Services

Direct Injection

clarity resources group

Our expertise continues beyond OST® in that we specialize in all forms of aeration and oxygenation. When it comes to oxygenating water bodies that are designed to preserve thermal stratification, there are two distinct technologies; direct injection and saturation technology. Both of these strategies have been applied to all shapes and sizes of lakes and reservoirs, with the main difference between their application being the depth of the water body.

Direct injection, often called Line Diffuser Oxygenation, is more commonly deployed in water bodies greater than 45 feet deep. Direct injection takes advantage of the natural hydrostatic pressure to dissolve the small oxygen gas bubbles in the hypolimnion (deeper waters) before they reach the thermocline. Details about saturation technology, like OST® for shallower applications, can be found on the OST® page.

Visit the OST® Page

How it Works

A Quick Overview on how direct injection works

Direct gas sparging (diffuser) systems use a weighted supply pipe to carry the gas to an engineered structure, located on or near the bottom, to release small bubbles directly to the water column. Diffuser systems can use compressed air or pure oxygen gas. Compressed air systems are generally used to destratify the water column. Pure oxygen systems are used to increase oxygen levels in the bottom waters while preserving thermal stratification.

Clarity uses a validated plume model to identify gas transfer efficiency, plume dynamics, and circulation characteristics coupled as well as a flow model to engineer uniform gas distribution along the entire length of the diffuser system.

View Results and Data Here