Anaerobic digestion stands out in wastewater treatment for operating without oxygen, using specialized microbes to break down organic matter into methane (biogas), carbon dioxide, and digestate.
The system begins with pretreatment to remove suspended particles, preventing reactor clogs. Wastewater then enters a sealed anaerobic tank, where microbes work in stages to decompose organics. A key advantage is biogas recovery—methane can be used for heating or power generation, cutting energy costs. Technologies like UASB (Upflow Anaerobic Sludge Blanket) handle high-concentration wastewater, while AnMBR (Anaerobic Membrane Bioreactor) boosts effluent quality.
Unlike aerobic systems, it has low energy needs (no aeration) and reduces sludge volume. It excels at treating high-COD wastewater, such as from food processing, turning waste into a resource. Click here to know more.
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