macias, Felipe[Excerpt] Introduction: Composting is a natural process of decomposition and stabilization of organic matter. Domestic or industrial composting is an environmental friendly alternative method to handle organic wastes [1]. The organic matter formed by composting, usually denominated by humic substances (HS), can be divided into three classes, humic acids (HA), fulvic acids (FA) and humin (HM) according to their ...
Characterization, acid-base properties and metal complexation of humic-like sub...
Silva, Ana Catarina; Rocha, P.; López, Rocio; Antelo, Juan; Bento, M. Fátima; Fiol, Sarah; Bettencourt, P.; Ferreira, P.; Geraldo, Dulce; Macias, Felipe[Excerpt] Food waste is the main fraction (45%) of total municipal solid waste in Europe [1]. The valorization of this type of residue, either by anaerobic digestion or by composting is relevant for circular economy. Composting has many environmental benefits, besides decreasing the emissions of greenhouse gases, it contributes to the improvement of soil properties through compost application. The production of...