Skip to Main Content

BNR Process Monitoring and Control with Online Nitrogen Analyzers for Nitrogen Credit Exchange Program in Connecticut

By
Ryujiro Tsuchihashi
Ryujiro Tsuchihashi
Search for other works by this author on:
Brian Canterbury
Brian Canterbury
Search for other works by this author on:
JB Neethling
JB Neethling
Search for other works by this author on:
IWA Publishing
Volume
14
ISBN electronic:
9781780407692
Publication date:
August 2015

Long Island Sound was designated as an “estuary of national significance” in 1998, and the Long Island Sound Study (LISS) was directed to develop a comprehensive conservation and management plan (CCMP) for protecting and enhancing the water quality and health of the Long Island Sound. A reduction of 58.5% of the nitrogen load from point and non-point sources within 15 years (by 2014) as measured against the 1990 base load was adopted by the CCMP. To administer and enforce the nitrogen reduction target, the Connecticut Department of Environment Protection (CT DEP) in conjunction with the LISS and U.S. EPA developed a total maximum daily load (TMDL) in 2001. To achieve the TMDL goals, the CT DEP developed a nitrogen trading program among 79 wastewater treatment plants located throughout the state, and established the Nitrogen Credit Advisory Board (NCAB) and the Nitrogen Credit Exchange (NCE) Program in 2002.

In 2008, the NCAB proposed funding for the purchase of online or portable analyzers for DO and nitrogen, up to $40,000 for each wastewater treatment plant, to improve BNR process control. The total funding recommended by NCAB was $1,966,500. The study presented in this report summarized the use of online analyzers by water pollution control facilities (WPCFs) in Connecticut, and considerations for the use of online analyzers for automated process control are discussed. Case studies from the wastewater treatment facilities in Connecticut were provided, which sheds light on the practical approaches towards automated online process control for the improvement of BNR process performance.

This title belongs to WERF Research Report Series

ISBN: 9781780407692 (eBook)

BNR Process Monitoring and Control with Online Nitrogen Analyzers for Nitrogen Credit Exchange Program in Connecticut
By: Ryujiro Tsuchihashi, Brian Canterbury, JB Neethling
DOI: https://doi.org/10.2166/9781780407692
ISBN (electronic): 9781780407692
Publisher: IWA Publishing
Published: 2015

Download citation file:


×
This content is PDF only. Please click on the PDF icon to access.
Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal