Recent research has revealed that the microbial predators present in wastewater treatment plants experience seasonal fluctuations. These predators, called ciliates, are important for breaking down organic matter and preventing the growth of harmful bacteria, but until now, scientists were unaware of the changes they undergo throughout the year.

In a new study, researchers used a combination of molecular genetic techniques and microscopic observations to analyze ciliates in wastewater treatment plants in the northern temperate zone. They found that the population of ciliates had significant seasonal variations, with peak populations in the summer and fall. The researchers also observed that the ciliate composition changed over the course of the year, indicating that different species are more active in different seasons.

This research is an important step forward in understanding how microbial predators in wastewater treatment plants respond to seasonal changes. Knowing which species are most active in different seasons can help wastewater treatment plant managers optimize their processes to ensure the most effective removal of organic matter and harmful bacteria.

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source: Phys.org