How do anaerobic reactors work?
The anaerobic reactor operates based on the metabolic processes of anaerobic microorganisms, which decompose organic matter in the absence of oxygen. Anaerobic reactors typically involve several stages; here is a basic workflow:
Pretreatment: Before anaerobic reactor treatment, organic waste usually requires pretreatment, such as crushing, screening, and pH adjustment, to adapt to the anaerobic microbial digestion process.
Fermentation Stage: Organic matter is decomposed by microorganisms in the fermentation tank. In this stage, microorganisms convert organic waste into smaller molecules such as volatile fatty acids (VFAs), hydrogen, and carbon dioxide. The gases produced in this process are mainly methane and carbon dioxide, but may also include other small amounts of gases.
Methanogenic Stage: In the methanogenic tank, the gases produced in the fermentation stage are further decomposed, and methanogens convert VFAs and other small molecules into methane. This stage is the most energy-intensive part of anaerobic digestion, and the methane gas produced can be used as an energy source.
Storage and Utilization: The collected methane gas can be used for power generation, heating, or as fuel gas. In some cases, the gas may be purified and injected into natural gas pipelines.
Buffering and Adjustment: Anaerobic reactors typically include buffer systems
