Full Description

The City of Wilmington's Sweeney Water Treatment Plant (SWTP) treats a challenging water source (Cape Fear River) using a series of water treatment processes, including ozonation and biofiltration. The biofiltration process serves the dual purpose of meeting the filtration requirements for turbidity and production efficiency, and organics removal via adsorption and biodegradation. The biofilters are dual-media filters with granular activated carbon (GAC) over silica sand. GAC was chosen over anthracite because it provides an additional barrier against chemicals that cause taste-and-odor (T determine whether lignite GAC filters can be backwashed at a lower rate than bituminous GAC filters without compromising performance; and,collect long-term operational data on the performance of both GAC types for meeting the filtration requirements for turbidity removal and filter runtimes. Includes tables, figures.

Product Details

Edition: Vol. - No. Published: 11/01/2002 Number of Pages: 11File Size: 1 file , 340 KB