Skip to main content


Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial


The City of Henderson (NV) Water Reclamation Facility recently switched from chlorine gas to liquid sodium hypochlorite based solution for disinfection and in-plant use to eliminate the safety hazards associated with gas storage. The new hypochlorite system maintained the existing production of a chlorine solution to feed multiple application points throughout the plant, making the conversion straightforward for the operators. The early success of the conversion was tainted due to calcification that was occurring in the solution lines. Several alternatives were considered to reduce the calcification in the hypochlorite feed system. Including pH adjustment, dilution to lower pH of solution, softening or R.O. treatment of dilution water, and conversion to a “neat” feed system. Pilot testing was performed on an acid feed system with this alternative selected for implementation. pH adjustment was straight forward to implement, low cost, and with minimal maintenance required. It was found that though a final solution pH of 6 produced a solution free of precipitates, operation at a pH of 7.5 would not result in the deposition of carbonate precipitate, thus minimizing chemical costs.

Document Type: Research Article


Publication date: 2000-01-01

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 These proceedings are not peer reviewed.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