References
Projects delivered across several continents
A selection of projects and technologies from the combined experience of the HydrensO team, in France and internationally: treating, reusing, measuring and controlling water to protect it and the natural environment.
Reference study · California (USA)
A metal packaging plant
Complete engineering, water balance, business model and financing plan: a project taken to bankable level.
Study completed in May 2026 · deployment not yet committed · design values from the study.
251 m³/day
(about 66,000 gal/day) of effluent treated, from two separate streams
≈ 81%
of water recycled and sent back to the process
Zero
liquid discharge: 100% of wastewater treated
< 5 mg/L
BOD at outlet, versus 1,900 mg/L at inlet
What the study includes
- 7 integrated modules, including rainwater harvesting and reuse from a 5.6 ha (13.8-acre) roof
- 3,000 m² (32,000 sq ft) of phytoremediation (willows, poplars) for the concentrate
- 6-month pilot at 1 m³/h (4.4 gpm) on real effluent, with a Go / No-Go report
- $898k in public incentives identified across three programs
- Replication model for 19 identical sites in the same group
What it demonstrates
We know how to size, cost and finance a complete industrial water loop.
Every project starts with an audit and then a pilot: you decide based on results measured on your own effluent.
The team's track record
Field experience, in France and internationally
The projects below were carried out by the HydrensO founders over the course of their careers. They are the foundation of the expertise we bring to your industrial site.
Treatment, reuse and regeneration
Industrial water loop · California, USA
251 m³/day (66,000 gal/day) of effluent; BOD of 1,900 mg/L at inlet.
Biological treatment, filtration, membranes and phytoremediation of concentrates.
Targets: about 81% recycled water, BOD < 5 mg/L and zero liquid discharge¹. Engineering study completed in May 2026, deployment not committed.
Plant-based data center cooling · concept
Heat to dissipate and water use linked to cooling.
Thermal loop separated from the IT circuit, planted field with water recovery and AI predictive control; conventional cooling kept as backup.
Objectives: recover part of the heat through plant evapotranspiration, produce biomass and support biodiversity.
Biofiltration and reuse · Equestrian center
Class C water leaving a constructed wetland.
Additional regeneration by biofiltration.
Upgrade from class C to class A+ (French reuse classes), according to project data; reuse for arena watering and horse showers.
Phytoremediation of industrial water · Campsas, France
Protect a sensitive receiving environment.
Planted discharge zone.
Objectives: zero discharge to the receiving environment in summer and nitrogen removal.
Biological treatment with rotating biological contactors · Luvigny, France
Saturated sand filter; inadequate discharge quality.
RBCs and lamella settling; capacity of 250 population equivalents.
Plant in operation; treatment quality improved according to the manufacturer. Estimated consumption: 0.6 kWh/m³.
Containerized wastewater treatment plants · France
Fit a treatment train into a compact format.
Sizing, equipment integration, prototype and industrialization in 20 or 40 ft containers.
Compact treatment range; technical integration prepared for manufacturing.
Municipal and industrial sanitation · Vietnam
Treat wastewater from new urban districts and industrial sites.
Management of wastewater treatment plant projects.
Installation and commissioning of an urban plant in Dong Thap; industrial effluent treatment projects in Vietnam.
Textile effluent treatment · Bangladesh
Handle wastewater from the textile industry.
Management of industrial treatment plant projects.
Dedicated textile effluent trains; pollution discharge reduction objective.
Arsenic treatment and drinking water · Vietnam and Bangladesh
Arsenic in the water source; need for drinking water access.
Arsenic treatment projects and school drinking water projects.
Installation and commissioning of a unit in Dong Thap; drinking water projects for schools in Vietnam.
Solar-powered drinking water · Laos
Combine drinking water access and energy availability.
Management of drinking water production projects using solar energy.
Water and renewable energy combined, adapted to local needs.
Residential and municipal sanitation · Qatar and UAE
Treat wastewater from homes and communities.
Project management and technical support for sanitation systems.
Technical support for wastewater treatment projects.
Phytoremediation of landfills and contaminated soils · USA
Rehabilitate land affected by pollution.
Design and installation of phytoremediation sites.
Plants used to rehabilitate sites and manage contamination.
Decentralized sanitation processes · Luxembourg
Advance decentralized treatment solutions.
Product development and R&D project management.
Development of solutions for on-site sanitation.
Willows and biomass valorization · Quebec, Canada
Match plant selection to field conditions.
Characterization of five cultivars across four plantations.
Comparison of growth performance and wood properties for plant selection and biomass valorization.
Analysis, measurement and AI-based control
Microfluidic microscopy and embedded AI
Observe and quantify the microscopic content of water.
Automated imaging, embedded analysis and tracking over time.
Counts, size distributions, drift detection and traceable data to inform water control.
Microalgae monitoring · Almería, Spain
Biomass measured by filtration, drying and weighing.
Estimation by imaging and AI; morphology tracking.
R² > 0.99 correlation with weighing under the tested conditions; fast measurement for crop monitoring.
Optical detection of microplastics
Detect microscopic particles in water.
Microfluidic microscopy and AI image analysis.
Microplastic detection demonstrated; additional insight into particulate contamination.
Phytoplankton identification · South Pacific samples
Identify and count marine microorganisms.
Imaging and automated AI recognition.
Applied to samples from a transect from the Marquesas to Chile; characterization of phytoplankton populations.
AI-based automated counting of airborne fibers
Manual microscopic analysis, sensitive to operator variability.
Motorized microscopy, image processing and neural networks for fiber counting.
100 fields analyzed in one minute in the published work; fewer counting errors and estimation of measurement uncertainty.
Automated microscopy for diagnostics · Africa and Indonesia
Shortage of specialized analysts in some remote areas.
Slide analysis by mobile microscopy and AI, applied to malaria.
Applications reported in Benin, Malawi, Uganda and Indonesia, to improve access to diagnosis.
Nanomaterials metrology laboratory · United Kingdom
Measure and characterize materials at very small scale.
Creation of a laboratory dedicated to nanomaterials metrology.
Development of scientific measurement and characterization capabilities.
Mobile, micro and nano technology center · Indonesia
Build research and technology innovation capabilities.
Leadership of a research center combining mobile, micro- and nanotechnologies.
Structuring of a research activity and international collaborations.
Digital control and deployment
Digital control of biofiltration · France and EU
Connect equipment and simplify operation.
Remote supervision and built-in IoT connectivity.
Easier deployment and remote control; centralized monitoring of water management equipment.
Digital control of industrial water treatment
Coordinate equipment and process monitoring.
Supervision and control tools for installations.
Centralized information and commands for running treatment.
Industrialization, growth and impact investing
SaaS ERP for the printing industry · France, Belgium, Switzerland and Spain
Digitize business management for printing companies.
Creation and development of SaaS business software.
Growth in four countries, fundraising and sale of the business.
SaaS logistics optimization
Structure and optimize logistics operations.
Leadership of a business combining engineering consultancy and SaaS solutions.
Consulting and digital tools offering for logistics.
Coastal protection with metamaterials · France
Bring a coastal ecosystem protection technology to market.
Support for lab-to-industry transfer, strategy and financing.
Technology refocused on coastal protection and its development structured.
Impact investing · Europe
Finance and support innovations with social and environmental impact.
Co-founding of a dedicated platform, project selection and investment structuring.
Creation of an impact financing vehicle and support for portfolio companies.
Growth experience: building and leading organizations of 5 to 600 people, in France and internationally.
CES Las Vegas: two members of the team have each taken part in four editions, presenting their innovations and building international relationships.
Do you really know the quality of your water, at process inlet and outlet?
Let's start with a water audit: a site-specific assessment to identify your savings potential and define the right solution.