In the sanitation sphere, Waste-to-Value (WTV) refers to a system that converts human waste into outputs of value, such as energy, fertilizer, or other byproducts.
Human waste that has been properly composted can provide a nutrient-rich soil amendment for agriculture purposes
Methane, generated as a byproduct of decomposition of excreta can be used for generating cooking gas and energy generation
Excreta can be collected and sold to produce energy commercially, with biochar, a potent fertilizer, being produced as a bi-product of burning.
The Systems Approach to Sanitation
Why is Waste-to-Value important?
To realize the full health and economic benefits of sanitation, the entire Sanitation Value Chain must be considered, from toilet use, collection, transportation, treatment and disposal. Waste-to-Value supports opportunities throughout the entire Sanitation Value Chain. By creating value for the user, incentive is built for the toilets to be used and maintained.
Waste-to-Value technologies can also reduce water-borne vector transmission, environmental degradation and human exposure to untreated excreta