AWWA MTC64538

At the old North Carter Lake Direct Filter Plant, put into service in 1962, capacityhas had to be reduced by 25% to ensure treatment compliance with state andfederal regulations. To regain this capacity and recover performance, membranetechnology was chosen for the improvements. Membranes were pre-bid andUSFilter - Memcor submerged membrane system was the successful bidder. Inorder to validate the expected performance of the new membrane technology,pilot tests were performed. The primary objective of the pilot study was to confirmflux, recovery, backwash and CIP interval, as well as demonstrating requiredfiltrate quality.In a pilot study over more than 6 months most of the parameters were proven.However, the manufacturer fell short to demonstrate consistent achievement ofthe expected CIP intervals during the coagulant addition phase. Through thetesting of an alternative coagulant the anticipated CIP intervals were validated,total organic carbon (TOC) removal was accomplished and the proof pilot was successfully completed.Collected data during the pilot trials is presented and discussed.Soon after the pilot trials ended, construction of the new water treatment facilitiesstarted. Implementation of the concept began in winter 2005/2006 and continueduntil winter 2006/2007. Currently the system is in a 60 day startup phase with asubsequent 60 day proof phase. Includes 2 references, tables, figures.

Product Details

Edition:

Vol. - No.

Published:

03/01/2007

Number of Pages:

16

File Size:

1 file , 3.6 MB