Which organisms feed on protozoans and bacteria and are crucial in wastewater treatment?

Study for the GWWI WEF Wastewater Treatment Fundamentals Test. Review key concepts with flashcards and multiple-choice questions, complete with hints and explanations. Prepare to ace your exam!

The organisms that feed on protozoans and bacteria, playing a crucial role in wastewater treatment, are rotifers. These microscopic, multicellular animals are known for their ability to eat and help control populations of bacteria and protozoans in activated sludge systems. By consuming these microorganisms, rotifers contribute to the breakdown of organic matter, thereby promoting a more effective and efficient wastewater treatment process.

In addition to controlling microbial populations, rotifers also contribute to nutrient cycling within the treatment system. Their feeding activities not only help in reducing the overall bacterial load but also enhance the floc formation and stability in the treatment process. This is essential for maintaining an efficient treatment environment where the separation of solids and liquids can occur effectively.

While crustaceans, such as water fleas, may also refer to organisms in a similar ecological niche, rotifers are specifically recognized for their significant role in wastewater treatment due to their targeted feeding on the microbial community.

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