The inhibitory effects of reject water on nitrifying populations grown at different biofilm thickness

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Standard

The inhibitory effects of reject water on nitrifying populations grown at different biofilm thickness. / Piculell, Maria; Suarez, Carolina; Li, Chunyan; Christensson, Magnus; Persson, Frank; Wagner, Michael; Hermansson, Malte; Jönsson, Karin; Welander, Thomas.

I: Water Research, Vol. 104, 01.11.2016, s. 292-302.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Harvard

Piculell, M, Suarez, C, Li, C, Christensson, M, Persson, F, Wagner, M, Hermansson, M, Jönsson, K & Welander, T 2016, 'The inhibitory effects of reject water on nitrifying populations grown at different biofilm thickness', Water Research, vol. 104, s. 292-302. https://doi.org/10.1016/j.watres.2016.08.027

APA

Piculell, M., Suarez, C., Li, C., Christensson, M., Persson, F., Wagner, M., ... Welander, T. (2016). The inhibitory effects of reject water on nitrifying populations grown at different biofilm thickness. Water Research, 104, 292-302. https://doi.org/10.1016/j.watres.2016.08.027

CBE

Piculell M, Suarez C, Li C, Christensson M, Persson F, Wagner M, Hermansson M, Jönsson K, Welander T. 2016. The inhibitory effects of reject water on nitrifying populations grown at different biofilm thickness. Water Research. 104:292-302. https://doi.org/10.1016/j.watres.2016.08.027

MLA

Vancouver

Author

Piculell, Maria ; Suarez, Carolina ; Li, Chunyan ; Christensson, Magnus ; Persson, Frank ; Wagner, Michael ; Hermansson, Malte ; Jönsson, Karin ; Welander, Thomas. / The inhibitory effects of reject water on nitrifying populations grown at different biofilm thickness. I: Water Research. 2016 ; Vol. 104. s. 292-302.

RIS

TY - JOUR

T1 - The inhibitory effects of reject water on nitrifying populations grown at different biofilm thickness

AU - Piculell, Maria

AU - Suarez, Carolina

AU - Li, Chunyan

AU - Christensson, Magnus

AU - Persson, Frank

AU - Wagner, Michael

AU - Hermansson, Malte

AU - Jönsson, Karin

AU - Welander, Thomas

PY - 2016/11/1

Y1 - 2016/11/1

N2 - Suppression of nitrite oxidizing bacteria (NOB) is of vital importance to achieve successful, energy efficient, mainstream anammox processes for wastewater treatment. In this study, biofilm carriers from a fully nitrifying MBBR system, fed with mainstream wastewater, were temporarily exposed to reject water from sludge dewatering, to evaluate this as a possible strategy to inhibit NOB and achieve nitrite production under realistic conditions. Two different carrier types were compared, in which biofilm thickness was maintained at approximately 400 and 50 μm, respectively, and reject treatment was tested at different exposure time and loading rates. Reject exposure almost always resulted in an increased nitrite production in the thinner biofilm, and overall, nitrifiers growing in the thin biofilm were more sensitive than those grown in the thicker biofilm. The effect from reject exposure remained in the systems for four days after returning to mainstream operation, with nitrite production gradually increasing for three days. Increased concentrations of free ammonia correlated with reject exposure and may be the cause of inhibition, although other factors cannot be excluded.

AB - Suppression of nitrite oxidizing bacteria (NOB) is of vital importance to achieve successful, energy efficient, mainstream anammox processes for wastewater treatment. In this study, biofilm carriers from a fully nitrifying MBBR system, fed with mainstream wastewater, were temporarily exposed to reject water from sludge dewatering, to evaluate this as a possible strategy to inhibit NOB and achieve nitrite production under realistic conditions. Two different carrier types were compared, in which biofilm thickness was maintained at approximately 400 and 50 μm, respectively, and reject treatment was tested at different exposure time and loading rates. Reject exposure almost always resulted in an increased nitrite production in the thinner biofilm, and overall, nitrifiers growing in the thin biofilm were more sensitive than those grown in the thicker biofilm. The effect from reject exposure remained in the systems for four days after returning to mainstream operation, with nitrite production gradually increasing for three days. Increased concentrations of free ammonia correlated with reject exposure and may be the cause of inhibition, although other factors cannot be excluded.

KW - Biofilm thickness

KW - FISH-CLSM

KW - MBBR

KW - Nitritation-anammox

KW - NOB inhibition

KW - Optical coherence tomography

UR - http://www.scopus.com/inward/record.url?scp=84983082113&partnerID=8YFLogxK

U2 - 10.1016/j.watres.2016.08.027

DO - 10.1016/j.watres.2016.08.027

M3 - Article

VL - 104

SP - 292

EP - 302

JO - Water Research

T2 - Water Research

JF - Water Research

SN - 1879-2448

ER -