Nanoarchitectured structure and population dynamics of anaerobic ammonium oxidizing (anammox) bacteria in a wastewater treatment plant

Huang, Yan‐Hua; Chen, Shiou-Shiou; Jetten, Mike S. M.; Lin, Jih‐Gaw

doi:10.1016/j.jhazmat.2020.122714

Cited by 14 publications

(2 citation statements)

References 59 publications

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“…The dynamics of wetland hydrology not only alter the response of wetland systems, but also alter the microbial genes responsible for N removal pathways (Bambauer et al, 1998;Fritsche et al, 1999;Kämpfer et al, 1999;Doronina et al, 2010;Drury et al, 2013;Eichmiller et al, 2013;Liu et al, 2013;Chen et al, 2014;Mo et al, 2016;Isabwe et al, 2018). Systems with high water levels contained significantly higher DO concentrations in their bed sediment which can change the microbial community structure and composition (Han et al, 2020;Huang et al, 2020). In addition, during periods of drawdown, enhanced diffusion of oxygen can lead to the promotion of nitrification process over denitrification (Baldwin and Mitchell, 2000;Knorr et al, 2008).…”

Section: Hydrology and Hydraulics Of Constructed Wetlandsmentioning

confidence: 99%

Microbial Communities and Nitrogen Transformation in Constructed Wetlands Treating Stormwater Runoff

2022

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Microbial communities play a vital role in nitrogen (N) removal in constructed wetlands (CWs). However, the lack of studies on microbial characteristics of wetland systems designed to treat stormwater demonstrates the importance of comprehensive investigation on microbial response to wetland fluctuations. Moreover, the observed inconsistency in N removal, and detected links between microbial shifts and wetland water level fluctuations is an area of research interest perculiar to stormwater applications. This study surveyed nearly 150 publications to provide a summary and evaluation of N removal efficiency in different types of CWs where microbial communities and their behavior have been correlated to regulating factors. Factors such as flow regime, plants, and physico-chemical properties (e.g., temperature, dissolved oxygen, pH, and nitrogen concentration) were found to significantly influence microbial diversity and composition. Although many studies have analyzed microbial N removal, a majority conducted their studies in bioretention systems. Accordingly, some of the microbial pathways in CWs designed for stormwater treatment have not been investigated. As such, it is suggested that pathways, such as dissimilatory nitrate reduction to ammonium (DNRA) and comammox activity and their changes over dry-wet cycles in stormwater constructed wetlands be investigated. This information could assist engineers to take advantage of the presence of other N transforming communities which could improve microbial diversity within wetland systems. Moreover, it is recommended to track microbial functional genes and their changes over wetland water fluctuation to develop an ecosystem with conditions favorable for microbial pathways with higher N removal potential. In conclusion, the findings of the current literature review reinforce the importance of stormwater runoff treatment and the implementation of new design strategies that are able to enhance microbial activity and diversity leading to a better treatment outcome.

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Section: Hydrology and Hydraulics Of Constructed Wetlandsmentioning

confidence: 99%

Microbial Communities and Nitrogen Transformation in Constructed Wetlands Treating Stormwater Runoff

2022

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“…In this regard, Ca. K. stuttgartiensis has frequently been identified as the dominant anammox species in other PN-A systems treating high-strength landfill leachate [39][40][41] and its enrichment has been linked to the operational conditions applied.…”

Section: Microbial Community In the Reactorsmentioning

confidence: 99%

Scaling-Up and Long-Term Operation of a Full-Scale Two-Stage Partial Nitritation-Anammox System Treating Landfill Leachate

et al. 2021

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(1) Background: Biological treatment of leachate in landfill sites using anaerobic ammonium oxidation (anammox) is challenging because of the intrinsic characteristics of this complex wastewater. In this work, the scale-up and subsequent full-scale implementation of the PANAMMOX® technology (LEQUIA Research Group, Girona, Catalonia, Spain) are presented as a case study to achieve long-term nitrogen (N) removal from mature leachate mostly through a completely autotrophic pathway. (2) Methods: The treatment system consists of two sequencing batch reactors (SBRs) running in series to individually operate partial nitritation (PN) and anammox (A). Following biological treatment, physicochemical oxidation (i.e., Fenton-based process) was used to remove the remaining non-biodegradable organic matter. A cost analysis comparative was conducted in relation to the former technology used on-site for treating the leachate. (3) Results: The scale-up of the process from pilot- to full-scale was successfully achieved, finally reaching an average removal of 7.4 kg N/d. The composition of the leachate changed over time, but especially once the landfill site stopped receiving solid waste (this fact involved a marked increase in the strength of the leachate). The adjustment of the alkalinity-to-ammonium ratio before feeding PN-SBR helped to improve the N-removal efficiency. Values of conductivity above 25 mS/cm in A-SBR could negatively affect the performance of the anammox process, making it necessary to consider a dilution strategy according to the on-line monitoring of this parameter. The analysis of the operational costs showed that by implementing the PANAMMOX® technology (LEQUIA Research Group, Girona, Catalonia, Spain) in the landfill site, savings up to 32% were achievable. (4) Conclusions: Treatment of mature landfill leachate in such a two-stage PN-A system was demonstrated as feasible and economically appealing despite the complexity of this industrial wastewater. Accurate expert supervision of the process was a key factor to reaching good performances.

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A review on enhancing luminescence and colorimetric sensing in chitosan-based sensors with doping with organic and inorganic materials

Mohammadzadeh Kakhki

2024

J Mater Sci

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Nanoarchitectured structure and population dynamics of anaerobic ammonium oxidizing (anammox) bacteria in a wastewater treatment plant

Cited by 14 publications

References 59 publications

Microbial Communities and Nitrogen Transformation in Constructed Wetlands Treating Stormwater Runoff

Microbial Communities and Nitrogen Transformation in Constructed Wetlands Treating Stormwater Runoff

Scaling-Up and Long-Term Operation of a Full-Scale Two-Stage Partial Nitritation-Anammox System Treating Landfill Leachate

A review on enhancing luminescence and colorimetric sensing in chitosan-based sensors with doping with organic and inorganic materials

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