Disinfection Treatment
Disinfection treatment selection
focuses on selection of an alternative for an advanced oxidation process (AOP). This is a critical barrier as
it forms a hydroxyl radical that can eliminate organic compounds, pathogens and
bacteria in the water. In addition, CJE will include
a UV disinfection process and a chlorine residual provided through chlorine gas
due to competition requirements along with requirements from the Arizona
Administration Code R18-4501 to R18-4-540.
AOP Alternatives
The AOP alternatives that were evaluated were ozone and UV (MiPRO AOP), ozone and hydrogen peroxide (Capital Controls
Ozone Generation System), and hydrogen peroxide and UV (ADVANOX AOP).
Figure 1: Ozone and UV (MiPRO AOP)
Figure 2: Ozone and Hydrogen Peroxide
(Capital Controls Ozone Generation System)
Figure 3: Hydrogen Peroxide and UV (ADVANOX AOP)
Disinfection Scoring Criteria
Each disinfection alternative was given a score of one to three. Three was the highest score and one was the lowest score. These scores were based on how well each alternative met the criteria. The following table provides how each criteria was scored with the reasoning. It also provides the reasoning of the weighting for each criteria.
Table 1: Advanced Oxidation Process Scoring and Weighting
Disinfection Decision Matrix
Using the scoring criteria for the disinfection treatment, the decision matrix for AOP was created to find the most suitable alternative for the treatment train. The decision matrix below is a simplified decision matrix, you can find the complete matrix in the final report, Appendix Y: Scoring, Weighting, and Decision Matrix for Advanced Oxidation Process.
Table 2: Simplified Decision Matrix for AOP
