Abstract: From fall 1999 to spring 2003, an introductory environmental engineering course was revised to include an inquiry-based “open” experiment for enhanced student learning. The students designed and conducted experiments to ...

Abstract: Steady‐state substrate utilization in biofilms has traditionally been modeled by coupling Fickian diffusion with Monod reaction kinetics. An inherent assumption in most of the previous models was that the pH remains constant ...

Abstract: A new method was developed using a flow‐through cell for the measurement of oxidation‐reduction potential (ORP) for anaerobic microbial cultures. The method involves passing the reactor effluent through a recycle line ...

Abstract: Steady-state models of nitrifying biofilms are developed taking into account the mass transfer of neutral and ionic species, electroneutrality, pH-dependent Monod kinetics, chemical equilibrium, and the presence of a ...

Abstract: Steady-state models of nitrifying biofilms have been developed that take into account the mass transfer of neutral and ionic species, electroneutrality, pH-dependent Monod kinetics, chemical equilibrium, and the presence ...

Abstract: A one-dimensional mathematical model was developed to simulate pH control using an encapsulated phosphate buffer during denitrification in a sand column. The parameters required for the model were obtained from direct ...