Odor And Corrosion Control

Hydrogen Peroxide typically controls odors and corrosion at primary wastewater treatment plant headworks by direct oxidation of hydrogen sulfide (H₂S) within the wastewater. In the direct oxidation mode, H₂O₂ is applied to the wastewater 5-30 minutes prior to the point where the odors are being released, generally as the wastewater line enters the plant boundary.

The efficiency of hydrogen peroxide treatment depends upon the available reaction time, the level of iron in the wastewater (reaction catalyst), wastewater pH and temperature, and the initial and target levels of H₂S odor. Under optimal conditions, effective dose ratios are 1.2 – 1.5 parts H₂O₂ per part dissolved sulfide, and can be reliably estimated through beaker tests.