Dive into the 2025 NY Wastewater Exam – Flush Away the Competition with Confidence!

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Which of the following best describes methane-forming bacteria in an anaerobic digester?

Resistant to environmental changes

Highly adaptable and quick to reproduce

Sensitive to environment and environmental changes

Methane-forming bacteria, also known as methanogens, play a crucial role in anaerobic digestion, a process commonly used in wastewater treatment to stabilize organic material while producing biogas. These bacteria thrive in low-oxygen conditions and are pivotal in converting organic matter into methane and carbon dioxide.

The sensitivity of these bacteria to environmental conditions is significant. Changes in parameters such as temperature, pH, and the concentration of volatile fatty acids can adversely affect their activity. These factors can lead to decreased methane production, which can disrupt the entire anaerobic digestion process. Maintaining stable conditions is essential for optimizing their performance and efficiency. Therefore, emphasizing their vulnerability to environmental fluctuations highlights the need for careful monitoring and management within an anaerobic digester.

Understanding that methane-forming bacteria are sensitive to these changes reiterates the importance of creating an optimal environment for their growth and function, enabling effective biogas production.

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Independent of nutrients

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