Topic
Bioreactor
About: Bioreactor is a research topic. Over the lifetime, 9980 publications have been published within this topic receiving 192690 citations. The topic is also known as: bioreactors.
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TL;DR: The two antibiotics are weakly degraded even with acclimated sludge, and only a small fraction of these compounds was retained when the fouling of the membrane increased, so the hypothesis of this study lies in the development of NF membrane and its cut-off support in order to retain micropollutants and increase micropolutant concentration in the bioreactor.
110 citations
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TL;DR: The experiment showed that bacteria immobilized with coconut shell biochar in continuous mode showed much better degradation than batch study without immobilization, and the kinetics parameters μmax, Ks, and μmaxKs were found to be 0.0117 L/mg/day using Monod model.
110 citations
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TL;DR: An enzymatic method for the continuous production of (S)−(+)−2−(6‐methoxy‐2‐naphthyl) propionic acid (Naproxen) has been developed and the performance and the productivity of the bioreactor were evaluated as a function of the critical reaction parameters such as temperature, substrate concentration, and product inhibition.
Abstract: An enzymatic method for the continuous production of (S)−(+)−2−(6-methoxy-2-naphthyl) propionic acid (Naproxen) has been developed. The process consists of a stereoselective hydrolysis of the racemic Naproxen ethoxyethyl ester catalyzed by Candida cylindracea lipase. The reaction has been carried out in a continuous-flow closed-loop column bioreactor packed with Amberlite XAD−7, a slightly polor resin on which the lipase has been immobilized by adsorption. Various immobilization conditions as well as the properties of the immobilized lipase have been studied. The performance and the productivity of the bioreactor were evaluated as a function of the critical reaction parameters such as temperature, substrate concentration, and product inhibition. By using a 500-mL column bioreactor, 1.8 kg of optically pure (S)-(+)-Naproxen were produced after 1200 h of continuous operation with a slight loss of the enzymatic activity.
109 citations
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TL;DR: Results indicate that fungal bioreactors may be an effective alternative to conventional abatement technologies for treating high concentrations of pollutants in waste gas streams.
Abstract: Stricter regulations on volatile organic compounds and hazardous air pollutants have increased the demand for abatement technologies. Biofiltration, a process in which contaminated air is passed through a biologically active bed, can be used to remove these pollutants from air streams. In this study, a fungal vapor-phase bioreactor containing a strain of the dimorphic black yeast, Exophiala lecanii-corni, was used to treat a gas stream contaminated with toluene. The maximum toluene elimination capacity in short-term tests was 270 g m−3 h−1, which is 2 to 7 times greater than the toluene elimination capacities typically reported for bacterial systems. The fungal bioreactor also maintained toluene removal efficiencies of greater than 95% throughout the 175-day study. Harsh operating conditions such as low moisture content, acidic biofilms, and nitrogen limitation did not adversely affect performance. The fungal bioreactor also rapidly reestablished high toluene removal efficiencies after an 8-day shutdown period. These results indicate that fungal bioreactors may be an effective alternative to conventional abatement technologies for treating high concentrations of pollutants in waste gas streams.© 2001 John Wiley & Sons, Inc. Biotechnol Bioeng 75: 550–558, 2001.
109 citations
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TL;DR: The described process documented the dual benefit of renewable energy generation in the form of H2 with simultaneous wastewater treatment utilizing it as substrate.
109 citations