Nitrification and Denitrification‐Microbial Fundamentals and Consequences for Application

Zart, Dirk; Stüven, Ralf; Bock, Eberhard

doi:10.1002/9783527620944.ch3

Cited by 4 publications

(4 citation statements)

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“…2). It could be connected with hydroxylamine (ammonia oxidation intermediate- [5]) accumulation, which inhibits nitrite oxidation [31]. Some chemical compounds present in leachate might have inhibited hydroxylamine oxygenase when pH value was lower.…”

Section: Resultsmentioning

confidence: 99%

“…The denitrification process can be described as a kind of anoxic respiration [5]. This process is performed by various chemoorganotrophic, lithoautotrophic and phototrophic bacteria and some fungi [5].…”

Section: Introductionmentioning

confidence: 99%

“…This process is performed by various chemoorganotrophic, lithoautotrophic and phototrophic bacteria and some fungi [5]. However, chemoorganoheterotrophic bacteria are used in the practice of wastewater treatment; the denitrifiers need specific amount of organic carbon to perform the denitrification.…”

Section: Introductionmentioning

confidence: 99%

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Kinetics of nitrogen removal from sanitary landfill leachate

Kaczorek

Ledakowicz

2006

Bioprocess Biosyst Eng

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Leachates from municipal landfill 'Lublinek' in Lodz city (Poland) were treated in two-sludge sequence batch reactor systems (type ND). The external carbon source--sodium acetate was used in denitrification. Two versions were tested--with and without supernatant recirculation from D-SBR to N-SBR. The 99% removal of inorganic nitrogen compounds was achieved in both versions. Due to recirculation, the buffering (by means of sodium bicarbonate) was not necessary. Kinetic models for nitrification and denitrification processes were proposed. Kinetic parameters of the models were estimated by the optimization method. The experimental results of both nitrification steps (oxidation of ammonia to nitrites and nitrites to nitrates) were best fitted with the interactive limitation model of nitrogen compounds and oxygen. The denitrification process was limited only by the concentration of nitrogen compounds.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Kinetics of nitrogen removal from sanitary landfill leachate

Kaczorek

Ledakowicz

2006

Bioprocess Biosyst Eng

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“…Some researcher reveal the limiting factors for an aerobic process were as follows: bacterial present, oxygen concentration, electron acceptor, chemical concentration as carbon sources, and detention time. Anaerobic process as denitrification process was performed by various chemoorganotrophic, lithoautotrophic and phototrophic bacteria and some fungi (Zart et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

Plants Growth Rate in Evapotranspiration continuous system reactors as the 2nd Treatment at Anaerobic-evapotranspiration system with High Strength Ammonium in Leachate Influent

2014

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Ammonium is one of parameter which responsible to leachate toxicity. Preliminary research was shown that the Fimbristylis globulosa (water plant), Alocasia macrorrhiza (terrestrial plant) and Eleusine indica (terrestrial grass) were potential plants for used as object in evaporation reactor system with high strength ammonium concentration in leachate treatment. This research was integrated of anaerobic system with evapotranspiration system with continuous influent using ammonium concentration in leachate was 2000 mg/l NH4-N. Plants growth rate was analyzed for 25 days operated. The result shown that average of thallus growth rate of Fimbristylis globulosa was 17,5 cm d-1. The average of leaf and thallus growth rate of Alocasia macrorrhiza was 18,1 cm d-1 and 3,2 cm d-1 respectively. The average of blade and thallus of Eleusine indica were same that was 4,7 cm d-1 .This research conclude that integration system of anaerobic and evpotranspiration was be potential used for high strength ammonium in leachate treatment.

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