35 Ill. Adm. Code 370.1022
Ultraviolet Disinfection
Section 370
Section 370.1022 Ultraviolet
Disinfection
Because operating data and
experience with this process is not well established, expected performance of
the ultraviolet disinfection units shall be based upon either experience at
similar full scale installations or thoroughly documented prototype testing
with the particular wastewater. Use of this process should be limited to high
quality effluent having at least 65% ultraviolet radiation transmittance at 254
nanometers wave length and BOD and suspended solids concentrations no greater
than 30 mg/l at any time. Projects will be evaluated by the Agency on the
basis of the factors set out in Section 370.530(b).