AWWA ACE68647

This powerpoint presentation presents the design, construction, and start-upchallenges of the Long Beach submerged seawater intake and pretreatment system. Preliminary waterquality results are provided and compared against other pretreatment methods (i.e.microfiltration/ultrafiltration membranes) used for seawater desalination. The pretreatment performance of the intake gallery is compared to otherpretreatment methods commonly used by membrane seawater desalination facilities (i.e.microfiltration/ultrafiltration membranes).With this novel approach being one of the first of its kind, several challenges wereencountered during the detailed design phase. These design challenges included:overcoming local hydrogeologic limitations (i.e. poor permeability, minimal sanddepth, etc.);impact of tidal fluctuations on operating conditions (i.e. pump head, minimalsubmergence of gallery) and water quality;fouling/clogging of intake gallery;scouring of intake/discharge gallery; and,regulatory requirements (construction impacts on marine life, constructiondewatering, maintaining public access, etc.). Includes tables.

Product Details

Edition:

Vol. - No.

Published:

11/01/2008

Number of Pages:

41

File Size:

1 file , 6.9 MB