• AWWA MTC50241
Provide PDF Format

Learn More

AWWA MTC50241

  • Increasing the Efficiency of Dead-End Ultrafiltration Systems
  • Conference Proceeding by American Water Works Association, 01/01/1999
  • Publisher: AWWA

$12.00$24.00


Cross flusing can be applied in dead-end ultrafiltration systems to improve the efficiency of cleaning and reduce the consumption of chemicals. The efficiency of an air-water, two phase cross flush was compared with a water cross flush, in a horizontal dead-end ultrafiltration system. Crossflushing was more effective when the velocity in the fiber was in the turbulent regime (v=1.6 m/s). No beneficial effect of using a gas-liquid, two phase flow in a horizontal, dead-end ultrafiltration system was observed. This was attributed to the fact that the air:water ratio of the cross flush was too low. A periodic water flush is required to remove residual air bubbles after an air/water cross flush in a horizontal ultrafiltration system, otherwise the accumulation of air bubbles on the surface of the membrane will reduce the effective membrane area for filtration. Includes 8 references, tables, figures.

Related Products

AWWA ACE65201

AWWA ACE65201

Planning for Knowledge Retention Now Saves Valuable Organizational Resources Later..

$12.00 $24.00

AWWA JAW17549

AWWA JAW17549

Journal AWWA - 226Ra and 228Ra in Water Supplies ..

$15.00 $30.00

AWWA ACE99544

AWWA ACE99544

GAC and PAC Systems Analysis: Implications of the Regulation of s-Triazine Metabolites..

$12.00 $24.00

AWWA JAW48150

AWWA JAW48150

Journal AWWA - SDWA Capacity Development..

$15.00 $30.00