Simultaneous organic matter removal and nitrification of an inert self-supporting immersed media to upgrade aerated lagoons-Reference-Cited by-同舟云学术

Simultaneous organic matter removal and nitrification of an inert self-supporting immersed media to upgrade aerated lagoons

Published:2017-10-10 Issue:1 Volume:77 Page:51-59
ISSN:0273-1223
Container-title:Water Science and Technology
language:en
Short-container-title:

Author:

Boutet E.¹,Baillargeon S.¹,Patry B.²,Lessard P.²

Affiliation:

1. Bionest Technologies Inc., 55, 12e Rue, Shawinigan, QC, Canada, G9T 5K7

2. Département de génie civil et de génie des eaux, Pavillon Adrien-Pouliot, Université Laval, 1065 av. de la Médecine, Québec, QC, CanadaG1V 0A6

Abstract

Abstract A pilot study was performed to evaluate the potential of an inert self-supported immersed fixed film media to upgrade aerated lagoons. Simultaneous organic matter removal and nitrification was assessed under different loading rates and temperatures (near 0 °C) using 12 laboratory-scale reactors operated in parallel. Test results showed that both the temperature and the load have an influence on organic matter effluent concentrations. Effluent quality seemed related to the observed biofilm thickness. Thicker biofilm is believed to have contributed to biomass detachment and increased particulate organic matter concentrations in the effluent. Simultaneous organic removal and nitrification was obtained at loads above 5 g CBOD5/m2·d. The highest nitrification rate at 0.4 °C was obtained for the smallest load, which showed a nitrification limitation close to freezing point.

Publisher

IWA Publishing

Subject

Water Science and Technology,Environmental Engineering

Link

http://iwaponline.com/wst/article-pdf/77/1/51/211409/wst077010051.pdf

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