Braz. J. Chem. Eng. vol.26 número3

Addition of two or more vitamins tended to decrease final biomass concentration, with higher specific growth rates, lower lactose consumption (data not shown) and higher

An appropriate agreement between the predicted and experimental values of soluble COD, VFA concentration, pH, biogas production rate and fluidized bed height was obtained

Therefore, besides being strictly necessary to reduce the environmental impacts resulting from methane, whose impact is approximately twenty times higher than that of the

According to Figure 4, at 254 nm, the UV radiation transmittance is approximately 60 %, a considerable fraction of photons, around 40 %, being absorbed by the use of glass. It

The total removal of phenol was achieved within 40 minutes of reaction at 130ºC and a catalyst loading of 6.0 g/L, reaffirming that this technique is a good alternative to

Figure 5a shows the elimination of 2-HBA as well as the formation and disappearance of the main reaction intermediates (2,3-dihydroxy benzoic acid (2,3-DHBA); 2,5-dihydroxy

Between the peak and the position where n=1, the mass transfer and the characteristics of related profiles are mainly influenced by the surface (where molecular diffusion is

In the Fourier transform, it is observed that the pressure spectrum related to fixed bed condition is characterized by the presence of lower frequency and amplitudes than those