AWWA MTC53853

This paper reviews the results of a pilot study conducted for theCity of Racine, Wisconsin that investigated the performance of a hybrid membrane-adsorption process using powdered activated carbon and submerged-style ultrafiltration membranes (PAC-UF) to address two major treatment goals: upgraded disinfection; and, taste and odor (T&O) removal. In particular, the study focuses on the removal of 2-methylisoborneol (2-MIB), which is a common T&O causing compound for Racine and many other water utilities. The pilot study investigated the effects of backwash frequency, PAC dose, PAC dosing method (continuous vs. pulse), and feedwater pretreatment in an attempt to better optimize the adsorption process and demonstrate the performance of the membrane unit with various PAC-UF operating conditions. The pilot information was used to determine appropriate design criteria and subsequently provide a budgetary cost estimate for adding a PAC-UF process to the 60 million gallons per day water plant in Racine. The estimated capital cost is $33 million. The estimated annual operating cost of the PAC-UF system is$1.1 million. Includes 9 references, tables, figure.

Product Details

Edition:

Vol. - No.

Published:

05/01/2001

Number of Pages:

10

File Size:

1 file , 150 KB