A5001443551- Thermochemical Biomass Conversion Processes
- Protist diversity and phylogeny
- Granular flow and fluidized beds
- Heavy metals in environment
- Microbial Community Ecology and Physiology
- Marine and coastal ecosystems
- Adsorption and biosorption for pollutant removal
- Recycling and utilization of industrial and municipal waste in materials production
- Lignin and Wood Chemistry
- Marine Toxins and Detection Methods
- Coal and Its By-products
- Particle Dynamics in Fluid Flows
- Heat and Mass Transfer in Porous Media
- Genomics and Phylogenetic Studies
- Concrete and Cement Materials Research
- Chromium effects and bioremediation
- Plant and soil sciences
- Forest ecology and management
- Biodiesel Production and Applications
- Municipal Solid Waste Management
- Composting and Vermicomposting Techniques
- Agricultural Engineering and Mechanization
- Recycling and Waste Management Techniques
- Health and Lifestyle Studies
- Recycled Aggregate Concrete Performance
Universidad de Los Andes
2017-2024
University of British Columbia
2004-2024
Universidad de Medellín
2014-2024
Universidad de Los Andes
2022-2024
University of the Basque Country
2014-2023
Universidade Federal de São Carlos
2020
Universidad de Antioquia
2008-2018
University of Cundinamarca
2017-2018
Universidad Independiente
2017
Canadian Institute for Advanced Research
2002
Charcoal is common in the soils of mature rain forests within 75 kilometers San Carlos de Rio Negro north central Amazon Basin. Carbon-14 dates soil charcoal from this region indicate that numerous fires have occurred since mid-Holocene epoch. most tierra firme forest Oxisols and Ultisols less caatinga igapo soils. Climatic changes or human activities, both, caused rain-forest fires.
Dinoflagellates are key species in marine environments, but they remain poorly understood part because of their large, complex genomes, unique molecular biology, and unresolved in-group relationships. We created a taxonomically representative dataset dinoflagellate transcriptomes used this to infer strongly supported phylogeny map major morphological transitions evolution. Our results show an early-branching position Noctiluca, monophyly thecate (plate-bearing) dinoflagellates, paraphyly...
Oxyrrhis marina and Perkinsus marinus are two alveolate species of key taxonomic position with respect to the divergence apicomplexans dinoflagellates. New sequences from Oxyrrhis, a number dinoflagellates were added datasets small-subunit (SSU) rRNA, actin, α-tubulin β-tubulin sequences, as well combined dataset all three protein-coding genes, phylogenetic trees inferred. The parasitic branches at base dinoflagellate clade high support in most individual gene analysis, strongly confirming...
One of the main products pyrolysis is char. For better performance and improvement its physicochemical properties, it necessary to make temperature changes. In this study, different temperatures have been tested for rice husk, biochar obtained from process went through an evaluation test yield in removal emerging compounds such as azithromycin (AZT) erythromycin (ERY). this, husk has carried out at 450, 500, 550, 600 °C, biochars characterized by ultimate analysis proximate analysis, well...
Highlights The production and consumption of commodity polymers have been an indispensable part the development our modern society. Owing to their adjustable properties variety functions, polymer-based materials will continue playing important roles in achieving Sustainable Development Goals (SDG)s, defined by United Nations, key areas such as healthcare, transport, food preservation, construction, electronics, water management. Considering serious environmental crisis, generated increasing...
Abstract Gold mining has helped many countries and regions grow prosper. Yet, because of the significant environmental effects produced, waste management (mine tailings) emerged as a crucial issue for sector. In this study, concentrations several potential toxic elements (PTEs) (Fe, Zn, Cu, As, Hg, Pb, Cr, Cd, Ni) in mine tailings from four gold operations (Yalí, Puerto Berrio, Buriticá 1, 2,) were quantified. A biomonitoring system also been suggested, along with two risk indexes ecosystems...
Soil contamination with heavy metals (HM) poses significant challenges to food security and public health, requiring the exploration of effective remediation strategies. This study aims evaluate process soils contaminated Cd, Cr, Pb using
Abstract Soil contamination by Pb can result from different anthropogenic sources such as lead-based paints, gasoline, pesticides, coal burning, mining, among others. This work aimed to evaluate the potential of P-loaded biochar (Biochar-based slow-release P fertilizer) remediate a Pb-contaminated soil. In addition, we aim propose biomonitoring alternative after soil remediation. First, rice husk-derived was obtained at temperatures (450, 500, 550, and 600 °C) (raw biochars). Then, part...
Abstract The contamination of soil and water by metals such as mercury (Hg) cadmium (Cd) has been increasing in recent years, because anthropogenic activities mining agriculture, respectively. In this work, the changes rhizosphere microbiome Lolium perenne L. during phytoremediation soils contaminated with Hg Cd were evaluated. For this, two types sampled, one inoculated mycorrhizae without. Cd, seeds sown harvested after 30 days. To assess microbiome, DNA isolation tests performed, for...
Ultrastructural and molecular phylogenetic data suggest that dinoflagellates diverged as a lineage possibly early the Precambrian. However, fossil record is problematic before Mesozoic. From mid Triassic, though, of rich source information on Mesozoic-Cenozoic dinoflagellates, especially gonyaulacoids peridinioids. sequence appearance species tabulation types impression morphological experimentation later stabilization, Mesozoic radiation appears to be real evolutionary event: indeed,...
Biochar has unique properties such as its porous structure, specific surface area, and stable chemical properties. The rice husk is characterized by high content of silica, that during the pyrolysis process it generates a considerable amount biochar can be used in different processes. aim this work to evaluate several biochars from reactivity lime pastes. For this, been obtained at four temperatures (450, 500, 550 600 °C), they have XRF, XRD, ICP-EOS, particle size distribution, determine...
Soil acidification and increased bioavailability of Ni are problems that affect agricultural soils. This study aims to compare the effects both lime biochar from corn stover in soil acidity correction, improving physicochemical properties re-acidification resistance. As well as assesseing impacts on human health risk caused by nickel. A greenhouse pot experiment was conducted for 30 days determine effect nickel bioavailability. Afterwards, a laboratory test carried out repercussions...
In this research, we developed a biochar-based fertilizer using biogas slurry and biochar derived from lignocellulosic agro-residues. Biogas was obtained through the anaerobic digestion of organic fraction municipal solid waste (fresh vegetable biomass and/or prepared food), while biochars were residues quinoa, maize, rice, sugarcane. The fertilizers an impregnation process, where mixed with each raw biochars. Subsequently, characterized N, P K concentrations fertilizers. Additionally,...
Abstract Soil contamination with heavy metals is a major problem worldwide, due to the increasing impact mainly caused by anthropogenic activities. This research evaluated phytoremediation capacity of, Lolium perenne for such as cadmium (Cd 2+ ) and mercury (Hg ), effects of these on morphology, biomass production, changes gene expression. Seeds L. were exposed six concentrations Cd Hg in range 0 25 mg L −1 , two mixtures –Hg 2 . The Non-Observed Effect Level (NOEL) was established dose...