scholarly journals Long-Term continuous culture of hepatocytes in a packed-bed reactor utilizing porous resin

1994 ◽  
Vol 43 (7) ◽  
pp. 635-644 ◽  
Author(s):  
Hirotoshi Miyoshi ◽  
Kennichi Yanagi ◽  
Norio Ohshima ◽  
Hideki Fukuda
1992 ◽  
Vol 37 (3) ◽  
pp. 316-320 ◽  
Author(s):  
Kennichi Yanagi ◽  
Hirotoshi Miyoshi ◽  
Hideki Fukuda ◽  
Norio Ohshima

Author(s):  
Francesco Spennati ◽  
Salvatore La China ◽  
Giovanna Siracusa ◽  
Simona Di Gregorio ◽  
Alessandra Bardi ◽  
...  

This study demonstrated that a microbial community dominated by fungi can be selected and maintained in the long-term under non-sterile conditions, in a pilot-scale packed-bed reactor fed with tannery wastewater. During the start-up phase, the reactor, filled with 0.6 m3 of polyurethane foam cubes, was inoculated with a pure culture of Aspergillus tubingensis and Quebracho tannin, a recalcitrant compound widely used by tannery industry, was used as sole carbon source in the feeding. During the start-up, fungi grew attached as biofilm in carriers that filled the packed-bed reactor. Subsequently, the reactor was tested for the removal of chemical oxygen demand (COD) from an exhaust tanning bath collected from tanneries. The entire experiment lasted 121 days and average removals of 29% and 23% of COD and dissolved organic carbon (DOC) from the tannins bath were achieved, respectively. The evolution of the microbial consortium (bacteria and fungi) was described through biomolecular analyses along the experiment and also developed as a function of the size of the support media.


Thermochemical energy storage is one of the process which is capable of both short term and long term energy storage. Incorporating this storage method with solar energy is important when we considering seasonal or long term thermal energy storage. Thermochemical energy storage uses chemical reactions to store and release the energy. The charging or storage temperature of the thermochemical material (TCM), porosity of the reactor bed, concentration of reactants etc. are some of the important factors which affects the storage and release of the energy of a TCM. In this work we investigate the energy release from MgSO4 by modelling the hydration reaction of MgSO4 in a packed bed reactor with continuous flow of moist air through the bed. It is observed that the parameters such as porosity of the reactor bed, mass flow rate of moist air, particle diameter, concentration of water vapour etc. play an important role on the energy release from the TCM. Thaguchi method is used to optimize these parameters. The porosity of the reactor bed and the particle size of the TCM are found to be crucial in energy release


2016 ◽  
Vol 41 (19) ◽  
pp. 8132-8145 ◽  
Author(s):  
Lucas Tadeu Fuess ◽  
Luma Sayuri Mazine Kiyuna ◽  
Marcelo Loureiro Garcia ◽  
Marcelo Zaiat

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