A5091809964- Odor and Emission Control Technologies
- Wastewater Treatment and Nitrogen Removal
- Industrial Gas Emission Control
- Listeria monocytogenes in Food Safety
- Metallic Glasses and Amorphous Alloys
- Mine drainage and remediation techniques
- Anaerobic Digestion and Biogas Production
- Microbial Fuel Cells and Bioremediation
- Phase-change materials and chalcogenides
- Escherichia coli research studies
- Enzyme-mediated dye degradation
- Salmonella and Campylobacter epidemiology
- Probiotics and Fermented Foods
- Material Dynamics and Properties
- Glass properties and applications
- Advanced oxidation water treatment
- Metallurgical and Alloy Processes
- Ammonia Synthesis and Nitrogen Reduction
- Chromium effects and bioremediation
- Thermal and Kinetic Analysis
- Aluminum Alloys Composites Properties
- Sharing Economy and Platforms
- Air Quality Monitoring and Forecasting
- Tannin, Tannase and Anticancer Activities
- Metal Alloys Wear and Properties
Universitat Autònoma de Barcelona
2008-2021
Abstract BACKGROUND Biological oxidation in biotrickling filters of high H 2 S loads contained biogas streams still requires further study to reduce elemental sulfur accumulation due limited gas–liquid oxygen mass transfer inside filter beds. Reduction may be improved by regulating the main manipulated variables related efficiency during biological hydrogen sulfide removal filters. RESULTS Trickling liquid velocity and co‐current flow were selected as most appropriate variable pattern...
Abstract BACKGROUND Feedforward control was implemented at laboratory scale in an aerobic and anoxic biotrickling filter (BTF) operating under fluctuating H 2 S loading rate (LR) conditions order to show the capabilities added value of this strategy. Dynamic, long‐term tests with variable LR were performed simulate disturbances inlet gas concentration without implementation a feedforward loop based on trickling liquid velocity (TLV) nitrate feeding manipulation for BTFs, respectively....
ABSTRACT: The behavior of E. coli O157:H7 strains during the storage plain live yogurt at 4, 8, 17, and 22 °C was investigated. Lactic acid bacteria pH were also studied. Linear regression analysis carried out to obtain specific death rate, rate time death. During 1st 24 h, pathogenic decreased slightly 4 8 °C. This decrease greater 17 °C, even not detected after 312, 168, 28, 16 h respectively. Counts Lactobacillus Streptococcus about 9 log CFU/g study. An increase in values for from...
In this study, the long-term performance and microbial dynamics of an Upflow Anaerobic Sludge Blanket (UASB) reactor targeting sulfate reduction in a SOx emissions treatment system were assessed using crude glycerol as organic carbon source electron donor under constant S C loading rates. The was inoculated with granular sludge obtained from pulp paper industry fed at inlet concentration 250 mg S-SO42−L−1 C/S ratio 1.5 ± 0.3 g Cg−1 for over 500 days. Apart regular analysis chemical species,...
Abstract BACKGROUND Biological treatment of effluents containing H 2 S and ammonium are great interest as both can trigger serious environmental problems when disposed of. The aim this study was to optimize the production biosulfur from partial oxidation sulfide in sulfide‐ ammonium‐containing streams. performance evaluated under various aerating conditions key kinetic parameters were adjusted based on an existing mathematical model adapted system. RESULTS An optimal conversion 0 86% (w/w)...
Biotrickling filters are one of the most widely used biological technologies to perform biogas desulfurization. Their industrial application has been hampered due difficulty achieve a robust and reliable operation this bioreactor. Specifically, biotrickling process performance is affected mostly by fluctuations in hydrogen sulfide (H2S) loading rate changes gas inlet concentration or volumetric flowrate. The can be controlled means regulation air flowrate (AFR) control oxygen (O2) outlet...
ABSTRACT: Samples of ultra heat‐treated (UHT) milk (whole, semiskimmed, and skimmed milk, whole with cinnamon lemon flavors, semiskimmed cocoa) were collected. Growth E. coli O157:H7 was detected in at 4 °C (generation time 0.89 d) all milks 20 during the first 24 h. nonpathogenice. samples without flavors same period time. The fastest death (−1.35 nonpathogenic strain showed °C.