Listar Bioenxeñaría Ambiental e Control de Calidade (BIOENGIN) por data de publicación
Mostrando ítems 1-20 de 107
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Trophic relationships between Saccharomyces cerevisiae and Lactobacillus plantarum and their metabolism of glucose and citrate
(ASM, 1991-04)Glucose and citrate are two major carbon sources in fruits or fruit juices such as orange juice. Their metabolism and the microorganisms involved in their degradation were studied by inoculating with an aliquot of fermented ... -
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 ... -
Treatment of slaughterhouse wastewater in a UASB reactor and an anaerobic filter
(Elsevier, 1997-06)A study was performed to assess the feasibility of anaerobic treatment of slaughterhouse wastewaters in a UASB (Upflow Anaerobic Sludge Blanket) reactor and in an AF (Anaerobic Filter). Among the different streams generated, ... -
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, ... -
Parameters affecting performance and modeling of biofilters treating alkylbenzene-polluted air
(Springer, 2001-03)Both short-term and long-term biofiltration experiments were undertaken with a biofilter inoculated with a defined microbial consortium and treating an alkylbenzene mixture. The results obtained with such a biofilter in ... -
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 ... -
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 ... -
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 ... -
Energía y sostenibilidad : incidencia en el medio marino
(Netbiblo, 2003)[Resumen] En un momento en el que la preocupacion mundial por la sostenibilidad del planeta esta presente ya de forma permanente en todos los foros, es importante reflexionar sobre cuales son las ideas fundamentales en las ... -
Biofiltration of waste gases in a reactor with a split-feed
(Wiley-Blackwell, 2003-06)The efficiency of using different feed strategies was evaluated in the case of a gas-phase biofilter packed with an inert carrier material. During a preliminary control-period, the biofilter was first fed with a single ... -
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 ... -
Biofiltration of waste gases containing a mixture of formaldehyde and methanol
(Springer, 2004-04)Several biofilters and biotrickling filters were used for the treatment of a mixture of formaldehyde and methanol; and their efficiencies were compared. Results obtained with three different inert filter bed materials (lava ... -
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 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 ... -
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 ... -
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 ... -
Partial Nitrification of Wastewater from an Aminoplastic Resin Producing Factory
(IWA Publishing, 2005)Nitrification via nitrite was studied in two aerobic reactors treating wastewater from an aminoplastic resin producing factory at HRT varying between 1.37-1.89 and 2.45-3.63 days. Both reactors were fed with concentrations ... -
Biodegradation and effect of formaldehyde and phenol on the denitrification process
(Elsevier, 2005)Formaldehyde and phenol biodegradation during the denitrification process was studied at lab-scale, first in anoxic batch assays and then in a continuous anoxic reactor. The biodegradation of formaldehyde (260 mg l−1) as ... -
Bioprocesses for the removal of nitrogen oxides from polluted air
(Wiley-Blackwell, 2005)Nitrogen oxides (NOx) of environmental concern are nitrogen monoxide (NO) and nitrogen dioxide (NO2). They are hazardous air pollutants that lead to the formation of acid rain and tropospheric ozone. Both pollutants are ... -
Biodegradation of toluene by the new fungal isolates Paecilomyces variotii and Exophiala oligosperma Biotechnology. 2005;32(1):33-7
(Springer, 2005-02)Two new fungal strains, namely Paecilomyces variotii and Exophiala oligosperma, were isolated on toluene as the sole carbon and energy source, mineralizing the substrate into carbon dioxide. Fungal strains isolated so far ...
