"The Instrumentation Testing Association (ITA) is a unique resource,
dedicated solely to the testing and validation of wastewater monitoring
instrumentation. Weyerhaeuser has been a sponsoring member of ITA since 1996.
ITA performs field testing of wastewater monitoring instrumentation, maintains
an instrument specification database, and conducts instrument performance and
maintenance testing under field conditions.
No other organization does this type of practical point-of-use
testing for wastewater instrumentation. The resulting information offers an
unbiased assessment of instrument operation, accuracy, and maintenance. ITA
information has been helpful for previous mill questions about on-line
measurement of pH, dissolved oxygen, flow, oxidation-reduction potential,
ammonia, phosphorous, and BOD/COD."
Phil Pagoria P.E., Ph.D Wastewater Treatment Engineer
Weyerhaeuser NR Environment, Health, Safety, and Sustainability, Highland Park,
teamed with member utilities from the Town of Quispamsis, the City of Winnipeg,
the City and County of San Francisco and
Krishna Pagilla of Illinois Institute of Technology to demonstrate a
long-term correlation of the 5-day biochemical
oxygen demand, BOD5 and to the chemical
oxygen demand, COD to Total Organic Carbon, TOC.
ITAs research team has developed an international investigation of five
treatment facilities of various flows, treatment technologies and climates to
correlate BOD5 to TOC and BOD5
to COD and CBOD5 to TOC.
This TOC correlation study identifies long-term practices of utilizing TOC as a
process control parameter-specifically to monitor the removal of organics in a
wastewater treatment process and the utilization of carbon balances. This
study also demonstrates a statistically significant BOD5:TOC
correlation to allow a TOC limit to be substituted for a BOD5
limit in permits. Additionally, an implementation protocol is also
provided to help guide wastewater treatment plants in developing a site-specific
ITA Test Reports Now Available by Instant Download
download electronic copies of ITAs Publications in Adobe Acrobat format for
ease in viewing, searching and printing at ITA ePubs
Test Drive ITAs New Instrument Specification Database!
ITAs new database is designed to assist the end-user
in making direct comparisons of instrument features, applications, operating
parameters, maintenance requirements, reported accuracy and costs. Each instrument is listed with more than 40 specification
data fields including cost, general technical specifications, operations &
maintenance requirements, electrical components, and installation and safety
considerations. Now for a limited time, ITA is offering a free test
a Free Test Drive of ITAs Instrument Specification Database
Online Chlorination and Dechlorination
Analyzers This test report presents results of three
online total chlorine residual analyzers and two dechlorination analyzers
field-tested at the Sacramento Regional Wastewater Treatment Plant, in
Northern California. Online analyzers used to measure residual chlorine and
sulfite concentrations used for control and monitoring of the wastewater
treatment plant's effluent disinfection and dechlorination processes were
tested in real-time conditions over a period of three months. Instrument
technologies evaluated include amperometric and gas detection and were
manufactured by ATI, Severn Trent and Wallace & Tiernan.
Order your copy of the newest CL2 and SO2 test report now.
ITA Completes Online Nitrate Analyzer Test Report As part of a Water Environment Research Foundation (WERF) project, ITA
field-tested five online nitrate analyzers utilizing in-situ ultraviolet (UV)
technologies. ITA completed the final report in June 2006 which includes
examination of global nitrogen control strategy practices, results of a
wastewater plant nitrogen monitoring and control survey, case study
investigations and comparative field-test results of online nitrate analyzers.
The District of Columbia Water and Sewer Authority (DC WASA) provided in-kind
support and services for the research project field-test which was conducted at
Blue Plains Advanced Wastewater Treatment Plant in Washington, D.C. For more
information about this project (WERF Project 03-CTS-8) email
or contact us. To view a summary of the report
click the following links: