Anammox biofilter with denitrification sludge as seed in treating low nitrogen strength wastewater

Li, Gaigai; Wang, Jinxing; Ning, Dingying; Chen, Bingquan; Liu, Jia; Jin, Deyuan; Guo, Wuke; Ji, Liang; Hua, Jinlian

doi:10.1016/j.jenvman.2022.116316

Cited by 9 publications

(2 citation statements)

References 37 publications

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“…The sum of PN and PS represents the total content of EPS. The morphology of the carrier with biofilm was observed at the end of operation by scanning electron microscopy (JSM‐6390A, Japan) according to literature methods 18 …”

Section: Methodsmentioning

confidence: 99%

Start‐up and operation of anammox biofilter in treating low‐strength ammonia wastewater prepared by tail water from a municipal wastewater treatment plant

Jin

Ning

et al. 2023

J of Chemical Tech & Biotech

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BACKGROUNDEconomic technology of advanced nitrogen removal of municipal wastewater is urgently needed. In this study, anammox biofilter (A‐BF) as a carbon‐ and energy‐saving advanced nitrogen removal process was tested under the conditions of sewage secondary effluent.RESULTSThe results showed that A‐BF could be successfully started up under total nitrogen (TN) of both 25 and 75 mg L−1 within 30 days at 25 °C. It achieved a nitrogen removal rate of 0.62 ± 0.08 kg‐N m−3 d−1 with nitrogen loading rate of 1.35 kg‐N m−3 d−1 at TN of 17 mg L−1. The ceramsite bed was conducive to the formation of biofilm and enrichment of functional microorganisms. The volatile suspended solid reached 1.39–7.33 g L−1, in which the abundance of the typical anammox bacteria Candidatus_Brocadia and Candidatus_Kuenenia occupied 0.96–1.35% and 0.29–0.92%, respectively.CONCLUSIONSOverall, under low TN concentration and high nitrogen load, A‐BF could be a candidate technique for advanced nitrogen removal of municipal sewage. © 2023 Society of Chemical Industry.

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Section: Methodsmentioning

confidence: 99%

Start‐up and operation of anammox biofilter in treating low‐strength ammonia wastewater prepared by tail water from a municipal wastewater treatment plant

Jin

Ning

et al. 2023

J of Chemical Tech & Biotech

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“…Temperature and pH have significant effects on the anammox process, and anammox bacteria are particularly sensitive to changes in pH. On the one hand, pH strongly inhibits the anammox process by affecting the substrate concentration (ammonium and nitrite) [113]. However, pH directly affects the anammox bacteria community structure and diversity, thus affecting the anammox process.…”

Section: Phmentioning

confidence: 99%

Nitrogen Contribution Rate of Anammox in Different Systems and Its Relationship with Environmental Factors

Cui¹,

Zhang

2023

Water

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Anammox bacteria can remove ammonium directly, which is different from what was previously believed. This is an important process for the global nitrogen cycle. Anammox bacteria were first identified in sewage treatment systems and were later proven to exist widely in natural ecosystems. To better understand the relationship between the anammox reaction and different systems, and to maintain the stability of the nitrogen cycle, anammox functional microorganisms found in different natural environments were summarized. In addition, anammox nitrogen production rate and the contribution of anammox to nitrogen were discussed under different ecological environments. A literature analysis showed that the contribution rate of nitrogen removal of anammox was the highest in the Terrestrial ecosystem, up to 87.5%. The Terrestrial ecosystem is more likely to form an anoxic or even anaerobic environment conducive to anaerobic ammoxidation. Therefore, the control of DO is an important factor in the activity of anaerobic ammoxidation. Other environmental factors affecting the contribution of anammox to nitrogen removal include temperature, pH, organic matter content, inorganic nitrogen concentration, and salinity. However, the dominant influencing factors of anammox reactions in different ecosystems are evidently different. Therefore, the mechanism of the impact of different environmental factors on the anaerobic ammonia oxidation process is necessary to discuss. This provides a scientific basis for the global nitrogen cycle and is of great significance to improve nitrogen’s biogeochemical cycle in the ecosystem.

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Experimental investigations and kinetic modeling of removal of acrylonitrile using hybrid membrane bioreactor

Sundar,

Saravanan,

Rajeshkannan

et al. 2023

Biomass Conv. Bioref.

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Anammox biofilter with denitrification sludge as seed in treating low nitrogen strength wastewater

Cited by 9 publications

References 37 publications

Start‐up and operation of anammox biofilter in treating low‐strength ammonia wastewater prepared by tail water from a municipal wastewater treatment plant

Start‐up and operation of anammox biofilter in treating low‐strength ammonia wastewater prepared by tail water from a municipal wastewater treatment plant

Nitrogen Contribution Rate of Anammox in Different Systems and Its Relationship with Environmental Factors

Experimental investigations and kinetic modeling of removal of acrylonitrile using hybrid membrane bioreactor

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