Learn how it works!
Hover over the numbers to read about the process.

the sustainable toilet diagram

1. Human and animal waste is delivered to the digestion chamber.

2. Waste products sit in the digestor, where pathogens are broken down by microbes and heat.

3. The waste products give off methane gas (CH4) harnessed to power school kitchen.

4. Meals are prepared using methane powered gas ranges.

5. Solid waste settles to bottom of digestion chamber and gradually moves into secondary collection tank as slurry.

6. Waste slurry continues to break down in secondary collection tank for 60–90 days until inert.

7. Waste slurry is transported to an auxiliary storage bin until ready to be used at fertilizer.

8. Nitrogen-rich fertilizer is used to help grow corn, beans and trees.

9. Food is consumed, more waste is produced and process begins again.

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