Back to Search
Start Over
Nitrogen removal from iron oxide red wastewater via partial nitritation-Anammox based on two-stage zeolite biological aerated filter
- Source :
- Bioresource Technology. 279:17-24
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- Partial nitritation-anaerobic ammonium oxidation (PN-Anammox) was successfully applied for high-strength ammonium iron oxide red wastewater (IORW) treatment based on stable PN performance of zeolite-biological aerated filter (ZBAF). By separating Na2CO3 dosage avoid the high free ammonia (FA) inhibited nitritation, two-stage ZBAF was applied for achieving efficient PN with Na2CO3 as the alkalinity donor and saving about 40.0% of the alkalinity cost compared to NaHCO3. Moreover, Anammox was used for further nitrogen removal from IORW and stable total nitrogen (TN) removal was obtained at the influent NH 4 + -N concentration of 567 mg/L and TN removal efficiency kept above 70.0% after 100 days operation. High throughput sequencing-based approaches showed that Nitrosomoadaceae (AOB) and Kuenenia was dominance in two-stage ZBAF and Anammox samples respectively, while Nitrospire and Nitrobacter (NOB) undetected. The combined process should have advantages for similar high-strength ammonium wastewater treatment.
- Subjects :
- 0106 biological sciences
Environmental Engineering
Nitrogen
Alkalinity
Iron oxide
Bioengineering
Wastewater
010501 environmental sciences
Ferric Compounds
01 natural sciences
Ammonia
chemistry.chemical_compound
Bioreactors
010608 biotechnology
Ammonium Compounds
Ammonium
Waste Management and Disposal
0105 earth and related environmental sciences
biology
Renewable Energy, Sustainability and the Environment
Chemistry
Nitrobacter
General Medicine
biology.organism_classification
Planctomycetales
Anammox
Denitrification
Zeolites
Sewage treatment
Oxidation-Reduction
Filtration
Nuclear chemistry
Subjects
Details
- ISSN :
- 09608524
- Volume :
- 279
- Database :
- OpenAIRE
- Journal :
- Bioresource Technology
- Accession number :
- edsair.doi.dedup.....771d23ab4dfed961afccc2cbe70d6e91