Skip to main content

Pretreatment of Electronics Wastewater for Reuse: Removal of Calcium Using Controlled Hydrodynamic Cavitation

Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial

Controlled Hydrodynamic Cavitation (CHC) was investigated to remove high calcium levels from the effluent of the fluoride removal process used at a semiconductor manufacturing company. To confirm the cavitation effect, the current calcium removal process was operated with and without the use of the CHC system. The calcium removal efficiency increased from 63.5% to 91.7% when the CHC unit was operating. The change of the calcite shape from plate to a spherical form by application of CHC was also observed. The spherical shape can effectively enhance calcium removal because of the larger specific surface area for adsorption of newly produced colloidal calcites. The conversion of the calcite shape to spherical would also prevent or limit formation of calcite scale on the inner wall of pipes and reactors within the treatment system.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Keywords: calcification; calcium removal; electronics wastewater; hydrodynamic cavitation; seed crystallization

Document Type: Research Article

Publication date: 2011-01-01

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 These proceedings are not peer reviewed.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