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Correlation between nitrite accumulation and the concentration of AOB in a nitritation reactor
Environmental Earth Sciences, 2014 Nitritation is an innovative biological nitrogen removal method in wastewater, and it has the advantages of energy and economy. The correlation between a nitrite conversion rate and the gene copy numbers of ammonia oxidizing bacteria (AOB) in a ...
Kyungik Gil +2 more
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Effect of ammonia oxidizing bacteria (AOB) kinetics on bioaugmentation
Bioresource Technology, 2012Bioaugmentation with ammonium oxidizing bacteria (AOB) was tested for 620d. A seeding reactor (R1), two seeded reactors (R2 at 21°C; R3 at 15°C) and an unseeded-control reactor (R4 at 21°C) were operated in parallel (2 ...
MUNZ, GIULIO, Szoke N, Oleszkiewicz J.
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Kinetic analysis on the two-step processes of AOB and NOB in aerobic nitrifying granules
Applied Microbiology and Biotechnology, 2009 Complete granulation of nitrifying sludge was achieved in a sequencing batch reactor. For the granular sludge, batch experiments were conducted to characterize the kinetic features of ammonia oxidizers (AOB) and nitrite oxidizers (NOB) in the granules ...
Han-Qing Yu, Xiao-Yan Li, Fang Fang
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Oxidative Stress and Antioxidant Biofactor (AOB®)
1997Antioxidant biofactor (AOB®) is an unique processed grain food obtained from soybean, wheat, rice germ, rice bran, tear grass, green tea, sesame, citron, green leaves extracts and malted rice. These ingredients were degraded to low molecular weight compounds by roast and fermentation with Aspergilus oryzae (Fig. 1).
Yukiko Minamiyama +4 more
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Effects of temperature gradients on AOB/NOB competition in MABR biofilms
2020<p>The membrane aerated biofilm reactor (MABR) is an emerging wastewater treatment technology that can greatly decrease energy requirements for wastewater treatment. It consists of cassettes of air-supplying, hollow-fiber membranes that can retrofit existing activated sludge processes.
Patricia Perez +3 more
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The different responses of AOA and AOB communities to irrigation systems in the semi-arid region of Northeast China [PDF]
Frontiers in MicrobiologyAmmonia oxidation is the rate-limiting step in nitrification and the key step in the nitrogen (N) cycle. Most soil nutrients and biological indicators are extremely sensitive to irrigation systems, from the perspective of improving soil fertility and ...
Cuilan Li
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Simulated distribution nitrification: Nitrification Index evaluation and viable AOB
Journal AWWA, 2013Lab‐scale reactors were used to evaluate the impact of simultaneously increasing temporal influent monochloramine (NH2Cl) concentrations (0.0 to 3.2 mg/L Cl2) and chlorine‐to‐nitrogen mass ratios (0:1 to 3.2:1) on nitrification, allowing evaluation of the recently proposed Nitrification Index (NI) for chloraminated drinking water distribution system ...
Karen A. Schrantz +2 more
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[Inhibiting Form of Ammonium to AOB and Inhibiting Rule].
Huan jing ke xue= Huanjing kexue, 2016The inhibiting form and rule of ammonium to ammonia oxidation bacteria ( AOB) were investigated through a series of batch experiments using biofilm reactor,in which the reaction conditions were controlled to 30 degrees C, HRT 4.76 h, ORP 100 mV. The results showed that when the AOB activity was half-inhibited at an ammonia nitrogen concentration of 2 ...
Jian-hong, Cui +4 more
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Manipulation of DNA damage checkpoint signaling in cancer cells by antioxidant biofactor (AOB)
Food Funct., 2013Antioxidant biofactor (AOB) is one of the fermented grain food supplements commercially available in Japan and other countries. Herein, we investigated the effect of AOB on the UVC (254 nm) induced DNA damage in A549 cells. Both distilled water and MeOH extracts of AOB did not show any significant cell toxicity.
Naoto, Tatewaki +4 more
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