Listar Bioenxeñaría Ambiental e Control de Calidade (BIOENGIN) por título
Mostrando ítems 27-46 de 107
-
Carbon Dioxide Bioconversion Into Single Cell Oils (Lipids) In Two Reactors Inoculated With Acetobacterium Woodii and Rhodosporidium Toruloides
(Elsevier, 2021-08-12)[Abstract] Acetobacterium woodii was able to produce high concentrations of acetic acid, i.e., > 20 g/L, from CO2, in the presence of H2 as an energy source, which was favoured by maintaining a near-optimal pH of 7.8 in ... -
Carbon monoxide fermentation to ethanol by Clostridium autoethanogenum in a bioreactor with no accumulation of acetic acid
(Elsevier, 2015-06)[Abstract] Fermentation of CO or syngas offers an attractive route to produce bioethanol. However, during the bioconversion, one of the challenges to overcome is to reduce the production of acetic acid in order to minimize ... -
Carotenoids production and extraction from Yarrowia lipolytica cells: A biocompatible approach using biosolvents
(Elsevier, 2024)[Abstract] The use of carotenoids, pigments with significant importance in the food and pharmaceutical industries, has been widely recognized because of their functions as colorants and antioxidants. The production of ... -
Characterization of absorbent polymers for the removal of volatile hydrophobic pollutants from air
(Wiley-Blackwell, 2011-01)An emerging innovation for the treatment of polluted air consists in using a liquid–solid biphasic system, in which the sequestering phase contains inert polymer beads. The different polymers tested here for this purpose ... -
Co-digestion of Cheese Whey With Sewage Sludge for Caproic Acid Production: Role of Microbiome and Polyhydroxyalkanoates Potential Production
(Elsevier, 2021-06-08)[Abstract] The main aim of this work was to evaluate the efficiency of producing caproic acid and other volatile fatty acids using a co-digestion between cheese whey and sewage sludge in a continuous reactor. The effect ... -
Co-treatment of hydrogen sulfide and methanol in a single-stage biotrickling filter under acidic conditions
(Elsevier, 2007-06)Biofiltration of waste gases is cost-effective and environment-friendly compared to the conventional techniques for treating large flow rates of gas streams with low concentrations of pollutants. Pulp and paper industry ... -
Coliform concentration reduction and related performance evaluation of a down-flow anaerobic fixed bed reactor treating low-strength saline wastewater
(Elsevier Sciencie lted, 2004-09)Low-strength saline wastewater may be generated by tourist facilities, industries and communities located in coastal areas. Sea salts, mostly chlorides, when present in wastewaters at high concentrations, can cause inhibition ... -
Combined biological and physicochemical waste-gas cleaning techniques
(Taylor & Francis, 2012-06)This review presents a general overview of physical, chemical and biological waste-gas treatment techniques such as adsorption, absorption, oxidation and biodegradation, focusing more extensively on combined processes. It ... -
Combined post-ozonation and biological treatment of recalcitrant wastewater from a resin-producing factory
(Elsevier, 2007-05)In this study, effluent from the biological treatment of wastewater from a resin-producing factory containing recalcitrant compounds was ozonated under different conditions. Afterwards, the biodegradability of the ozonated ... -
Composition and role of extracellular polymers in methanogenic granules
(ASM, 1997-02)Methanobacterium formicicum and Methanosarcina mazeii are two prevalent species isolated from an anaerobic granular consortium grown on a fatty acid mixture. The extracellular polysaccharides (EPS) were extracted from ... -
Design of Low-Cost Ethanol Production Medium From Syngas: An Optimization of Trace Metals for Clostridium Ljungdahlii
(MDPI, 2021-10-25)[Abstract] Syngas fermentation via the Wood-Ljungdahl (WL) pathway is a promising approach for converting gaseous pollutants (CO and CO2) into high-value commodities. Because the WL involves several enzymes with trace metal ... -
Development of a Novel Monolith-Bioreactor for the Treatment of VOC-polluted Air
(Taylor & Francis, 2006)A novel bioreactor packed with ceramic monolith colonized by a toluene-degrading culture was investigated in order to assess its suitability for waste gas treatment. Operational parameters that were considered included ... -
Effect of electron acceptors on product selectivity and carbon flux in carbon chain elongation with Megasphaera hexanoica
(Elsevier, 2024)[Abstract] Megasphaera hexanoica is a bacterial strain following the reverse β-oxidation pathway to synthesize caproate (CA) using lactate (LA) as an electron donor (ED) and acetate (AA) or butyrate (BA) as electron acceptors ... -
Effect of Endogenous and Exogenous Butyric Acid on Butanol Production From CO by Enriched Clostridia
(Frontiers, 2022-02-16)[Abstract] Butanol is a potential renewable fuel. To increase the selectivity for butanol during CO fermentation, exogenous acetic acid and ethanol, exogenous butyric acid or endogenous butyric acid from glucose fermentation ... -
Effect of key parameters on the removal of formaldehyde and methanol in gas-phase biotrickling filters
(Elsevier, 2006-12)The effect of some important operation parameters, as pH, pollutant load and composition of the nutrient media, on the biodegradation of a mixture of formaldehyde and methanol in a gas-phase biotrickling filter was studied. ... -
Effect of oil concentration and residence time on the biodegradation of α-pinene vapours in two-liquid phase suspended-growth bioreactors
(Elsevier, 2012-02-20)Recently, research on the use of binary aqueous–organic liquid phase systems for the treatment of polluted air has significantly increased. This paper reports the removal of α-pinene from a waste air stream in a continuous ... -
Effect of pH and medium composition on chain elongation with Megasphaera hexanoica producing C4-C8 fatty acids
(Frontiers Media, 2023)[Abstract] ntroduction: Chain elongation technology, which involves fermentation with anaerobic bacteria, has gained attention for converting short and medium chain substrates into valuable and longer-chain products like ... -
Effect of pH, Yeast Extract and Inorganic Carbon on Chain Elongation for Hexanoic Acid Production
(Elsevier, 2019-12-29)[Abstract] Several anaerobic bioconversion technologies produce short chain volatile fatty acids and sometimes ethanol, which can together be elongated to hexanoic acid (C6 acid) by Clostridium kluyveri in a secondary ... -
Effect of phenol on the biological treatment of wastewaters from a resin producing industry
(Elsevier, 2008-06)The effect of phenol on the biological treatment of wastewaters from a resin producing industry was analyzed in a pre-denitrification system. First, the effect of phenol overloads on the removal of organic matter and ... -
Effect of salinity on C1-gas fermentation by "Clostridium carboxidivorans" producing acids and alcohols
(Springer Nature, 2019-07-17)[Abstract] Clostridium carboxidivorans can produce acids and/or alcohols through syngas fermentation. In that C1-gas fermentation process, the production of acids takes place at higher pH (acetogenesis) (e.g., around 6.00), ...