Biological nitrogen removal from landfill leachate by deammonification assisted by heterotrophic denitrification in a rotating biological contactor (RBC)

Cema, Grzegorz; Wiszniowski, Jarosław; Żabczyński, S.; Zabłocka-Godlewska, Ewa; Raszka, A.; Surmacz-Górska, Joanna

doi:10.2166/wst.2007.239

Cited by 57 publications

(22 citation statements)

References 7 publications

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“…Leachates with high nitrogen-ammonium content may be difficult to treat by conventional biological treatment processes (Cema et al 2007). Therefore, there has been a great need to improve existing technologies and to find new solutions concerning nitrogen removal.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, there has been a great need to improve existing technologies and to find new solutions concerning nitrogen removal. As an example, in the treatment of a landfill leachate, Cema et al (2007) investigated an anaerobic ammonium oxidation (Anammox) process along with autotrophic nitrification and heterotrophic denitrification in one RBC and found that this system was able to completely remove the total inorganic nitrogen. Wang et al (2010) and Xu et al (2010) also applied systems with the integration of partial nitrification, Anammox and heterotrophic denitrification processes in sequencing batch reactors with very good performances in organic matter and nitrogen removal.…”

Section: Introductionmentioning

confidence: 99%

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Denitrification of a landfill leachate with high nitrate concentration in an anoxic rotating biological contactor

et al. 2010

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The denitrification performance of a lab-scale anoxic rotating biological contactor (RBC) using landfill leachate with high nitrate concentration was evaluated. Under a carbon to nitrogen ratio (C/N) of 2, the reactor achieved N-NO(3)(-) removal efficiencies above 95% for concentrations up to 100 mg N-NO(3)(-) l(-1). The highest observed denitrification rate was 55 mg N-NO(3)(-) l(-1) h(-1) (15 g N-NO(3)(-) m(-2) d(-1)) at a nitrate concentration of 560 mg N-NO(3)(-) l(-1). Although the reactor has revealed a very good performance in terms of denitrification, effluent chemical oxygen demand (COD) concentrations were still high for direct discharge. The results obtained in a subsequent experiment at constant nitrate concentration (220 mg N-NO(3)(-) l(-1)) and lower C/N ratios (1.2 and 1.5) evidenced that the organic matter present in the leachate was non-biodegradable. A phosphorus concentration of 10 mg P-PO(4)(3-) l(-1) promoted autotrophic denitrification, revealing the importance of phosphorus concentration on biological denitrification processes.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Denitrification of a landfill leachate with high nitrate concentration in an anoxic rotating biological contactor

et al. 2010

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“…Simultaneous partial nitrification, anammox and denitrification at low dissolved oxygen concentration (≈ 0.3 g/l) and sufficiently long solid retention time (12-18 d) were observed in the aeration tanks of a leachate treatment plant in Taiwan [11]. The same combination of processes was also proved for a laboratory/scale rotating biological contactor [12]. The aim of the study, presented in this article, was to evaluate efficiency of nitrogen removal from leachate, derived from Filborna landfill (Helsingborg, Sweden) by conventional biological process (combined nitrification and denitrification in SBR), by novel biological treatment (one-reactor nitritation-anammox) and by chemical precipitation and to compare these three processes.…”

Section: Introductionmentioning

confidence: 56%

Nitrogen Removal from Landfill Leachate by Chemical and Biological Treatment: Process Comparison

Butkovskyi

Jönsson

2017

Eco-Tech

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The efficiency of nitrogen removal from leachate by different chemical and biological methods was explored. The leachate was derived from Filborna landfill (NSR AB, Helsingborg, Sweden) and was characterized as an old leachate with pH = 8.0 and comparatively low concentrations of nitrogen and organic compounds (ca. 150 mg/l NH 4 -N and 500 mg/l COD). Three treatment processes were tested in lab-scale experiments; combined nitrification and denitrification in a sequencing-batch reactor (SBR), one-reactor nitritation-anammox process in a moving-bed biofilm reactor (MBBR) in sequencing-batch configuration and nitrogen precipitation in the form of magnesium-ammonium-phosphate (MAP). State-of-the-art of these processes is described. The conventional combined nitrification/denitrification process allowed 99% removal of inorganic nitrogen with 23 mg NH 4 -N/(l·h) being the highest nitrification rate achieved. Aeration during nitrification step and addition of carbon source according to the stoichiometric ratio for denitrification was required, accounting for the operational costs. The nitritation-anammox process also allowed 99% removal of inorganic nitrogen with 3.7 g NH 4 -N/(m 2 ·d) being the highest process rate achieved while running the reactor at 25°C and pH 8.0. The process is advantageous in comparison with the conventional biological removal process, as oxygen consumption is lower and addition of carbon source is not required. With MAP precipitation at the optimal Mg:N:P ratio (1.2:1:1) only 78% removal of inorganic nitrogen was achieved. The precipitation process led to a significant increase of phosphorous concentrations in the effluent, while external magnesium and phosphorous sources to be added resulted in high process costs. Detailed descriptions of the processes and obtained results are given in the article. Comparing the three processes, conclusions are drawn that it is possible to achieve effluent nitrogen requirements (15 mg N/l) by treatment of leachate with both tested biological processes, but not with MAP precipitation. One-reactor nitritation-anammox would require the lowest operational costs, while MAP precipitation -the highest. KEYWORDSLeachate, nitrogen removal, sequencing batch reactor, Anammox, magnesium ammonium phosphate (struvite), moving-bed biofilm reactor https://doi

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“…However, recently it was proved that successful anammox operation at temperatures around 20°C is possible, especially with immobilized biomass [10,11]. Moreover, works conducted on marine anammox samples from cold regions reported significant activity even at temperatures below 10°C [5].…”

Section: Temperature Effect On Anammox Activitymentioning

confidence: 99%

Manometric measurements of temperature influence on Anammox activity

Leoniak

Balbierz

2017

E3S Web Conf.

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Abstract. Wastewater treatment plants face more stringent effluent limits, especially with regard to total nitrogen, which force them to consider sidestream nitrogen removal from digested sludge dewatering liquor which can contain up to 20% of incoming nitrogen load. One of the most promising technologies for sidestream nitrogen removal is the deammonification process which is based on partial short-cut nitrification and the Anammox process. Anammox process is an anaerobic ammonia oxidation with nitrite conducted by slowly growing autotrophic bacteria. Ensuring adequate activity of sensitive Anammox bacteria is a key condition for effective deammonification. As the main product of Anammox bacteria is the nitrogen gas, the assessment of Anammox activity can be based on manometric measurements which are a relatively simple and cost-effective alternative to traditional tests involving determination of soluble nitrogen forms. This paper presents the principles of manometric method as well as results of temperature influence on Anammox activity obtained in a commercially available lab-scale set-up.

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Biological nitrogen removal from landfill leachate by deammonification assisted by heterotrophic denitrification in a rotating biological contactor (RBC)

Cited by 57 publications

References 7 publications

Denitrification of a landfill leachate with high nitrate concentration in an anoxic rotating biological contactor

Denitrification of a landfill leachate with high nitrate concentration in an anoxic rotating biological contactor

Nitrogen Removal from Landfill Leachate by Chemical and Biological Treatment: Process Comparison

Manometric measurements of temperature influence on Anammox activity

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