1994–2004: 10 years of research on the anaerobic oxidation of ammonium

Jetten, Mike S. M.; Cirpus, Irina; Kartal, Boran; Niftrik, Laura van; Pas-Schoonen, Katinka T. van de; Sliekers, Olav; Haaijer, Suzanne Caroline Marianne; Star, Wouter R. L. van der; Schmid, Markus; Vossenberg, Jack van de; Schmidt, Ingo; Harhangi, Harry R.; Loosdrecht, M.C.M. van; Kuenen, J.G.; Camp, Huub J. M. Op den; Strous, Marc

doi:10.1042/bst0330119

Cited by 175 publications

(83 citation statements)

References 44 publications

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“…By 2010, Bae et al [30] using PCR (polymerase chain reaction) methods identified six anammox genera in activated sludges taken from WWTPs; three freshwater, two marine environment and one mixed species are also generally acknowledged. With discovery of more species and habitats, we anticipate that more versatile species will be identified, but their overall diversity remains relatively unknown [31]. Though surprisingly widespread, anammox bacteria discovered within each ecosystem appear to be dominated by a single anammox genus, indicating specialization for distinct ecological niches [32].…”

Section: Anammox and Wastewater Treatmentmentioning

confidence: 99%

The Zeolite-Anammox Treatment Process for Nitrogen Removal from Wastewater—A Review

Grismer

Collison

2017

Water

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Water quality in San Francisco Bay has been adversely affected by nitrogen loading from wastewater treatment plants (WWTPs) discharging around the periphery of the Bay. While there is documented use of zeolites and anammox bacteria in removing ammonia and possibly nitrate during wastewater treatment, there is little information available about the combined process. Though relatively large, zeolite beds have a finite ammonium adsorption potential and require periodic re-generation depending on the wastewater nitrogen loading. Use of anammox bacteria reactors for wastewater treatment have shown that ammonium (and to some degree, nitrate) can be successfully removed from the wastewater, but the reactors require careful attention to loading rates and internal redox conditions. Generally, their application has been limited to treatment of high-ammonia strength wastewater at relatively warm temperatures. Moreover, few studies are available describing commercial or full-scale application of these reactors. We briefly review the literature considering use of zeolites or anammox bacteria in wastewater treatment to set the stage for description of an integrated zeolite-anammox process used to remove both ammonium and nitrate without substrate regeneration from mainstream WWTP effluent or anaerobic digester filtrate at ambient temperatures.

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Section: Anammox and Wastewater Treatmentmentioning

confidence: 99%

The Zeolite-Anammox Treatment Process for Nitrogen Removal from Wastewater—A Review

Grismer

Collison

2017

Water

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“…The anammox process is biochemically distinct from denitrification, as it involves hydrazine as an intermediate and forms N 2 by a one-to-one combination of nitrogen from the two sources (van de Graaf et al 1995; Strous et al 1999;Jetten et al 2005). In contrast, denitrification, used here in the strict or canonical sense, is a stepwise enzymatic reduction of nitrate via nitrite, nitric oxide, and nitrous oxide to N 2 (Zumft 1997;Codispoti et al 2001).…”

mentioning

confidence: 99%

Anaerobic ammonium oxidation in the oxygen-deficient waters off northern Chile

Dalsgaard²,

et al. 2006

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We investigated the pathways of N 2 production in the oxygen-deficient water column of the eastern tropical South Pacific off Iquique, Chile, at 20uS, through short anoxic incubations with 15 N-labelled nitrogen compounds. The location was characterized by steep chemical gradients, with oxygen decreasing to below detection at ,50-m depth, while nitrite reached 6 mmol L 21 and ammonium was less than 50 nmol L 21 . Ammonium was oxidized to N 2 with no lag phase during the incubations, and when only NH þ 4 was 15 N-labeled, 15 N appeared in the form of 14 N 15 N, whereas 15 N 15 N was not detected. Likewise, nitrite was reduced to N 2 at rates similar to the rates of ammonium oxidation, and when only NO 2 2 was 15 N-labeled, 15 N appeared mainly as 14 N 15 N, whereas 15 N 15 N appeared in only one incubation. These observations indicate that ammonium was oxidized and nitrite was reduced through the anammox reaction, whereas denitrification was generally not detected and, therefore, was a minor sink for nitrite. Anammox rates were highest, up to 0.7 nmol N 2 L 21 h 21 , just below the oxycline, whereas rates were undetectable, ,0.2 nmol N 2 L 21 h 21 , deeper in the oxygen-deficient zone. Instead of complete denitrification to N 2 , oxidation of organic matter during the incubations may have been coupled to reduction of nitrate to nitrite. This process was evident from strong increases in nitrite concentrations toward the end of the incubations. The results point to anammox as an active process in the major open-ocean oxygen-deficient zones, which are generally recognized as important sites of denitrification. Still, denitrification remains the simplest explanation for most of the nitrogen deficiency in these zones.

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“…However, sediment anoxia may lead to the reduction of NO 3 -and nitrite (NO 2 -) to N 2 (or N 2 O) by denitrification (Rissanen et al 2011). Recently, ''anaerobic ammonium oxidation'' (anammox) has been identified as another process of N 2 release under anoxic conditions (Jetten et al 2005).…”

Section: Cascading Influences From Terrestrial Watersheds To Estuariesmentioning

confidence: 99%

Consequence of altered nitrogen cycles in the coupled human and ecological system under changing climate: The need for long-term and site-based research

Shibata

Branquinho

McDowell

et al. 2014

AMBIO

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Anthropogenically derived nitrogen (N) has a central role in global environmental changes, including climate change, biodiversity loss, air pollution, greenhouse gas emission, water pollution, as well as food production and human health. Current understanding of the biogeochemical processes that govern the N cycle in coupled human-ecological systems around the globe is drawn largely from the long-term ecological monitoring and experimental studies. Here, we review spatial and temporal patterns and trends in reactive N emissions, and the interactions between N and other important elements that dictate their delivery from terrestrial to aquatic ecosystems, and the impacts of N on biodiversity and human society. Integrated international and long-term collaborative studies covering research gaps will reduce uncertainties and promote further understanding of the nitrogen cycle in various ecosystems.

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1994–2004: 10 years of research on the anaerobic oxidation of ammonium

Cited by 175 publications

References 44 publications

The Zeolite-Anammox Treatment Process for Nitrogen Removal from Wastewater—A Review

The Zeolite-Anammox Treatment Process for Nitrogen Removal from Wastewater—A Review

Anaerobic ammonium oxidation in the oxygen-deficient waters off northern Chile

Consequence of altered nitrogen cycles in the coupled human and ecological system under changing climate: The need for long-term and site-based research

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