Many practical applications exploit an external local magnetic field – magnetic obstacle – as an essential part of their construction. Recently, Votyakov et al. (2007) have demonstrated that the flow of an electrically conducting fluid influenced by an external field can show several kinds of recirculation. The present paper reports a 3D numerical study whose some results are compared with an e...

This work studied the influence of effluent recirculation upon the kinetics of anaerobic degradation of dairy wastewater in the feedless phase of intermittent upflow anaerobic sludge bed (UASB) reactors. Several laboratory-scale tests were performed with different organic loads in closed circuit UASB reactors inoculated with adapted flocculent sludge. The data obtained were used for determinati...

Results from numerical simulations and guidance from an approximated corrected-theory, developed by Oliveira and Pinho (1997), (Oliveira, P.J. and Pinho, F.T. 1997. Pressure drop coecient of laminar Newtonian ̄ow in axisymmetric sudden expansions. Int. J. Heat and Fluid ̄ow 18, 518±529) have been used to arrive at a correlation expressing the irreversible loss coecient for laminar Newtonian ̄...

The turbulent air-sea heat flux feedback (α, in W m−2 K−1) is a major 7 contributor to setting the damping timescale of sea surface temperature (SST) 8 anomalies. In this study we compare the spatial distribution and magnitude of 9 α in the North Atlantic and the Southern Ocean, as estimated from the ERA10 Interim reanalysis dataset. The comparison is rationalized in terms of an upper 11 bound ...

Inserting porous media into the micro-scale combustor space could enhance heat recirculation from flame zone, and thus extend flammability limits improve stability. In context of micro-combustors, pore size is comparable to characteristic length. It insufficient treat medium as a continuum with volume-averaged model (VAM). Therefore, pore-scale (PSM) developed consider detailed structure better...

1. Introductory Remarks 2. Evaporation Processes 3. Multi-stage Flash Desalination Process 4. Seawater Supply System 5. Seawater Recirculation System 6. Feed Water System 7. Brine Blowdown System 8. Vacuum Raising and Maintaining System 9. Brine Recirculation System 10. Anti-scale Dosing System 11. Condensate Flow from Brine Heater System 12. Distillate System 13. Plant Loading Glossary Bibliog...

To determine the role of enterohepatic recirculation on its nonlinear elimination, we studied the enteral absorption of mezlocillin in rabbits. Mezlocillin was not substantially absorbed from the stomach or duodenum. We conclude that enterohepatic recirculation does not cause the dose-dependent elimination kinetics of mezlocillin.

In this paper, we propose to regulate the output of an autocatalytic bioprocess by means of a recirculation loop. We show that controlling the recirculation flow rate allows the stabilization of a particular output under a constant or even an unknown input flow. Furthermore, we obtain a convergence in finite time with a smooth feedback law Copyright c ©2005 IFAC.

Citation: Nguyen MT, Allemann L, Ziemba C, Larivé O, Morgenroth E and Julian TR (2017) Controlling Bacterial Pathogens in Water for Reuse: Treatment Technologies for Water Recirculation in the Blue Diversion Autarky Toilet. Front. Environ. Sci. 5:90. doi: 10.3389/fenvs.2017.00090 Controlling Bacterial Pathogens in Water for Reuse: Treatment Technologies for Water Recirculation in the Blue Diver...

The gas phase dynamics of an inverted, stagnation point flow CVD reactor were studied by both experiment and modeling. The axial centerline temperature profile in the reactor was measured by analysis of the rotational Raman spectra from the carrier gas (N or H ) as a function of the inlet flow velocity and the reactor aspect ratio. It was found that a larger temperature gradient 2 2 normal to t...