Florida Wastewater Practice Test 2026 – Complete Exam Prep

Question: 1 / 400

What condition do low DO and nutrient deficiencies promote the growth of?

Pathogenic bacteria

Filamentous bacteria

Low dissolved oxygen (DO) levels and nutrient deficiencies create an environment that is conducive to the growth of filamentous bacteria. Under such conditions, aerobic processes are hindered due to the lack of oxygen, which often leads to a shift in the microbial community. Filamentous bacteria thrive in low-DO environments because they can use alternative metabolic pathways that do not rely on oxygen.

These organisms, characterized by their thread-like structure, can form mats or filaments, particularly in activated sludge systems, which can have implications for wastewater treatment, including settling problems. The nutrient deficiencies may also stress the system, allowing filamentous bacteria to outcompete other microbial populations that are more dependent on aerobic conditions or adequate nutrient availability. This interplay of low DO and nutrient balance is essential for understanding microbial dynamics in wastewater treatment processes.

Get further explanation with Examzify DeepDiveBeta

Aerobic bacteria

Sludge organisms

Next Question

Report this question

Download Florida Wastewater Practice Test PDF Study Guide
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy