A5008874880- Wastewater Treatment and Nitrogen Removal
- Atmospheric and Environmental Gas Dynamics
- Methane Hydrates and Related Phenomena
- Odor and Emission Control Technologies
- Fluid Dynamics and Mixing
- Climate change and permafrost
- Marine and coastal ecosystems
- Innovative Microfluidic and Catalytic Techniques Innovation
- Hydrocarbon exploration and reservoir analysis
- Microbial Community Ecology and Physiology
- Peatlands and Wetlands Ecology
- Viral Infectious Diseases and Gene Expression in Insects
- Anaerobic Digestion and Biogas Production
- Microbial Fuel Cells and Bioremediation
- Vehicle emissions and performance
- Algal biology and biofuel production
- Carbon Dioxide Capture Technologies
- Microbial bioremediation and biosurfactants
- Membrane Separation Technologies
- Landfill Environmental Impact Studies
- Water Quality Monitoring and Analysis
- Groundwater flow and contamination studies
- Chromium effects and bioremediation
- Environmental Chemistry and Analysis
- Polar Research and Ecology
Center for Research and Advanced Studies of the National Polytechnic Institute
2016-2025
Instituto Politécnico Nacional
2016-2025
Universidad de Magallanes
2017-2024
Universidad Nacional Autónoma de México
2023
University of Alaska Fairbanks
2014-2018
Universidad de Valladolid
1997-2011
Centro de Investigación en Materiales Avanzados
2009
Institute for Biotechnology and Bioengineering
2007
University of Minho
2007
KU Leuven
1994-2001
Abstract. Uncertainties in the magnitude and seasonality of various gas emission modes, particularly among different lake types, limit our ability to estimate methane (CH4) carbon dioxide (CO2) emissions from northern lakes. Here we assessed relationship between CH4 CO2 modes 40 lakes along a latitudinal transect Alaska lakes' physicochemical properties geographic characteristics, including permafrost soil type surrounding Emission included direct ebullition, diffusion, storage flux, newly...
This paper presents fundamental and theoretical aspects of biological waste gas treatment technologies as well examples applications to different compounds. The three most widely used are described, namely biofiltration, bioscrubbing trickling focusing more extensively on biofiltration which is the studied process. A description from technological economic points view, including an analysis models in biotreatment given. Results presented literature concerning removal aliphatic, aromatic...
Arctic lakes emit methane (CH4) to the atmosphere. The magnitude of this flux could increase with permafrost thaw but might also be mitigated by microbial CH4 oxidation. Methane oxidation in oxic water has been extensively studied, while contribution anaerobic (AOM) mitigation is not fully understood. We have investigated four Northern Siberian stratified an area discontinuous nearby Igarka, Russia. Analyses concentrations column demonstrated that 60 100% upward diffusing was oxidized anoxic...
Abstract. Methanotrophic bacteria play an important role oxidizing a significant fraction of methane (CH4) produced in lakes. Aerobic CH4 oxidation depends mainly on lake and oxygen (O2) concentrations, such manner that higher MO rates are usually found at the oxic/anoxic interface, where both molecules present. also temperature, via methanogenesis, organic carbon input to lakes, including from thawing permafrost thermokarst (thaw)-affected Given large variability these environmental...
Abstract In this article, the problem of real‐time estimation fermentative ethanol process is tackled. The considered observer a model‐based technique that robust regarding model parameter uncertainties and inline noisy measurements. An unstructured kinetic was used to describe production in batch bioreactor for Saccharomyces cerevisiae . biomass concentration selected as measured bioreactor´s output via an device, where estimate variables were substrate concentrations. experimental...
A novel low-cost method for the combined, real-time, and in situ determination of dissolved methane carbon dioxide concentrations freshwater ecosystems was designed developed. This is based on continuous sampling water from a ecosystem to gas/liquid exchange membrane. Dissolved gas transferred through membrane flow high purity nitrogen, which then measured by an off-axis integrated cavity output spectrometer (OA-ICOS). method, called M-ICOS, carefully tested laboratory subsequently applied...
A comparative study of the performance solid and liquid non-aqueous phases (NAPs) to enhance mass transfer biodegradation hexane by Pseudomonas aeruginosa in two-phase partitioning bioreactors (TPPBs) was undertaken. preliminary NAP screening thus carried out among most common NAPs used pollutant biodegradation. The polymer Kraton G1657 (solid) silicone oils SO20 SO200 were selected from this based on their biocompatibility, resistance microbial attack, non-volatility high affinity for (low...
Abstract Background Biological wastewater treatment by nitrification is widely used; however information on inhibition of sulfide still scarce. The aim this study was to evaluate the inhibitory effect different initial concentrations ammonium and nitrite oxidizing processes . Results In absence sulfide, completed after 24 h with an consumption efficiency ( E NH4 + ) 100.0 ± 2.1% nitrate conversion yield Y NO3 ‐ 0.90 0.01 g NO 3 ‐N –1 NH 4 consumed. At lower than 13.5 0.7 mg HS ‐S L ,...
While numerous studies report methane emissions from wastewater treatment plants (WWTPs) in developed countries, few address developing where outdated technologies, such as the lack of enhanced primary and sludge treatment, are common. Moreover, these often rely on indirect calculations rather than direct measurements. Our study fills this gap by providing unit-process-level measurements a conventional WWTP Mexico, serving case for countries. A standard plant was selected visited five...
Tropical wetlands are the largest natural source of methane (CH4) globally. While soils primary CH4 emitters, recent studies reveal that trees mediate soil-produced methane, highlighting potential underestimations in current and carbon budgets. In mangrove forests, contribution to local, regional, global emissions remains uncertain, despite their significant role as blue reservoirs. Mangrove species exhibit unique physiological morpho-anatomical adaptations—such extensive...
Abstract. Peatlands play a crucial role in the global carbon cycle, and among several key processes, it is essential to characterize photosynthesis-irradiance (PI) curves, which describe relationship between light availability assimilation through photosynthetic activity. Traditional methods, such as Eddy Covariance portable photosynthesis measurement systems, provide valuable data at ecosystem leaf scales, respectively. However, these approaches leave gap capturing dynamics intermediate...