• Description: These systems use biological processes to break down organic matter in greywater, typically through a constructed wetland, biofilter, or living system. Microorganisms in these systems degrade organic pollutants, making the water cleaner for reuse.
• Applications: Residential and commercial buildings, landscape irrigation, and non-potable water systems in parks or urban areas.
• Advantages: Eco-friendly, low energy requirements, and can support higher quality reuse of greywater for irrigation or landscaping.