25 May 2005
2-126.96.36.199.2 System Regeneration. The strong acid cation system is regenerated with
sulfuric acid as described in paragraph 2-2.5.2.
2-188.8.131.52.3 Equipment Requirements. The acid exchanger tank must be made of, or
lined with, an acid-resistant material.
2-184.108.40.206.4 Decarbonator Use. Since blending the two split streams of finished water
also produces CO2, a decarbonator (degasifier or deaerator) is normally used to reduce
the CO2 concentration to 5 to 10 ppm or less. A typical split-stream process is shown in
Figure 2-6. Split-Stream Dealkalizer
Raw W ater
C arbon Dioxide
Treated W ater