Skip to main content

COST-EFFECTIVE CO-TREATMENT OF SPENT AIRPORT DEICING CHEMICALS AND MUNICIPAL WASTEWATER

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

Abstract:

Using primary treated municipal wastewater from the Gardermoen WWTP as a nutrient and buffer source, deicing fluid runoff from the Oslo airport was pre-treated in lab-scale and pilot-scale moving bed biofilm reactors (MBBR). At temperatures of 8-9 °C and organic loads up to 23 g total COD/m2/d in the biofilm reactors, subsequent coagulation with 280 to 340 mL PAX-21/m3 wastewater, followed by DAF separation, produced a pre-treated effluent suitable for discharge to the biological stage at the municipal WWTP. Substituting the primary treated wastewater with a nutrient and buffer solution was unsuccessful, and produced an unacceptable DAF effluent. Treatment at very low temperature (3.5 °C) also resulted in higher than desired effluent concentrations. The temperature in a new pretreatment plant should therefore be kept as high as possible. This means that the cold deicing fluid runoff should be mixed with as much of the warmer, primary treated wastewater as possible.

The municipal WWTP has a vacant DAF train that may be used for a new pre-treatment plant. The pilot-scale and lab-scale tests validated the design values originally used for a cost comparison of different alternatives, and thus confirmed that the optimum solution for a new pre-treatment plant for deicing fluid runoff will be a plant that is fully integrated with the municipal WWTP.

Document Type: Research Article

DOI: https://doi.org/10.2175/193864702784249097

Publication date: 2002-01-01

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 These proceedings are not peer reviewed.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
X
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