Skip to main content

Evaluation of Dental Clinic Mercury Contributions to Wastewater Treatment Plant Biosolids

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

Abstract:

A study was conducted to quantify the impact of dental wastewater discharges on Metropolitan Council Environmental Services (MCES) wastewater treatment plant (WWTP) mercury loadings. This was accomplished by an intensive biosolids sampling and analysis program in two Minnesota communities, Hastings and Cottage Grove. The sampling was conducted at the community WWTPs before and during the time period amalgam removal equipment was operated at the dental clinics upstream of each WWTP.

During the study dental amalgam removal equipment was installed in the communities' dental clinics for at least a three-month period for data collection. The dental amalgam removal equipment performed as anticipated in the dental clinics. No significant problems were encountered with the amalgam removal equipment or the associated dental clinic vacuum systems. During the study, a 44 % reduction in mercury loading to the Hastings WWTP was measured while the amalgam removal equipment was installed in the Hastings dental clinics. The corresponding mercury reduction for Cottage Grove was found to be 29%.

Document Type: Research Article

DOI: https://doi.org/10.2175/193864702784163308

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 These proceedings are not peer reviewed.

    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
  • 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