Reducir, reutilizar, reciclar – ¿Sabías que?

The video tutorial explains how human waste can be used to increase soil fertility. It introduces Composta's toilet, which treats human waste before adding it to the soil, using sawdust to absorb liquids and odors. The microorganisms in the waste help kill harmful bacteria. After a year, the treated waste can be safely used as fertilizer.

What is the purpose of using sawdust in the treatment of human waste?

After how long can human waste be removed and used as fertilizer?