• AWWA WQTC52996
Provide PDF Format

Learn More

AWWA WQTC52996

  • The Effects of Filtration Rate Fluctuations on Cryptosporidium Sized Particle Breakthrough
  • Conference Proceeding by American Water Works Association, 01/01/2000
  • Publisher: AWWA

$12.00$24.00


Filtration is an essential process in drinking water treatment.Recent Cryptosporidium outbreaks have highlighted concerns about filter efficiency and in particular particle breakthrough. Breakthrough has been linked to the ripening stage, when up to 90% of the entire breakthrough occurs, due to poor removal, and also during flow rate changes. This study aims to expand upon this knowledge, specifically by determining when flow rate changes occur. Laboratory experimentswere conducted on a single filter column which had a starting flow rate of 5 m/h. Various flow increases were introduced instantaneously at different points during the filter run with each flow change being 30 minutes in duration, after which the flow was returned to the starting value. The results show that flow rate changes cause an increase in particle breakthrough. This effect is more pronounced with flow changes later on in the runs and with higher magnitude flow rate increases. Includes 9 references, table, figures.

Related Products

AWWA SOURCES66408

AWWA SOURCES66408

Market Research Study: Barriers and Opportunities to Sustainable Landscaping Practices in the Reside..

$12.00 $24.00

AWWA 51488

AWWA 51488

Piloting New Work Practices in Utility Maintenance..

$12.00 $24.00

AWWA JTMGT57479

AWWA JTMGT57479

Fair Impact Fees for Large Non-Residential Users..

$12.00 $24.00

AWWA JAW3798

AWWA JAW3798

Journal AWWA - Evaluating the Effects of Earthquakes on Buried Pipelines ..

$15.00 $30.00