The rotating biological contactor is an attached growth biological treatment used in removal of biodegradable matter present in wastewater is popular due to its simplicity low energy requirement, low land requirement, stable in various shock loading and recirculation not required and low hydraulic retention time. This review paper focuses on various controlling parameter of RBC like organic loa...

overhydrated patients. This made it possible to relieve the uraemic patient from congestive heart failure and to control arterial blood pressure. Ultrafi ltration is generally applied continuously or intermittently, while the dialysis procedure (diffusion of substances across the dialysis membrane) is going on. During the last few years, short-time dialysis (3–4 hr 3 times a week or every other...

Title of Thesis: Recirculation Flow Bioreactor for the Synthesis of Nitroxide and N-Oxide Pharmaceuticals Douglas Lischick: Master of Science in Chemical Engineering, 1989 Thesis directed by: Sam S. Sofer, Professor Sponsored Chair in Biotechnology An investigation of the properties of calcium alginate immobilized hog liver microsomes, rich in FAD-containing mixed function oxidase, was performe...

This paper theoretically describes and experimentally verifies two mechanisms leading to longitudinal dispersion of a passive tracer in a random array of circular cylinders. We focus on moderate Reynolds numbers of order 10–1000, specifically the range characterized by unsteady cylinder wakes. In this regime, two mechanisms contribute to dispersion, each associated with a distinct region of the...

Sampling of triethylamine in the cold-box unit in an auto-manufacturing company in Iran has indicated the average concentration of 430 mg/m3 in the emission duct. In this study a biotrickling filter was used for treatment of triethylamine in air stream. Triethylamine removal efficiency (K/L) pattern was evaluated by changing volumetric loading (L), superficial gas velocity (Uo), empty bed gas r...