Listar Bioenxeñaría Ambiental e Control de Calidade (BIOENGIN) por título
Mostrando ítems 57-76 de 107
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Formaldehyde and urea removal in a denitrifying granular sludge blanket reactor
(Elsevier, 2004-09)Simultaneous formaldehyde biodegradation, urea hydrolysis and denitrification in anoxic batch assays and in a continuous laboratory anoxic reactor were investigated. In batch assays, the initial formaldehyde biodegradation ... -
Formaldehyde biodegradation and its effect on the denitrification process
(Taylor & Francis, 2007)Simultaneous formaldehyde biodegradation and denitrification in batch assays and in a continuous lab-scale reactor were studied. In batch assays, initial biodegradation rates between 0.7 and 3.3 g CH2O g VSS-1 d-1 were ... -
Formaldehyde biodegradation and its inhibitory effect on nitrification
(Wiley-Blackwell, 2004-05)The simultaneous removal of formaldehyde and ammonium in aerobic cultures and the inhibitory effect of formaldehyde on ammonium oxidation were investigated. The influence of a co-substrate, methanol, on formaldehyde ... -
Formaldehyde biodegradation in the presence of methanol under denitrifying conditions
(Wiley-Blackwell, 2006)Simultaneous formaldehyde and methanol biodegradation and also denitrification were studied in batch assays and in a continuous laboratory-scale reactor. In batch assays, high formaldehyde concentrations (up to 1360 mg ... -
Fungal biocatalysts in the biofiltration of VOC-polluted air
(Elsevier, 2004-09-30)Gas-phase biofilters used for the treatment of waste gases were originally packed with compost or other natural filter beds containing indigenous microorganisms. Over the past decade much effort has been made to develop ... -
Fungal biofiltration of α-pinene: Effects of temperature, relative humidity, and transient loads
(Wiley-Blackwell, 2007-02)Over the past decade much effort has been made to develop new carrier materials, more performant biocatalysts, and new types of bioreactors for waste gas treatment. In biofilters fungal biocatalysts are more resistant to ... -
Hydrodynamic behaviour and comparison of technologies for the removal of excess biomass in gas-phase biofilters
(Elsevier, 2004)The hydrodynamic behaviour of a biofilter fed toluene and packed with an inert carrier was evaluated on start-up and after long-term operation, using both methane and styrene as tracers in Residence Time Distribution ... -
Implementación de tecnología NFC en el canal HORECA
(Universidad Nacional Abierta y a Distancia, 2022)[Resumen] El reto de realizar un transición digital y sostenible inclusiva, que incorpore a todos los agentes de la sociedad, es uno de los mayores desafíos de las sociedades contemporáneas. Sin embargo, en la última década ... -
Inert filter media for the biofiltration of waste gases – characteristics and biomass control
(Springer, 2002)Soil biofilters and related systems based onthe use of natural filter beds have been usedfor several years for solving specific airpollution problems. Over the past decade,significant improvements have been brought tothese ... -
Influence of Electron Acceptors on Hexanoic Acid Production by Clostridium Kluyveri
(Elsevier, 2019-05-07)[Abstract] Clostridium kluyveri was used for chain elongation of C2C4 fatty acids in stirred tank bioreactors. The influence of different electron acceptors (acetic acid, butyric acid and the mixture of both) on C6 fatty ... -
Influence of feedstock mix ratio on microbial dynamics during acidogenic fermentation for polyhydroxyalkanoates production
(Elsevier, 2021-12-01)[Abstract] The nature of microbial populations plays an essential role in the production of volatile fatty acids (VFA) during acidogenesis, the first stage in polyhydroxyalkanoates (PHA) production using mixed cultures. ... -
Integrated fermentative process for lipid and β-carotene production from acetogenic syngas fermentation using an engineered oleaginous Yarrowia lipolytica yeast
(Elsevier, 2023)[Abstract] An engineered Yarrowia lipolytica strain was successfully employed to produce β-carotene and lipids from acetic acid, a product of syngas fermentation by Clostridium aceticum. The strain showed acetic acid ... -
Kinetics of inhibition in the biodegradation of monoaromatic hydrocarbons in presence of heavy metals
(Elsevier Sciencie lted, 2001-06)The toxicity and inhibitory effects of heavy metals such as cadmium, nickel and zinc on alkylbenzene removal were evaluated with a Bacillus strain. The kinetics of alkylbenzene biodegradation with the different heavy metals ... -
Mesophilic and thermophilic biotreatment of BTEX-polluted air in reactors
(Wiley-Blackwell, 2007-08)This study compares the removal of a mixture of benzene, toluene, ethylbenzene, and all three xylene isomers (BTEX) in mesophilic and thermophilic (50°C) bioreactors. In the mesophilic reactor fungi became dominant after ... -
Methanogenic and perchloroethylene-dechlorinating activity of anaerobic granular sludge
(Springer, 1998-10)The biodegradation and toxicity of tetrachloroethylene (C2Cl4) and trichloroethylene (C2HCl3) were studied with different anaerobic enrichment cultures using the following electron donors: acetate, propionate, butyrate, ... -
Modeling the Number of People Infected With SARS-COV-2 From Wastewater Viral Load in Northwest Spain
(Elsevier, 2022)[Abstract] The quantification of the SARS-CoV-2 RNA load in wastewater has emerged as a useful tool to monitor COVID–19 outbreaks in the community. This approach was implemented in the metropolitan area of A Coruña (NW ... -
Optimization of methane production from solid tuna waste: Thermal pretreatment and co-digestion
(Elsevier, 2024)[Abstract] Fish canning industries generate large amounts of solid waste during their processing operations, creating a significant environmental challenge. Nonetheless, this waste can be efficiently and sustainably treated ... -
Optimization of nutrient supply in a downflow gas-phase biofilter packed with an inert carrier
(Springer, 2002-01)Several methodologies were tested to supply nutrients to a downflow biofilter packed with perlite and used to treat toluene-polluted air. Despite the presence of an inorganic carrier, elimination capacities of up to around ... -
Optimization of the landfill leachate treatment by the Fenton process
(Wiley-Blackwell, 2013-03)The Fenton process was used with the objective of improving the biodegradability of the leachate pretreated biologically up to a value compatible with a subsequent biological treatment. The optimum reaction and settlement ... -
Optimization of the treatment of carbon monoxide-polluted air in biofilters
(Elsevier, 2009-01)This work is the first extensive study on the removal of carbon monoxide from polluted air in biofilters. It compares the performance of two packing materials, namely lava rock alone and a mixture of peat and lava rock. ...