Skip to main content

Potential Removal and Release of Nanomaterials from Wastewater Treatment Plants

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

Abstract:

We studied the occurrence, characterization, and removal of nano- and larger-sized titanium (Ti) in a full-scale wastewater treatment plant. Raw sewage contained 100 – 3,000 μg/L Ti, while tertiary effluent Ti concentrations ranged from about 10 to 100 μg/L. The Ti that was removed across the treatment train accumulated in plant solids. Finished plant biosolids, tertiary effluent, and commercial toothpaste were analyzed by scanning electron microscopy, and various forms of Ti solids were observed, including aggregates containing nanoscale primary particles of titanium oxides. To support field work, laboratory batch sorption experiments were conducted with various types of nanoparticles as sorbates and wastewater biomass as sorbent. Upon exposure to 400 mg/L total suspended solids of wastewater biomass, 97% of silver nanoparticles 88% of fullerenes, 39% of functionalized nanosilver, 23% of nanoscale titanium dioxide, and only 13% of fullerol nanoparticles were removed.

Keywords: Nanomaterials; fate and transport; release; sorption; wastewater

Document Type: Research Article

DOI: https://doi.org/10.2175/193864710798158094

Publication date: 2010-01-01

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 These proceedings are not peer reviewed.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