AWWA WQTC69360

This powerpoint presentation begins by providing a brief overview of the City of Baltimore, Maryland,Fullerton Filtration Plant Study, that had the objective of providing a reliable barrier against tastes and odors (T&O). A brief overview of tastes and odors in drinking water is presented, along with the proposed T&O control strategy that included the following:utilize powdered activated carbon (PAC) as theprimary T&O barrier;granular activated carbon (GAC) treatment as a secondarybarrier (polishing step);although PAC treatment is highlyeffective, complete removallikely infeasible during severe T&O events; and,GAC to be included for Stage 2 compliance,protection against emerging contaminants. Testing plan, jar testing procedure, odor analysis, pilot-scale PAC evaluation, rapid small scale column tests, and pilot-scale GAC evaluation are covered. Presentation summary indicates the following: jar testing indicated that a wood-based PAC isbest suited for this source water; pilot-scale testing demonstrated that 30 minute PAC contact time is sufficient, and thatsome MIB may remain after PAC treatment (i.e. there is aneed for a secondary T&O barrier); and,RSSCTs / pilot-scale GAC columns demonstratedthat GAC treatment adequately removes the MIBremaining after PAC treatment (even when GAC isno longer removing TOC). Includes figures.

Product Details

Edition:

Vol. - No.

Published:

11/01/2008

Number of Pages:

17

File Size:

1 file , 5.4 MB