EurekaMag.com logo
+ Site Statistics
References:
53,869,633
Abstracts:
29,686,251
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on LinkedInFollow on LinkedIn

+ Translate

Combining partial nitritation and heterotrophic denitritation for the treatment of landfill leachate previous to an anammox reactor



Combining partial nitritation and heterotrophic denitritation for the treatment of landfill leachate previous to an anammox reactor



Water Science and Technology 61(8): 1949-1955



Landfill leachate can present extremely elevated concentrations of ammonium (up to 6,000 mg N-NH(4) (+) L(-1)) and a low biodegradable organic matter fraction. As an alternative to conventional systems, this wastewater can be treated on a more sustainable way by a fully autotrophic partial nitritation-anammox system. The operation of the first step of this system, the partial nitritation, is critical since the elevated concentrations of ammonium and nitrite in the reactor can severely inhibit ammonium oxidizing bacteria (AOB) activity. In this way, the inclusion of anoxic phases during the feeding events to promote the denitrification via nitrite can be a good option for upgrading the process performance and increasing the stability of the system. This paper deals with the evaluation of an anoxic-aerobic step-feed strategy for the operation of a partial nitritation SBR. Results of this study have revealed a decrease on the total nitrogen inside the reactor of more than 200 mg N L(-1) without prejudice on the partial nitritation process. Furthermore, this study has also allowed detecting an AOB activity reduction at the end of aerobic phases due to bicarbonate limitation and/or free nitrous acid inhibition.

(PDF emailed within 0-6 h: $19.90)

Accession: 052183389

Download citation: RISBibTeXText

PMID: 20388991

DOI: 10.2166/wst.2010.968



Related references

Landfill Leachate Treatment Over Nitritation/Denitritation in an Activated Sludge Sequencing Batch Reactor. APCBEE Procedia 5: 163-168, 2013

Operational strategy for a partial nitritation-sequencing batch reactor treating urban landfill leachate to achieve a stable influent for an anammox reactor. Journal of Chemical Technology and Biotechnology 83(3): 365-371, 2008

Application of a partial nitritation and anammox system for the old landfill leachate treatment. International Biodeterioration & Biodegradation 95: 144-150, 2014

Treatment of Old Landfill Leachate via a Denitrification-Partial Nitritation-ANAMMOX Process. Huan Jing Ke Xue= Huanjing Kexue 39(8): 3782-3788, 2018

Nitritation-denitritation in landfill leachate with glycerine as a carbon source. Bioresource Technology 142: 297-303, 2014

Continuous-flow combined process of nitritation and ANAMMOX for treatment of landfill leachate. Bioresource Technology 214: 514-519, 2016

Organic removal by denitritation and methanogenesis and nitrogen removal by nitritation from landfill leachate. Water Research 42(4-5): 883-892, 2007

Control factors of partial nitritation for landfill leachate treatment. Journal of Environmental Sciences 19(5): 523-529, 2007

Combination of upflow anaerobic sludge blanket (UASB) reactor and partial nitritation/anammox moving bed biofilm reactor (MBBR) for municipal wastewater treatment. Bioresource Technology 180: 144-153, 2016

A coupled system of half-nitritation and ANAMMOX for mature landfill leachate nitrogen removal. Environmental Technology (): 1-9, 2016

A novel single-stage process integrating simultaneous COD oxidation, partial nitritation-denitritation and anammox (SCONDA) for treating ammonia-rich organic wastewater. Bioresource Technology 254: 50-55, 2018

Effect of heterotrophic growth on nitritation/anammox in a single sequencing batch reactor. Water Science and Technology 58(2): 277-284, 2008

High rate nitrogen removal by ANAMMOX internal circulation reactor (IC) for old landfill leachate treatment. Bioresource Technology 234: 281-288, 2017

Performance and kinetic process analysis of an Anammox reactor in view of application for landfill leachate treatment. Environmental Technology 35(9-12): 1226-1233, 2014

Partial nitritation for subsequent Anammox to treat high-ammonium leachate. Environmental Technology 34(5-8): 1063-1068, 2013