GWtec® Greywater Recycling System
Wastewater treatment and reuse
Efficiently recycling greywater to reduce potable water consumption and support sustainable water management.
Contact

DEHOUST GmbH
Company Established Year
Who is this solution for
Info
Available
Project Status
Looking to expand internationally
Doing business in
Awards and certifications
EN 16941‑2 Certification
Certified GWtec® greywater system as safe and hygienic under EU standards.
UN SDG Alignment
Acknowledged DEHOUST’s support for clean water, renewable energy, and climate protection.
DIBt Approval Expansion
Approved larger steel tank production to 200 m³ following German regulations.
Product description
GWtec® Greywater Recycling System by DEHOUST is an innovative solution designed to address the pressing issue of water scarcity and sustainability by efficiently recycling greywater. Greywater, generated from showers, baths, washbasins, and washing machines, is typically wasted and discharged into sewage systems. However, with the GWtec® system, this wastewater is transformed into hygienically safe process water through a combination of mechanical-biological filtration and ultrafiltration technologies.
The system begins by passing the greywater through coarse filters to remove large debris such as hair and lint. Subsequently, the water undergoes aerobic biological processes where contaminants are degraded by wastewater bacteria. Finally, ultrafiltration with a pore width of 38 nm ensures that the treated water is clear, odorless, and free from suspended solids and pathogens, meeting the stringent European standard EN 16941‑2.
Designed for a wide range of applications, from single-family homes to large commercial complexes, the GWtec® system provides a reliable source of service water for various non-potable uses such as toilet flushing, washing machines, irrigation, and floor cleaning. Its integrated dual-pump design and monitoring interface, DehoustConnect, ensure efficient and controlled distribution of the recycled water.
With over two decades of development and experience, DEHOUST has established itself as a leader in the greywater treatment market, offering one of the most efficient solutions available. By implementing the GWtec® system, users can significantly reduce their reliance on potable water, alleviate pressure on wastewater systems, and contribute to sustainable water management practices in both residential and commercial settings.
Key characteristics and environmental benefits
- Efficiently recycles greywater from showers, baths, washbasins, and washing machines
- Utilizes mechanical-biological filtration and ultrafiltration technologies for water treatment
- Removes hair, lint, particles, germs, and organic substances without chemicals
- Produces hygienically safe process water conforming to European standards
- Applicable for various settings including homes, hotels, sports facilities, and apartment complexes
- Reduces potable water consumption and eases pressure on wastewater systems
- Supports sustainable water management practices in residential and commercial environments
- Integrated dual-pump design and monitoring interface for efficient water distribution
- Over two decades of development and experience in greywater treatment solutions
- Contributes to water conservation and sustainable building practices
About the Company
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