@inproceedings{8b4001672df94c92898dcd0dc1e9e079,
title = "Start-up, optimization, and performance testing of a 77 MGD integrated fixed film activated sludge (IFAS) process to meet a 5 mg/L nitrogen limit",
abstract = "The Narragansett Bay Commission (NBC) has recently completed converting their aeration tanks to ten parallel integrated fixed film activated sludge (IFAS) reactors at the 291 MLD (77 MGD) Field{\textquoteright}s Point Wastewater Treatment Facility (FPWWTF) to meet a future total nitrogen permit limit of 5 mg-N/L. Performance testing conducted during April and May of 2013 demonstrated that the IFAS process was able to meet a total inorganic nitrogen (TIN) limit of 3 mg-N/L and a 1 mg-N/L ammonia-nitrogen limit as stipulated by the process performance guarantee. Start-up and testing of the IFAS process revealed that a bulk-phase dissolved oxygen concentration in the IFAS cell of 4.5 mg/L or greater was required to maintain an ammonia-nitrogen concentration less than 1 mg-N/L in the secondary effluent at the FPWWTF. Performance testing confirmed that process conversion to a four-stage Bardenpho process with an aerobic IFAS zone was capable of meeting treatment objectives: 5 mg-TN/L, 10 mg-BOD5/L, and 30 mg-TSS/L on a monthly average basis.",
keywords = "Design, Enhanced nitrogen removal, Four-stage Bardenpho, IFAS, Integrated fixed-film activated sludge, Operational insights, Performance testing, Start-up",
author = "David Michelsen and David Peterson and Michael Wilson and Boltz, {Joshua P.} and Theresa Cote and Thomas Brueckner and Paul Nordstrom",
note = "Publisher Copyright: Copyright {\textcopyright}2013 Water Environment Federation. All Rights Reserved.; 86th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2013 ; Conference date: 05-10-2013 Through 09-10-2013",
year = "2013",
doi = "10.2175/193864713813685674",
language = "English (US)",
series = "86th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2013",
publisher = "Water Environment Federation",
pages = "3861--3885",
booktitle = "86th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2013",
address = "United States",
}