Membrane Technology and Engineering for Water Purification : by Rajindar Singh

By Rajindar Singh

Membrane know-how and Engineering for Water Purification, second edition is written in a pragmatic kind with emphasis on: method description; key unit operations; structures layout and prices; plant apparatus description; apparatus install; protection and upkeep; approach regulate; plant start-up; and operation and troubleshooting. it truly is supplemented by means of case experiences and engineering rules-of-thumb. the writer is a chemical engineer with wide adventure within the box, and his technical wisdom and sensible information within the water purification are summarized succinctly during this new edition.

This ebook will let you know which membranes to take advantage of in water purification and why, the place and whilst to exploit them. it's going to assist you to troubleshoot and increase functionality and gives case reports to help realizing via real-life examples.

  • Membrane know-how part up to date to incorporate ahead osmosis, electrodialysis, and diffusion dialysis
  • Hybrid Membrane platforms improved to hide 0 liquid discharge, salt restoration and elimination of hint contaminants
  • Includes a brand new part on plant layout, power, and economics

Show description

By Rajindar Singh

Membrane know-how and Engineering for Water Purification, second edition is written in a pragmatic kind with emphasis on: method description; key unit operations; structures layout and prices; plant apparatus description; apparatus install; protection and upkeep; approach regulate; plant start-up; and operation and troubleshooting. it truly is supplemented by means of case experiences and engineering rules-of-thumb. the writer is a chemical engineer with wide adventure within the box, and his technical wisdom and sensible information within the water purification are summarized succinctly during this new edition.

This ebook will let you know which membranes to take advantage of in water purification and why, the place and whilst to exploit them. it's going to assist you to troubleshoot and increase functionality and gives case reports to help realizing via real-life examples.

  • Membrane know-how part up to date to incorporate ahead osmosis, electrodialysis, and diffusion dialysis
  • Hybrid Membrane platforms improved to hide 0 liquid discharge, salt restoration and elimination of hint contaminants
  • Includes a brand new part on plant layout, power, and economics

Show description

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Additional info for Membrane Technology and Engineering for Water Purification : Application, Systems Design and Operation

Sample text

Cross-linked fully aromatic polyamide X-20 has shown superior resistance to fouling and chlorine due to its relatively neutral charge and stronger polyamide-urea bond linkage [20]. , A-15). , NTR-719HF, IFCI, TFS series, PA 300, UTC40HR). , NTR-7400). Note, membrane manufacturer designations are as follows: NTR (Nitto Denko), UTC (Toray), NF & BW (Dow/Film-Tec), CPA & IFCI (Hydranautics/Nitto Denko), PA & TFCs (UOP), A (DuPont). These membranes are either positively charged or negatively charged [22].

Anionic NF membrane – positive charges repel cations especially divalent cations such as Mg2+ while attracting anions especially SO42À. Salt rejection is CaCl2 > NaCl > Na2SO4. • Cationic NF membrane – negative charges repel anions such as SO42À while attracting cations especially Ca2+. Salt rejection is Na2SO4 > NaCl > CaCl2. , desalting cheese whey, removing heavy metals and separating dyes and colour compounds in the textile industry. • Separation of salts with monovalent ions from organics in the MW range of 200– 1000 Da.

UF permeate of highly stable emulsified feed stream can be discharged to a municipal wastewater system. The concentrated recovered oil is less than 5% of the original waste volume. Similarly, tubular UF membranes are used for treating industrial laundry wastewater to recover heavy metals such as lead and chromium to remove oil prior to effluent discharge [18, 26, 31]. UF is also used in high-purity water production for microelectronics and pharmaceuticals as the final polishing step. Double-skinned PES hollow fibre UF membranes provide high particle retention; the membranes have a skin or barrier layer both on the inside and the outside of the fibre.

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