A5005754441- Odor and Emission Control Technologies
- Thermochemical Biomass Conversion Processes
- Indoor Air Quality and Microbial Exposure
- Biofuel production and bioconversion
- Vehicle emissions and performance
- Wastewater Treatment and Nitrogen Removal
- Forest Biomass Utilization and Management
- Enzyme Production and Characterization
- Enzyme Catalysis and Immobilization
- Concrete and Cement Materials Research
- Catalysis for Biomass Conversion
- Recycling and utilization of industrial and municipal waste in materials production
- Algal biology and biofuel production
- Lignin and Wood Chemistry
- Recycled Aggregate Concrete Performance
- Environmental Chemistry and Analysis
- Pesticide and Herbicide Environmental Studies
- Biodiesel Production and Applications
- Granular flow and fluidized beds
- Agricultural Engineering and Mechanization
- Supercapacitor Materials and Fabrication
- Energy and Environment Impacts
- Environmental Toxicology and Ecotoxicology
- Marine Toxins and Detection Methods
- Industrial Gas Emission Control
Universidad Autónoma Metropolitana
2010-2024
Universidad Católica de la Santísima Concepción
2024
Idaho National Laboratory
2016-2023
Universidad de Los Andes
2010-2017
Lund University
2006
Mexican Institute of Petroleum
2003
Institut de Recherche pour le Développement
2003
Instituto de Ciencias de La Construcción Eduardo Torroja
1996-2000
Universidad de Los Andes
1995
The products from fast pyrolysis of biomass are variable and highly dependent upon feedstock composition, particle size geometry, operating conditions such as heating rate, reaction temperature, sweep gas composition velocity. Microwave is internal to the particles, thereby avoiding convective conductive heat transfer limitations, which facilitates decoupling effects chemical kinetics. This separation allows for elucidation primary original materials' on product yields. To better understand...
Abstract The performance of biofilters inoculated with the fungus Scedosporium apiospermum was evaluated. This isolated from a biofilter which operated toluene for more than 6 months. experiments were performed in 2.9 L reactor packed vermiculite or vermiculite‐granular activated carbon as packing material. initial moisture content support and inlet concentration 70% g/m 3 , respectively. As pressure drop increased 5–40 mm H 2 O strong growth observed. Stable operation maintained 20 days 55%...
Biofiltration of hydrophobic volatile pollutants is intrinsically limited by poor transfer the from gaseous to liquid biotic phase, where biodegradation occurs. This study was conducted evaluate potential silicone oil for enhancing transport and subsequent hexane fungus Fusarium solani in various bioreactor configurations. Silicone first selected among solvents its biocompatibility, nonbiodegradability, good partitioning properties toward hexane. In batch tests, use improved specific...
Interest in biofuels has grown recent years. Unfortunately, biofuel refineries are unable to operate at full capacity due handling and feeding issues as the systems for biomass often poorly designed. To inform more effective reliable systems, this study presents mechanical (moisture, particle size/distribution, bulk density, compressibility, elastic recovery) flow characterization (critical arching distance feed rate a wedge hopper screw feeder) of corn (Zea mays L.) stover. Results showed...
The moisture content of biofilter media is a key parameter for its adequate performance. Control requires better understanding the drying support due to changes in inlet air temperature and relative humidity from metabolic heat production by pollutant oxidation. A dynamic one-dimensional model was developed describe effect on Mass energy balances were established an elementary representative volume. biological reaction term incorporated temperature, water content, concentration effects....
This work describes the growth of filamentous fungi in biofilters for degradation hydrophobic VOCs. The study system was n-hexane and Fusarium solani B1. is mathematically described main physical, kinetic data morphological parameters were obtained by independent experiments validated with from laboratory experiments. model increase transport area cylindrical mycelia its relation elimination quasi-stationary state a biofilter. describing fungal includes Monod-Haldane hyphal elongation...
AbstractOrganochlorine pesticides were intensively used in Mexico from 1950 until their ban and restriction 1991. However, the presence of these compounds is commonly reported many regions country. The aim present study was to identify quantify residual organochlorine organophosphorus agricultural soil Rio Verde region, San Luis Potosi state, which has been identified as possibly polluted by pesticides. Composed samples 24 zones covering an area approximately 5,440 ha analyzed. most...
ABSTRACT A biofiltration system inoculated with the mold Paecilomyces variotii CBS115145 showed a toluene elimination capacity (EC) of around 250 g/m 3 biofilter/h, which was higher than values usually reported for bacteria. P. assimilated m - and p -cresols but not o isomer. Initial hydroxylation occurred both on methyl group through -cresol pathway. These results were corroborated by detecting benzyl alcohol, benzaldehyde, as volatile intermediates. In liquid cultures substrate, activity...
Abstract BACKGROUND: An alkaline mineral medium (pH ≈ 10) was used in a previous study to enhance the absorption rate of hydrogen sulfide biofiltration process where an alkaliphilic sulfo‐oxidizing bacterial consortium deployed. In this work same media and were assess biotrickling filter performance during treatment low gaseous concentrations carbon disulfide ethanethiol. RESULTS: The alkalinity increased solubility ethanethiol by around 50% 80%, respectively. oxidation activity...
Abstract Fungal biofilters have been recently studied as an alternative to the bacterial systems for elimination of hydrophobic volatile organic compounds (VOC). Fungi foster reduced transport limitation VOCs due their surface and extended gas exchange area associated hyphal growth. Nevertheless, one principal drawbacks is slow growth, which critical in start‐up fungal biofilters. This work compares use different carbon sources (glycerol, 1‐hexanol, wheat bran, n ‐hexane) reduce period...
Abstract BACKGROUND: The effect of the inlet n ‐pentane load (IL), empty bed residence time (EBRT) and mineral medium (MM) addition on spore emission elimination capacity (EC) was evaluated using fungus Fusarium solani in a vermiculite‐based biofilter. RESULTS: When process operated at an EBRT 3.7 min IL 100 g m $_{\rm {reactor}}^{-3}$ h −1 , weekly MM from 6.8 to 13.6 mL L {vermiculite}}^{-1}$ resulted fluctuacting dynamics ECs emission. varying 25 875 maximum EC 110 associated with 1.8 ×...
Short rotation woody crops have many advantages as perennial bioenergy feedstocks, including high biomass yields, carbohydrate and low ash contents, marginal land utilization. Through short coppicing management, these resources can be harvested year round. The challenge of round harvesting is feedstock quality variability due to leaf content during periods non-senescence. fraction results in higher moisture contents lower content. Mechanical techniques, such air classification, provide an...