SDOXTM Demonstration Performance:

SDOXTM was the only source of aeration for raising the DO of the effluent during the 6 days of continuous operation.



The SDOXTM increased the DO of the effluent above the NPDES permitted concentration of 10 mg  /L.



The average DO concentration increase resulting from SDOXTM was 3.2 mg/L.



The SDOXTM used an average of 505 lb O2 per day.



Of the oxygen used, 95% was measured as added DO. This means the SDOXTM delivered nearly all of the



oxygen purchased as DO.

 The SDOXTM drew an average of 13.6 HP during the test.

 The SDOXTM had an average efficiency of 1.5 lb O2 per HP-hr.

Rogers Pollution Control Facility Demonstration 



The portable SDOXTM system

shown oxygenated the post-

treatment effluent of the

Rogers  Pollution  Control

Facility over three days.

Results of the demonstration indicate significant cost savings using the SDOXTM. The SDOXTM increased the

effluent DO nearly 50% above the existing aeration system. The SDOXTM oxygen delivery efficiency was nearly

equal to the existing system while using 79% less power than the existing system.

Table 2: Side-by-side Comparison of the SDOXTM with the Existing Rogers Post-Treatment Aeration System.

DO Increase

Oxygen Consumed

Power Consumed

Aeration Efficiency

(mg/L)

(lb O2 / day)

(HP)

(lb DO / HP-hr)

4.5

182

32

0.25

Existing System

6.7

268

6.7

1.5

SDOXTM

Existing Post-Treatment Aeration System Setup and Performance:

 Two blower/diffuser units and a supplemental oxygen feed system provide post-treatment aeration.

 The existing post-treatment aeration system increases the effluent DO by an average of 4.5 mg/L.

 The blower/diffuser units draw 10 HP each, and the supplemental oxygen feed system draws 12 HP and uses

182 lb O2 per day.