AWWA JAW36205

Nearly 1,000 point-of-entry granular activated carbon (GAC) filters are efficiently removing ethylene dibromide (EDB) from contaminated groundwater throughout Florida. This article discusses the design, performance, and operational problems of the filters and assesses the possibility of extending the interval between GAC replacement from the current six months. Few breakthroughs have occurred in these filters, and most were caused by desorption during periods of sharp decreases in well water EDB concentrations. Because GAC loading data from the literature described the program data very well, they were used in conjunction with the equilibrium column model to predict the performance of the program's filters for different GAC replacement periods. Based on the most conservative estimates, maintenance for 50 percent of the filters could be extended to every nine months. Includes 31 references, tables, figures.

Product Details

Edition:

Vol. 86 - No. 8

Published:

08/01/1994

Number of Pages:

13

File Size:

1 file , 23 MB