35 Ill. Adm. Code 604.425
Other Methods of Aeration
Section 604.425 Other Methods of Aeration
Other methods of aeration may be used if applicable to the
treatment needs. The treatment processes must be designed to meet the
particular needs of the water to be treated and must be approved by the
Agency. Such methods include:
a) spraying;
b) diffused air;
c) cascades;
d) mechanical
aeration; or
e) natural
draft aeration.