Mass transfer of gases in liquid solvents is a fundamental process during bubble generation for specific purposes or, vice versa, removal entrapped bubbles. In our work, we address the growth dynamics trapped slug vertical glass cylinder under water barrier after replacing ambient air atmosphere by CO${}_{2}$ at same or higher pressure. The asymmetric exchange gaseous solutes between CO${}_{2}$...

patients with lower peritoneal membrane solute Introduction transport characteristics. There is yet another method, which I call a combinaAutomated peritoneal dialysis (APD) is a method tion PD because it is neither exclusively nocturnal nor where exchanges are performed mostly without active continuous. In this method, nocturnal exchanges are participation of a person but by a pre-set peritone...

Aerobic granular sludge is a novel compact biological wastewater treatment technology for integrated removal of COD (chemical oxygen demand), nitrogen, and phosphate charges. We present here a multiscale model of aerobic granular sludge sequencing batch reactors (GSBR) describing the complex dynamics of populations and nutrient removal. The macro scale describes bulk concentrations and effluent...

A laboratory investigation provided preliminary comparison of trace element contaminant water treatment capabilities for four iron-based filter materials. The iron-based filter materials tested were zero-valent iron (ZVI), porous iron composite (PIC), sulfur modified iron (SMI), and iron oxide/hydroxide (IOH). Two types of trace element contaminant solutions were tested, one combined As, Cr, an...

The previous decade saw the generation of a series of consensus and evidence-based guidelines for the optimal management of dialysis patients. The majority of these have emanated from national and regional committees. There is not always agreement among these documents; part of this disparity may have to do with the nuances of dialysis practice in different parts of the world. The International...

In this paper, the effects of several factors such as surfactant concentration, solute concentration, impeller speed and holdup on the mean drop diameter ( ) during emulsification have been studied in a single-stage mixer-settler extractor. A video technique has been developed in order to measure drop size distribution in the mixing chamber using a digital camera. The results show decreases wi...

Volume Four 5-1 THEORETICAL ANALYSIS OF CONCENTRATION POLARIZATION EFFECT ON VOC REMOVAL BY PERVAPORATION 1S.X. Liu, 2L.M. Vane, and 1M. Peng 1Department of Food Science, Rutgers University, New Brunswick, New Jersey 08901-8520; Phone: (732) 932-9611 X240; Fax: (732) 932-6776; Email: [email protected]. 2Clean Process and Product Division, National Risk Management Research Laboratory, U.S. E...

Size dependence of solute diffusivity has been investigated using molecular dynamics simulations for a range of solute radii in a binary mixture consisting of solute and solvent species. We demonstrate that the Stokes-Einstein relationship between self diffusivity and solute radius breaks down over a range of solute-solvent size ratios. This is a result of the previously known Levitation Effect...