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Proven Techniques For Measuring Oxygen Transfer In Updated Standard
October 3, 2018

The American Society of Civil Engineers (ASCE) has recently announced that Standard Guidelines for In-Process Oxygen Transfer Testing (ASCE/EWRI 18-18) describes several proven techniques for measuring oxygen transfer under process conditions. This new edition, which updates and replaces the previous edition of ASCE 18, provides current information on nonsteady-state, off-gas, and inert gas tracer methods, as well as a brief comparison among methods. The methods presented are considered to be well developed and are offered as standard guidelines that provide satisfactory precision for a wide range of aeration processes in suspended-growth biological systems.

Since the original publication in 1996, the procedure that has gained the widest acceptance and use is the off-gas method. These procedures may also be applicable to testing oxygen transfer devices in lakes and streams; however, they are not applicable to fixed-film reactors.

This standard provides proven techniques for use by engineers, owners, and manufacturers for measuring oxygen transfer and evaluating the performance of aeration devices under process conditions.

To purchase online visit the ASCE Bookstore.

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