“In their paper on low-SRT, low-temperature activated sludge, Figdore et al. were able to achieve stable nitrification using bioaugmentation with a nitrifying granular sludge,” WER Editor-in-Chief Tim Ellis said. “Once bioaugmentation was interrupted, the mainstream nitrification stopped. During bioaugmentation effluent ammonia levels were consistently below 1 mg/L.”

Selected WER articles such as this one are available free to the public on a monthly basis through an open access program. In addition, authors can pay a fee to make their accepted articles open access. Click here to download “Bioaugmentation with Nitrifying Granules in Low-SRT Flocculent Activated Sludge at Low Temperature” by Bryce A. Figdore; Mari-Karoliina H.Winkler; and David H. Stensel.

Published by the Water Environment Federation since 1928, WER is a popular professional journal that features peer-reviewed research papers and research notes, as well as state-of-the-art and critical reviews on original, fundamental, and applied research in all scientific and technical areas related to water quality, pollution control, and management. WER is available in both print and online formats and receives approximately 400 new research submissions each year.