Let me introduce myself: I am the Vermicomposter, an ecological device and a symbol of renewal. My structure consists of multiple levels where worms break down organic waste, the final step in the food chain. The worms transform this material into nutrient-rich compost, and my plant-based filtration system purifies the residual water, making it clean and reusable for the well-being of the plants in our gardens and our green roof. I am both the end and the beginning of a new cycle, just as death is a part of life, turning waste into new resources.
Worm composting is one of the three stages in the on-site treatment of wastewater at the site. This process transforms greywater, from kitchens and bathrooms, and brown water, from faecal matter. It is represented by a filter measuring 18.68 m x 5.25 m and numerous worms that manage all of this grey and brown water within 48 hours.
Traditional industrial wastewater treatment plants transport waste through water, thus in a liquid state, to be filtered at stations. However, in this liquid state, there is little oxygen and therefore little life, which limits natural purification capabilities. This wastewater treatment system works in the opposite manner: by using minimal water from toilets and faucets equipped with water-saving systems, it channels the polluted liquid into the soil. Earthworms, along with soil microorganisms, remove most of the substances in the grey and brown water, resulting in nearly pure water at the output and gases, primarily CO2, which plants then utilize. This system is highly innovative, and facilities for filtering wastewater in public spaces are still in their early stages.