• AWWA MTC61140
Provide PDF Format

Learn More

AWWA MTC61140

  • Comparison of Membrane and Traditional Softening Technologies for Use at an Existing Groundwater Treatment Plant
  • Conference Proceeding by American Water Works Association, 03/01/2005
  • Publisher: AWWA

$12.00$24.00


Greater Cincinnati Water Works evaluated membrane softening technologies (i.e., nanofiltration,reverse osmosis, and electrodialysis reversal) and conventional softening technologies (i.e.,lime/soda softening and ion exchange) for use at the City of Mason Water Treatment Plant. Thebasis for evaluation included maximizing system recovery, minimizing residuals production toreduce or eliminate sewer use fees, making use of the existing plant as a pretreatment, orsupplement, to the recommended softening alternative, and optimization of finished waterchemistry to minimize corrosion in the distribution system.Nanofiltration, electrodialysis reversal, and lime/soda softening are able to meet the water qualitygoals established by Greater Cincinnati Water Works. Ion exchange is capable of meeting thefinished water hardness goals established, but corrosion parameters and increases in finishedwater sodium concentrations are a concern. Residuals handling and disposal significantlyimpacted the operations costs. In this instance, it is necessary to dispose of concentrate from themembrane softening technologies, as well as the spent regenerant from the ion exchange process,to the sanitary sewer resulting in significant sewer use fees. Lime softening sludge can be landapplied at much lower costs. Finally, groundwater is provided by a limited yield aquifer and thelimited recovery of the membrane alternatives (because of the nature of the foulants present)represents a significant hurdle to implementation of these technologies for the City of Mason supply. Includes tables, figures.

Related Products

AWWA WQTC58935

AWWA WQTC58935

Turbidity Formation and Removal Following Forced-Draft Aeration..

$12.00 $24.00

AWWA WSC70052

AWWA WSC70052

Do You Know How Good Your Utility's Security Really Is?: Pima County Regional Wastewater Reclamation..

$12.00 $24.00

AWWA JAW68582

AWWA JAW68582

Journal AWWA - Legislation/Regulation -- Another View on Global Warming..

$15.00 $30.00

AWWA JAW71678

AWWA JAW71678

Journal AWWA - Particulate Arsenic Release in a Drinking Water Distribution System..

$15.00 $30.00