scholarly journals Full-scale Demonstration of Nitrogen Removal from Digester Liquid Using Fixed-bed Anammox Process

2020 ◽  
Vol 49 (2) ◽  
pp. 75-79
Author(s):  
Keita TAKAKI ◽  
Yoichi WATANABE ◽  
Hiroki ITOKAWA
Keyword(s):  
Nitrogen Removal ◽  
Fixed Bed ◽  
Full Scale ◽  
Anammox Process

Tentative Nitrogen Removal with Fixed Bed Processes in Malmö Sewage Treatment Plant

1990 ◽  
Vol 22 (1-2) ◽  
pp. 239-250 ◽  
Author(s):  
B. Andersson
Keyword(s):  
Activated Sludge ◽  
Nitrogen Removal ◽  
Sewage Treatment ◽  
Fixed Bed ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Full Scale ◽  
Trickling Filter ◽  
Test Program ◽  
Made In

A test program for the use of fixed bed processes in systems for nitrogen removal at an advanced sewage treatment plant is described. Results from studies on nitrification in a full scale trickling filter plant with different filter depths and at different wastewater temperatures are presented. Results from full scale experiments with denitrification/nitrification in a retrofitted activated sludge plant are also presented. The effect of an aerated submerged fixed bed in the aeration basin on nitrification was investigated. Observations of the biofilm formed on the fixed bed were made in microscope.

scholarly journals Coupled anaerobic ammonium oxidation and hydrogenotrophic denitrification for simultaneous NH4-N and NO3-N removal

2018 ◽  
Vol 79 (5) ◽  
pp. 975-984 ◽  
Author(s):  
Tatsuru Kamei ◽  
Rawintra Eamrat ◽  
Kenta Shinoda ◽  
Yasuhiro Tanaka ◽  
Futaba Kazama
Keyword(s):  
Nitrogen Removal ◽  
Inorganic Nitrogen ◽  
Nitrate Removal ◽  
Fixed Bed ◽  
Anaerobic Ammonium Oxidation ◽  
Anammox Bacteria ◽  
Ammonium Oxidation ◽  
N Removal ◽  
Anammox Process

Abstract Nitrate removal during anaerobic ammonium oxidation (anammox) treatment is a concern for optimization of the anammox process. This study demonstrated the applicability and long-term stability of the coupled anammox and hydrogenotrophic denitrification (CAHD) process as an alternative method for nitrate removal. Laboratory-scale fixed bed anammox reactors (FBR) supplied with H2 to support denitrification were operated under two types of synthetic water. The FBRs showed simultaneous NH4-N and NO3-N removal, indicating that the CAHD process can support NO3-N removal during the anammox process. Intermittent H2 supply (e.g. 5 mL/min for a 1-L reactor, 14/6-min on/off cycle) helped maintain the CAHD process without deteriorating its performance under long-term operation and resulted in a nitrogen removal rate of 0.21 kg-N/m3/d and ammonium, nitrate, and dissolved inorganic nitrogen removal efficiencies of 73.4%, 80.4%, and 77%, respectively. The microbial community structure related to the CAHD process was not influenced by changes in influent water quality, and included the anammox bacteria ‘Candidatus Jettenia’ and a Sulfuritalea hydrogenivorans-like species as the dominant bacteria even after long-term reactor operation, suggesting that these bacteria are key to the CAHD process. These results indicate that the CAHD process is a promising method for enhancing the efficiency of anammox process.

Full-scale applications for both COD and nutrient removal in a CIRCOX® airlift reactor

2007 ◽  
Vol 55 (8-9) ◽  
pp. 107-114 ◽  
Author(s):  
C.T.M.J. Frijters ◽  
M. Silvius ◽  
J. Fischer ◽  
R. Haarhuis ◽  
R. Mulder
Keyword(s):  
Nitrogen Removal ◽  
Ammonia Removal ◽  
Full Scale ◽  
Airlift Reactor ◽  
Treated Wastewater ◽  
Reactor Technology ◽  
First Case ◽  
Biological Performance ◽  
Biofilm Development ◽  
Anammox Process

The airlift reactor technology has been successfully applied at full scale for both COD and nitrogen removal. In this study, the results of the biofilm development and biological performance of two full scale reactors are discussed. At Paulaner Brewery in Munich, the airlift reactor was applied for COD and ammonia removal of anaerobically treated wastewater. In the other case the airlift reactor was applied as a pretreatment of nitrogen removal by the Anammox process. Water from a Tannery company in Lichtenvoorde in the Netherlands, The Hulshof Royal Dutch Tanneries, was pretreated anaerobically for COD removal and aerobically to remove the sulphides as sulphur. In an airlift reactor the ammonia was partially oxidised to nitrite. In both cases the granular biomass developed well; the concentrations amounted to 250 ml/L and 500 ml/L respectively. In the first case, 4 kg/m3/day of COD was removed, the soluble concentration of COD was less than 250 mg/L. The nitrification to nitrate was nearly complete and amounted to 0.5 kg NH4-N/m3/day. In the second application, 50% of the ammonia (on average 0.45 kg N/m3/d) was nitrified to nitrite. This process was easily controlled by regulating the amount of air according to the nitrite and ammonia concentrations in the effluent. It can be concluded that in both cases the particular processes were very stable and easy to operate.

Anammox Process

2017 ◽  
pp. 264-289 ◽  
Author(s):  
Ángeles Val del Río ◽  
Alba Pedrouso Fuentes ◽  
Elisa Amanda Giustinianovich ◽  
José Luis Campos Gomez ◽  
Anuska Mosquera-Corral
Keyword(s):  
Nitrogen Removal ◽  
Good Alternative ◽  
Industrial Applications ◽  
Full Scale ◽  
Phosphorus Recovery ◽  
Anammox Bacteria ◽  
Partial Nitritation ◽  
Struvite Precipitation ◽  
Anammox Process ◽  
Denitrification Process

Application of anammox based processes is nowadays an efficient way to remove nitrogen from wastewaters, being good alternative to the conventional nitrification-denitrification process. This chapter reviews the possible configurations to apply the anammox process, being special attention to the previous partial nitritation, necessary to obtain the adequate substrates for anammox bacteria. Furthermore a description of the main technologies developed and patented by different companies was performed, with focus on the advantages and bottlenecks of them. These technologies are classified in the chapter based on the type of biomass: suspended, granular and biofilm. Also a review is presented for the industrial applications (food industry, agricultural wastes, landfill leachates, electronic industry, etc.), taking into account full scale experiences and laboratory results, as well as microbiology aspects respect to the anammox bacteria genera involved. Finally the possibility to couple nitrogen removal, by anammox, with phosphorus recovery, by struvite precipitation, is also evaluated.

Full-Scale Experience for Nitrogen Removal from Piggery Waste

2005 ◽  
Vol 77 (4) ◽  
pp. 381-389 ◽  
Author(s):  
Euiso Choi ◽  
Daehoon Kim ◽  
Youngjin Eum ◽  
Zuwhan Yun ◽  
Kyong-Sok Min
Keyword(s):  
Nitrogen Removal ◽  
Full Scale
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