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Pilot-scale results from the City of Boulder's 63rd Street Water Treatment Plant showed that while onlyweeks were required to achieve steady-state concentrations of attached biomass for a low-ozone dosedinfluent, acclimation with respect to MIB and geosmin removal at a 20 ng/L influent concentration was onthe order of months. For the first month of the study, percent removals for these compounds were lessthan 12%. By the fourth month, results for a 13 min empty bed contact time (EBCT) yielded up to 65%removal even though biomass values had not significantly increased. Results also indicated that shorterEBCTs (less than 8 min) often found in higher rate filters, may not be long enough for T

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Edition: Vol. - No. Published: 06/17/2005 Number of Pages: 20File Size: 1 file , 1.3 MB