Taste Test

摘要

Taste and odor (T&O) problems remain an issue across much of the nation where water plants draw from lakes and other surface sources. The phenomenon can be expensive to suppress with chemicals and, even then, is still hard to maintain. During the hot and dusty summers a few years back in Waco, Texas, many residents were reluctant to slake their thirst with the city's water. However, that has changed since a dissolved air flotation (DAF) system entered service two years ago to purge the water utility's recurring T&O problem. The water utility serving Waco has two plants and 67,492 connections along its 900 miles of mains. The city draws raw water from the 8,465-acre Lake Waco, whose watershed directly contributes nutrient loadings that further aggravate the strong T&O in the utility's finished water.