Skip to main content

Removal of Microconstituents by Adsorption focusing on the Separation of Powdered Activated Carbon

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial


Due to improved measurement methods microconstituents can be detected in the range of nanograms nowadays. These substances can be found ubiquitously in the aquatic environment. Source of these contaminants are industrial and communal waste water treatment plants (WWTP) and the agricultural sector. By adding 10-20 mg/l of powdered activated carbon (PAC) to the WWTP effluents microconstituents can be eliminated with a high efficiency. Due to small particle sizes in combination with high flow rates the subsequent and necessary PAC separation is a challenging task. The state of art is to use regular sedimentation tanks by adding coagulant and flocculation agents in combination with rapid sand filters. Besides being cost intensive, this method shows other disadvantages. The project team focused on testing five alternative test plants for the separation of PAC with different PAC products, coagulants and polymers. The results of a lamella separator, micro sieve, pile fabric cloth filter and dissolved air flotation have been compared with a regular sedimentation tank. The cloth filter clearly showed the best performance with retention rates of up to and above 95 %.

Document Type: Research Article


Publication date: 2012-01-01

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 These proceedings are not peer reviewed.

    A subscription to the Proceedings of the Water Environment Federation includes access to most papers presented at the annual WEF Technical Exhibition and Conference (WEFTEC) and other conferences held since 2000. Subscription access begins 12 months after the event and is valid for 12 months from month of purchase. A subscription to the Proceedings of the Water Environment Federation is included in Water Environment Federation (WEF) membership.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access. Access begins 12 months after the conference or event
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Learn about the many other WEF member benefits and join today
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed 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