• AWWA ACE63244
Provide PDF Format

Learn More

AWWA ACE63244

  • Comparative Performance of High-Rejection SWRO Membranes
  • Conference Proceeding by American Water Works Association, 06/01/2006
  • Publisher: AWWA

$12.00$24.00


This slide presentation outlines a study on the comparative performance of high-rejection SWRO membranes. Specific study objectives included:evaluate performance of three commerciallyavailable, high rejection SWRO elements forboron and TTS removal;compare removal rates with projected datafrom supplier's software programs; and,estimate cost for feedwater alkalinization tomeet WHO standard. Topics outlined include: regulatory limits for boron; boron speciation in water, seawater, temperature effect, and salinity effect. An SWRO pilot plant is outlined and includes: experimental protocol; pilot configuration; reverse osmosis (RO) system with pH adjustment; manufacturer element specifications; RO System PerformancePermeate Boron Concentrations; manufacturer's projected permeateBoron versus Feed pH; manufacturer's projected permeateTDS versus Feed pH; SWRO TDS and Boron rejection; and, estimated cost of Boron compliance. Conclusions were:at ambient pH (8.0), only manufacturer A met permeateboron goal of 0.5 mg/L;feedwater alkalinization to pH 9.0 was required for allsuppliers to comply boron goal;TTS rejection was poor predictor of pH impact on boronrejection, all supplier's products show constant TTSrejection over range of feedwater pH values evaluated; and,estimated cost of feedwater alkalinization to pH 9.0 is$0.12/kgals of permeate. This represents an additionaloperating expense of <10%. Includes figures.

Related Products

AWWA JAW6147

AWWA JAW6147

Journal AWWA - Increasing Employee Security and Productivity With Computers ..

$15.00 $30.00

AWWA WQTC52994

AWWA WQTC52994

Optimizing Cryptosporidium Inactivation Credit With Ozone at Las Vegas Using the Integrated Disinfec..

$12.00 $24.00

AWWA ACE61703

AWWA ACE61703

Organic Chloramine Formation in Model Distribution Systems..

$12.00 $24.00

AWWA ACE58129

AWWA ACE58129

The Optimization of MF/UF Membrane Systems on Direct and Clarified Feed Applications - a Real Life E..

$12.00 $24.00