HYDROMARS participates with leading Institutes and Multinationals in several European research programs to separate different types of wastewaters into absolutely pure water

The technology used by HYDROMARS significantly simplifies the water purification process with the simultaneous improvement in water purity levels. While other proposed space systems use 12 steps or more, in the HYDROMARS’s system, water is reconstituted in three basic steps (1) Separation of ultra-pure water from the waste streams; (2) Evaporation of volatile contaminants before or after the separation process; (3) Separation of water from the brine/sludge by evaporation or crystallization.

Since closing the water loop is critical, the robustness of the system is very important. The HYDROMARS’s system is characterized by a technical soundness TRL 6 (proven in industrial environment), low demand for electricity, no demand for chemicals, no demand for filter change, low running costs, reduced mass and volume as well as robustness of the whole system. Most spare parts of the system can be printed by 3D printers on the spaceship and Operations and Maintenance (O&M) are uncomplicated. Because of the few processing steps, very little hardware is needed. This enables low weight and size of HYDROMARS. The end result is absolutely pure water and the contaminants turned into gas or solids.

The recycling system used by HYDROMARS will greatly reduce the water required to produce clean water and enable reuse of often toxic contaminants from wastewater. This will made it a disruptive game-changer both in Space and on Earth.

Present Status: The technology used has been proven to remove all contaminants from water and make highest grade Ultrapure Water (See The work now focuses on designing the system for use in zero gravity and for recovering of waste materials from the wastewater concentrate.

Internal development of systems for zero gravity, prototype 2020

Test Results for HYDROMARS’s Equipment

Type of contaminationAmountMethodDetection limitTest byResult
Bacteria14 000 (after 7 days)Membrane filter countNational Bacteriologic Laboratory, StockholmBDL
Chlorine3.4 mg/lPhotometric analysis (Perkin Elmer)< 0.01 mg/lWater Protection Association of South West FinlandBDL
Salt water31 000 ppmIon chromatography< 1 ppmVBB Viak StockholmBDL
Trihalomethanes1 000 μg/lGas chromatography< 1μg/lUniversity of Turku, FinlandBDL
Radon380 Bq/lAlfa detection< 4 Bq/lSwedish Radiation Protection InstituteBDL
Cesium, Strontium, Plutonium, Radium2.4 BqLithium Drifted Germanium Detector< 0.1 BqRadiation Physics Department, University of LundBDL
Arsenic +310 mg/lAAS Graphite< 0.003 mg/lAnalytica AB, StockholmBDL
Arsenic +510 mg/lAAS Graphite< 0.003 mg/lAnalytica AB, StockholmBDL
Ag nanoparticles3100 μg/lHPLC< 2 μg/lIVL Swedish Environmental Research InstituteBDL
SiO210 000 μg/lAAS< 5 μg/lVattenfall AB, StockholmBDL
Setralin and 20 other pharmaceutical residuals4 ng/lHPLC< 0.8 ng/lIVL Swedish Environmental Research InstituteBDL
*BDL = below detection limit