What the Eco Machine Is
\”Eco-Machine wastewater treatment\” by John Todd, image/information source: Omega Institute
The Eco Machine is a custom-designed ecological wastewater treatment system that uses living organisms—bacteria, fungi, plants, and sometimes small animals—to purify water without relying on synthetic chemicals. At the Omega Center for Sustainable Living (OCSL) in Rhinebeck, New York, it processes all of the campus’s grey and black water inside a greenhouse-like building that also functions as an educational space.
How It Works
The system channels wastewater through a sequence of tanks, constructed wetlands, and lagoons, each hosting diverse microbial and plant communities that break down pollutants. Gravity, sunlight, and biological processes drive treatment stages such as anaerobic and aerobic digestion, plant uptake, and final polishing through sand or filtration units before the clean effluent is returned to the local aquifer or reused for irrigation.
Biomimicry and Design Logic
The Eco Machine is explicitly inspired by natural aquatic ecosystems, where wetlands, ponds, and microbial communities collectively filter and transform organic waste into nutrients and biomass. Instead of a single engineered component, it uses a diverse assemblage of species arranged in series, mimicking the way water passes through different habitats in a healthy watershed and gaining resilience through redundancy and complexity.
Performance and Role at Omega
At Omega, the Eco Machine treats all campus wastewater and has processed tens of millions of gallons over its lifetime, meeting or exceeding regulatory standards for effluent quality. The OCSL building is certified under the Living Building Challenge, and the Eco Machine is central both to its net-positive water strategy and to its public education programme on ecological infrastructure.
Why It Matters for Regenerative Design
The Eco Machine turns an invisible liability—sewage—into a visible, productive landscape that supports biodiversity, education, and local water regeneration. As a precedent, it shows how future buildings and districts can integrate “living machines” into courtyards, atria, or greenhouses so that treatment, habitat creation, and public engagement co-exist in a single regenerative system.
