If you are experiencing problems downloading PDF or HTML fulltext, our helpdesk recommend clearing your browser cache and trying again. If you need help in clearing your cache, please click here . Still need help? Email help@ingentaconnect.com

Hypochlorite Conversion Provides Improved Disinfection Safety and Reliability in Portland, OR

$20.50 plus tax (Refund Policy)

Buy Article:

Abstract:

The City of Portland's Columbia Boulevard Wastewater Treatment Plant used gaseous chlorine delivered in railcars to provide disinfection needs. Increasing plant loadings, staff safety training needs, risk management program administrative costs, and safety concerns led the City to proceed in 2003 with design and construction of a bulk hypochlorite system. Construction of the project began in March 2005, and was completed in two phases in July 2006. The project included: removal of the existing gas chlorine system while maintaining continuous disinfection, new bulk sodium hypochlorite storage, pumped transfer of hypochlorite from bulk storage to intermediate loop storage, two continuously pumped recirculating hypochlorite loops to disinfection points, new metering pumps at four disinfection points. The project significantly improved plant and community safety, provided redundancy against disruption of disinfection, and will meet buildout disinfection chemical demands with no further addition of plant chlorination system infrastructure at the plant.

Keywords: CONVERSION; DISINFECTION; GAS; HYPOCHLORITE; METERING; PERISTALTIC; PORTLAND; RECIRCULATION; STORAGE

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193317707X224068

Affiliations: 1: HDR Engineering, Inc., Portland, OR 97204-1134 2: Kennedy/Jenks Consultants, Portland, OR 97204-1134 3: Bureau of Environmental Services, City of Portland, Portland, OR 97204-1134

Publication date: July 1, 2007

More about this publication?
  • Water Practice™ publishes peer-reviewed articles and reports focusing on applied water studies. Topics include monitoring, facility operations and maintenance, management, policy, and other issues of interest and concern to water practitioners. The Journal publishes on a monthly to bi-monthly basis and is available online only.
  • Membership Information
  • WEFTEC Conference Information
  • ingentaconnect is not responsible for the content or availability of external websites

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect 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