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Nitrogen removal ra...
Nitrogen removal rates at a technical-scale pilot plant with the one-stage partial nitritation/Anammox process.
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- Cema, Grzegorz (författare)
- KTH,Mark- och vattenteknik
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- Szatkowska, Beata (författare)
- KTH,Mark- och vattenteknik
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- Płaza, Elzbieta (författare)
- KTH,Mark- och vattenteknik
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- Trela, Jozef (författare)
- KTH,Mark- och vattenteknik
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Surmacz-Górska, Joanna (författare)
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(creator_code:org_t)
- IWA Publishing, 2006
- 2006
- Engelska.
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Ingår i: Water Science and Technology. - : IWA Publishing. - 0273-1223 .- 1996-9732. ; 54:8, s. 209-217
- Relaterad länk:
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http://www.iwaponlin...
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visa fler...
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https://urn.kb.se/re...
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https://doi.org/10.2...
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Abstract
Ämnesord
Stäng
- Traditional nitrification/denitrification is not suitable for nitrogen removal when wastewater contains high concentrations of ammonium nitrogen and low concentrations of biodegradable carbon. Recently, a deammonification process was developed and proposed as a new technology for treatment of such streams. This process relies on a stable interaction between aerobic bacteria Nitrosomonas, that accomplish partial nitritation and anaerobic bacteria Planctomycetales, which conduct the Anammox reaction. Simultaneous performance of these two processes can lead to a complete autotrophic nitrogen removal in one single reactor. The experiments where nitrogen was removed in one reactor were performed at a technical-scale moving-bed pilot plant, filled with Kaldnes rings and supplied with supernatant after dewatering of digested sludge. It was found that a nitrogen removal rate obtained at the pilot plant was 1.9 g m(-2) d(-1). Parallel to the pilot plant run, a series of batch tests were carried out under anoxic and aerobic conditions. Within the batch tests, where the pilot plant's conditions were simulated, removal rates reached up to 3g N m(-2) d(-1). Moreover, the batch tests with inhibition of Nitrosomonas showed that only the Anammox bacteria (not anoxic removal by Nitrosomonas) are responsible for nitrogen removal.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Vattenteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Water Engineering (hsv//eng)
Nyckelord
- Anammox; CANON; deammonification; digested supernatant; nitrogen removal
- Water engineering
- Vattenteknik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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