• AWWA JAW21663
Provide PDF Format

Learn More

AWWA JAW21663

  • Journal AWWA - Improving the Initial Effluent Quality of Dual-Media Filter by Coagulants in Backwash
  • Journal Article by American Water Works Association, 12/01/1987
  • Publisher: AWWA

$15.00$30.00


The purpose of the research described in this article was to develop a revised conceptual theory for filter ripening and to evaluate the effect of adding various coagulants to backwash water as a means of reducing the magnitude and duration of the filter ripening sequence. It was found that the use of coagulants in backwash water can be very effective in improving initial effluent quality, with the optimum coagulant type being alum or the primary coagulant. The time for injection of the coagulant into the backwash water, the volume of water used for backwashing, and the remnant volume above the filter media after backwashing were also optimized. Includes 12 references, 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