Medium shift influence on nitrogen removal bacteria: Ecophysiology and anammox process performance

Banach-Wiśniewska, Anna; Tomaszewski, Mariusz; Cema, Grzegorz; Ziembińska-Buczyńska, Aleksandra

doi:10.1016/j.chemosphere.2019.124597

Cited by 8 publications

(7 citation statements)

References 48 publications

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“…Besides the anammox bacteria, genes from the AOB fraction were all relatively high in abundance amongst the nitrogen removal community, especially in the control reactor at a low temperature. The possible activity of the AOB bacteria in the anammox biomass and the presence of nitrification was also confirmed in our previous work 39,40 . For each investigated condition, amoA gene, specific to AOB, was more abundant than the nxrA gene, the one characteristic of NOB.…”

Section: Nitrogen Removal Efficiencysupporting

confidence: 83%

“…Nitrogen removal results are summarized and compared with microbial community analysis performed using molecular biology tools. As it has been previously reported, the anammox bacteria, nitrite-oxidizing bacteria (NOB), ammonia-oxidizing bacteria (AOB), and denitrifies are coexisting groups of microorganisms in the anammox biomass 39,40 . In order to get more insight into the microbial community, we determined the relative abundance of hzo, amoA, nxrA, nirS, and nirK genes (Fig.…”

Section: Nitrogen Removal Efficiencymentioning

confidence: 82%

“…qPCR analysis was completed based on the functional genes, specific for anammox bacteria, denitrifiers, NOB and AOB (Table 1). Details for the qPCR procedure and sequence of the primers are described elsewhere 39,40 . All reactions were conducted at least in triplicates.…”

Section: Molecular Biology Analysesmentioning

confidence: 99%

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Effect of biomass immobilization and reduced graphene oxide on the microbial community changes and nitrogen removal at low temperatures

Banach-Wiśniewska

Tomaszewski

Hellal

et al. 2021

Sci Rep

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The slow growth rate and high optimal temperatures for the anaerobic ammonium oxidation (anammox) bacteria are significant limitations of the anammox processes application in the treatment of mainstream of wastewater entering wastewater treatment plant (WWTP). In this study, we investigate the nitrogen removal and microbial community changes in sodium alginate (SA) and sodium alginate–reduced graphene oxide (SA-RGO) carriers, depending on the process temperature, with a particular emphasis on the temperature close to the mainstream of wastewater entering the WWTP. The RGO addition to the SA matrix causes suppression of the beads swelling, which intern modifies the mechanical properties of the gel beads. The effect of the temperature drop on the nitrogen removal rate was reduced for biomass entrapped in SA and SA-RGO gel beads in comparison to non-immobilized biomass, this suggests a ‘‘protective” effect caused by immobilization. However, analyses performed using next-generation sequencing (NGS) and qPCR revealed that the microbial community composition and relative gene abundance changed significantly, after the implementation of the new process conditions. The microbial community inside the gel beads was completely remodelled, in comparison with inoculum, and denitrification contributed to the nitrogen transformation inside the beads.

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Section: Nitrogen Removal Efficiencysupporting

confidence: 83%

Section: Nitrogen Removal Efficiencymentioning

confidence: 82%

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Effect of biomass immobilization and reduced graphene oxide on the microbial community changes and nitrogen removal at low temperatures

Banach-Wiśniewska

Tomaszewski

Hellal

et al. 2021

Sci Rep

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“…In our experiments we found them to be up to 12.97%. Other authors reported that the share of anammox bacteria treating landfill leachate is approximately 20% [47,48].…”

Section: Resultsmentioning

confidence: 99%

Untitled

2021

BCC

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The National Research Programme "Innovative Low-Toxic Bioactive Systems for Precision Medicine (BioActiveMed)" was approved by DCM №658/14.09.2018 and is performed on the basis of a signed agreement Grant DO1-217/30.11.2018 between Ministry of Education and Science and Bulgarian Academy of Sciences (BAS). A prerequisite for the implementation of the NRP BioActiveMed is the fact that Bulgaria, with its unique climatic and ecological factors, offers an amazing variety of plant and animal species. Isolated extracts contain a series of bioactive compounds that resembles combined therapy with several synthetic compounds. It is well known that extracts from natural products are less toxic than synthetic and are better tolerated by the human body. Therefore, the proposed in the Programme approach is one of the key to overcoming multiple drug resistance.The Programme is focused on the development of new low toxic bioactive substances and systems containing extracts of natural sources (of plant or animal origin) from Bulgaria for the prevention and support of the therapy of certain diseases. The first step is the isolation and purification of bioactive substances of plant and animal origin, their appropriate incorporation in suitable innovative systems and development of new methodologies for their characterization and determination of quality and applicability as new products in personalized and preventative medicine. One of the planned long-term applications is the implementation of new innovative healthy and safe food supplements and cosmetics with a preventive potential for personalized medicine.The research has been carried out with the participation of leading scientists with proven scientific capacity, as well as with the active participation of young scientists and PhD students from the Consortium formed. The leading organization is the Bulgarian Academy of Sciences and the following scientific organizations (seven scientific units from the BAS) and higher education organizations with the highest capacity in the field of the Programme are

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“…Their data indicated that a microbial biomass, with low biodiversity, is more resistant to antibiotic stress during short-term exposure. Therefore, due to the fact that anammox bacteria co-exist with other nitrogen cycle bacteria in the anammox biomass (Ziembińska-Buczyńska et al 2019;Banach-Wiśniewska et al 2019), it can be assumed that the high diversity of these microorganisms will influence the activity of anammox biomass. One of the antibiotics group most often used in medicine and animal breeding are tetracyclines (TCs).…”

Section: Short-term Exposure Effect Of Antibiotics On Anammox Processmentioning

confidence: 99%

The influence of antibiotics on the anammox process — a review

Gamoń

Cema

Ziembińska-Buczyńska

2021

Environ Sci Pollut Res

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Anaerobic ammonium oxidation (anammox) is one of the most promising processes for the treatment of ammonium-rich wastewater. It is more effective, cheaper, and more environmentally friendly than the conventional process currently in use for nitrogen removal. Unfortunately, anammox bacteria are sensitive to various substances, including heavy metals and organic matter commonly found in the wastewater treatment plants (WWTPs). Of these deleterious substances, antibiotics are recognized to be important. For decades, the increasing consumption of antibiotics has led to the increased occurrence of antibiotics in the aquatic environment, including wastewater. One of the most important issues related to antibiotic pollution is the generation and transfer of antibiotic resistance bacteria (ARB) and antibiotic resistance genes (ARGs). Here, we will discuss the effect of short- and long-term exposure of the anammox process to antibiotic pollutants; with a special focus on the activity of the anammox bacteria, biomass properties, community structures, the presence of antibiotic resistance genes and combined effect of antibiotics with other substances commonly found in wastewater. Further, the defense mechanisms according to which bacteria adapt against antibiotic stress are speculated upon. This review aims to facilitate a better understanding of the influence of antibiotics and other co-pollutants on the anammox process and to highlight future avenues of research to target gaps in the knowledge.

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Medium shift influence on nitrogen removal bacteria: Ecophysiology and anammox process performance

Cited by 8 publications

References 48 publications

Effect of biomass immobilization and reduced graphene oxide on the microbial community changes and nitrogen removal at low temperatures

Effect of biomass immobilization and reduced graphene oxide on the microbial community changes and nitrogen removal at low temperatures

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The influence of antibiotics on the anammox process — a review

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