AWWA ACE54330

Northern Kentucky Water District (District) of Fort Thomas, Kentucky owns and operates two surface water treatment plants of 44 million gallons per day (mgd) and 10 mgd capacity that draw from the Ohio and Licking Rivers, respectively. The District uses free chlorine for disinfection and adds chlorine at both treatment plants and at four booster pumping stations in the distribution system. In 1998, the District converted the smaller treatment plant and the four booster chlorine stations from chlorine gas to sodium hypochlorite. In 2000, the District converted the large treatment plant from gas to sodium hypochlorite.The District has been pleased with the conversion because it has increased safety for both the staff members and the public. There have been several difficulties in the conversion including vapor locking in the feed systems and instability of the sodium hypochlorite solution. The District has several suggestions for utilities that wish to make this conversion including the installation of pH meters to indicate solution stability and establishment of a regular maintenance program for scale removal and leak repair.

Product Details

Edition:

Vol. - No.

Published:

06/01/2001

Number of Pages:

6

File Size:

1 file , 220 KB