near 100% efficient utilization of oxygen.  In other words, the oxygen gas

entering the SDOX is delivered in nearly 100% dissolved form to the wastewater;

virtually no oxygen is lost to the atmosphere.

The energy from the high velocity side stream is utilized to mix and distribute the

oxygenated water throughout the system and will prevent settling of solids. The

side stream can also be delivered by a variety of injection options including

plume, flash mixing, and directed injection for site specific needs to either

minimize or maximize mixing. No additional energy must be added to mix or

distribute the oxygenated water.

The side-stream delivery technique also allows for efficient oxygenation of

odorous wastewater containing solids of any size. Solids up to 1/4 inch can be

tolerated. All internal components are non-fouling and stainless steel to prevent

corrosion.

SDOX technology has been shown to substantially reduce the emission of odorous

compounds from a variety of sources of wastewater, including animal waste

lagoons, food processing facilities and municipal wastewater treatment facilities.

Because the SDOX adds oxygen to wastewater at the molecular level, facultative

anaerobic microbes are rapidly able to shift metabolic processes toward aerobic

respiration, resulting in decreased production of reduced byproducts such as

hydrogen sulfide, methane, and other nuisance gasses.

Examples of how the SDOX can be used for odor control are:

•

Aeration of outdoor wastewater storage and treatment tanks;

•

Forced main and lift station supplemental oxygenation for odor control and

wastewater conditioning;

•

Surface aeration of facultative lagoons to prevent anaerobic odor release but allow

anaerobic processes at the bottom of the lagoon;

•

Precise control of DO in aerobic processing tanks to prevent anaerobic and odorous

conditions while minimizing costs by adding only the amount of oxygen needed to

maintain aerobic conditions;

•

Oxygenating difficult to mix and high particulate wastewater such as in sludge

digesters;

•

Prevention of anaerobic conditions in recreational ponds and lakes without requiring

fountains or surface aerators that can widely distribute odors.

The source of oxygen for the SDOX can be liquid oxygen, oxygen generators, or

compressed air. The SDOX is available in several sizes, providing delivery rates

up to 3000 lbs of DO per day.  SDOX units can be manually or automatically

operated, depending on user requirements. Fully automated SDOX units utilize a

PLC that can easily be integrated into existing plant control systems. Portable

SDOX units are available that can be operated in response to intermittent,

site-specific needs. Variable speed pump drives with high efficiency motors are

used so delivery rates can be easily varied from 40% to 100% full capacity

without compromising efficiency.