Journal
BIORESOURCE TECHNOLOGY
Volume 99, Issue 17, Pages 8273-8279Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2008.03.006
Keywords
anammox; Nitrosomonas eutropha; dissolved oxygen; bacteria composition; biological rotating contactor
Ask authors/readers for more resources
In this study, the anammox consortium was found to adapt to the wastewater containing dissolved oxygen (DO), as the DO was gr\adually increased. Batch tests indicated the maximum aerobic ammonium oxidizing activity of the consortium was 1.38 mmolNH(4)(+) -N(g VSS)(-1) day(-1), which played key roles in the oxygen consumption process; the maximum anaerobic ammonium oxidizing activity was slightly decreased after long-term oxygen exposure, but only from 21.23 mmolNH(4)(+)-N(g VSS)(-1) day(-1) to 20.23 mmolNH(4)(+)-N(g VSS)(-1) day(-1). Microbiological community analysis identified two strains similar to Nitrosomonas eutropha were responsible for oxygen consumption. which were able to exist in the autotrophic anaerobic condition for long periods and protect anammox bacteria Planctomycetales from the influence of oxygen. Microbiological composition analysis showed Nitrosomonas and Planctomycetales approximately accounted for 10% and 70% of the bacteria, respectively. The possibility of cultivation anammox consortium in presence of DO will lead to substantial savings of energy and resource in the industrial application. (c) 2008 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available