| Extensive processes | Advantages | Disadvantages |
| Natural lagoon | - Low operational cost and maintenance. - Suitable for high pollutant loads. - Effective reduction of pathogens and organic matter. | - Requires a large area. - Sensitive to seasonal and climatic variations. |
| Horizontal flow constructed wetlands | - Effective in treating BOD5, COD, nitrates, phosphates. - Provides a habitat for biodiversity. - Low operational and maintenance cost. | - Requires significant area. - Less effective for high fecal coliform loads. - Sensitive to seasonal variations. |
| Vertical flow constructed wetlands | - Effective for treating organic pollutants and nutrients. - Minimal maintenance. - Aesthetically pleasing. | - Requires a certain area. - May need pretreatment for very high loads. |
| Infiltration wells | - Good for BOD5 reduction and solid filtration. - Recharges groundwater. | - Less effective for nutrients and pathogens. - Risk of groundwater contamination. |
| Biological rotating contactors | - Effective for reducing BOD5 and suspended solids. - Compact. | - Requires mechanical equipment. - Less effective for nutrient treatment. |