By Rajindar Singh
Membrane know-how and Engineering for Water Purification, second edition is written in a pragmatic kind with emphasis on: technique description; key unit operations; structures layout and prices; plant gear description; apparatus set up; security and upkeep; strategy keep watch over; plant start-up; and operation and troubleshooting. it really is supplemented by means of case stories and engineering rules-of-thumb. the writer is a chemical engineer with wide adventure within the box, and his technical wisdom and useful information within the water purification are summarized succinctly during this new edition.
This booklet will let you know which membranes to take advantage of in water purification and why, the place and while to exploit them. it's going to assist you to troubleshoot and increase functionality and offers case experiences to aid knowing via real-life examples.
- Membrane know-how part up-to-date to incorporate ahead osmosis, electrodialysis, and diffusion dialysis
- Hybrid Membrane platforms multiplied to hide 0 liquid discharge, salt restoration and elimination of hint contaminants
- Includes a brand new part on plant layout, strength, and economics
Read Online or Download Membrane Technology and Engineering for Water Purification, Second Edition: Application, Systems Design and Operation PDF
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Extra info for Membrane Technology and Engineering for Water Purification, Second Edition: Application, Systems Design and Operation
The net effect is reduced cake build-up and less fouling [18, 31]. The basic flux relations and separation principles for UF process discussed above are applicable to cross-flow MF. 3 is also applicable to MF except that the diffusivities of larger particle and colloids are an order of magnitude smaller than those for macromolecules separation in UF. However, in the case of symmetric1 MF membranes, the separation mechanism is not always a simple sieve mechanism where, the particles, whose sizes are smaller than the pore size, flow freely through the pore while the larger particles are rejected.
The intent is to develop membranes that are less prone to fouling by making them smoother, hydrophilic and more negatively charged. Ceramic UF and MF membranes are microporous sieves in which separation takes place on the basis of the size and speed of a particle through a tortuous path of the pore. Capillary action, adsorption phenomena and surface charge all play roles in retention and separation. Although ceramic membranes can be manufactured with a sharp pore size distribution, they are limited in their size-exclusion capability.
RO, NF, conventional UF), the feed solution flows tangentially across the membrane surface. The cross-flow or tangential velocity continuously removes particles from the membrane surface by shear forces especially when operating in a turbulent regime. The net effect is reduced cake build-up and less fouling [18, 31]. The basic flux relations and separation principles for UF process discussed above are applicable to cross-flow MF. 3 is also applicable to MF except that the diffusivities of larger particle and colloids are an order of magnitude smaller than those for macromolecules separation in UF.