1 / 16

Ultrafiltration fouling control

Ultrafiltration fouling control. Demineralized water backwashing. Louis Lagardère April-July 2009 . 09-07-2009. 1/14. Content. 1. Introduction (theory) 2. Experiment and Installation of the setup 3. Results 4. Conclusion 5. Recommendation. 09-07-2009. 2/14. 1. Introduction (theory).

shadow
Télécharger la présentation

Ultrafiltration fouling control

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Ultrafiltration fouling control Demineralized water backwashing Louis Lagardère April-July 2009

  2. 09-07-2009 1/14 Content • 1. Introduction (theory) • 2. Experiment and Installation of the setup • 3. Results • 4. Conclusion • 5. Recommendation

  3. 09-07-2009 2/14 1. Introduction (theory) • Demi water is better than UF permeate for backwashing (surface water) • Difference demi water/ UF permeate • Impact of sodium :

  4. 09-07-2009 3/14

  5. 09-07-2009 4/14 2. Experiment and installation of the setup Scheme of the setup

  6. 09-07-2009 5/14 Experimental setup Syringe pumps PLC controller Membrane module

  7. 09-07-2009 6/14 Material : - UF membrane : UFC M5 0.8, Norit X-Flow - Pumps : 1 NE1010 pump (backwashing), 1 DUAL-NE1010 (continuous filtration) Filtration protocol : - 1 cycle : 30 s filtration purge (120 or 240 l/(m^2.h)) 15 min filtration (120 or 240 l/(m^2.h)) 1 min backwash purge (2 x filtration flux) 1 min backwash (2 x filtration flux) - 1 experiment : 14 cycles tableau valves Explication cycles

  8. 09-07-2009 7/14 3.Results • Interpretation of the results :

  9. 09-07-2009 8/14 • Feed : Sea water (from den Haag and Zeeland) • Backwash :demi water and UF permeate • Flux : 120 l/(m^2.h)

  10. 09-07-2009 9/14 • Feed : Sea water • Backwash :demi water and UF permeate • Flux : 120 l/(m^2.h) and 240 l/(m^2.h)

  11. 09-07-2009 10/14 • Feed : Sea water • Backwash :demi water and UF permeate • Flux : 240 l/(m^2.h)

  12. 09-07-2009 11/14 • Feed : sea water • Backwash :demi water and UF permeate • Flux :180 l/(m^2.h)

  13. 09-07-2009 12/14 • Feed : 2,5 mg/l Alginic acid + 3 mmol NaCl • Backwash :demi water and UF permeate • Flux :240 l/(m^2.h)

  14. 09-07-2009 13/14 4. Conclusion • For sea water, backwashing with demi water is also more efficient than backwashing with UF permeate • The higher the filtration flux is, the more fouling we can observe

  15. 09-07-2009 14/14 5. Recommendation • More experiments should be conducted for alginic acid solution • Tap water should be tested to check whether it can replace demi water for sea water application (cheaper)

  16. Ultrafiltration fouling control Demineralized water backwashing

More Related