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Effect of glucose on nitrogen removal and microbial community in anammox-denitrification system
- Source :
- Bioresource Technology. 244:33-39
- Publication Year :
- 2017
- Publisher :
- Elsevier BV, 2017.
-
Abstract
- The effect of glucose on nitrogen removal and microbial communities in the anammox-denitrification systems was investigated. The optimal nitrogen removal could be achieved when the influent glucose concentration was 56.4mgL-1. The influent nitrite to ammonium ratio of 0.95-1.40 would not obviously affect the nitrogen removal due to the coexistence of anammox, denitrification and partial denitrification. The anammox activity was deteriorated with increasing glucose concentration. When the influent glucose concentration was increased to 374.9mgL-1, the average ammonium removal efficiency decreased from 97% to around 10% and anammox activity was seriously inhibited. The anammox activity quickly recovered with decreasing influent glucose and increasing influent nitrite. High-throughput sequencing analysis suggested that the predominant genus changed from Candidatus Kuenenia to Diaphorobacter with the addition of glucose and then changed to Hydrogenophaga with the decrease of glucose. It indicated that organics concentration had an effect on the microbial communities.
- Subjects :
- 0106 biological sciences
Environmental Engineering
Denitrification
Nitrogen
chemistry.chemical_element
Bioengineering
010501 environmental sciences
Biology
01 natural sciences
chemistry.chemical_compound
Ammonia
Bioreactors
010608 biotechnology
Ammonium Compounds
Hydrogenophaga
Ammonium
Nitrite
Waste Management and Disposal
0105 earth and related environmental sciences
Renewable Energy, Sustainability and the Environment
General Medicine
biology.organism_classification
Glucose
Biochemistry
chemistry
Microbial population biology
Anammox
Environmental chemistry
Subjects
Details
- ISSN :
- 09608524
- Volume :
- 244
- Database :
- OpenAIRE
- Journal :
- Bioresource Technology
- Accession number :
- edsair.doi.dedup.....982c7d48ee9094681120d6cb293f8689