Skip to main content


The full text article is not available for purchase.

The publisher only permits individual articles to be downloaded by subscribers.

or click here to sign up for a free trial


Monitoring and controlling clarifier performance is critical for the successful operation of every wastewater treatment plant. The purpose of this presentation is to provide a brief overview of clarifier monitoring equipment and technologies most widely used in the practice today: from simple manual operation to complete automation of clarifier sludge collection and withdrawal, and control. The principal of operation, areas of application, advantages and disadvantages of optical, ultrasonic and nuclear analyzers for sludge concentration and density measurement are described. The benefits and applicability of sludge blanket level detectors are also discussed and advantages and disadvantages of manual and automated sludge blanket profiling and management are compared. General guidelines for selection of monitoring equipment will be presented as well.

Document Type: Research Article


Publication date: January 1, 2005

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Ingenta Connect is not responsible for the content or availability of external websites

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more