نتایج جستجو برای: continuous bioreactor
تعداد نتایج: 266869 فیلتر نتایج به سال:
BACKGROUND The enzymatic production of biodiesel through alcoholysis of triglycerides has become more attractive because it shows potential in overcoming the drawbacks of chemical processes. In this study, we investigate the production of biodiesel from crude, non-edible Jatropha oil and methanol to characterize Burkholderia cepacia lipase immobilized in an n-butyl-substituted hydrophobic silic...
Introduction. We describe a continuous modelling and simulation framework aimed at monitoring and steering a recently developed bioreactor for cartilage production based on mesenchymal stem cells (MSCs). This bioreactor provides online-access to the cell density by acoustic measuring sections. An appropriate oxygen distribution throughout the bioreactor is essential for a successful expansion a...
/ 11 Abstract / 12 / 13 One prerequisite for plant functional genomic projects is the development of a high-throughput transformation platform. As the / 14 moss Physcomitrella patens can be transformed via PEG-mediated DNA-uptake into protoplasts, a semi-continuous bioreactor / 15 culture of this plant was optimised regarding protoplast isolation efficiencies. Under standard conditions protopla...
Continuous - stirring of a Granular Sludge Immersed Membrane Bioreactor for Treating Food Wastewater
To reduce the membrane fouling in an immersed membrane bioreactor (MBR) during the treatment of food wastewater, an additional continuous stirring was introduced. The results showed that both a better membrane performance and a higher degradation efficiency for food wastewater were obtained. The membrane contributed mostly in concentrating the activated sludge. The bioreactor ensured the degrad...
Formaldehyde (FA) is a very toxic pollutant. FA in indoor air has a negative effect on human health and should be removed by ventilation or by conversion to non-toxic products. The formaldehyde dehydrogenase (FdDH), a NADand glutathione-dependent enzyme from recombinant methylotrophic yeast Hansenula polymorpha, was tested for its ability to oxidize airborne FA. A continuous fluidized bed biore...
An adapted bioactive foamed emulsion bioreactor for the treatment of benzene vapor has been developed. In this reactor, bed clogging was resolved by bioactive foam as a substitute of packing bed for interfacial contact of liquid to gaseous phase. The pollutant solubility has been increased using biocompatible organic phase in liquid phase and this reactor can be applied for higher inlet benzene...
Hydrolyzed wheat straw was converted into carboxylic acids and biohydrogen using digesting bacteria. The fermentations were carried out using both free and membrane-encased thermophilic bacteria (55°C) at various OLRs (4.42-17.95g COD/L.d), in semi-continuous conditions using one or two bioreactors in a series. The highest production of biohydrogen and acetic acid was achieved at an OLR of 4.42...
The paper investigates the static and dynamic behavior of a continuous flow bioreactor for the aerobic biodegradation of municipal and industrial waste. The unstructured kinetic model for the bioreactor accounts for oxygen limitation in the bioreactor model while the growth rate is described by the biomass-dependent Contois model. This kinetic model is known to explain the aerobic biodegradatio...
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