Wastewater Treatment with Bacterial Representatives of the Thiothrix Morphotype

Bacteria of the morphotype, comprising the genera , and , are frequently encountered in domestic and industrial wastewater treatment systems, but they are usually not clearly differentiated due to the marked similarity in their morphologies. Methods ranging from light microscopy, FISH and PCR to mod...

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Bibliographic Details
Published in:International journal of molecular sciences 2024-08, Vol.25 (16), p.9093
Main Authors: Gureeva, Maria V, Muntyan, Maria S, Ravin, Nikolai V, Grabovich, Margarita Yu
Format: Article
Language:English
Subjects:
Bacteria
Efficiency
Metabolism
Microorganisms
Oxidation
Phosphorus
Pollutants
Review
Sewage - microbiology
Sludge
Sulfides - metabolism
Sulfur
Taxonomy
Thiofilum
Thiolinea
Thiothrix
Thiothrix - genetics
Thiothrix - metabolism
Waste Disposal, Fluid - methods
wastewater
Wastewater - microbiology
Water Purification - methods
Water treatment
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Summary:Bacteria of the morphotype, comprising the genera , and , are frequently encountered in domestic and industrial wastewater treatment systems, but they are usually not clearly differentiated due to the marked similarity in their morphologies. Methods ranging from light microscopy, FISH and PCR to modern high-throughput sequencing are used to identify them. The development of these bacteria in wastewater treatment systems has both advantages and disadvantages. On the one hand, the explosive growth of these bacteria can lead to activated sludge bulking or clogging of the treatment system's membranes, with a consequent decrease in the water treatment efficiency. On the other hand, members of the morphotype can improve the quality of granular sludge and increase the water treatment efficiency. This may be due to their capacity for sulfide oxidation, denitrification combined with the oxidation of reduced sulfur compounds, enhanced biological phosphate removal and possibly denitrifying phosphate removal. The recently obtained pangenome of the genus allows the explanation, at the genomic level, of the experimental results of various studies. Moreover, this review summarizes the data on the factors affecting the proliferation of representatives of the morphotype.
ISSN:1661-6596
1422-0067
1422-0067
DOI:10.3390/ijms25169093