Engineering aspects and practical application of autotrophic nitrogen removal from nitrogen rich streams

Hulle, Stijn Van; Vandeweyer, Helge; Meesschaert, Boudewijn; Vanrolleghem, Peter A.; Dejans, Pascal; Dumoulin, Ann

doi:10.1016/j.cej.2010.05.037

Cited by 483 publications

(200 citation statements)

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“…Higher water temperatures also enhance bacterial activity, and denitrification and nitrification, which both produce N 2 O, are known to be enhanced when temperature increases (Saad and Conrad, 1993;Van Hulle et al, 2010;Dong et al, 2011). High N 2 O concentrations were observed in summer and spring.…”

Section: Discussionmentioning

confidence: 94%

Emission and oxidation of methane in a meromictic, eutrophic and temperate lake (Dendre, Belgium)

et al. 2017

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h i g h l i g h t sThe studied lake was meromictic and characterized by high methane, nutrients and sulfate concentrations in the water column. High aerobic and anaerobic methane oxidation rates were observed in the water column, and were dependent on the season. Anaerobic methane oxidation was linked to sulfate reduction, and potentially to nitrate reduction. Despite high methane oxidation rates, methane fluxes to the atmosphere were high. a r t i c l e i n f o a b s t r a c tWe sampled the water column of the Dendre stone pit lake (Belgium) in spring, summer, autumn and winter. Depth profiles of several physico-chemical variables, nutrients, dissolved gases (CO 2 , CH 4 , N 2 O), sulfate, sulfide, iron and manganese concentrations and d 13 C-CH4 were determined. We performed incubation experiments to quantify CH 4 oxidation rates, with a focus on anaerobic CH 4 oxidation (AOM), without and with an inhibitor of sulfate reduction (molybdate). The evolution of nitrate and sulfate concentrations during the incubations was monitored. The water column was anoxic below 20 m throughout the year, and was thermally stratified in summer and autumn. High partial pressure of CO 2 and CH 4 and high concentrations of ammonium and phosphate were observed in anoxic waters. Important nitrous oxide and nitrate concentration maxima were also observed (up to 440 nmol L À1 and 80 mmol L À1 , respectively). Vertical profiles of d 13 C-CH 4 unambiguously showed the occurrence of AOM. Important AOM rates (up to 14 mmol L À1 d À1 ) were observed and often co-occurred with nitrate consumption peaks, suggesting the occurrence of AOM coupled with nitrate reduction. AOM coupled with sulfate reduction also occurred, since AOM rates tended to be lower when molybdate was added. CH 4 oxidation was mostly aerobic (~80% of total oxidation) in spring and winter, and almost exclusively anaerobic in summer and autumn. Despite important CH 4 oxidation rates, the estimated CH 4 fluxes from the water surface to the atmosphere were high (mean of 732 mmol m À2 d À1 in spring, summer and autumn, and up to 12,482 mmol m À2 d À1 in winter).

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Section: Discussionmentioning

confidence: 94%

Emission and oxidation of methane in a meromictic, eutrophic and temperate lake (Dendre, Belgium)

et al. 2017

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“…However, additional nitrite-N is necessary for anammox reaction and the cultivation of the anammox bacteria is difficult [2]. Besides, the nitrification/denitrification process need two stages starting with nitrification, which is the aerobic oxidation of ammonia-N to nitrite-N or nitrate-N, followed by heterotrophic denitrification under anaerobic conditions [3].…”

Section: Introductionmentioning

confidence: 99%

Anodic ammonia oxidation to nitrogen gas catalyzed by mixed biofilms in bioelectrochemical systems

Zhan

Zhang

Tao

et al. 2014

Electrochimica Acta

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“…Among the proposed treatments, biological processes are the most convenient from both economic and ecological points of view. Biological nitrogen removal of reject water can be performed by i) the classical nitrification -denitrification (full ammonium oxidation to nitrate followed by heterotrophic denitrification), ii) nitritation -denitritation (oxidation of ammonium to nitrite followed by nitrite denitrification), which has some advantages compared to the conventional process [2,3] and iii) partial nitritation (PN) -anammox which is the most novel process and ensures nitrogen removal through an autotrophic process [4,5]. As a pretreatment of the anammox reactor, the PN reactor has to achieve an effluent ratio of total nitrite nitrogen (TNN = NO 2 --N + N-HNO 2 ) / total ammonia nitrogen (TAN = One of the most common PN reactors for achieving the suitable influent for anammox is the SHARON process [4].…”

Section: Introductionmentioning

confidence: 99%

High-throughput nitritation of reject water with a novel ammonium control loop: Stable effluent generation for anammox or heterotrophic denitritation

Torà

Lafuente

Garcia-Belinchón

et al. 2014

Chemical Engineering Journal

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Engineering aspects and practical application of autotrophic nitrogen removal from nitrogen rich streams

Cited by 483 publications

References 184 publications

Emission and oxidation of methane in a meromictic, eutrophic and temperate lake (Dendre, Belgium)

Emission and oxidation of methane in a meromictic, eutrophic and temperate lake (Dendre, Belgium)

Anodic ammonia oxidation to nitrogen gas catalyzed by mixed biofilms in bioelectrochemical systems

High-throughput nitritation of reject water with a novel ammonium control loop: Stable effluent generation for anammox or heterotrophic denitritation

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