Experimental studies of solute distribution coefficient and transfer coefficient in reverse osmosis membrane.

Membranes, Tagged Components, and Membrane Transfer Coefficient **

Concepts, introduced into physics in the analysis of the Peltier effect by Thomson in 1854 and generalized by Onsager in 1931, have made it clear that the equations commonly used for the description of membrane transfer processes are incomplete. Kedem and Katchalsky' have recently emphasized the utility of these concepts in removing inconsistencies of interpretation introduced by the use of inc...

Experimental measurement of heat transfer coefficient and mass of deposited CaSO4 in subcooled flow boiling condition

Fouling is a common, fundamental and costly problem in heat transfer systems, which reduces thermal efficiency of equipment, increases the energy loss and causes strong damage to the heat transfer equipment in various industries. The main causes of fouling on the heat transfer surfaces are salts with inverse temperature-solubility in the fluid which calcium sulfate is one of the most important ...

experimental investigation of power consumption, mass transfer coefficient and flow regime in gas-liquid dispersion systems

Overview of Reverse Osmosis for Chemical Engineers Part 1, Fundamentals of Membrane Mass Transfer

Reverse osmosis (RO). has become a standard unit operation in Chemical Engineering. This separation process can be used for a wide variety of applications including: desalination of sea water, treatment of industrial wastes, concentration of food products, and recovery of value materials from solution mixtures. In order to best utilize RO it is necessary to have a fundamental understanding of t...

Effect of Organoclay on the Performance of Reverse Osmosis Membrane

This study investigated the effect of Cloisite15A (C15A) organoclay in the substrate layer on the performance of reverse osmosis (RO) membranes. The substrate of the RO membranes was modified using different loading of C15A (ranging from 0.3 - 0.7 wt%) within polysulfone (PSf) substrate and the polyamide (PA) selective layer was formed on the top. Effect of the modified substrate layer on the w...