Metagenomic data of the microbial community of lab-scale nitritation-anammox sequencing-batch bioreactor performing nitrogen removal from synthetic wastewater

Mardanov, Andrey V.; Kotlyarov, R.V.; Beletsky, Alexey V.; Nikolaev, Yu. A.; Kallistova, A. Yu.; Грачев, В. А.; Berestovskaya, Yulia Y.; Pimenov, Nikolai V.; Ravin, Nikolai V.

doi:10.1016/j.dib.2019.104722

Cited by 7 publications

(3 citation statements)

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“…In more detail, we used two data sets from rivers, River1 ( https://www.ncbi.nlm.nih.gov/sra/?term=ERR466320 ) and River2 ( 37 ), one from the seagrass rhizosphere ( 38 ), one from the skin ( 39 ), one from the stool ( 40 ), one from the soil ( 41 ), one from thermal pools ( 42 ), and three from bioreactors (Bioreactor1 [ 43 ], Bioreactor2 [ 44 ], and Bioreactor3 [ 44 ]). Nine of the 10 data sets consist of short reads, whereas the last data set consists of ONT MinION long reads.…”

Section: Methodsmentioning

confidence: 99%

Using AnnoTree to Get More Assignments, Faster, in DIAMOND+MEGAN Microbiome Analysis

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Section: Methodsmentioning

confidence: 99%

Using AnnoTree to Get More Assignments, Faster, in DIAMOND+MEGAN Microbiome Analysis

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“…The medium composition and preparation are described in Kallistova et al (2020). An activated sludge containing anammox bacteria (Mardanov et al, 2019a) was used as an inoculum for the reactors' first run. One liter of the inoculum with a total suspended solid content of 3.8 g/l was added to 3.5 L of the medium to start each reactor.…”

Section: Setup Configuration and Operationmentioning

confidence: 99%

New Insight Into the Interspecies Shift of Anammox Bacteria Ca. “Brocadia” and Ca. “Jettenia” in Reactors Fed With Formate and Folate

et al. 2022

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The sensitivity of anaerobic ammonium-oxidizing (anammox) bacteria to environmental fluctuations is a frequent cause of reactor malfunctions. It was hypothesized that the addition of formate and folate would have a stimulating effect on anammox bacteria, which in turn would lead to the stability of the anammox process under conditions of a sharp increase in ammonium load, i.e., it helps overcome a stress factor. The effect of formate and folate was investigated using a setup consisting of three parallel sequencing batch reactors equipped with a carrier. Two runs of the reactors were performed. The composition of the microbial community was studied by the 16S rRNA gene profiling and metagenomic analysis. Among anammox bacteria, Ca. “Brocadia” spp. dominated during the first run. A stimulatory effect of folate on the daily nitrogen removal rate (dN) was identified. The addition of formate led to progress in dissimilatory nitrate reduction and stimulated the growth of Ca. “Jettenia” spp. The spatial separation of two anammox species was observed in the formate reactor: Ca. “Brocadia” occupied the carrier and Ca. “Jettenia”—the walls of the reactors. Biomass storage at low temperature without feeding led to an interspecies shift in anammox bacteria in favor of Ca. “Jettenia.” During the second run, a domination of Ca. “Jettenia” spp. was recorded along with a stimulating effect of formate, and there was no effect of folate on dN. A comparative genome analysis revealed the patterns suggesting different strategies used by Ca. “Brocadia” and Ca. “Jettenia” spp. to cope with environmental changes.

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“…Chloroflexi, UTCFX1 is anaerolineae bacterium that commonly detected in active sludge from anaerobic digesters and SBR in WWTPs 269 270 . Although the ecological role of the Anaerolineae remains uncertain due to the scarcity of isolates and annotated genome sequences, recent studies found the evidence of its ability of carbohydrate fermentation 270 . Bacteria of Acidobacteria phylum carry carbon metabolism-associated genes involved in the degradation of polysaccharides and aromatic compounds 271 .…”

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Investigating the fate of organic micropollutants due to the dosing of iron salt or iron rich drinking water treatment sludge in urban wastewater system

Kulandaivelu¹

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Hydrogen sulfide production in the sewer network is the major cause for sewer corrosion and odour related issues. Iron (Fe) salt dosing is one of the efficient methods for sulfide control in the sewer network by precipitating the biologically formed sulfide to iron sulfide (FeS) particles. Though Fe salt is efficient in controlling sulfide, it requires continuous dosing that necessitates the search for alternative cheap sources.Meanwhile, water utilities are seeking an efficient management strategy for the discharge of sludge by-product from the drinking water treatment process. This byproduct also known as drinking water treatment sludge (DWTS) is either Fe-rich or aluminium (Al)-rich based on the coagulant used. The high Fe content in Fe-DWTS, could potentially be used to replace Fe salts for sulfide control in the sewer network.During Fe salt/Fe-DWTS dosing, formation of FeS particles is considered as the major sulfide control mechanism in the sewer network. Previous studies explored the multiple benefits of upstream sewer Fe dosing in the downstream processes such as phosphates removal in the bioreactor and sulfide mitigation in the anaerobic digester of the receiving wastewater treatment plant (WWTP). However, it is also well known that Fe salt is an effective coagulant for organic micropollutants (MPs) removal in the water treatment processes. As organic MPs such as pharmaceuticals, licit and illicit drugs, food additives etc., are ubiquitous in wastewater, the impact of dosing Fe salt/Fe-DWTS in the sewer network on the fate of these MPs is important but largely unknown. This thesis aims to address this research gap by investigating the impact of upstream Fe salt/Fe-DWTS dosing in sewers on the fate of organic MPs in the downstream sewer network and treatment process.Firstly, the impact of Fe salt dosing on the fate of selected organic MPs (8 compounds) was studied in a lab-scale rising main sewer reactor. The sulfide produced by sewer biofilms reacted with Fe 3+ forming black coloured FeS. Among the selected MPs, morphine, methadone and atenolol had >90% initial rapid removal within 5 min of Fedosing in the sewer reactor. The ultimate removal after 6 hr of retention time in the reactor reached 93-97%. Other compounds, ketamine, codeine, carbamazepine and acesulfame had 30-70% decrease of aqueous concentrations. The ultimate removal varied between 35 and 70% depending on their biodegradability. In contrast, paracetamol had no initial removal. Adsorption to the surface of FeS particles was likely responsible for the rapid MPs removal. viii Contribution by others to the thesisThis thesis contains some significant and substantial contribution from others as described below.

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Metagenomic data of the microbial community of lab-scale nitritation-anammox sequencing-batch bioreactor performing nitrogen removal from synthetic wastewater

Cited by 7 publications

References 9 publications

Using AnnoTree to Get More Assignments, Faster, in DIAMOND+MEGAN Microbiome Analysis

Using AnnoTree to Get More Assignments, Faster, in DIAMOND+MEGAN Microbiome Analysis

New Insight Into the Interspecies Shift of Anammox Bacteria Ca. “Brocadia” and Ca. “Jettenia” in Reactors Fed With Formate and Folate

Investigating the fate of organic micropollutants due to the dosing of iron salt or iron rich drinking water treatment sludge in urban wastewater system

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