Prashant K. Bhattacharya

TL;DR: The membrane area is the most important decision variable in designing a spiral wound module for desalination of brackish water as well as seawater, whereas ΔP is the best decision variable for a tubular module for the desalinated water (where the quality of the permeate is of prime importance).

TL;DR: In this paper, the influence of independent variables on the retention of the surfactant and chromate ions as well as on the permeating flux was studied in micellar enhanced ultrafiltration (MEUF) experiments.

TL;DR: In this paper, a mathematical model was developed to describe the separation of organic solutes by MEUF and predict permeate solute concentrations under varying operating conditions, and the effect of pressure and feed CPC concentration on the behaviour of permeate flux was explained as a consequence of the formation of concentration polarized layer of CPC, upstream of the membrane surface.

TL;DR: In this article, Sherwood-number relations for prediction of the mass-transfer coefficient for developing concentration boundary-layer have been obtained for laminar flow-regime from first principles The common flow-modules, namely, rectangular channel, tubular and radial crossflow are considered The relationships developed include the effect of suction through the membrane Relevant relations for estimation of mass transfer coefficient for cross-flow reverse osmosis and ultrafiltration are formulated

TL;DR: In this paper, a mathematical model was formulated for simultaneous prediction of permeate flux and observed rejection of sucrose in a stirred ultrafiltration cell, and the characteristics of the gel layer and other relevant parameters of the model were determined by independent sets of experiments.