Application Note: Dissolved Oxygen Measurement in a Wastewater Treatment Plant

Document ID

Document ID PR251

Version

Version 2.0

Status

Status Published

Published Date

Published Date 03/25/2019
Title
Application Note: Dissolved Oxygen Measurement in a Wastewater Treatment Plant
Overview
Monitoring dissolved oxygen is an important part of the activated sludge process. It assists in ensuring that there is sufficient dissolved oxygen in the process for the biological activity to take place, and helps to optimize energy usage through controlled air addition. In some cases, aeration accounts for between 2% and 3% of their annual energy costs.Maintaining a proper level of dissolved oxygen can only be accomplished by using an on-line instrument that will accurately and continuously measure the dissolved oxygen concentration at the various stages throughout the treatment process.

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